AMD Radeon R9 M290X Mac Edition vs AMD Radeon HD 6970
GPU · Specs Compare
Graphics Card
Release Date
Nov 2014
Dec 2010
Generation
Crystal System
Northern Islands
Type
Mobile
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 2.0 x16
Clock Speeds
Base Clock
850 MHz
—
Boost Clock
975 MHz
—
Memory Clock
1365 MHz
1375 MHz
Memory
Memory Size
2GB
2GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
256bit
Bandwidth
174.7GB/s
176.0GB/s
Render Config
Compute Units
16
24
Shading Units
1024
1536
TMUs
64
96
ROPs
32
32
L1 Cache
16 KB (per CU)
8 KB (per CU)
L2 Cache
512 KB
512 KB
Theoretical Performance
Pixel Rate
31.20 GPixel/s
28.16 GPixel/s
Texture Rate
62.40 GTexel/s
84.48 GTexel/s
FP32 (float)
1.997 TFLOPS
2.703 TFLOPS
FP64 (double)
124.8 GFLOPS
675.8 GFLOPS
Graphics Processor
GPU Name
Pitcairn
Cayman
GPU Variant
Pitcairn PRO(215-0828062)
Cayman XT(215-0807007)
Architecture
GCN 1.0
TeraScale 3
Foundry
TSMC
TSMC
Process Size
28 nm
40 nm
Transistors
2.8 billion
2.64 billion
Die Size
212 mm²
389 mm²
Board Design
TDP
80W
250W
Outputs
No outputs
2x 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 (11_1)
11.2 (11_0)
OpenGL
4.6
4.4
OpenCL
1.2
1.2
Vulkan
1.2
N/A
Shader Model
5.1
5.0
▲ Specs Compare
Data sourced from official specifications and benchmark tests.