AMD Radeon HD 7950M vs AMD Radeon HD 7990
GPU · Specs Compare
Graphics Card
Release Date
Apr 2012
Apr 2013
Generation
London
Southern Islands
Type
Mobile
Desktop
Bus Interface
MXM-B (3.0)
PCIe 3.0 x16
Clock Speeds
Memory Clock
1000 MHz
1500 MHz
Base Clock
—
950 MHz
Boost Clock
—
1000 MHz
Memory
Memory Size
2GB
3GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
384bit
Bandwidth
128.0GB/s
288.0GB/s
Render Config
Compute Units
20
32
Shading Units
1280
2048
TMUs
80
128
ROPs
32
32
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
768 KB
Theoretical Performance
Pixel Rate
22.40 GPixel/s
32.00 GPixel/s
Texture Rate
56.00 GTexel/s
128.0 GTexel/s
FP32 (float)
1.792 TFLOPS
4.096 TFLOPS
FP64 (double)
—
1024 GFLOPS
Graphics Processor
GPU Name
Wimbledon
Malta
GPU Variant
Wimbledon PRO
Malta XT(215-0849026)
Architecture
GCN 1.0
GCN 1.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
2.8 billion
4.313 billion
Die Size
212 mm²
365 mm²
Board Design
TDP
75W
375W
Outputs
No outputs
1x DVI4x mini-DisplayPort 1.2
Suggested PSU
—
750 W
Power Connectors
—
2x 8-pin
Graphics Features
DirectX
12 (11_1)
12 (11_1)
OpenGL
4.6
4.6
OpenCL
1.2
1.2
Vulkan
1.2
1.2
Shader Model
5.1
5.1
▲ Specs Compare
Data sourced from official specifications and benchmark tests.