NVIDIA Tesla K20c vs NVIDIA RTX A6000
We compared two Professional market GPUs: 5GB VRAM Tesla K20c and 48GB VRAM RTX A6000 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA Tesla K20c 's Advantages
Lower TDP (225W vs 300W)
NVIDIA RTX A6000 's Advantages
Released 7 years and 11 months late
Boost Clock1800MHz
More VRAM (48GB vs 5GB)
Larger VRAM bandwidth (768.0GB/s vs 208.0GB/s)
8256 additional rendering cores
Score
Benchmark
FP32 (float)
Tesla K20c
3.524 TFLOPS
RTX A6000
+998%
38.71 TFLOPS
OctaneBench
Tesla K20c
55
RTX A6000
+990%
600
Graphics Card
Nov 2012
Release Date
Oct 2020
Tesla
Generation
Quadro Ampere
Professional
Type
Professional
PCIe 2.0 x16
Bus Interface
PCIe 4.0 x16
Clock Speeds
-
Base Clock
1410 MHz
-
Boost Clock
1800 MHz
1300 MHz
Memory Clock
2000 MHz
Memory
5GB
Memory Size
48GB
GDDR5
Memory Type
GDDR6
320bit
Memory Bus
384bit
208.0GB/s
Bandwidth
768.0GB/s
Render Config
-
-
-
-
SM Count
84
2496
Shading Units
10752
208
TMUs
336
40
ROPs
112
-
Tensor Cores
336
-
RT Cores
84
16 KB (per SMX)
L1 Cache
128 KB (per SM)
1280 KB
L2 Cache
6 MB
-
-
-
Theoretical Performance
36.71 GPixel/s
Pixel Rate
201.6 GPixel/s
146.8 GTexel/s
Texture Rate
604.8 GTexel/s
-
FP16 (half)
38.71 TFLOPS
3.524 TFLOPS
FP32 (float)
38.71 TFLOPS
1175 GFLOPS
FP64 (double)
604.8 GFLOPS
Board Design
225W
TDP
300W
550 W
Suggested PSU
700 W
No outputs
Outputs
4x DisplayPort 1.4a
1x 6-pin + 1x 8-pin
Power Connectors
8-pin EPS
Graphics Processor
GK110
GPU Name
GA102
GK110-885-KA-A1
GPU Variant
-
Kepler
Architecture
Ampere
TSMC
Foundry
Samsung
28 nm
Process Size
8 nm
7.08 billion
Transistors
28.3 billion
561 mm²
Die Size
628 mm²
Graphics Features
12 (11_0)
DirectX
12 Ultimate (12_2)
4.6
OpenGL
4.6
3.0
OpenCL
3.0
1.1
Vulkan
1.3
3.5
CUDA
8.6
5.1
Shader Model
6.7
