NVIDIA A800 SXM4 80 GB vs NVIDIA H800 SXM5

Comparison of NVIDIA A800 SXM4 80 GB with 80 GB HBM2e and 6,912 cores vs NVIDIA H800 SXM5 with 80 GB HBM3 and 16,896 cores.

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Performance Rating

A100 A100
H200 H200
MI325X MI325X

NVIDIA A800 SXM4 80 GB

25.9

NVIDIA A800 SXM4 80 GB

25.9
RX 7900 XTX RX 7900 XTX
MI250 MI250
Instinct MI300X Instinct MI300X

NVIDIA H800 SXM5

NVIDIA H800 SXM5

Contents:

Memory ML Performance Compute Power Architecture & Compatibility ML Software Support Clocks & Performance Power Consumption Rendering Additional

Memory

Memory Size

🔥 80 ГБ
80 GB

Memory Type

HBM2e HBM3

Memory Bandwidth

🔥 2.04 TB/s
3.36 TB/s

Memory Bus Width

5,120 бит 5,120 бит

ML Performance

FP16 (Half Precision)

🔥 77.97 TFLOPS
237.2 TFLOPS

BF16 (Brain Float)

🔥 311.84 TFLOPS
No

TF32 (TensorFloat)

🔥 155.92
No

Compute Power

FP32 (Single Precision)

🔥 19.49 TFLOPS
59.3 TFLOPS

FP64 (Double Precision)

🔥 9.746 TFLOPS
29.65 TFLOPS

CUDA Cores

🔥 6,912
16,896

RT Cores

No No

Architecture & Compatibility

GPU Architecture

Ampere Hopper

SM (Streaming Multiprocessor)

🔥 108
132

PCIe Version

PCIe 4.0 x16 PCIe 5.0 x16

ML Software Support

CUDA Version

8.0
🔥 9.0

Clocks & Performance

Base Clock

🔥 +5% 1,155
1,095

Boost Clock

🔥 1,410
1,755

Memory Clock

🔥 +21% 1,593
1,313

Power Consumption

TDP/TGP

🔥 -43% 400 W
700 W

Recommended PSU

🔥 -27% 800 W
1100 W

Power Connector

None 8-pin EPS

Rendering

Texture Units (TMU)

🔥 432
528

ROP

No No

L2 Cache

🔥 40 MB
50 MB

Additional

Slots

🔥 SXM Module
SXM Module

Release Date

Aug. 11, 2022 March 21, 2023

Display Outputs

No outputs
No outputs

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