NVIDIA A100X vs NVIDIA B300

Comparison NVIDIA A100X with 80 GB HBM2e and 6,912 cores vs NVIDIA B300 with 144 GB HBM3e and 18,944 cores.

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Performance Rating

NVIDIA B300 outperforms NVIDIA A100X by 174.65% in the overall GPU ARK performance rating

A100 A100
H200 H200
MI325X MI325X

NVIDIA A100X

26.2

NVIDIA A100X

26.2
RX 7900 XTX RX 7900 XTX
MI250 MI250
Instinct MI300X Instinct MI300X

NVIDIA B300

71.9

NVIDIA B300

71.9

Expert Comparison

NVIDIA B300 значительно превосходит NVIDIA A100X по количеству ядер, объему памяти и пропускной способности. B300 предназначен для обработки больших объемов данных и требует гораздо больше энергии (1400 Вт против 300 Вт). A100X более экономичный вариант с достаточными характеристиками для многих задач машинного обучения и визуализации, но при этом он имеет значительно меньшую производительность в сравнении с B300.

Contents:

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

Memory

Memory Size

80 GB
🔥 +80% 144 ГБ ×2 (288 ГБ)

Memory Type

HBM2e HBM3e

Memory Bandwidth

2.04 TB/s
🔥 +101% 4.10 TB/s ×2 (8.2 TB/s)

Memory Bus Width

5,120 бит 4,096 бит ×2 (8192 бит)

ML Performance

FP16 (Half Precision)

🔥 +6,365% 79.63 TFLOPS
1.2318 TFLOPS

BF16 (Brain Float)

No No

TF32 (TensorFloat)

No No

Compute Power

FP32 (Single Precision)

19.91 TFLOPS
🔥 +287% 76.99 TFLOPS

FP64 (Double Precision)

🔥 +727% 9.953 TFLOPS
1.2029 TFLOPS

CUDA Cores

6,912
🔥 +174% 18,944 ×2 (37888)

RT Cores

No No

Architecture & Compatibility

GPU Architecture

Ampere Blackwell Ultra

SM (Streaming Multiprocessor)

108
🔥 +37% 148

PCIe Version

PCIe 4.0 x8 PCIe 5.0 x16

ML Software Support

CUDA Version

8.0
🔥 10.3

CUDA Toolkit (first supported)

v11 v12

CUDA Toolkit status

Supported Supported

Clocks & Performance

Base Clock

795
🔥 +109% 1,665

Boost Clock

1,440
🔥 +41% 2,032

Memory Clock

1,593
🔥 +26% 2,000

Power Consumption

Recommended PSU

🔥 -61% 700 W
1800 W

Power Connector

1x 16-pin No

TDP/TGP

🔥 -79% 300 W
1400 W

Rendering

Texture Units (TMU)

432
🔥 +37% 592 ×2 (1184)

ROP

No No

L2 Cache

🔥 +60% 80 MB
50 MB

Additional

Slots

Dual-slot
🔥 SXM Module

Release Date

June 28, 2021 Sept. 11, 2025

Display Outputs

No outputs
No outputs

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