NVIDIA Tesla K20s vs NVIDIA GeForce GTX 950
GPU · Specs Compare
Graphics Card
Release Date
Feb 2013
Aug 2015
Generation
Tesla
GeForce 900
Type
Professional
Desktop
Bus Interface
PCIe 2.0 x16
PCIe 3.0 x16
Clock Speeds
Memory Clock
1300 MHz
1653 MHz
Base Clock
—
1024 MHz
Boost Clock
—
1188 MHz
Memory
Memory Size
5GB
2GB
Memory Type
GDDR5
GDDR5
Memory Bus
320bit
128bit
Bandwidth
208.0GB/s
105.8GB/s
Render Config
Shading Units
2496
768
TMUs
208
48
ROPs
40
32
L1 Cache
16 KB (per SMX)
48 KB (per SMM)
L2 Cache
1280 KB
1024 KB
Theoretical Performance
Pixel Rate
29.90 GPixel/s
38.02 GPixel/s
Texture Rate
119.6 GTexel/s
57.02 GTexel/s
FP32 (float)
2.870 TFLOPS
1.825 TFLOPS
FP64 (double)
956.8 GFLOPS
57.02 GFLOPS
Graphics Processor
GPU Name
GK110
GM206
Architecture
Kepler
Maxwell 2.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
7.08 billion
2.94 billion
Die Size
561 mm²
228 mm²
GPU Variant
—
GM206-250-A1
Board Design
TDP
225W
90W
Suggested PSU
550 W
250 W
Outputs
No outputs
1x DVI1x HDMI 2.03x DisplayPort 1.4a
Power Connectors
—
1x 6-pin
Graphics Features
DirectX
12 (11_0)
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
Benchmark
3DMark Time Spy
—
1,903
3DMark Time Spy Extreme
—
396
▲ Specs Compare
Data sourced from official specifications and benchmark tests.