AMD Radeon HD 6970 vs AMD Radeon R9 M295X Mac Edition
GPU · Specs Compare
Graphics Card
Release Date
Dec 2010
Nov 2014
Generation
Northern Islands
Crystal System
Type
Desktop
Mobile
Bus Interface
PCIe 2.0 x16
MXM-B (3.0)
Clock Speeds
Memory Clock
1375 MHz
1362 MHz
Memory
Memory Size
2GB
4GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
256bit
Bandwidth
176.0GB/s
174.3GB/s
Render Config
Compute Units
24
32
Shading Units
1536
2048
TMUs
96
128
ROPs
32
32
L1 Cache
8 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
512 KB
Theoretical Performance
Pixel Rate
28.16 GPixel/s
27.20 GPixel/s
Texture Rate
84.48 GTexel/s
108.8 GTexel/s
FP32 (float)
2.703 TFLOPS
3.482 TFLOPS
FP64 (double)
675.8 GFLOPS
217.6 GFLOPS
FP16 (half)
—
3.482 TFLOPS
Graphics Processor
GPU Name
Cayman
Amethyst
GPU Variant
Cayman XT(215-0807007)
Amethyst XT
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
250W
250W
Suggested PSU
600 W
—
Outputs
2x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
No outputs
Power Connectors
1x 6-pin + 1x 8-pin
—
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
▲ Specs Compare
Data sourced from official specifications and benchmark tests.