NVIDIA B300 vs NVIDIA CMP 40HX

Comparison NVIDIA B300 with 144 GB HBM3e and 18,944 cores vs NVIDIA CMP 40HX with 8 GB GDDR6 and 2,304 cores.

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Performance Rating

NVIDIA B300 outperforms NVIDIA CMP 40HX by 1,102.84% 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 CMP 40HX

6.0

NVIDIA CMP 40HX

6.0

Expert Comparison

NVIDIA B300 значительно превосходит NVIDIA CMP 40HX по многим параметрам: он имеет больше ядер, большую память и шину, а также значительно большую пропускную способность и FP32-производительность. B300 подходит для сложных вычислений и обработки больших объемов данных, тогда как CMP 40HX более подходящ для базовых задач и менее требовательных приложений.

Contents:

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

Memory

Memory Size

🔥 +1,700% 144 ГБ ×2 (288 ГБ)
8 GB

Memory Type

HBM3e GDDR6

Memory Bandwidth

🔥 4.10 TB/s ×2 (8.2 TB/s)
448.0 GB/s

Memory Bus Width

4,096 бит ×2 (8192 бит) 256 бит

ML Performance

FP16 (Half Precision)

1.2318 TFLOPS
🔥 +1,135% 15.21 TFLOPS

BF16 (Brain Float)

No No

TF32 (TensorFloat)

No No

Compute Power

FP32 (Single Precision)

🔥 +913% 76.99 TFLOPS
7.603 TFLOPS

FP64 (Double Precision)

🔥 +406% 1.2029 TFLOPS
0.2376 TFLOPS

CUDA Cores

🔥 +722% 18,944 ×2 (37888)
2,304

RT Cores

No
🔥 36

Architecture & Compatibility

GPU Architecture

Blackwell Ultra Turing

SM (Streaming Multiprocessor)

🔥 +311% 148
36

PCIe Version

PCIe 5.0 x16 PCIe 1.0 x4

ML Software Support

CUDA Version

🔥 10.3
7.5

CUDA Toolkit (first supported)

v12 v10

CUDA Toolkit status

Supported Supported

Clocks & Performance

Base Clock

🔥 +13% 1,665
1,470

Boost Clock

🔥 +23% 2,032
1,650

Memory Clock

🔥 +14% 2,000
1,750

Power Consumption

Recommended PSU

1800 W
🔥 -75% 450 W

Power Connector

No 1x 8-pin

TDP/TGP

1400 W
🔥 -87% 185 W

Rendering

Texture Units (TMU)

🔥 +311% 592 ×2 (1184)
144

ROP

No
🔥 36

L2 Cache

🔥 +1,150% 50 MB
4 MB

Additional

Slots

🔥 SXM Module
Dual-slot

Release Date

Sept. 11, 2025 Feb. 25, 2021

Display Outputs

No outputs
No outputs

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