NVIDIA Tesla K20Xm vs AMD Radeon R9 280
GPU · Specs Compare
Graphics Card
Release Date
Nov 2012
Mar 2014
Generation
Tesla
Volcanic Islands
Type
Professional
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Memory Clock
1300 MHz
1250 MHz
Base Clock
—
827 MHz
Boost Clock
—
933 MHz
Memory
Memory Size
6GB
3GB
Memory Type
GDDR5
GDDR5
Memory Bus
384bit
384bit
Bandwidth
249.6GB/s
240.0GB/s
Render Config
Shading Units
2688
1792
TMUs
224
112
ROPs
48
32
L1 Cache
16 KB (per SMX)
16 KB (per CU)
L2 Cache
1536 KB
768 KB
Compute Units
—
28
Theoretical Performance
Pixel Rate
40.99 GPixel/s
29.86 GPixel/s
Texture Rate
164.0 GTexel/s
104.5 GTexel/s
FP32 (float)
3.935 TFLOPS
3.344 TFLOPS
FP64 (double)
1312 GFLOPS
836.0 GFLOPS
Graphics Processor
GPU Name
GK110
Tahiti
Architecture
Kepler
GCN 1.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
7.08 billion
4.313 billion
Die Size
561 mm²
352 mm²
GPU Variant
—
Tahiti PRO3(215-0821330)
Board Design
TDP
235W
200W
Suggested PSU
550 W
550 W
Outputs
No outputs
1x DVI2x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
—
1x 6-pin + 1x 8-pin
Graphics Features
DirectX
12 (11_0)
12 (11_1)
OpenGL
4.6
4.6
OpenCL
3.0
1.2
Vulkan
1.1
1.2
CUDA
3.5
—
Shader Model
5.1
5.1
▲ Specs Compare
Data sourced from official specifications and benchmark tests.