AMD Radeon HD 8970M vs AMD Radeon HD 7950
GPU Specs Compare
Graphics Card
Release Date
May 2013
Jan 2012
Generation
Solar System
Southern Islands
Type
Mobile
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
850 MHz
-
Boost Clock
900 MHz
-
Memory Clock
1200 MHz
1250 MHz
Memory
Memory Size
4GB
3GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
384bit
Bandwidth
153.6GB/s
240.0GB/s
Render Config
Compute Units
20
28
Shading Units
1280
1792
TMUs
80
112
ROPs
32
32
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
768 KB
Theoretical Performance
Pixel Rate
28.80 GPixel/s
25.60 GPixel/s
Texture Rate
72.00 GTexel/s
89.60 GTexel/s
FP32 (float)
2.304 TFLOPS
2.867 TFLOPS
FP64 (double)
144.0 GFLOPS
716.8 GFLOPS
Graphics Processor
GPU Name
Neptune
Tahiti
GPU Variant
Neptune XT(216-0847000)
Tahiti PRO(215-0821056)
Architecture
GCN 1.0
GCN 1.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
2.8 billion
4.313 billion
Die Size
212 mm²
352 mm²
Board Design
TDP
100W
200W
Outputs
No outputs
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
Suggested PSU
-
550 W
Power Connectors
-
2x 6-pin
Graphics Features
DirectX
12 (11_1)
12 (11_1)
OpenGL
4.6
4.6
OpenCL
1.2
1.2
Vulkan
1.2
1.2
Shader Model
5.1
5.1
📊 Benchmark
3DMark Time Spy
-
1,969
3DMark Time Spy Extreme
-
1,019