NVIDIA B300 vs SPARKLE Calibre GT 520

Comparison of NVIDIA B300 with 144 GB HBM3e and 18,944 cores vs SPARKLE Calibre GT 520 with 1,024 GB DDR3 and 48 cores.

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Performance Rating

NVIDIA B300 outperforms SPARKLE Calibre GT 520 by 10,324.64% 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

SPARKLE Calibre GT 520

0.7

SPARKLE Calibre GT 520

0.7

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 DDR3

Memory Bandwidth

🔥 4.10 TB/s ×2 (8.2 TB/s)
16.00 GB/s

Memory Bus Width

4,096 бит ×2 (8192 бит) 64 бит

ML Performance

FP16 (Half Precision)

🔥 1.2318 TFLOPS
No

BF16 (Brain Float)

No No

TF32 (TensorFloat)

No No

Compute Power

FP32 (Single Precision)

🔥 +44,454% 76.99 TFLOPS
0.1728 TFLOPS

FP64 (Double Precision)

🔥 +8,253% 1.2029 TFLOPS
0.0144 TFLOPS

CUDA Cores

🔥 +39,367% 18,944 ×2 (37888)
48

RT Cores

No No

Architecture & Compatibility

GPU Architecture

Blackwell Ultra Fermi 2.0

SM (Streaming Multiprocessor)

🔥 +14,700% 148
1

PCIe Version

PCIe 5.0 x16 PCIe 2.0 x16

ML Software Support

CUDA Version

🔥 10.3
2.1

Clocks & Performance

Base Clock

🔥 1,665
No

Boost Clock

🔥 2,032
No

Memory Clock

🔥 +100% 2,000
1,000

Power Consumption

Recommended PSU

1800 W
🔥 -89% 200 W

Power Connector

No None

TDP/TGP

1400 W
🔥 -98% 29 W

Rendering

Texture Units (TMU)

🔥 +7,300% 592 ×2 (1184)
8

ROP

No No

L2 Cache

🔥 50 MB
128 KB

Additional

Slots

🔥 SXM Module
Single-slot

Release Date

Sept. 11, 2025 April 13, 2011

Display Outputs

No outputs
1x DVI
1x HDMI 1.3a
1x VGA

1x DVI
1x HDMI 1.3a

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