NVIDIA Tesla K40st vs AMD Radeon R9 390X
GPU Specs Compare
Graphics Card
Release Date
Nov 2013
Jun 2015
Generation
Tesla
Pirate Islands
Type
Professional
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Memory Clock
1502 MHz
1500 MHz
Memory
Memory Size
12GB
8GB
Memory Type
GDDR5
GDDR5
Memory Bus
384bit
512bit
Bandwidth
288.4GB/s
384.0GB/s
Render Config
Shading Units
2880
2816
TMUs
240
176
ROPs
48
64
L1 Cache
16 KB (per SMX)
16 KB (per CU)
L2 Cache
1536 KB
1024 KB
Compute Units
-
44
Theoretical Performance
Pixel Rate
34.50 GPixel/s
67.20 GPixel/s
Texture Rate
138.0 GTexel/s
184.8 GTexel/s
FP32 (float)
3.312 TFLOPS
5.914 TFLOPS
FP64 (double)
1104 GFLOPS
739.2 GFLOPS
Graphics Processor
GPU Name
GK110B
Grenada
Architecture
Kepler
GCN 2.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
7.08 billion
6.2 billion
Die Size
561 mm²
438 mm²
GPU Variant
-
Grenada XT(215-0880004)
Board Design
TDP
245W
275W
Suggested PSU
550 W
600 W
Outputs
No outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
-
1x 6-pin + 1x 8-pin
Graphics Features
DirectX
12 (11_1)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
3.0
2.0
Vulkan
1.1
1.2
CUDA
3.5
-
Shader Model
5.1
6.3