NVIDIA Tesla K20c vs NVIDIA A30 PCIe
GPU · Specs Compare
Graphics Card
Release Date
Nov 2012
Apr 2021
Generation
Tesla
Tesla Ampere
Type
Professional
Desktop
Bus Interface
PCIe 2.0 x16
PCIe 4.0 x16
Clock Speeds
Memory Clock
1300 MHz
1215 MHz
Base Clock
—
930 MHz
Boost Clock
—
1440 MHz
Memory
Memory Size
5GB
24GB
Memory Type
GDDR5
HBM2e
Memory Bus
320bit
3072bit
Bandwidth
208.0GB/s
933.1GB/s
Render Config
Shading Units
2496
3584
TMUs
208
224
ROPs
40
96
L1 Cache
16 KB (per SMX)
192 KB (per SM)
L2 Cache
1280 KB
24 MB
SM Count
—
56
Tensor Cores
—
224
Theoretical Performance
Pixel Rate
36.71 GPixel/s
138.2 GPixel/s
Texture Rate
146.8 GTexel/s
322.6 GTexel/s
FP32 (float)
3.524 TFLOPS
10.32 TFLOPS
FP64 (double)
1175 GFLOPS
5.161 TFLOPS
FP16 (half)
—
10.32 TFLOPS
Graphics Processor
GPU Name
GK110
GA100
GPU Variant
GK110-885-KA-A1
—
Architecture
Kepler
Ampere
Foundry
TSMC
TSMC
Process Size
28 nm
7 nm
Transistors
7.08 billion
54.2 billion
Die Size
561 mm²
826 mm²
Board Design
TDP
225W
165W
Suggested PSU
550 W
450 W
Outputs
No outputs
No outputs
Power Connectors
1x 6-pin + 1x 8-pin
8-pin EPS
Graphics Features
DirectX
12 (11_0)
N/A
OpenGL
4.6
N/A
OpenCL
3.0
3.0
Vulkan
1.1
N/A
CUDA
3.5
8.0
Shader Model
5.1
N/A
Benchmark
OctaneBench
55
—
Blender
—
2,036
▲ Specs Compare
Data sourced from official specifications and benchmark tests.