NVIDIA GeForce GTX 980 vs NVIDIA Tesla K20m
GPU · Specs Compare
Graphics Card
Release Date
Sep 2014
Jan 2013
Generation
GeForce 900
Tesla
Type
Desktop
Professional
Bus Interface
PCIe 3.0 x16
PCIe 2.0 x16
Clock Speeds
Base Clock
1127 MHz
—
Boost Clock
1216 MHz
—
Memory Clock
1753 MHz
1300 MHz
Memory
Memory Size
4GB
5GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
320bit
Bandwidth
224.4GB/s
208.0GB/s
Render Config
Shading Units
2048
2496
TMUs
128
208
ROPs
64
40
L1 Cache
48 KB (per SMM)
16 KB (per SMX)
L2 Cache
2 MB
1280 KB
Theoretical Performance
Pixel Rate
77.82 GPixel/s
36.71 GPixel/s
Texture Rate
155.6 GTexel/s
146.8 GTexel/s
FP32 (float)
4.981 TFLOPS
3.524 TFLOPS
FP64 (double)
155.6 GFLOPS
1175 GFLOPS
Graphics Processor
GPU Name
GM204
GK110
GPU Variant
GM204-400-A1
—
Architecture
Maxwell 2.0
Kepler
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
5.2 billion
7.08 billion
Die Size
398 mm²
561 mm²
Board Design
TDP
165W
225W
Suggested PSU
450 W
550 W
Outputs
1x DVI1x HDMI 2.03x DisplayPort 1.4a
No outputs
Power Connectors
2x 6-pin
1x 6-pin + 1x 8-pin
Graphics Features
DirectX
12 (12_1)
12 (11_0)
OpenGL
4.6
4.6
OpenCL
3.0
3.0
Vulkan
1.3
1.1
CUDA
5.2
3.5
Shader Model
6.4
5.1
▲ Specs Compare
Data sourced from official specifications and benchmark tests.