AMD Radeon R9 280X2 vs AMD Radeon HD 7950 Boost
GPU Specs Compare
Graphics Card
Release Date
Unknown
Jun 2012
Generation
Volcanic Islands
Southern Islands
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
950 MHz
850 MHz
Boost Clock
1000 MHz
925 MHz
Memory Clock
1500 MHz
1250 MHz
Memory
Memory Size
3GB
3GB
Memory Type
GDDR5
GDDR5
Memory Bus
384bit
384bit
Bandwidth
288.0GB/s
240.0GB/s
Render Config
Compute Units
32
28
Shading Units
2048
1792
TMUs
128
112
ROPs
32
32
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
768 KB
768 KB
Theoretical Performance
Pixel Rate
32.00 GPixel/s
29.60 GPixel/s
Texture Rate
128.0 GTexel/s
103.6 GTexel/s
FP32 (float)
4.096 TFLOPS
3.315 TFLOPS
FP64 (double)
1024 GFLOPS
828.8 GFLOPS
Graphics Processor
GPU Name
Tahiti
Tahiti
GPU Variant
Tahiti XTL(215-0821065)
Tahiti PRO2(215-0821282)
Architecture
GCN 1.0
GCN 1.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
4.313 billion
4.313 billion
Die Size
352 mm²
352 mm²
Board Design
TDP
375W
200W
Suggested PSU
750 W
550 W
Outputs
6x mini-DisplayPort 1.2
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
Power Connectors
3x 8-pin
2x 6-pin
Graphics Features
DirectX
12 (11_1)
12 (11_1)
OpenGL
4.6
4.6
OpenCL
1.2
1.2
Vulkan
1.2
1.2
Shader Model
5.1
5.1