AMD Radeon HD 7970 GHz Edition vs AMD Radeon HD 8970M
GPU · Specs Compare
Graphics Card
Release Date
Jun 2012
May 2013
Generation
Southern Islands
Solar System
Type
Desktop
Mobile
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
1000 MHz
850 MHz
Boost Clock
1050 MHz
900 MHz
Memory Clock
1500 MHz
1200 MHz
Memory
Memory Size
3GB
4GB
Memory Type
GDDR5
GDDR5
Memory Bus
384bit
256bit
Bandwidth
288.0GB/s
153.6GB/s
Render Config
Compute Units
32
20
Shading Units
2048
1280
TMUs
128
80
ROPs
32
32
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
768 KB
512 KB
Theoretical Performance
Pixel Rate
33.60 GPixel/s
28.80 GPixel/s
Texture Rate
134.4 GTexel/s
72.00 GTexel/s
FP32 (float)
4.301 TFLOPS
2.304 TFLOPS
FP64 (double)
1075 GFLOPS
144.0 GFLOPS
Graphics Processor
GPU Name
Tahiti
Neptune
GPU Variant
Tahiti XT2(215-0821065)
Neptune XT(216-0847000)
Architecture
GCN 1.0
GCN 1.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
4.313 billion
2.8 billion
Die Size
352 mm²
212 mm²
Board Design
TDP
300W
100W
Suggested PSU
700 W
—
Outputs
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
No outputs
Power Connectors
1x 6-pin + 1x 8-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
▲ Specs Compare
Data sourced from official specifications and benchmark tests.