NVIDIA B300 vs VisionTek R7 250 OC

Comparison of NVIDIA B300 with 144 GB HBM3e and 18,944 cores vs VisionTek R7 250 OC with 1,024 GB GDDR5 and 384 cores.

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Performance Rating

NVIDIA B300 outperforms VisionTek R7 250 OC by 2,922.27% 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

VisionTek R7 250 OC

2.4

VisionTek R7 250 OC

2.4

Contents:

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

Memory

Memory Size

🔥 144 ГБ ×2 (288 ГБ)
1,024 MB

Memory Type

HBM3e GDDR5

Memory Bandwidth

🔥 4.10 TB/s ×2 (8.2 TB/s)
73.60 GB/s

Memory Bus Width

4,096 бит ×2 (8192 бит) 128 бит

ML Performance

FP16 (Half Precision)

🔥 1.2318 TFLOPS
No

BF16 (Brain Float)

No No

TF32 (TensorFloat)

No No

Compute Power

FP32 (Single Precision)

🔥 +9,183% 76.99 TFLOPS
0.8294 TFLOPS

FP64 (Double Precision)

🔥 +2,222% 1.2029 TFLOPS
0.0518 TFLOPS

CUDA Cores

🔥 +4,833% 18,944 ×2 (37888)
384

RT Cores

No No

Architecture & Compatibility

GPU Architecture

Blackwell Ultra GCN 1.0

SM (Streaming Multiprocessor)

🔥 148
No

PCIe Version

PCIe 5.0 x16 PCIe 3.0 x8

ML Software Support

CUDA Version

10.3 No

Clocks & Performance

Base Clock

🔥 +62% 1,665
1,030

Boost Clock

🔥 +88% 2,032
1,080

Memory Clock

🔥 +74% 2,000
1,150

Power Consumption

Recommended PSU

1800 W
🔥 -86% 250 W

Power Connector

No None

TDP/TGP

1400 W
🔥 -95% 65 W

Rendering

Texture Units (TMU)

🔥 +2,367% 592 ×2 (1184)
24

ROP

No No

L2 Cache

🔥 50 MB
256 KB

Additional

Slots

🔥 SXM Module
Single-slot

Release Date

Sept. 11, 2025 Oct. 8, 2013

Display Outputs

No outputs
1x DVI
1x HDMI 1.4a
1x VGA

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