NVIDIA H800 PCIe 80 GB vs NVIDIA GeForce RTX 5090 D V2
GPU Specs Compare
Graphics Card
Release Date
Mar 2023
Aug 2025
Generation
Tesla Hopper
GeForce 50
Type
AI GPU
Desktop
Bus Interface
PCIe 5.0 x16
PCIe 5.0 x16
Clock Speeds
Base Clock
1095 MHz
2017 MHz
Boost Clock
1755 MHz
2407 MHz
Memory Clock
1593 MHz
1750 MHz
Memory
Memory Size
80GB
24GB
Memory Type
HBM2e
GDDR7
Memory Bus
5120bit
384bit
Bandwidth
2039GB/s
1.34TB/s
Render Config
SM Count
114
170
Shading Units
14592
21760
TMUs
456
680
ROPs
24
176
Tensor Cores
456
680
L1 Cache
256 KB (per SM)
128 KB (per SM)
L2 Cache
50 MB
96 MB
RT Cores
-
170
Theoretical Performance
Pixel Rate
42.12 GPixel/s
423.6 GPixel/s
Texture Rate
800.3 GTexel/s
1636.8 GTexel/s
FP16 (half)
204.9 TFLOPS
104.8 TFLOPS
FP32 (float)
51.22 TFLOPS
104.8 TFLOPS
FP64 (double)
25.61 TFLOPS
1.637 TFLOPS
Graphics Processor
GPU Name
GH100
GB202
Architecture
Hopper
Blackwell 2.0
Foundry
TSMC
TSMC
Process Size
4 nm
5 nm
Transistors
80 billion
92.2 billion
Die Size
814 mm²
750 mm²
GPU Variant
-
GB202-240-K1-A1
Board Design
TDP
350W
575W
Suggested PSU
750 W
950 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
-
46,950
3DMark Time Spy Extreme
-
25,185