AMD Radeon HD 6930 vs AMD Radeon Sky 900
GPU · Specs Compare
Graphics Card
Release Date
Dec 2011
Mar 2013
Generation
Northern Islands
Radeon Sky
Type
Desktop
Desktop
Bus Interface
PCIe 2.0 x16
PCIe 3.0 x16
Clock Speeds
Memory Clock
1200 MHz
1250 MHz
Base Clock
—
825 MHz
Boost Clock
—
950 MHz
Memory
Memory Size
1024MB
3GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
384bit
Bandwidth
153.6GB/s
240.0GB/s
Render Config
Compute Units
20
28
Shading Units
1280
1792
TMUs
80
112
ROPs
32
32
L1 Cache
8 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
768 KB
Theoretical Performance
Pixel Rate
24.00 GPixel/s
30.40 GPixel/s
Texture Rate
60.00 GTexel/s
106.4 GTexel/s
FP32 (float)
1.920 TFLOPS
3.405 TFLOPS
FP64 (double)
480.0 GFLOPS
851.2 GFLOPS
Graphics Processor
GPU Name
Cayman
Tahiti
GPU Variant
Cayman CE(215-0807105)
Orthrus
Architecture
TeraScale 3
GCN 1.0
Foundry
TSMC
TSMC
Process Size
40 nm
28 nm
Transistors
2.64 billion
4.313 billion
Die Size
389 mm²
352 mm²
Board Design
TDP
186W
300W
Suggested PSU
450 W
700 W
Outputs
2x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
1x DVI1x mini-DisplayPort 1.2
Power Connectors
2x 6-pin
2x 8-pin
Graphics Features
DirectX
11.2 (11_0)
12 (11_1)
OpenGL
4.4
4.6
OpenCL
1.2
1.2
Vulkan
N/A
1.2
Shader Model
5.0
5.1
▲ Specs Compare
Data sourced from official specifications and benchmark tests.