NVIDIA L40 vs NVIDIA Tesla K20X
We compared two Professional market GPUs: 48GB VRAM L40 and 6GB VRAM Tesla K20X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA L40 's Advantages
Released 9 years and 11 months late
Boost Clock2490MHz
More VRAM (48GB vs 6GB)
Larger VRAM bandwidth (864.0GB/s vs 249.6GB/s)
15488 additional rendering cores
NVIDIA Tesla K20X 's Advantages
Lower TDP (235W vs 300W)
Score
Benchmark
FP32 (float)
L40
+2200%
90.52 TFLOPS
Tesla K20X
3.935 TFLOPS
Graphics Card
Oct 2022
Release Date
Nov 2012
Tesla Ada
Generation
Tesla
Professional
Type
Professional
PCIe 4.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
735 MHz
Base Clock
-
2490 MHz
Boost Clock
-
2250 MHz
Memory Clock
1300 MHz
Memory
48GB
Memory Size
6GB
GDDR6
Memory Type
GDDR5
384bit
Memory Bus
384bit
864.0GB/s
Bandwidth
249.6GB/s
Render Config
-
-
-
142
SM Count
-
18176
Shading Units
2688
568
TMUs
224
192
ROPs
48
568
Tensor Cores
-
142
RT Cores
-
128 KB (per SM)
L1 Cache
16 KB (per SMX)
96 MB
L2 Cache
1536 KB
-
-
-
Theoretical Performance
478.1 GPixel/s
Pixel Rate
40.99 GPixel/s
1414 GTexel/s
Texture Rate
164.0 GTexel/s
90.52 TFLOPS
FP16 (half)
-
90.52 TFLOPS
FP32 (float)
3.935 TFLOPS
1414 GFLOPS
FP64 (double)
1312 GFLOPS
Board Design
300W
TDP
235W
700 W
Suggested PSU
550 W
4x DisplayPort 1.4a
Outputs
No outputs
1x 16-pin
Power Connectors
1x 6-pin + 1x 8-pin
Graphics Processor
AD102
GPU Name
GK110
AD102-895-A1
GPU Variant
-
Ada Lovelace
Architecture
Kepler
TSMC
Foundry
TSMC
4 nm
Process Size
28 nm
76.3 billion
Transistors
7.08 billion
608 mm²
Die Size
561 mm²
Graphics Features
12 Ultimate (12_2)
DirectX
12 (11_0)
4.6
OpenGL
4.6
3.0
OpenCL
3.0
1.3
Vulkan
1.1
8.9
CUDA
3.5
6.6
Shader Model
5.1
