AMD Radeon HD 8950M vs AMD Radeon HD 6870 X2
GPU Specs Compare
Graphics Card
Release Date
May 2013
Jul 2011
Generation
Solar System
Northern Islands
Type
Mobile
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 2.0 x16
Clock Speeds
Memory Clock
1375 MHz
1050 MHz
Memory
Memory Size
2GB
1024MB
Memory Type
GDDR5
GDDR5
Memory Bus
128bit
256bit
Bandwidth
88.00GB/s
134.4GB/s
Render Config
Compute Units
12
14
Shading Units
768
1120
TMUs
48
56
ROPs
16
32
L1 Cache
16 KB (per CU)
8 KB (per CU)
L2 Cache
256 KB
512 KB
Theoretical Performance
Pixel Rate
17.20 GPixel/s
28.80 GPixel/s
Texture Rate
51.60 GTexel/s
50.40 GTexel/s
FP32 (float)
1.651 TFLOPS
2.016 TFLOPS
FP64 (double)
103.2 GFLOPS
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Graphics Processor
GPU Name
Saturn
Barts
GPU Variant
Saturn XT
Barts XT(215-0798000)
Architecture
GCN 2.0
TeraScale 2
Foundry
TSMC
TSMC
Process Size
28 nm
40 nm
Transistors
2.08 billion
1.7 billion
Die Size
160 mm²
255 mm²
Board Design
TDP
100W
300W
Outputs
No outputs
2x DVI1x HDMI 1.3a2x mini-DisplayPort 1.1
Suggested PSU
-
700 W
Graphics Features
DirectX
12 (12_0)
11.2 (11_0)
OpenGL
4.6
4.4
OpenCL
2.0
1.2
Vulkan
1.2
N/A
Shader Model
6.3
5.0