AMD Radeon HD 7950M vs AMD Radeon HD 6870 X2

GPU · Specs Compare

Products
GPU AMD Radeon HD 7950M AMD · 2012-04
GPU AMD Radeon HD 6870 X2 AMD · 2011-07
Graphics Card
Release Date
Apr 2012
Jul 2011
Generation
London
Northern Islands
Type
Mobile
Desktop
Bus Interface
MXM-B (3.0)
PCIe 2.0 x16
Clock Speeds
Memory Clock
1000 MHz
1050 MHz
Memory
Memory Size
2GB
1024MB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
256bit
Bandwidth
128.0GB/s
134.4GB/s
Render Config
Compute Units
20
14
Shading Units
1280
1120
TMUs
80
56
ROPs
32
32
L1 Cache
16 KB (per CU)
8 KB (per CU)
L2 Cache
512 KB
512 KB
Theoretical Performance
Pixel Rate
22.40 GPixel/s
28.80 GPixel/s
Texture Rate
56.00 GTexel/s
50.40 GTexel/s
FP32 (float)
1.792 TFLOPS
2.016 TFLOPS
Graphics Processor
GPU Name
Wimbledon
Barts
GPU Variant
Wimbledon PRO
Barts XT(215-0798000)
Architecture
GCN 1.0
TeraScale 2
Foundry
TSMC
TSMC
Process Size
28 nm
40 nm
Transistors
2.8 billion
1.7 billion
Die Size
212 mm²
255 mm²
Board Design
TDP
75W
300W
Outputs
No outputs
2x DVI1x HDMI 1.3a2x mini-DisplayPort 1.1
Suggested PSU
—
700 W
Graphics Features
DirectX
12 (11_1)
11.2 (11_0)
OpenGL
4.6
4.4
OpenCL
1.2
1.2
Vulkan
1.2
N/A
Shader Model
5.1
5.0
▲ Specs Compare Data sourced from official specifications and benchmark tests.