AMD Radeon R9 285X vs NVIDIA Tesla K20m
GPU · Specs Compare
Graphics Card
Release Date
Unknown
Jan 2013
Generation
Volcanic Islands
Tesla
Type
Desktop
Professional
Bus Interface
PCIe 3.0 x16
PCIe 2.0 x16
Clock Speeds
Memory Clock
1375 MHz
1300 MHz
Memory
Memory Size
3GB
5GB
Memory Type
GDDR5
GDDR5
Memory Bus
384bit
320bit
Bandwidth
264.0GB/s
208.0GB/s
Render Config
Compute Units
32
—
Shading Units
2048
2496
TMUs
128
208
ROPs
32
40
L1 Cache
16 KB (per CU)
16 KB (per SMX)
L2 Cache
768 KB
1280 KB
Theoretical Performance
Pixel Rate
32.06 GPixel/s
36.71 GPixel/s
Texture Rate
128.3 GTexel/s
146.8 GTexel/s
FP32 (float)
4.104 TFLOPS
3.524 TFLOPS
FP64 (double)
—
1175 GFLOPS
Graphics Processor
GPU Name
Tonga
GK110
GPU Variant
Tonga XT(215-0851313)
—
Architecture
GCN 3.0
Kepler
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
5 billion
7.08 billion
Die Size
366 mm²
561 mm²
Board Design
TDP
200W
225W
Suggested PSU
550 W
550 W
Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
No outputs
Power Connectors
1x 6-pin + 1x 8-pin
1x 6-pin + 1x 8-pin
Graphics Features
DirectX
12 (12_0)
12 (11_0)
OpenGL
4.6
4.6
OpenCL
2.0
3.0
Vulkan
1.2
1.1
Shader Model
6.3
5.1
CUDA
—
3.5
▲ Specs Compare
Data sourced from official specifications and benchmark tests.