AMD Radeon HD 6950 vs AMD Radeon Sky 700
GPU Specs Compare
Graphics Card
Release Date
Dec 2010
Mar 2013
Generation
Northern Islands
Radeon Sky
Type
Desktop
Desktop
Bus Interface
PCIe 2.0 x16
PCIe 3.0 x16
Clock Speeds
Memory Clock
1250 MHz
1375 MHz
Memory
Memory Size
2GB
6GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
384bit
Bandwidth
160.0GB/s
264.0GB/s
Render Config
Compute Units
22
28
Shading Units
1408
1792
TMUs
88
112
ROPs
32
32
L1 Cache
8 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
768 KB
Theoretical Performance
Pixel Rate
25.60 GPixel/s
28.80 GPixel/s
Texture Rate
70.40 GTexel/s
100.8 GTexel/s
FP32 (float)
2.253 TFLOPS
3.226 TFLOPS
FP64 (double)
563.2 GFLOPS
806.4 GFLOPS
Graphics Processor
GPU Name
Cayman
Tahiti
GPU Variant
Cayman PRO(215-0807019)
Tahiti PRO GL
Architecture
TeraScale 3
GCN 1.0
Foundry
TSMC
TSMC
Process Size
40 nm
28 nm
Transistors
2.64 billion
4.313 billion
Die Size
389 mm²
352 mm²
Board Design
TDP
200W
225W
Suggested PSU
550 W
550 W
Outputs
2x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
1x DisplayPort 1.2
Power Connectors
2x 6-pin
1x 8-pin
Graphics Features
DirectX
11.2 (11_0)
12 (11_1)
OpenGL
4.4
4.6
OpenCL
1.2
1.2
Vulkan
N/A
1.2
Shader Model
5.0
5.1