AMD Radeon HD 6950 vs AMD Radeon R9 M395 Mac Edition
GPU Specs Compare
Graphics Card
Release Date
Dec 2010
May 2015
Generation
Northern Islands
Crystal System
Type
Desktop
Mobile
Bus Interface
PCIe 2.0 x16
MXM-B (3.0)
Clock Speeds
Memory Clock
1250 MHz
1365 MHz
Memory
Memory Size
2GB
2GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
256bit
Bandwidth
160.0GB/s
174.7GB/s
Render Config
Compute Units
22
28
Shading Units
1408
1792
TMUs
88
112
ROPs
32
32
L1 Cache
8 KB (per CU)
-
L2 Cache
512 KB
-
Theoretical Performance
Pixel Rate
25.60 GPixel/s
26.69 GPixel/s
Texture Rate
70.40 GTexel/s
93.41 GTexel/s
FP32 (float)
2.253 TFLOPS
2.989 TFLOPS
FP64 (double)
563.2 GFLOPS
373.6 GFLOPS
Graphics Processor
GPU Name
Cayman
Amethyst
GPU Variant
Cayman PRO(215-0807019)
Amethyst PRO(216-0872004)
Architecture
TeraScale 3
GCN 3.0
Foundry
TSMC
TSMC
Process Size
40 nm
28 nm
Transistors
2.64 billion
5 billion
Die Size
389 mm²
366 mm²
Board Design
TDP
200W
250W
Suggested PSU
550 W
-
Outputs
2x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
No outputs
Power Connectors
2x 6-pin
None
Graphics Features
DirectX
11.2 (11_0)
12 (12_0)
OpenGL
4.4
4.6
OpenCL
1.2
2.0
Vulkan
N/A
1.2
Shader Model
5.0
6.3