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GPU Comparison

Side-by-side comparison of specifications and performance

Performance Comparison

AMD Radeon R9 280X

180%
180%

AMD Radeon HD 6950

56%
56%
AMD Radeon R9 280X is approximately 124% faster

Technical Specifications

SpecificationAMD Radeon R9 280XAMD Radeon HD 6950
Graphics ProcessorDifferent
Tahiti
Cayman
CoresDifferent
2048
1408
TMUsDifferent
128
88
ROPs
32
32
Memory SizeDifferent
3 GB
2 GB
Memory Type
GDDR5
GDDR5
Bus WidthDifferent
384 bit
256 bit

Graphics Processor

FeatureAMD Radeon R9 280XAMD Radeon HD 6950
GPU NameDifferent
Tahiti
Cayman
GPU VariantDifferent
Tahiti XTL(215-0821065)
Cayman PRO(215-0807019)
ArchitectureDifferent
GCN 1.0
TeraScale 3
Foundry
TSMC
TSMC
Process SizeDifferent
28 nm
40 nm
TransistorsDifferent
4,313 million
2,640 million
DensityDifferent
12.3M / mm²
6.8M / mm²
Die SizeDifferent
352 mm²
389 mm²

Graphics Card

FeatureAMD Radeon R9 280XAMD Radeon HD 6950
Release DateDifferent
Oct 8th, 2013
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 Price
299 USD
299 USD
Bus InterfaceDifferent
PCIe 3.0 x16
PCIe 2.0 x16
ReviewsDifferent
105 in our database
111 in our database

Clock Speeds

FeatureAMD Radeon R9 280XAMD Radeon HD 6950
Base ClockDifferent
850 MHz
N/A
Boost ClockDifferent
1000 MHz
N/A
Memory ClockDifferent
1500 MHz6 Gbps effective
1250 MHz5 Gbps effective
GPU ClockDifferent
N/A
800 MHz

Memory

FeatureAMD Radeon R9 280XAMD Radeon HD 6950
Memory SizeDifferent
3 GB
2 GB
Memory Type
GDDR5
GDDR5
Memory BusDifferent
384 bit
256 bit
BandwidthDifferent
288.0 GB/s
160.0 GB/s

Render Config

FeatureAMD Radeon R9 280XAMD Radeon HD 6950
Shading UnitsDifferent
2048
1408
TMUsDifferent
128
88
ROPs
32
32
Compute UnitsDifferent
32
22
L1 CacheDifferent
16 KB (per CU)
8 KB (per CU)
L2 CacheDifferent
768 KB
512 KB

Theoretical Performance

FeatureAMD Radeon R9 280XAMD Radeon HD 6950
Pixel RateDifferent
32.00 GPixel/s
25.60 GPixel/s
Texture RateDifferent
128.0 GTexel/s
70.40 GTexel/s
FP32 (float)Different
4.096 TFLOPS
2.253 TFLOPS
FP64 (double)Different
1,024.0 GFLOPS (1:4)
563.2 GFLOPS (1:4)

Board Design

FeatureAMD Radeon R9 280XAMD Radeon HD 6950
Slot Width
Dual-slot
Dual-slot
LengthDifferent
275 mm10.8 inches
286 mm11.3 inches
HeightDifferent
109 mm4.3 inches
126 mm5 inches
WidthDifferent
36 mm1.4 inches
42 mm1.7 inches
TDPDifferent
250 W
200 W
Suggested PSUDifferent
600 W
550 W
OutputsDifferent
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
2x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
Power ConnectorsDifferent
1x 6-pin + 1x 8-pin
2x 6-pin
Board NumberDifferent
C386
109-C21647-00

Graphics Features

FeatureAMD Radeon R9 280XAMD Radeon HD 6950
DirectXDifferent
12 (11_1)
11.2 (11_0)
OpenGLDifferent
4.6
4.4
OpenCLDifferent
2.1 (1.2)
1.2
VulkanDifferent
1.2.170
N/A
Shader ModelDifferent
6.5 (5.1)
5.0

Comparison Summary

7
Specifications Compared
8
Feature Categories
48
Detailed Features

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