AMD Radeon R9 280X vs NVIDIA Tesla K40s
GPU · Specs Compare
Graphics Card
Release Date
Oct 2013
Nov 2013
Generation
Volcanic Islands
Tesla Kepler
Type
Desktop
Professional
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
850 MHz
706 MHz
Boost Clock
1000 MHz
706 MHz
Memory Clock
1500 MHz
1502 MHz
Memory
Memory Size
3GB
12GB
Memory Type
GDDR5
GDDR5
Memory Bus
384bit
384bit
Bandwidth
288.0GB/s
288.4GB/s
Render Config
Compute Units
32
—
Shading Units
2048
2880
TMUs
128
240
ROPs
32
48
L1 Cache
16 KB (per CU)
16 KB (per SMX)
L2 Cache
768 KB
1536 KB
Theoretical Performance
Pixel Rate
32.00 GPixel/s
42.36 GPixel/s
Texture Rate
128.0 GTexel/s
169.4 GTexel/s
FP32 (float)
4.096 TFLOPS
4.067 TFLOPS
FP64 (double)
1024 GFLOPS
1355.5 GFLOPS
Graphics Processor
GPU Name
Tahiti
GK110B
GPU Variant
Tahiti XTL(215-0821065)
—
Architecture
GCN 1.0
Kepler
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
4.313 billion
7.08 billion
Die Size
352 mm²
561 mm²
Board Design
TDP
250W
245W
Suggested PSU
600 W
550 W
Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
No outputs
Power Connectors
1x 6-pin + 1x 8-pin
—
Graphics Features
DirectX
12 (11_1)
12 (11_1)
OpenGL
4.6
4.6
OpenCL
1.2
3.0
Vulkan
1.2
1.2.175
Shader Model
5.1
6.5 (5.1)
CUDA
—
3.5
▲ Specs Compare
Data sourced from official specifications and benchmark tests.