AMD Radeon HD 7950M vs AMD Radeon E8870
GPU Specs Compare
Graphics Card
Release Date
Apr 2012
Sep 2015
Generation
London
Embedded
Type
Mobile
Mobile
Bus Interface
MXM-B (3.0)
MXM-B (3.0)
Clock Speeds
Memory Clock
1000 MHz
1500 MHz
Memory
Memory Size
2GB
4GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
128bit
Bandwidth
128.0GB/s
96.00GB/s
Render Config
Compute Units
20
12
Shading Units
1280
768
TMUs
80
48
ROPs
32
16
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
256 KB
Theoretical Performance
Pixel Rate
22.40 GPixel/s
16.00 GPixel/s
Texture Rate
56.00 GTexel/s
48.00 GTexel/s
FP32 (float)
1.792 TFLOPS
1.536 TFLOPS
FP64 (double)
-
96.00 GFLOPS
Graphics Processor
GPU Name
Wimbledon
Saturn
GPU Variant
Wimbledon PRO
Saturn PRO
Architecture
GCN 1.0
GCN 2.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
2.8 billion
2.08 billion
Die Size
212 mm²
160 mm²
Board Design
TDP
75W
75W
Outputs
No outputs
No outputs
Power Connectors
-
None
Graphics Features
DirectX
12 (11_1)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
1.2
2.0
Vulkan
1.2
1.2
Shader Model
5.1
6.3