Galaxy GT 630 Kepler vs NVIDIA B300

Comparison of Galaxy GT 630 Kepler with 2 GB DDR3 and 384 cores vs NVIDIA B300 with 144 GB HBM3e and 18,944 cores.

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Performance Rating

NVIDIA B300 outperforms Galaxy GT 630 Kepler by 12,519.3% in the overall GPU ARK performance rating

A100 A100
H200 H200
MI325X MI325X

Galaxy GT 630 Kepler

0.6

Galaxy GT 630 Kepler

0.6
RX 7900 XTX RX 7900 XTX
MI250 MI250
Instinct MI300X Instinct MI300X

NVIDIA B300

71.9

NVIDIA B300

71.9

Contents:

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

Memory

Memory Size

2 GB
🔥 +7,100% 144 ГБ ×2 (288 ГБ)

Memory Type

DDR3 HBM3e

Memory Bandwidth

14.40 GB/s
🔥 4.10 TB/s ×2 (8.2 TB/s)

Memory Bus Width

64 бит 4,096 бит ×2 (8192 бит)

ML Performance

FP16 (Half Precision)

No
🔥 1.2318 TFLOPS

BF16 (Brain Float)

No No

TF32 (TensorFloat)

No No

Compute Power

FP32 (Single Precision)

0.6927 TFLOPS
🔥 +11,014% 76.99 TFLOPS

FP64 (Double Precision)

0.0289 TFLOPS
🔥 +4,062% 1.2029 TFLOPS

CUDA Cores

384
🔥 +4,833% 18,944 ×2 (37888)

RT Cores

No No

Architecture & Compatibility

GPU Architecture

Kepler 2.0 Blackwell Ultra

SM (Streaming Multiprocessor)

No
🔥 148

PCIe Version

PCIe 2.0 x8 PCIe 5.0 x16

ML Software Support

CUDA Version

3.5
🔥 10.3

Clocks & Performance

Base Clock

No
🔥 1,665

Boost Clock

No
🔥 2,032

Memory Clock

900
🔥 +122% 2,000

Power Consumption

Recommended PSU

🔥 -89% 200 W
1800 W

Power Connector

None No

TDP/TGP

🔥 -98% 25 W
1400 W

Rendering

Texture Units (TMU)

32
🔥 +1,750% 592 ×2 (1184)

ROP

No No

L2 Cache

512 KB
🔥 50 MB

Additional

Slots

Single-slot
🔥 SXM Module

Release Date

May 29, 2013 Sept. 11, 2025

Display Outputs

1x DVI
1x HDMI 1.4a
1x VGA

1x DVI
1x VGA
No outputs

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