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GPU Comparison

Side-by-side comparison of specifications and performance

Performance Comparison

AMD Radeon HD 6950

62%
62%

AMD Radeon HD 7970

183%
183%
AMD Radeon HD 7970 is approximately 121% faster

Technical Specifications

SpecificationAMD Radeon HD 6950AMD Radeon HD 7970
Graphics ProcessorDifferent
Cayman
Tahiti
CoresDifferent
1408
2048
TMUsDifferent
88
128
ROPs
32
32
Memory SizeDifferent
2 GB
3 GB
Memory Type
GDDR5
GDDR5
Bus WidthDifferent
256 bit
384 bit

Graphics Processor

FeatureAMD Radeon HD 6950AMD Radeon HD 7970
GPU NameDifferent
Cayman
Tahiti
GPU VariantDifferent
Cayman PRO(215-0807019)
Tahiti XT(215-0821060)
ArchitectureDifferent
TeraScale 3
GCN 1.0
Foundry
TSMC
TSMC
Process SizeDifferent
40 nm
28 nm
TransistorsDifferent
2,640 million
4,313 million
DensityDifferent
6.8M / mm²
12.3M / mm²
Die SizeDifferent
389 mm²
352 mm²

Graphics Card

FeatureAMD Radeon HD 6950AMD Radeon HD 7970
Release DateDifferent
Dec 14th, 2010
Jan 9th, 2012
GenerationDifferent
Northern Islands(HD 6900)
Southern Islands(HD 7900)
PredecessorDifferent
Evergreen
Northern Islands
SuccessorDifferent
Southern Islands
Sea Islands
Production
End-of-life
End-of-life
Launch PriceDifferent
299 USD
549 USD
Bus InterfaceDifferent
PCIe 2.0 x16
PCIe 3.0 x16
ReviewsDifferent
111 in our database
191 in our database
AnnouncedDifferent
N/A
Dec 22nd, 2011

Clock Speeds

FeatureAMD Radeon HD 6950AMD Radeon HD 7970
GPU ClockDifferent
800 MHz
925 MHz
Memory ClockDifferent
1250 MHz5 Gbps effective
1375 MHz5.5 Gbps effective

Memory

FeatureAMD Radeon HD 6950AMD Radeon HD 7970
Memory SizeDifferent
2 GB
3 GB
Memory Type
GDDR5
GDDR5
Memory BusDifferent
256 bit
384 bit
BandwidthDifferent
160.0 GB/s
264.0 GB/s

Render Config

FeatureAMD Radeon HD 6950AMD Radeon HD 7970
Shading UnitsDifferent
1408
2048
TMUsDifferent
88
128
ROPs
32
32
Compute UnitsDifferent
22
32
L1 CacheDifferent
8 KB (per CU)
16 KB (per CU)
L2 CacheDifferent
512 KB
768 KB

Theoretical Performance

FeatureAMD Radeon HD 6950AMD Radeon HD 7970
Pixel RateDifferent
25.60 GPixel/s
29.60 GPixel/s
Texture RateDifferent
70.40 GTexel/s
118.4 GTexel/s
FP32 (float)Different
2.253 TFLOPS
3.789 TFLOPS
FP64 (double)Different
563.2 GFLOPS (1:4)
947.2 GFLOPS (1:4)

Board Design

FeatureAMD Radeon HD 6950AMD Radeon HD 7970
Slot Width
Dual-slot
Dual-slot
LengthDifferent
286 mm11.3 inches
275 mm10.8 inches
HeightDifferent
126 mm5 inches
111 mm4.4 inches
WidthDifferent
42 mm1.7 inches
38 mm1.5 inches
TDPDifferent
200 W
250 W
Suggested PSUDifferent
550 W
600 W
OutputsDifferent
2x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
Power ConnectorsDifferent
2x 6-pin
1x 6-pin + 1x 8-pin
Board NumberDifferent
109-C21647-00
109-C38637-00

Graphics Features

FeatureAMD Radeon HD 6950AMD Radeon HD 7970
DirectXDifferent
11.2 (11_0)
12 (11_1)
OpenGLDifferent
4.4
4.6
OpenCLDifferent
1.2
2.1 (1.2)
VulkanDifferent
N/A
1.2.170
Shader ModelDifferent
5.0
6.5 (5.1)

Comparison Summary

7
Specifications Compared
8
Feature Categories
47
Detailed Features

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