AMD Radeon HD 8990 OEM vs AMD Radeon HD 8970M
GPU Specs Compare
Graphics Card
Release Date
Apr 2013
May 2013
Generation
Sea Islands
Solar System
Type
Desktop
Mobile
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
950 MHz
850 MHz
Boost Clock
1000 MHz
900 MHz
Memory Clock
1500 MHz
1200 MHz
Memory
Memory Size
3GB
4GB
Memory Type
GDDR5
GDDR5
Memory Bus
384bit
256bit
Bandwidth
288.0GB/s
153.6GB/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
28.80 GPixel/s
Texture Rate
128.0 GTexel/s
72.00 GTexel/s
FP32 (float)
4.096 TFLOPS
2.304 TFLOPS
FP64 (double)
1024 GFLOPS
144.0 GFLOPS
Graphics Processor
GPU Name
Malta
Neptune
GPU Variant
Malta XT(215-0849026)
Neptune XT(216-0847000)
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
100W
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