NVIDIA H100 PCIe 80 GB vs NVIDIA GeForce RTX 5080
GPU · Specs Compare
Graphics Card
Release Date
Oct 2022
Jan 2025
Generation
Server Hopper
GeForce 50
Type
AI GPU
Desktop
Bus Interface
PCIe 5.0 x16
PCIe 5.0 x16
Clock Speeds
Base Clock
1095 MHz
2295 MHz
Boost Clock
1755 MHz
2617 MHz
Memory Clock
1593 MHz
1875 MHz
Memory
Memory Size
80GB
16GB
Memory Type
HBM2e
GDDR7
Memory Bus
5120bit
256bit
Bandwidth
2.04TB/s
960.0GB/s
Render Config
SM Count
114
84
Shading Units
14592
10752
TMUs
456
336
ROPs
24
112
Tensor Cores
456
336
L1 Cache
256 KB (per SM)
128 KB (per SM)
L2 Cache
50 MB
64 MB
RT Cores
—
84
Theoretical Performance
Pixel Rate
42.12 GPixel/s
293.1 GPixel/s
Texture Rate
800.3 GTexel/s
879.3 GTexel/s
FP16 (half)
204.9 TFLOPS
56.28 TFLOPS
FP32 (float)
51.22 TFLOPS
56.28 TFLOPS
FP64 (double)
25.61 TFLOPS
879.3 GFLOPS
Graphics Processor
GPU Name
GH100
GB203
Architecture
Hopper
Blackwell 2.0
Foundry
TSMC
TSMC
Process Size
5 nm
5 nm
Transistors
80 billion
45.6 billion
Die Size
814 mm²
378 mm²
GPU Variant
—
GB203-400-A1
Board Design
TDP
350W
360W
Suggested PSU
750 W
750 W
Outputs
No outputs
1x HDMI 2.1b3x DisplayPort 2.1b
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
12.0
Shader Model
N/A
6.8
Benchmark
3DMark Time Spy
—
33,116
3DMark Time Spy Extreme
—
16,627
3DMark Speed Way
—
9,296
▲ Specs Compare
Data sourced from official specifications and benchmark tests.