AMD Radeon R9 M390X vs AMD Radeon HD 6970 X2
GPU · Specs Compare
Graphics Card
Release Date
May 2015
Unknown
Generation
Crystal System
Northern Islands
Type
Mobile
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 2.0 x16
Clock Speeds
Memory Clock
1250 MHz
1375 MHz
Memory
Memory Size
4GB
2GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
256bit
Bandwidth
160.0GB/s
176.0GB/s
Render Config
Compute Units
32
24
Shading Units
2048
1536
TMUs
128
96
ROPs
32
32
L1 Cache
16 KB (per CU)
8 KB (per CU)
L2 Cache
512 KB
512 KB
Theoretical Performance
Pixel Rate
23.14 GPixel/s
28.16 GPixel/s
Texture Rate
92.54 GTexel/s
84.48 GTexel/s
FP16 (half)
2.961 TFLOPS
—
FP32 (float)
2.961 TFLOPS
2.703 TFLOPS
FP64 (double)
185.1 GFLOPS
—
Graphics Processor
GPU Name
Amethyst
Antilles
GPU Variant
Amethyst XT
Antilles XT(215-0807027)
Architecture
GCN 3.0
TeraScale 3
Foundry
TSMC
TSMC
Process Size
28 nm
40 nm
Transistors
5 billion
2.64 billion
Die Size
366 mm²
389 mm²
Board Design
TDP
75W
375W
Outputs
No outputs
2x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
Power Connectors
None
3x 8-pin
Suggested PSU
—
750 W
Graphics Features
DirectX
12 (12_0)
11.2 (11_0)
OpenGL
4.6
4.4
OpenCL
2.0
1.2
Vulkan
1.2
N/A
Shader Model
6.3
5.0
▲ Specs Compare
Data sourced from official specifications and benchmark tests.