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Radeon RX 6000 series

From Wikipedia, the free encyclopedia

AMD Radeon RX 6000 series

AMD Radeon RX 6900 XT, the flagship card of the RX 6000 series
Release dateNovember 18, 2020; 4 years ago (2020-11-18)
CodenameNavi 2x (nicknamed "Big Navi")
ArchitectureRDNA 2
Transistors
  • 5.4B (Navi 24) 6 nm
  • 11.06B (Navi 23) 7 nm[1]
  • 17.2B (Navi 22) 7 nm
  • 26.8B (Navi 21) 7 nm
Fabrication processTSMC N7 (FinFET)
TSMC N6 (FinFET)
Cards
Entry-level
  • Radeon RX 6300M
  • Radeon RX 6400
  • Radeon RX 6450M
  • Radeon RX 6500M
Mid-range
  • Radeon RX 6500 XT
  • Radeon RX 6550S
  • Radeon RX 6550M
  • Radeon RX 6600S
  • Radeon RX 6600M
  • Radeon RX 6600
  • Radeon RX 6600 XT
  • Radeon RX 6650M
  • Radeon RX 6650M XT
  • Radeon RX 6650 XT
High-end
  • Radeon RX 6700S
  • Radeon RX 6700M
  • Radeon RX 6700
  • Radeon RX 6700 XT
  • Radeon RX 6750 GRE
  • Radeon RX 6750 XT
  • Radeon RX 6800S
  • Radeon RX 6800M
  • Radeon RX 6800
  • Radeon RX 6800 XT
  • Radeon RX 6850M XT
Enthusiast
  • Radeon RX 6900 XT
  • Radeon RX 6950 XT
API support
DirectX
OpenCLOpenCL 2.1
OpenGLOpenGL 4.6
VulkanVulkan 1.3
SPIR-V
History
PredecessorRadeon RX 5000 series
SuccessorRadeon RX 7000 series
Support status
Supported

The Radeon RX 6000 series is a series of graphics processing units developed by AMD, based on their RDNA 2 architecture.[2] It was announced on October 28, 2020[3] and is the successor to the Radeon RX 5000 series. It consists of the entry-level RX 6400, mid-range RX 6500 XT, high-end RX 6600, RX 6600 XT, RX 6650 XT, RX 6700, RX 6700 XT, upper high-end RX 6750 XT, RX 6800, RX 6800 XT, and enthusiast RX 6900 XT and RX 6950 XT for desktop computers; and the RX 6600M, RX 6700M, and RX 6800M for laptops.[4][5] A sub-series for mobile, Radeon RX 6000S (consisting of RX 6600S, RX 6700S, and RX 6800S), was announced in CES 2022, targeting thin and light laptop designs.

The series is designed to compete with Nvidia's GeForce 30 series and Intel's Arc Alchemist series of cards. It is also the first generation of AMD GPUs that supports hardware accelerated real-time ray tracing, variable-rate shading and mesh shaders.[6]

History

[edit]

On September 14, 2020, AMD hinted at the physical design of its RX 6000 series through a tweet shared on social messaging service Twitter. At the same time, it launched a virtual island inside the video game Fortnite containing a large-scale rendition of the RX 6000 hardware design, which players could freely explore using the game's Creative mode.[7]

AMD officially unveiled the first three cards, the RX 6800, RX 6800 XT, and RX 6900 XT, in an event titled "Where Gaming Begins: Ep. 2" on October 28.[8] In the event, they announced the RX 6800 XT as its flagship graphics processor, comparing its performance to that of Nvidia's RTX 3080 graphics card in 1440p and 4K resolution gaming. The 6800 XT was announced with a price tag of $649 USD, $50 lower than the RTX 3080's starting price of $699.[8] They then introduced the RX 6800 as a competitor to Nvidia's previous-generation RTX 2080 Ti, priced at $579 compared to the 2080 Ti's $999;[8] and the RX 6900 XT as its top card, claiming performance comparable with Nvidia's RTX 3090, but with lower power consumption and a launch price of $999, $500 cheaper than the 3090.[8]

The Radeon RX 6800 and 6800 XT were released on November 18, 2020, and the RX 6900 XT was released on December 8, 2020.[9][10]

On February 3, 2021, Gigabyte registered a range of RX 6700 XT graphics cards with the Eurasian Economic Commission (EEC), with the filing indicating that all seven would ship with 12 GB of memory.[11] On March 3, 2021, AMD officially announced the RX 6700 XT card, set to compete with Nvidia's RTX 3060 Ti and 3070 cards.[12] It launched on March 18, 2021.[4]

On May 31, 2021, AMD announced the RX 6000M series of GPUs designed for laptops,[13][14] including the RX 6600M, RX 6700M, and RX 6800M. They became available on June 1.[13]

On June 23, Gigabyte registered six RX 6600 XT graphics cards with the EEC, indicating they would all have 8 GB of memory.[15][16][17] This was just over a month after ASRock made similar filings for both the RX 6600 and 6600 XT, each with 8 GB of memory.[18][19][20] On July 5, VideoCardz discovered that Taiwanese graphics card retailer PowerColor had already created product pages for the unannounced Radeon 6600 and 6600 XT GPUs.[21][22]

On July 30, AMD announced the RX 6600 and 6600 XT GPUs, which were released on August 11, 2021. The RX 6600 XT is available for $379 USD MSRP.[23]

In early 2022, AMD announced the low-end SKUs of the 6000 series; the RX 6400 and RX 6500 XT. These cards support only 4 PCIe lanes (albeit at PCIe 4.0 speeds), which can bottleneck performance on low-end machines lacking PCIe 4.0.[24] They also lack GPU-accelerated video encoding features offered by the higher-end models.

Availability issues

[edit]

Much like Nvidia's competing GeForce 30 series, releases sold out almost immediately due to a combination of low stock and scalping bots.[25]

RX 6800 and 6800 XT

[edit]

The RX 6800 and 6800 XT were launched on November 18, 2020, but due to low stock availability, sold out at most retailers that day.[9][26][27] American retailer Micro Center restricted sales to in-store only, claiming that stock "will be extremely limited at launch".[28] PCMag reported that both cards on Newegg sold out as early as 6:05 a.m. PST, and that they were unavailable on AMD's own store website by 6:11 a.m.[26] Retailer B&H Photo Video refused to accept orders for the cards, stating in part, "We do not know and are therefore unable to provide a date or time for when these items will become available to purchase."[26]

Scalpers were reportedly reselling the GPUs on eBay for around US$1000–1500, roughly double the launch price.[9] Frustrated social media users tried to derail the listings by using bots to make fake bids on the scalped GPUs at absurd prices; in one instance, an auction for an RX 6800 XT saw bids as high as US$70,000.[29]

RX 6900 XT

[edit]

The RX 6900 XT was launched on December 8, 2020, and similarly to the RX 6800 and 6800 XT, it sold out on the same day it was released.[30][10] According to PCMag, it was listed as out of stock on Newegg by 6:02 a.m. PST, just two minutes after it went on sale. AMD's store website, struggling to keep up with the high number of visitors, kept displaying 503 Service Temporarily Unavailable errors to customers attempting to buy the graphics card; by 6:35 a.m., it was sold out.[10]

Radeon RX 6000 series features

[edit]

Features of the AMD Radeon RX 6000 series:

  • RDNA 2 microarchitecture
  • New TSMC N7 manufacturing process
  • New TSMC N6 manufacturing process for RX 6500 and RX 6400
  • DirectX 12 Ultimate support
  • Added L3 cache (branded as Infinity Cache), up to 128 MB
  • GDDR6 memory
  • PCIe gen 4 interface
  • Added ray-tracing support with RT cores
  • AV1 video decoding support (except for Navi 24 products)
  • Added Resizable BAR functionality
  • DisplayPort 1.4a
  • HDMI 2.1 support

Products

[edit]

Desktop

[edit]
Model
(Code name)
Release Date
& Price
Architecture
fab
Transistors
& die size
Core Fillrate[a][b][c] Processing power[a][d]
(GFLOPS)
Infinity Cache Memory TBP Bus
interface
Config[e] Clock[a]
(MHz)
Texture
(GT/s)
Pixel
(GP/s)
Half Single Double Size Bandwidth
(GB/s)
Size Bandwidth
(GB/s)
Bus type
& width
Clock
(MT/s)

Radeon RX 6300
(Navi 24)[31][32][33][f]
Jan 4, 2022[g]
OEM
RDNA 2
TSMC N6
5.4×109
107 mm2
768:48:32:12
12 CU
1000
2040
48
97.9
32
65.3
3,072
6,267
1536
3,133
96
195.8
8 MB 104 2 GB 64 GDDR6
32-bit
16000 32 W PCIe 4.0
×4
Radeon RX 6400
(Navi 24)[34][35][f]
Jan 19, 2022
$159 USD
1923
2321
92.3
111.4
61.5
74.3
5,907
7,130
2,954
3,565
184.6
222.8
16 MB 208 4 GB 128 GDDR6
64-bit
53 W
Radeon RX 6500 XT
(Navi 24)[36][37][38][f]
Jan 19, 2022
$199 USD (4GB)
$219 USD (8GB)
1024:64:32:16
16 CU
2310
2815
147.8
180.2
73.9
90.1
9,462
11,530
4,731
5,765
295.6
360.3
232 4 GB
8 GB
144 18000 107 W
113 W
Radeon RX 6600
(Navi 23)[39][40]
Oct 13, 2021
$329 USD
RDNA 2
TSMC N7
11.06×109
237 mm2
1792:112:64:28
28 CU
1626
2491
182.3
279
104.1
159.4
11,658
17,860
5,828
8,928
364.2
558
32 MB 412.9 8 GB 224 GDDR6
128-bit
14000 132 W PCIe 4.0
×8
Radeon RX 6600 XT
(Navi 23)[41][42][43][44]
Aug 11, 2021
$379 USD
2048:128:64:32
32 CU
1968
2589
251.9
331.4
126
165.7
16,122
21,209
8,061
10,605
503.8
662.8
444.9 256 16000 160 W
Radeon RX 6650 XT
(Navi 23)[45][46]
May 10, 2022
$399 USD
2055
2635
263
337.2
131.5
168.6
16,835
21,586
8,417
10,793
526.1
674.6
468.9 280 17500 180 W
Radeon RX 6700
(Navi 22)[47][48][49][50]
Jun 9, 2021 17.2×109
335 mm2
2304:144:64:36
36 CU
1941
2450
279.5
352.8
124.2
156.8
17,888
22,579
8,944
11,290
559
705.6
80 MB 1065 10 GB 320 GDDR6
160-bit
16000 175 W PCIe 4.0
×16
Radeon RX 6750 GRE 10GB
(Navi 22)[51][52][53]
Oct 18, 2023
$269 USD
170 W
Radeon RX 6700 XT
(Navi 22)[54][55][56]
Mar 18, 2021
$479 USD
2560:160:64:40
40 CU
2321
2581
371.4
413
148.5
165.2
23,767
26,429
11,884
13,215
742.7
825.9
96 MB 1278 12 GB 384 GDDR6
192-bit
230 W
Radeon RX 6750 GRE 12GB
(Navi 22)[57][58][53]
Oct 18, 2023
$289 USD
Radeon RX 6750 XT
(Navi 22)[59][60]
May 10, 2022
$549 USD
2150
2600
344
416
137.6
166.4
22,016
26,624
11,008
13,312
688
832
1326 432 18000 250 W
Radeon RX 6800
(Navi 21)[61][62][63][64]
Nov 18, 2020
$579 USD
26.8×109
520 mm2
3840:240:96:60
60 CU
1700
2105
408
505.2
163.2
202.1
26,112
32,333
13,056
16,166
816
1,010
128 MB 1432.6 16 GB 512 GDDR6
256-bit
16000
Radeon RX 6800 XT
(Navi 21)[61][65][63][64]
Nov 18, 2020
$649 USD
4608:288:128:72
72 CU
1825
2250
525.6
648
233.6
288
33,638
41,472
16,819
20,736
1,051
1,296
1664.2 300 W
Radeon RX 6900 XT
(Navi 21)[61][66][63][64]
Dec 8, 2020
$999 USD
5120:320:128:80
80 CU
1825
2250
584
720
233.6
288
37,376
46,080
18,688
23,040
1,168
1,440
Radeon RX 6950 XT
(Navi 21)[67][68]
May 10, 2022
$1,099 USD
1890
2310
604.8
739.2
241.9
295.7
38,707
47,309
19,354
23,654
1,210
1,478
1793.5 576 18000 335 W
  1. ^ a b c Boost values (if available) are stated below the base value in italic.
  2. ^ Texture fillrate is calculated as the number of Texture Mapping Units multiplied by the base (or boost) core clock speed.
  3. ^ Pixel fillrate is calculated as the number of Render Output Units multiplied by the base (or boost) core clock speed.
  4. ^ Precision performance is calculated from the base (or boost) core clock speed based on a FMA operation.
  5. ^ Unified shaders : Texture mapping units : Render output units : Ray accelerators and Compute units (CU)
  6. ^ a b c Navi 24 lacks hardware video encoder.
  7. ^ Actual release date unknown; RX 6300M release date is listed instead.

Mobile

[edit]
Model
(Code name)
Release date Architecture
fab
Transistors
& die size
Core Fillrate[a][b][c] Processing power[a][d]
(GFLOPS)
Infinity
Cache
Memory HW Decoder HW Encoder TDP Bus
interface
Config[e] Clock[a]
(MHz)
Texture
(GT/s)
Pixel
(GP/s)
Half Single Double Size Bandwidth
(GB/s)
Bus type
& width
Clock
(MT/s)
AV1 H265 4K H264 AV1 H265 4K H264

Radeon RX 6300M
(Navi 24)[f][69]
Jan 4, 2022 RDNA 2
TSMC N6
5.4×109
107 mm2
768:64:32:12
12 CU

1512

97.76

48.38

6,270

3,130

195.6
8 MB 2 GB 64 GDDR6
32-bit
16000 No Yes Yes No No No 25 W PCIe 4.0
×4
Radeon RX 6450M
(Navi 24)[70]
Jan 4, 2023
2220

118.10

71.04

7,600

3,780

236.3
16 MB 4 GB 128 GDDR6
64-bit
50 W
Radeon RX 6550S
(Navi 24)[71]
1024:64:32:16
16 CU

2170

154.20

69.44

9,900

4,900

306.3
Radeon RX 6500M
(Navi 24)[f][72]
Jan 4, 2022
2191

155.7

70.11

9,970

4,980

311.2
Radeon RX 6550M
(Navi 24)[73]
Jan 4, 2023
2560

182.10

81.92

11,600

5,800

362.5
144 18000 80 W
Radeon RX 6600S
(Navi 23)[74]
Jan 4, 2022 RDNA 2
TSMC N7
11.06×109
237 mm2
1792:128:64:28
28 CU

1881

244.2

120.3

15,630

7,810

448.1
32 MB 224 GDDR6
128-bit
14000 Yes Yes Yes PCIe 4.0
×8
Radeon RX 6700S
(Navi 23)[75]

1890

247.5

120.9

15,840

7,920

495.0
8 GB
Radeon RX 6600M
(Navi 23)[76]
May 31, 2021
2177

274.2

139.3

17,550

7,800

487.5
100 W
Radeon RX 6650M
(Navi 23)[77]
Jan 4, 2022
2222

276.6

139.3

17,700

8,850

553.1
256 16000 120 W
Radeon RX 6800S
(Navi 23)[78]
2048:128:64:32
32 CU

1975

288.0

134.4

18,430

9,220

576.5
100 W
Radeon RX 6650M XT
(Navi 23)[79]

2162

311.5

142.2

19,940

9,970

623.1
120 W
Radeon RX 6700M
(Navi 22)[80]
May 31, 2021 17.2×109
335 mm2
2304:144:64:36
36 CU

2300

331.4

147.2

21,209

10,605

662.1
80 MB 10 GB 320 GDDR6
160-bit
135 W PCIe 4.0
×16
Radeon RX 6800M
(Navi 22)[81]
2560:160:64:40
40 CU

2300

368.0

147.2

23,550

11,780

736.2
96 MB 12 GB 384 GDDR6
192-bit
145+ W
Radeon RX 6850M XT
(Navi 22)[82]
Jan 4, 2022
2580

415.6

157.6

26,430

13,209

825.6
432 18000 165 W
  1. ^ a b c Boost values (if available) are stated below the base value in italic.
  2. ^ Texture fillrate is calculated as the number of Texture Mapping Units multiplied by the base (or boost) core clock speed.
  3. ^ Pixel fillrate is calculated as the number of Render Output Units multiplied by the base (or boost) core clock speed.
  4. ^ Precision performance is calculated from the base (or boost) core clock speed based on a FMA operation.
  5. ^ Unified shaders : Texture mapping units : Render output units : Ray accelerators and Compute units CU
  6. ^ a b Lacks hardware video encoder.

Workstation

[edit]

See also

[edit]

References

[edit]
  1. ^ btarunr (June 10, 2021). "AMD Navi 23 Silicon Detailed, Higher Transistor Count than RX 5700 XT". TechPowerUp. Retrieved April 12, 2022.
  2. ^ "AMD Teases Radeon RX 6000 Card Performance Numbers: Aiming For 3080?". anandtech.com. AnandTech. October 8, 2020. Retrieved October 25, 2020.
  3. ^ "AMD Announces Ryzen "Zen 3" and Radeon "RDNA2" Presentations for October: A New Journey Begins". anandtech.com. AnandTech. September 9, 2020. Retrieved October 25, 2020.
  4. ^ a b Ridley, Jacob (March 3, 2021). "AMD RX 6700 XT graphics card release date, specs, performance, and price". PC Gamer. Retrieved March 3, 2021.
  5. ^ Cutress, Ian (January 12, 2021). "AMD to Launch Mid-Range RDNA 2 Desktop Graphics in First Half 2021". AnandTech. Retrieved January 4, 2021.
  6. ^ Judd, Will (October 28, 2020). "AMD unveils three Radeon 6000 graphics cards with ray tracing and RTX-beating performance". Eurogamer. Retrieved August 1, 2021.
  7. ^ Goslin, Austen (September 15, 2020). "AMD gives fans first look at new RX 6000 graphics cards ... in Fortnite". Polygon. Retrieved January 22, 2021.
  8. ^ a b c d Goslin, Austen; Sarkar, Samit (October 28, 2020). "AMD announces Radeon RX 6000 series GPUs". Polygon. Retrieved January 22, 2021.
  9. ^ a b c Klotz, Aaron (November 18, 2020). "Paper Launch? Radeon RX 6800, 6800 XT Out of Stock". Tom's Hardware. Retrieved January 8, 2021.
  10. ^ a b c Kan, Michael (December 9, 2020). "AMD's Radeon RX 6900 XT Graphics Cards Immediately Sell Out". PCMag. Retrieved January 20, 2021.
  11. ^ Tyson, Mark (February 4, 2021). "Gigabyte Radeon RX 6700 XT range registered with the EEC". Hexus. Retrieved February 10, 2021.
  12. ^ Judd, Will (March 3, 2021). "AMD announces $479 RX 6700 XT graphics card for 1440p gaming". Eurogamer. Retrieved March 3, 2021.
  13. ^ a b Chin, Monica (May 31, 2021). "AMD announces the Radeon RX 6000M series with RDNA 2 architecture". The Verge. Retrieved June 1, 2021.
  14. ^ Takahashi, Dean (May 31, 2021). "AMD launches Radeon RX 6000M GPUs for gaming laptops". VentureBeat. Retrieved June 1, 2021.
  15. ^ "Gigabyte expects Radeon RX 6600 XT to feature 8GB of memory". VideoCardz. June 23, 2021. Retrieved July 15, 2021.
  16. ^ Thubron, Rob (June 23, 2021). "Gigabyte lists six AMD Radeon RX 6600 XT cards on EEC website". TechSpot. Retrieved July 15, 2021.
  17. ^ White, Monica (June 23, 2021). "New leak shows that Gigabyte is releasing six RX 6600 XT cards". Digital Trends. Retrieved July 15, 2021.
  18. ^ Ridley, Jacob (May 11, 2021). "Manufacturer hints at 8GB VRAM for AMD's unreleased RX 6600-series". PC Gamer. Retrieved July 15, 2021.
  19. ^ Allan, Darren (May 11, 2021). "AMD RX 6600 and 6600 XT GPUs could have less VRAM than expected". TechRadar. Retrieved July 15, 2021.
  20. ^ "ASRock Radeon RX 6600 (XT) series spotted in EEC filing". VideoCardz. May 11, 2021. Retrieved July 15, 2021.
  21. ^ "AMD Radeon RX 6600 XT and RX 6600 listed on PowerColor website". VideoCardz. July 5, 2021. Retrieved July 15, 2021.
  22. ^ Alderson, Alex (July 5, 2021). "PowerColor confirms that AMD is on the verge of announcing the Radeon RX 6600 and RX 6600 XT". Notebookcheck. Retrieved July 15, 2021.
  23. ^ Ridley, Jacob (July 30, 2021). "AMD announces '1080p beast' Radeon RX 6600 XT for $379". PC Gamer. Retrieved July 30, 2021.
  24. ^ Judd, Will (January 24, 2022). "AMD Radeon RX 6500 XT review: PCIe 3.0 vs PCIe 4.0". Eurogamer. Retrieved March 12, 2022.
  25. ^ Deakin, Daniel (December 15, 2020). "Nvidia GeForce RTX 30 series scalping generates over US$22 million in sales via eBay as AMD's Big Navi GPUs and Zen 3 CPUs also fall victim to profiteering". Notebook Check. Retrieved January 8, 2021.
  26. ^ a b c Kan, Michael (November 18, 2020). "AMD's Radeon RX 6800 Cards Sell Out Instantly, Sparking Cries of 'Paper Launch'". PCMag. Retrieved January 8, 2021.
  27. ^ Sandhu, Tarinder (November 18, 2020). "AMD Radeon RX 6800 and RX 6800 XT stock levels disarmingly low". Hexus. Retrieved January 8, 2021.
  28. ^ James, Dave (November 18, 2020). "AMD RX 6800-series stock 'extremely limited' at launch today". PC Gamer. Retrieved January 8, 2021.
  29. ^ Martin, Alexander (November 27, 2020). "Gamers derail eBay listings to stop hardware scalpers profiting on latest technology". Sky News UK. Retrieved January 8, 2021.
  30. ^ Endicott, Sean (December 8, 2020). "AMD Radeon RX 6900 XT is sold out, but you can still buy one in a prebuilt PC". Windows Central. Retrieved January 8, 2021.
  31. ^ "AMD Radeon RX 6300M Specs". Techpowerup. Retrieved May 21, 2024.
  32. ^ "AMD Radeon RX 6300M Mobile Graphics". AMD. Retrieved May 21, 2024.
  33. ^ "Dell AMD Radeon RX 6300 2GB GDDR6". Dell. Retrieved May 21, 2024.
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  38. ^ Liu, Zhiye (July 28, 2022). "Radeon RX 6500 XT 8GB Only Costs $20 More Than 4GB Version". Tom's Hardware. Retrieved November 11, 2022.
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  40. ^ "AMD Radeon RX 6600 Specs". TechPowerUp. Retrieved April 15, 2022.
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  44. ^ Larabel, Michael (July 29, 2021). "AMD Radeon RX 6600 XT Launching For 1080p RDNA2 Gaming At ~$379 USD". Phoronix. Retrieved July 30, 2021.
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  49. ^ "AMD Radeon RX 6700". VideoCardz. Retrieved June 15, 2022.
  50. ^ Tyson, Mark (June 13, 2022). "AMD Clears Up Sapphire Radeon 6700 Confusion: It's Definitely an RX". Tom's Hardware. Retrieved June 15, 2022.
  51. ^ "AMD Radeon RX 6750 GRE 10GB". AMD. Retrieved November 9, 2023.
  52. ^ "AMD Radeon RX 6750 GRE 10GB". VideoCardz. Retrieved November 9, 2023.
  53. ^ a b WhyCry (October 17, 2023). "AMD announces two Radeon RX 6750 GRE models at $269 (10GB) and $289 (12GB)". VideoCardz. Retrieved October 17, 2023.
  54. ^ "AMD Radeon RX 6700 XT Graphics". AMD. Retrieved April 15, 2022.
  55. ^ "AMD Radeon RX 6700 XT Specs". TechPowerUp. Retrieved April 15, 2022.
  56. ^ May, Keith (March 17, 2021). "AMD Radeon RX 6700 XT 12 GB Reference Edition Review". Wccftech. Retrieved March 29, 2021.
  57. ^ "AMD Radeon RX 6750 GRE 12GB". AMD. Retrieved November 9, 2023.
  58. ^ "AMD Radeon RX 6750 GRE 12GB". VideoCardz. Retrieved November 9, 2023.
  59. ^ "AMD Radeon RX 6750 XT Graphics Card". AMD. Retrieved May 10, 2022.
  60. ^ "AMD Radeon RX 6750 XT Specs". TechPowerUp. Retrieved May 10, 2022.
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