AMD Radeon R9 280 vs AMD Radeon R7 260
GPU Specs Compare
Graphics Card
Release Date
Mar 2014
Dec 2013
Generation
Volcanic Islands
Volcanic Islands
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
827 MHz
-
Boost Clock
933 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
29.86 GPixel/s
16.00 GPixel/s
Texture Rate
104.5 GTexel/s
48.00 GTexel/s
FP32 (float)
3.344 TFLOPS
1.536 TFLOPS
FP64 (double)
836.0 GFLOPS
96.00 GFLOPS
Graphics Processor
GPU Name
Tahiti
Bonaire
GPU Variant
Tahiti PRO3(215-0821330)
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
200W
95W
Suggested PSU
550 W
250 W
Outputs
1x DVI2x HDMI 1.4a1x DisplayPort 1.2
1x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
1x 6-pin + 1x 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