NVIDIA A40 PCIe vs NVIDIA A800 SXM4 80 GB

Comparison of NVIDIA A40 PCIe with 48 GB GDDR6 and 10,752 cores vs NVIDIA A800 SXM4 80 GB with 80 GB HBM2e and 6,912 cores.

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Performance Rating

H200 H200
MI325X MI325X
A100 A100

NVIDIA A40 PCIe

NVIDIA A40 PCIe

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

NVIDIA A800 SXM4 80 GB

NVIDIA A800 SXM4 80 GB

Contents:

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

Memory

Memory Size

48 GB 80 GB

Memory Type

GDDR6 HBM2e

Memory Bandwidth

695.8 GB/s 2.04 TB/s

Memory Bus Width

384 бит 5,120 бит

ML Performance

FP16 (Half Precision)

37.42 TFLOPS 77.97 TFLOPS

BF16 (Brain Float)

No 311.84 TFLOPS

TF32 (TensorFloat)

No 155.92

Compute Power

FP32 (Single Precision)

37.42 TFLOPS 19.49 TFLOPS

FP64 (Double Precision)

0.5846 TFLOPS 9.746 TFLOPS

CUDA Cores

10,752 6,912

RT Cores

84 No

Architecture & Compatibility

GPU Architecture

Ampere Ampere

SM (Streaming Multiprocessor)

84 108

PCIe Version

PCIe 4.0 x16 PCIe 4.0 x16

ML Software Support

CUDA Version

🔥 8.6
8.0

Clocks & Performance

Base Clock

1,305 1,155

Boost Clock

1,740 1,410

Memory Clock

1,812 1,593

Power Consumption

TDP/TGP

🔥 -25% 300 W
400 W

Recommended PSU

🔥 -12% 700 W
800 W

Power Connector

8-pin EPS None

Rendering

Texture Units (TMU)

336 432

ROP

84 No

L2 Cache

6 MB 40 MB

Additional

Slots

Dual-slot SXM Module

Release Date

Oct. 5, 2020 Aug. 11, 2022

Display Outputs

3x DisplayPort 1.4a
No outputs

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