AMD Radeon HD 7950 Mac Edition vs AMD Radeon Pro Duo Polaris
GPU Specs Compare
Graphics Card
Release Date
Mar 2013
Apr 2017
Generation
Southern Islands
Radeon Pro GCN
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Memory Clock
1250 MHz
1750 MHz
Memory
Memory Size
3GB
16GB
Memory Type
GDDR5
GDDR5
Memory Bus
384bit
256bit
Bandwidth
240.0GB/s
224.0GB/s
Render Config
Compute Units
28
36
Shading Units
1792
2304
TMUs
112
144
ROPs
32
32
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
768 KB
2 MB
Theoretical Performance
Pixel Rate
25.60 GPixel/s
39.78 GPixel/s
Texture Rate
89.60 GTexel/s
179.0 GTexel/s
FP32 (float)
2.867 TFLOPS
5.728 TFLOPS
FP64 (double)
716.8 GFLOPS
358.0 GFLOPS
FP16 (half)
-
5.728 TFLOPS
Graphics Processor
GPU Name
Tahiti
Ellesmere
GPU Variant
Tahiti PRO(215-0821056)
Ellesmere Gemini GL
Architecture
GCN 1.0
GCN 4.0
Foundry
TSMC
GlobalFoundries
Process Size
28 nm
14 nm
Transistors
4.313 billion
5.7 billion
Die Size
352 mm²
232 mm²
Board Design
TDP
200W
250W
Suggested PSU
550 W
600 W
Outputs
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
1x HDMI 2.0b3x DisplayPort 1.4a
Power Connectors
2x 6-pin
1x 6-pin + 1x 8-pin
Graphics Features
DirectX
12 (11_1)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
1.2
2.1
Vulkan
1.2
1.3
Shader Model
5.1
6.7