AMD Radeon R9 M395X Mac Edition vs AMD Radeon HD 8970 OEM
GPU Specs Compare
Graphics Card
Release Date
May 2015
Jan 2013
Generation
Crystal System
Sea Islands
Type
Mobile
Desktop
Bus Interface
MXM-B (3.0)
PCIe 3.0 x16
Clock Speeds
Memory Clock
1365 MHz
1375 MHz
Memory
Memory Size
4GB
3GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
384bit
Bandwidth
174.7GB/s
264.0GB/s
Render Config
Compute Units
32
32
Shading Units
2048
2048
TMUs
128
128
ROPs
32
32
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
768 KB
Theoretical Performance
Pixel Rate
29.09 GPixel/s
29.60 GPixel/s
Texture Rate
116.4 GTexel/s
118.4 GTexel/s
FP16 (half)
3.723 TFLOPS
-
FP32 (float)
3.723 TFLOPS
3.789 TFLOPS
FP64 (double)
232.7 GFLOPS
947.2 GFLOPS
Graphics Processor
GPU Name
Amethyst
Tahiti
GPU Variant
Amethyst XT
Tahiti XT(215-0821060)
Architecture
GCN 3.0
GCN 1.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
5 billion
4.313 billion
Die Size
366 mm²
352 mm²
Board Design
TDP
250W
250W
Outputs
No outputs
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
Power Connectors
None
1x 6-pin + 1x 8-pin
Suggested PSU
-
600 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