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GPU Comparison

Side-by-side comparison of specifications and performance

Performance Comparison

AMD Radeon R9 285

160%
160%

AMD Radeon HD 6950

62%
62%
AMD Radeon R9 285 is approximately 98% faster

Technical Specifications

SpecificationAMD Radeon R9 285AMD Radeon HD 6950
Graphics ProcessorDifferent
Tonga
Cayman
CoresDifferent
1792
1408
TMUsDifferent
112
88
ROPs
32
32
Memory Size
2 GB
2 GB
Memory Type
GDDR5
GDDR5
Bus Width
256 bit
256 bit

Graphics Processor

FeatureAMD Radeon R9 285AMD Radeon HD 6950
GPU NameDifferent
Tonga
Cayman
GPU VariantDifferent
Tonga PRO(215-0851128)
Cayman PRO(215-0807019)
ArchitectureDifferent
GCN 3.0
TeraScale 3
Foundry
TSMC
TSMC
Process SizeDifferent
28 nm
40 nm
TransistorsDifferent
5,000 million
2,640 million
DensityDifferent
13.7M / mm²
6.8M / mm²
Die SizeDifferent
366 mm²
389 mm²

Graphics Card

FeatureAMD Radeon R9 285AMD Radeon HD 6950
Release DateDifferent
Sep 2nd, 2014
Dec 14th, 2010
GenerationDifferent
Volcanic Islands(R9 200)
Northern Islands(HD 6900)
PredecessorDifferent
Sea Islands
Evergreen
SuccessorDifferent
Pirate Islands
Southern Islands
Production
End-of-life
End-of-life
Launch PriceDifferent
249 USD
299 USD
Bus InterfaceDifferent
PCIe 3.0 x16
PCIe 2.0 x16
ReviewsDifferent
59 in our database
111 in our database

Clock Speeds

FeatureAMD Radeon R9 285AMD Radeon HD 6950
GPU ClockDifferent
918 MHz
800 MHz
Memory ClockDifferent
1375 MHz5.5 Gbps effective
1250 MHz5 Gbps effective

Memory

FeatureAMD Radeon R9 285AMD Radeon HD 6950
Memory Size
2 GB
2 GB
Memory Type
GDDR5
GDDR5
Memory Bus
256 bit
256 bit
BandwidthDifferent
176.0 GB/s
160.0 GB/s

Render Config

FeatureAMD Radeon R9 285AMD Radeon HD 6950
Shading UnitsDifferent
1792
1408
TMUsDifferent
112
88
ROPs
32
32
Compute UnitsDifferent
28
22
L1 CacheDifferent
16 KB (per CU)
8 KB (per CU)
L2 Cache
512 KB
512 KB

Theoretical Performance

FeatureAMD Radeon R9 285AMD Radeon HD 6950
Pixel RateDifferent
29.38 GPixel/s
25.60 GPixel/s
Texture RateDifferent
102.8 GTexel/s
70.40 GTexel/s
FP16 (half)Different
3.290 TFLOPS (1:1)
N/A
FP32 (float)Different
3.290 TFLOPS
2.253 TFLOPS
FP64 (double)Different
205.6 GFLOPS (1:16)
563.2 GFLOPS (1:4)

Board Design

FeatureAMD Radeon R9 285AMD Radeon HD 6950
Slot Width
Dual-slot
Dual-slot
LengthDifferent
221 mm8.7 inches
286 mm11.3 inches
HeightDifferent
109 mm4.3 inches
126 mm5 inches
WidthDifferent
36 mm1.4 inches
42 mm1.7 inches
TDPDifferent
190 W
200 W
Suggested PSUDifferent
450 W
550 W
OutputsDifferent
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
2x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
Power Connectors
2x 6-pin
2x 6-pin
Board NumberDifferent
C766
109-C21647-00

Graphics Features

FeatureAMD Radeon R9 285AMD Radeon HD 6950
DirectXDifferent
12 (12_0)
11.2 (11_0)
OpenGLDifferent
4.6
4.4
OpenCLDifferent
2.1
1.2
VulkanDifferent
1.2.170
N/A
Shader ModelDifferent
6.5
5.0

Comparison Summary

7
Specifications Compared
8
Feature Categories
47
Detailed Features

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