AMD Radeon HD 8990 OEM vs AMD Radeon HD 7950M
GPU · Specs Compare
Graphics Card
Release Date
Apr 2013
Apr 2012
Generation
Sea Islands
London
Type
Desktop
Mobile
Bus Interface
PCIe 3.0 x16
MXM-B (3.0)
Clock Speeds
Base Clock
950 MHz
—
Boost Clock
1000 MHz
—
Memory Clock
1500 MHz
1000 MHz
Memory
Memory Size
3GB
2GB
Memory Type
GDDR5
GDDR5
Memory Bus
384bit
256bit
Bandwidth
288.0GB/s
128.0GB/s
Render Config
Compute Units
32
20
Shading Units
2048
1280
TMUs
128
80
ROPs
32
32
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
768 KB
512 KB
Theoretical Performance
Pixel Rate
32.00 GPixel/s
22.40 GPixel/s
Texture Rate
128.0 GTexel/s
56.00 GTexel/s
FP32 (float)
4.096 TFLOPS
1.792 TFLOPS
FP64 (double)
1024 GFLOPS
—
Graphics Processor
GPU Name
Malta
Wimbledon
GPU Variant
Malta XT(215-0849026)
Wimbledon PRO
Architecture
GCN 1.0
GCN 1.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
4.313 billion
2.8 billion
Die Size
365 mm²
212 mm²
Board Design
TDP
375W
75W
Suggested PSU
750 W
—
Outputs
1x DVI4x mini-DisplayPort 1.2
No outputs
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.