AMD Radeon Sky 900 vs AMD Radeon R7 260
GPU Specs Compare
Graphics Card
Release Date
Mar 2013
Dec 2013
Generation
Radeon Sky
Volcanic Islands
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
825 MHz
-
Boost Clock
950 MHz
-
Memory Clock
1250 MHz
1500 MHz
Memory
Memory Size
3GB
2GB
Memory Type
GDDR5
GDDR5
Memory Bus
384bit
128bit
Bandwidth
240.0GB/s
96.00GB/s
Render Config
Compute Units
28
12
Shading Units
1792
768
TMUs
112
48
ROPs
32
16
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
768 KB
256 KB
Theoretical Performance
Pixel Rate
30.40 GPixel/s
16.00 GPixel/s
Texture Rate
106.4 GTexel/s
48.00 GTexel/s
FP32 (float)
3.405 TFLOPS
1.536 TFLOPS
FP64 (double)
851.2 GFLOPS
96.00 GFLOPS
Graphics Processor
GPU Name
Tahiti
Bonaire
GPU Variant
Orthrus
Bonaire PRO
Architecture
GCN 1.0
GCN 2.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
4.313 billion
2.08 billion
Die Size
352 mm²
160 mm²
Board Design
TDP
300W
95W
Suggested PSU
700 W
250 W
Outputs
1x DVI1x mini-DisplayPort 1.2
1x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
2x 8-pin
1x 6-pin
Graphics Features
DirectX
12 (11_1)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
1.2
2.0
Vulkan
1.2
1.2
Shader Model
5.1
6.3