NVIDIA B300 vs NVIDIA GeForce RTX 4090 48 GB

Comparison NVIDIA B300 with 144 GB HBM3e and 18,944 cores vs NVIDIA GeForce RTX 4090 48 GB with 48 GB GDDR6X and 16,384 cores.

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Performance Rating

NVIDIA B300 outperforms NVIDIA GeForce RTX 4090 48 GB by 102.16% 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 GeForce RTX 4090 48 GB

35.6

NVIDIA GeForce RTX 4090 48 GB

35.6

Expert Comparison

NVIDIA B300 имеет значительно больше памяти (144 ГБ HBM3e против 48 ГБ GDDR6X) и большую пропускную способность (4.10 TB/s против 1.01 TB/s), что делает его предпочтительным для вычислительно-интенсивных задач и больших объемов данных. Однако его энергопотребление в 3.1 раза выше (1400 Вт против 450 Вт). GeForce RTX 4090 48 GB более энергоэффективен, но его характеристики в других аспектах менее впечатляющие, особенно по индексу производительности GPU (GPI).

Contents:

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

Memory

Memory Size

🔥 +200% 144 ГБ ×2 (288 ГБ)
48 GB

Memory Type

HBM3e GDDR6X

Memory Bandwidth

🔥 +306% 4.10 TB/s ×2 (8.2 TB/s)
1.01 TB/s

Memory Bus Width

4,096 бит ×2 (8192 бит) 384 бит

ML Performance

FP16 (Half Precision)

1.2318 TFLOPS
🔥 +6,604% 82.58 TFLOPS

BF16 (Brain Float)

No No

TF32 (TensorFloat)

No No

Compute Power

FP32 (Single Precision)

76.99 TFLOPS
🔥 +7% 82.58 TFLOPS

FP64 (Double Precision)

🔥 1.2029 TFLOPS
No

CUDA Cores

🔥 +16% 18,944 ×2 (37888)
16,384

RT Cores

No
🔥 128

Architecture & Compatibility

GPU Architecture

Blackwell Ultra Ada Lovelace

SM (Streaming Multiprocessor)

🔥 +16% 148
128

PCIe Version

PCIe 5.0 x16 PCIe 4.0 x16

ML Software Support

CUDA Version

🔥 10.3
8.9

CUDA Toolkit (first supported)

v12 v11

CUDA Toolkit status

Supported Supported

Clocks & Performance

Base Clock

1,665
🔥 +34% 2,235

Boost Clock

2,032
🔥 +24% 2,520

Memory Clock

🔥 +52% 2,000
1,313

Power Consumption

Recommended PSU

1800 W
🔥 -53% 850 W

Power Connector

No 1x 16-pin

TDP/TGP

1400 W
🔥 -68% 450 W

Rendering

Texture Units (TMU)

🔥 +16% 592 ×2 (1184)
512

ROP

No
🔥 128

L2 Cache

50 MB
🔥 +44% 72 MB

Additional

Slots

🔥 SXM Module
Dual-slot

Release Date

Sept. 11, 2025 Sept. 20, 2022

Display Outputs

No outputs
HDMI
DisplayPort

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RTX 4090 (48GB)

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