AMD Radeon HD 6990M vs AMD Radeon HD 6930
GPU · Specs Compare
Graphics Card
Release Date
Jul 2011
Dec 2011
Generation
Vancouver
Northern Islands
Type
Mobile
Desktop
Bus Interface
MXM-B (3.0)
PCIe 2.0 x16
Clock Speeds
Memory Clock
900 MHz
1200 MHz
Memory
Memory Size
2GB
1024MB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
256bit
Bandwidth
115.2GB/s
153.6GB/s
Render Config
Compute Units
14
20
Shading Units
1120
1280
TMUs
56
80
ROPs
32
32
L1 Cache
8 KB (per CU)
8 KB (per CU)
L2 Cache
512 KB
512 KB
Theoretical Performance
Pixel Rate
22.88 GPixel/s
24.00 GPixel/s
Texture Rate
40.04 GTexel/s
60.00 GTexel/s
FP32 (float)
1.602 TFLOPS
1.920 TFLOPS
FP64 (double)
—
480.0 GFLOPS
Graphics Processor
GPU Name
Blackcomb
Cayman
GPU Variant
Blackcomb XTX(216-0811030)
Cayman CE(215-0807105)
Architecture
TeraScale 2
TeraScale 3
Foundry
TSMC
TSMC
Process Size
40 nm
40 nm
Transistors
1.7 billion
2.64 billion
Die Size
212 mm²
389 mm²
Board Design
TDP
100W
186W
Outputs
No outputs
2x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
Power Connectors
None
2x 6-pin
Suggested PSU
—
450 W
Graphics Features
DirectX
11.2 (11_0)
11.2 (11_0)
OpenGL
4.4
4.4
OpenCL
1.2
1.2
Vulkan
N/A
N/A
Shader Model
5.0
5.0
▲ Specs Compare
Data sourced from official specifications and benchmark tests.