NVIDIA H100 PCIe 80 GB vs NVIDIA L20
GPU · Specs Compare
Graphics Card
Release Date
Oct 2022
Nov 2023
Generation
Server Hopper
Server Ada
Type
AI GPU
Desktop
Bus Interface
PCIe 5.0 x16
PCIe 4.0 x16
Clock Speeds
Base Clock
1095 MHz
1440 MHz
Boost Clock
1755 MHz
2520 MHz
Memory Clock
1593 MHz
2250 MHz
Memory
Memory Size
80GB
48GB
Memory Type
HBM2e
GDDR6
Memory Bus
5120bit
384bit
Bandwidth
2.04TB/s
864.0GB/s
Render Config
SM Count
114
92
Shading Units
14592
11776
TMUs
456
368
ROPs
24
128
Tensor Cores
456
368
L1 Cache
256 KB (per SM)
128 KB (per SM)
L2 Cache
50 MB
96 MB
RT Cores
—
92
Theoretical Performance
Pixel Rate
42.12 GPixel/s
322.6 GPixel/s
Texture Rate
800.3 GTexel/s
927.4 GTexel/s
FP16 (half)
204.9 TFLOPS
59.35 TFLOPS
FP32 (float)
51.22 TFLOPS
59.35 TFLOPS
FP64 (double)
25.61 TFLOPS
927.4 GFLOPS
Graphics Processor
GPU Name
GH100
AD102
Architecture
Hopper
Ada Lovelace
Foundry
TSMC
TSMC
Process Size
5 nm
5 nm
Transistors
80 billion
76.3 billion
Die Size
814 mm²
609 mm²
GPU Variant
—
AD102
Board Design
TDP
350W
275W
Suggested PSU
750 W
600 W
Outputs
No outputs
4x DisplayPort 1.4a
Power Connectors
1x 16-pin
1x 16-pin
Graphics Features
DirectX
N/A
12 Ultimate (12_2)
OpenGL
N/A
4.6
OpenCL
3.0
3.0
Vulkan
N/A
1.4
CUDA
9.0
8.9
Shader Model
N/A
6.9
▲ Specs Compare
Data sourced from official specifications and benchmark tests.