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GPU Comparison

Side-by-side comparison of specifications and performance

AMD Radeon RX 6900 XT

AMD Radeon RX 6900 XT

AMD Radeon R9 285

AMD Radeon R9 285

Performance Comparison

AMD Radeon RX 6900 XT

617%
617%

AMD Radeon R9 285

16%
16%
AMD Radeon RX 6900 XT is approximately 601% faster

Technical Specifications

SpecificationAMD Radeon RX 6900 XTAMD Radeon R9 285
Graphics ProcessorDifferent
Navi 21
Tonga
CoresDifferent
5120
1792
TMUsDifferent
320
112
ROPsDifferent
128
32
Memory SizeDifferent
16 GB
2 GB
Memory TypeDifferent
GDDR6
GDDR5
Bus Width
256 bit
256 bit

Graphics Processor

FeatureAMD Radeon RX 6900 XTAMD Radeon R9 285
GPU NameDifferent
Navi 21
Tonga
GPU VariantDifferent
Navi 21 XTX(215-121000167)
Tonga PRO(215-0851128)
ArchitectureDifferent
RDNA 2.0
GCN 3.0
Foundry
TSMC
TSMC
Process SizeDifferent
7 nm
28 nm
TransistorsDifferent
26,800 million
5,000 million
DensityDifferent
51.5M / mm²
13.7M / mm²
Die SizeDifferent
520 mm²
366 mm²
Chip PackageDifferent
BGA-2425
N/A

Graphics Card

FeatureAMD Radeon RX 6900 XTAMD Radeon R9 285
Release DateDifferent
Oct 28th, 2020
Sep 2nd, 2014
AvailabilityDifferent
Dec 8th, 2020
N/A
GenerationDifferent
Navi II(RX 6000)
Volcanic Islands(R9 200)
PredecessorDifferent
Navi
Sea Islands
SuccessorDifferent
Navi III
Pirate Islands
ProductionDifferent
Active
End-of-life
Launch PriceDifferent
999 USD
249 USD
Current PriceDifferent
Amazon/Newegg
N/A
Bus InterfaceDifferent
PCIe 4.0 x16
PCIe 3.0 x16
ReviewsDifferent
33 in our database
59 in our database

Clock Speeds

FeatureAMD Radeon RX 6900 XTAMD Radeon R9 285
Base ClockDifferent
1825 MHz
N/A
Game ClockDifferent
2015 MHz
N/A
Boost ClockDifferent
2250 MHz
N/A
Memory ClockDifferent
2000 MHz16 Gbps effective
1375 MHz5.5 Gbps effective
GPU ClockDifferent
N/A
918 MHz

Memory

FeatureAMD Radeon RX 6900 XTAMD Radeon R9 285
Memory SizeDifferent
16 GB
2 GB
Memory TypeDifferent
GDDR6
GDDR5
Memory Bus
256 bit
256 bit
BandwidthDifferent
512.0 GB/s
176.0 GB/s

Render Config

FeatureAMD Radeon RX 6900 XTAMD Radeon R9 285
Shading UnitsDifferent
5120
1792
TMUsDifferent
320
112
ROPsDifferent
128
32
Compute UnitsDifferent
80
28
RT CoresDifferent
80
N/A
L0 CacheDifferent
32 KB per WGP
N/A
L1 CacheDifferent
128 KB per Array
16 KB (per CU)
L2 CacheDifferent
4 MB
512 KB
L3 CacheDifferent
128 MB
N/A

Theoretical Performance

FeatureAMD Radeon RX 6900 XTAMD Radeon R9 285
Pixel RateDifferent
288.0 GPixel/s
29.38 GPixel/s
Texture RateDifferent
720.0 GTexel/s
102.8 GTexel/s
FP16 (half)Different
46.08 TFLOPS (2:1)
3.290 TFLOPS (1:1)
FP32 (float)Different
23.04 TFLOPS
3.290 TFLOPS
FP64 (double)Different
1,440.0 GFLOPS (1:16)
205.6 GFLOPS (1:16)

Board Design

FeatureAMD Radeon RX 6900 XTAMD Radeon R9 285
Slot WidthDifferent
Triple-slot
Dual-slot
LengthDifferent
267 mm10.5 inches
221 mm8.7 inches
HeightDifferent
120 mm4.7 inches
109 mm4.3 inches
WidthDifferent
50 mm2 inches
36 mm1.4 inches
TDPDifferent
300 W
190 W
Suggested PSUDifferent
700 W
450 W
OutputsDifferent
1x HDMI 2.12x DisplayPort 1.4a1x USB Type-C
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power ConnectorsDifferent
2x 8-pin
2x 6-pin
Part NumberDifferent
102-D412
N/A
Board NumberDifferent
109-D412A7-00_03
C766

Graphics Features

FeatureAMD Radeon RX 6900 XTAMD Radeon R9 285
DirectXDifferent
12 Ultimate (12_2)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
2.1
2.1
VulkanDifferent
1.3
1.2.170
Shader ModelDifferent
6.8
6.5

Comparison Summary

7
Specifications Compared
8
Feature Categories
57
Detailed Features

More Comparisons with AMD Radeon RX 6900 XT

Compare AMD Radeon RX 6900 XT with other GPUs of similar performance

AMD Radeon RX 6900 XT vs GeForce RTX 4070 Ti

GeForce RTX 4070 Ti Performance113%

GeForce RTX 4070 Ti is 13% faster than AMD Radeon RX 6900 XT

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AMD Radeon RX 6900 XT vs GeForce RTX 5070

GeForce RTX 5070 Performance112%

GeForce RTX 5070 is 12% faster than AMD Radeon RX 6900 XT

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AMD Radeon RX 6900 XT vs GeForce RTX 3090

GeForce RTX 3090 Performance111%

GeForce RTX 3090 is 11% faster than AMD Radeon RX 6900 XT

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AMD Radeon RX 6900 XT vs GeForce RTX 3080 Ti

GeForce RTX 3080 Ti Performance109%

GeForce RTX 3080 Ti is 9% faster than AMD Radeon RX 6900 XT

Compare Detailed Specs

AMD Radeon RX 6900 XT vs GeForce RTX 4070 SUPER

GeForce RTX 4070 SUPER Performance106%

GeForce RTX 4070 SUPER is 6% faster than AMD Radeon RX 6900 XT

Compare Detailed Specs

AMD Radeon RX 6900 XT vs Radeon RX 7900 GRE

Radeon RX 7900 GRE Performance104%

Radeon RX 7900 GRE is 4% faster than AMD Radeon RX 6900 XT

Compare Detailed Specs

More Comparisons with AMD Radeon R9 285

Compare AMD Radeon R9 285 with other GPUs of similar performance

AMD Radeon R9 285 vs Radeon HD 7970 GHz Edition

Radeon HD 7970 GHz Edition Performance114%

Radeon HD 7970 GHz Edition is 14% faster than AMD Radeon R9 285

Compare Detailed Specs

AMD Radeon R9 285 vs GeForce GTX 590

GeForce GTX 590 Performance114%

GeForce GTX 590 is 14% faster than AMD Radeon R9 285

Compare Detailed Specs

AMD Radeon R9 285 vs Radeon R9 280X

Radeon R9 280X Performance112%

Radeon R9 280X is 12% faster than AMD Radeon R9 285

Compare Detailed Specs

AMD Radeon R9 285 vs Radeon HD 6990

Radeon HD 6990 Performance110%

Radeon HD 6990 is 10% faster than AMD Radeon R9 285

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AMD Radeon R9 285 vs GeForce GTX 1050 Ti

GeForce GTX 1050 Ti Performance104%

GeForce GTX 1050 Ti is 4% faster than AMD Radeon R9 285

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AMD Radeon R9 285 vs GeForce GTX 680

GeForce GTX 680 Performance102%

GeForce GTX 680 is 2% faster than AMD Radeon R9 285

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