NVIDIA B300

NVIDIA B300 — 144 Гб ×2 (288 Гб) HBM3e, 18944 ×2 (37888) ядер, GPI 71.9

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Performance Rating

The B300 is a professional graphics card by NVIDIA, launched on September 11th, 2025. Built on the 5 nm process, and based on the GB110 graphics processor, the card does not support DirectX. Since B300 does not support DirectX 11 or DirectX 12, it might not be able to run all the latest games. B300 combines two graphics processors to increase performance. It features 18944 shading units, 592 texture mapping units, and 24 ROPs, per GPU. Also included are 592 tensor cores which help improve the speed of machine learning applications. NVIDIA has paired 288 GB HBM3e memory with the B300, which are connected using a 4096-bit memory interface per GPU (each GPU manages 147,456 MB). The GPU is operating at a frequency of 1665 MHz, which can be boosted up to 2032 MHz, memory is running at 2000 MHz.

A100 A100
H200 H200
MI325X MI325X

NVIDIA B300

71.9

NVIDIA B300

71.9

Memory

Memory Size

144 GB ×2 (288 ГБ)

Memory Type

Memory Bandwidth

4.10 TB/s ×2 (8.2 TB/s)

Memory Bus Width

4,096 бит ×2 (8192 бит)

ML Performance

FP16 (Half Precision)

1.2318 TFLOPS

BF16 (Brain Float)

No TFLOPS
311.84 TFLOPS
(NVIDIA A800 SXM4 80 GB)

TF32 (TensorFloat)

Compute Power

FP32 (Single Precision)

76.99 TFLOPS

FP64 (Double Precision)

1.2029 TFLOPS

CUDA Cores

18,944 ×2 (37888)

Architecture & Compatibility

GPU Architecture

Blackwell Ultra

SM (Streaming Multiprocessor)

PCIe Version

PCIe 5.0 x16

ML Software Support

CUDA Version

CUDA Toolkit (first supported)

CUDA Toolkit 12

CUDA Toolkit status

Supported

Clocks & Performance

Base Clock

Boost Clock

Memory Clock

Power Consumption

Recommended PSU

Power Connector

No

TDP/TGP

1400 W
unknown
(NVIDIA CMP 70HX)

Rendering

Texture Units (TMU)

592 ×2 (1184)

L2 Cache

50 MB

Additional

Slots

SXM Module
SXM Module
(NVIDIA B300)

Release Date

Sept. 11, 2025
March 12, 2026
(Intel Arc B770)

Display Outputs

No outputs
Portable Device Dependent
(NVIDIA GeForce RTX 5090 Mobile)

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