AMD Radeon HD 6990M vs AMD Radeon R9 M280X
GPU Specs Compare
Graphics Card
Release Date
Jul 2011
Feb 2015
Generation
Vancouver
Gem System
Type
Mobile
Mobile
Bus Interface
MXM-B (3.0)
PCIe 3.0 x16
Clock Speeds
Memory Clock
900 MHz
1375 MHz
Base Clock
-
900 MHz
Boost Clock
-
1000 MHz
Memory
Memory Size
2GB
4GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
128bit
Bandwidth
115.2GB/s
88.00GB/s
Render Config
Compute Units
14
14
Shading Units
1120
896
TMUs
56
56
ROPs
32
16
L1 Cache
8 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
256 KB
Theoretical Performance
Pixel Rate
22.88 GPixel/s
16.00 GPixel/s
Texture Rate
40.04 GTexel/s
56.00 GTexel/s
FP32 (float)
1.602 TFLOPS
1.792 TFLOPS
FP64 (double)
-
112.0 GFLOPS
Graphics Processor
GPU Name
Blackcomb
Saturn
GPU Variant
Blackcomb XTX(216-0811030)
Saturn XT(216-0843024)
Architecture
TeraScale 2
GCN 2.0
Foundry
TSMC
TSMC
Process Size
40 nm
28 nm
Transistors
1.7 billion
2.08 billion
Die Size
212 mm²
160 mm²
Board Design
TDP
100W
Unknown
Outputs
No outputs
Portable Device Dependent
Power Connectors
None
-
Graphics Features
DirectX
11.2 (11_0)
12 (12_0)
OpenGL
4.4
4.6
OpenCL
1.2
2.1
Vulkan
N/A
1.2.170
Shader Model
5.0
6.5