AMD Radeon E8870 vs AMD Radeon HD 7950
GPU · Specs Compare
Graphics Card
Release Date
Sep 2015
Jan 2012
Generation
Embedded
Southern Islands
Type
Mobile
Desktop
Bus Interface
MXM-B (3.0)
PCIe 3.0 x16
Clock Speeds
Memory Clock
1500 MHz
1250 MHz
Memory
Memory Size
4GB
3GB
Memory Type
GDDR5
GDDR5
Memory Bus
128bit
384bit
Bandwidth
96.00GB/s
240.0GB/s
Render Config
Compute Units
12
28
Shading Units
768
1792
TMUs
48
112
ROPs
16
32
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
256 KB
768 KB
Theoretical Performance
Pixel Rate
16.00 GPixel/s
25.60 GPixel/s
Texture Rate
48.00 GTexel/s
89.60 GTexel/s
FP32 (float)
1.536 TFLOPS
2.867 TFLOPS
FP64 (double)
96.00 GFLOPS
716.8 GFLOPS
Graphics Processor
GPU Name
Saturn
Tahiti
GPU Variant
Saturn PRO
Tahiti PRO(215-0821056)
Architecture
GCN 2.0
GCN 1.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
2.08 billion
4.313 billion
Die Size
160 mm²
352 mm²
Board Design
TDP
75W
200W
Outputs
No outputs
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
Power Connectors
None
2x 6-pin
Suggested PSU
—
550 W
Graphics Features
DirectX
12 (12_0)
12 (11_1)
OpenGL
4.6
4.6
OpenCL
2.0
1.2
Vulkan
1.2
1.2
Shader Model
6.3
5.1
Benchmark
3DMark Time Spy
—
1,969
3DMark Time Spy Extreme
—
1,019
▲ Specs Compare
Data sourced from official specifications and benchmark tests.