NVIDIA Tesla K40st vs NVIDIA GeForce GTX 980
GPU Specs Compare
Graphics Card
Release Date
Nov 2013
Sep 2014
Generation
Tesla
GeForce 900
Type
Professional
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Memory Clock
1502 MHz
1753 MHz
Base Clock
-
1127 MHz
Boost Clock
-
1216 MHz
Memory
Memory Size
12GB
4GB
Memory Type
GDDR5
GDDR5
Memory Bus
384bit
256bit
Bandwidth
288.4GB/s
224.4GB/s
Render Config
Shading Units
2880
2048
TMUs
240
128
ROPs
48
64
L1 Cache
16 KB (per SMX)
48 KB (per SMM)
L2 Cache
1536 KB
2 MB
Theoretical Performance
Pixel Rate
34.50 GPixel/s
77.82 GPixel/s
Texture Rate
138.0 GTexel/s
155.6 GTexel/s
FP32 (float)
3.312 TFLOPS
4.981 TFLOPS
FP64 (double)
1104 GFLOPS
155.6 GFLOPS
Graphics Processor
GPU Name
GK110B
GM204
Architecture
Kepler
Maxwell 2.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
7.08 billion
5.2 billion
Die Size
561 mm²
398 mm²
GPU Variant
-
GM204-400-A1
Board Design
TDP
245W
165W
Suggested PSU
550 W
450 W
Outputs
No outputs
1x DVI1x HDMI 2.03x DisplayPort 1.4a
Power Connectors
-
2x 6-pin
Graphics Features
DirectX
12 (11_1)
12 (12_1)
OpenGL
4.6
4.6
OpenCL
3.0
3.0
Vulkan
1.1
1.3
CUDA
3.5
5.2
Shader Model
5.1
6.4