NVIDIA A100 SXM4 40 GB vs NVIDIA Tesla K20c
GPU · Specs Compare
Graphics Card
Release Date
May 2020
Nov 2012
Generation
Tesla Ampere
Tesla
Type
AI GPU
Professional
Bus Interface
PCIe 4.0 x16
PCIe 2.0 x16
Clock Speeds
Base Clock
1095 MHz
—
Boost Clock
1410 MHz
—
Memory Clock
1215 MHz
1300 MHz
Memory
Memory Size
40GB
5GB
Memory Type
HBM2e
GDDR5
Memory Bus
5120bit
320bit
Bandwidth
1555GB/s
208.0GB/s
Render Config
SM Count
108
—
Shading Units
6912
2496
TMUs
432
208
ROPs
160
40
Tensor Cores
432
—
L1 Cache
192 KB (per SM)
16 KB (per SMX)
L2 Cache
40 MB
1280 KB
Theoretical Performance
Pixel Rate
225.6 GPixel/s
36.71 GPixel/s
Texture Rate
609.1 GTexel/s
146.8 GTexel/s
FP16 (half)
77.97 TFLOPS
—
FP32 (float)
19.49 TFLOPS
3.524 TFLOPS
FP64 (double)
9.746 TFLOPS
1175 GFLOPS
Graphics Processor
GPU Name
GA100
GK110
Architecture
Ampere
Kepler
Foundry
TSMC
TSMC
Process Size
7 nm
28 nm
Transistors
54.2 billion
7.08 billion
Die Size
826 mm²
561 mm²
GPU Variant
—
GK110-885-KA-A1
Board Design
TDP
400W
225W
Suggested PSU
800 W
550 W
Outputs
No outputs
No outputs
Power Connectors
None
1x 6-pin + 1x 8-pin
Graphics Features
DirectX
N/A
12 (11_0)
OpenGL
N/A
4.6
OpenCL
3.0
3.0
Vulkan
N/A
1.1
CUDA
8.0
3.5
Shader Model
N/A
5.1
Benchmark
Blender
2,186
—
OctaneBench
—
55
▲ Specs Compare
Data sourced from official specifications and benchmark tests.