AMD Radeon Pro Duo Polaris vs AMD Radeon HD 7970 X2
GPU · Specs Compare
Graphics Card
Release Date
Apr 2017
Aug 2012
Generation
Radeon Pro GCN
Southern Islands
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Memory Clock
1750 MHz
1375 MHz
Memory
Memory Size
16GB
3GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
384bit
Bandwidth
224.0GB/s
264.0GB/s
Render Config
Compute Units
36
32
Shading Units
2304
2048
TMUs
144
128
ROPs
32
32
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
2 MB
768 KB
Theoretical Performance
Pixel Rate
39.78 GPixel/s
29.60 GPixel/s
Texture Rate
179.0 GTexel/s
118.4 GTexel/s
FP16 (half)
5.728 TFLOPS
—
FP32 (float)
5.728 TFLOPS
3.789 TFLOPS
FP64 (double)
358.0 GFLOPS
947.2 GFLOPS
Graphics Processor
GPU Name
Ellesmere
New Zealand
GPU Variant
Ellesmere Gemini GL
—
Architecture
GCN 4.0
GCN 1.0
Foundry
GlobalFoundries
TSMC
Process Size
14 nm
28 nm
Transistors
5.7 billion
4.313 billion
Die Size
232 mm²
352 mm²
Board Design
TDP
250W
500W
Suggested PSU
600 W
900 W
Outputs
1x HDMI 2.0b3x DisplayPort 1.4a
2x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
Power Connectors
1x 6-pin + 1x 8-pin
3x 8-pin
Graphics Features
DirectX
12 (12_0)
12 (11_1)
OpenGL
4.6
4.6
OpenCL
2.1
1.2
Vulkan
1.3
1.2
Shader Model
6.7
5.1
▲ Specs Compare
Data sourced from official specifications and benchmark tests.