AMD Radeon HD 6990M vs AMD Radeon RX 480 Mobile
GPU Specs Compare
Graphics Card
Release Date
Jul 2011
Aug 2016
Generation
Vancouver
Mobility Radeon
Type
Mobile
Mobile
Bus Interface
MXM-B (3.0)
MXM-B (3.0)
Clock Speeds
Memory Clock
900 MHz
2000 MHz
Base Clock
-
1000 MHz
Boost Clock
-
1077 MHz
Memory
Memory Size
2GB
8GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
256bit
Bandwidth
115.2GB/s
256.0GB/s
Render Config
Compute Units
14
36
Shading Units
1120
2304
TMUs
56
144
ROPs
32
32
L1 Cache
8 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
2 MB
Theoretical Performance
Pixel Rate
22.88 GPixel/s
34.46 GPixel/s
Texture Rate
40.04 GTexel/s
155.1 GTexel/s
FP32 (float)
1.602 TFLOPS
4.963 TFLOPS
FP16 (half)
-
4.963 TFLOPS
FP64 (double)
-
310.2 GFLOPS
Graphics Processor
GPU Name
Blackcomb
Ellesmere
GPU Variant
Blackcomb XTX(216-0811030)
Ellesmere XT
Architecture
TeraScale 2
GCN 4.0
Foundry
TSMC
GlobalFoundries
Process Size
40 nm
14 nm
Transistors
1.7 billion
5.7 billion
Die Size
212 mm²
232 mm²
Board Design
TDP
100W
100W
Outputs
No outputs
No outputs
Power Connectors
None
None
Graphics Features
DirectX
11.2 (11_0)
12 (12_0)
OpenGL
4.4
4.6
OpenCL
1.2
2.1
Vulkan
N/A
1.2
Shader Model
5.0
6.4