AMD Radeon RX 480 Mobile vs AMD Radeon HD 8990 OEM
GPU Specs Compare
Graphics Card
Release Date
Aug 2016
Apr 2013
Generation
Mobility Radeon
Sea Islands
Type
Mobile
Desktop
Bus Interface
MXM-B (3.0)
PCIe 3.0 x16
Clock Speeds
Base Clock
1000 MHz
950 MHz
Boost Clock
1077 MHz
1000 MHz
Memory Clock
2000 MHz
1500 MHz
Memory
Memory Size
8GB
3GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
384bit
Bandwidth
256.0GB/s
288.0GB/s
Render Config
Compute Units
36
32
Shading Units
2304
2048
TMUs
144
128
ROPs
32
32
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
2 MB
768 KB
Theoretical Performance
Pixel Rate
34.46 GPixel/s
32.00 GPixel/s
Texture Rate
155.1 GTexel/s
128.0 GTexel/s
FP16 (half)
4.963 TFLOPS
-
FP32 (float)
4.963 TFLOPS
4.096 TFLOPS
FP64 (double)
310.2 GFLOPS
1024 GFLOPS
Graphics Processor
GPU Name
Ellesmere
Malta
GPU Variant
Ellesmere XT
Malta XT(215-0849026)
Architecture
GCN 4.0
GCN 1.0
Foundry
GlobalFoundries
TSMC
Process Size
14 nm
28 nm
Transistors
5.7 billion
4.313 billion
Die Size
232 mm²
365 mm²
Board Design
TDP
100W
375W
Outputs
No outputs
1x DVI4x mini-DisplayPort 1.2
Power Connectors
None
2x 8-pin
Suggested PSU
-
750 W
Graphics Features
DirectX
12 (12_0)
12 (11_1)
OpenGL
4.6
4.6
OpenCL
2.1
1.2
Vulkan
1.2
1.2
Shader Model
6.4
5.1