NVIDIA B300 vs NVIDIA RTX A40-24Q

Comparison of NVIDIA B300 with 144 GB HBM3e and 18,944 cores vs NVIDIA RTX A40-24Q with 24 GB GDDR6 and 10,752 cores.

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Performance Rating

NVIDIA B300 outperforms NVIDIA RTX A40-24Q by 273.47% in the overall GPU ARK performance rating

A100 A100
H200 H200
MI325X MI325X

NVIDIA B300

71.9

NVIDIA B300

71.9
RX 7900 XTX RX 7900 XTX
MI250 MI250
Instinct MI300X Instinct MI300X

NVIDIA RTX A40-24Q

19.3

NVIDIA RTX A40-24Q

19.3

Contents:

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

Memory

Memory Size

🔥 +500% 144 ГБ ×2 (288 ГБ)
24 GB

Memory Type

HBM3e GDDR6

Memory Bandwidth

🔥 4.10 TB/s ×2 (8.2 TB/s)
695.8 GB/s

Memory Bus Width

4,096 бит ×2 (8192 бит) 384 бит

ML Performance

FP16 (Half Precision)

1.2318 TFLOPS
🔥 +2,938% 37.42 TFLOPS

BF16 (Brain Float)

No No

TF32 (TensorFloat)

No No

Compute Power

FP32 (Single Precision)

🔥 +106% 76.99 TFLOPS
37.42 TFLOPS

FP64 (Double Precision)

🔥 +106% 1.2029 TFLOPS
0.5846 TFLOPS

CUDA Cores

🔥 +76% 18,944 ×2 (37888)
10,752

RT Cores

No
🔥 84

Architecture & Compatibility

GPU Architecture

Blackwell Ultra Ampere

SM (Streaming Multiprocessor)

🔥 +76% 148
84

PCIe Version

PCIe 5.0 x16 PCIe 4.0 x16

ML Software Support

CUDA Version

🔥 10.3
8.6

Clocks & Performance

Base Clock

🔥 +28% 1,665
1,305

Boost Clock

🔥 +17% 2,032
1,740

Memory Clock

🔥 +10% 2,000
1,812

Power Consumption

Recommended PSU

1800 W
🔥 -61% 700 W

Power Connector

No 8-pin EPS

TDP/TGP

1400 W
🔥 -79% 300 W

Rendering

Texture Units (TMU)

🔥 +76% 592 ×2 (1184)
336

ROP

No
🔥 84

L2 Cache

50 MB
🔥 6 MB

Additional

Slots

🔥 SXM Module
Dual-slot

Release Date

Sept. 11, 2025 Oct. 5, 2020

Display Outputs

No outputs
3x DisplayPort 1.4a

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