HP GT 640 4 GB vs NVIDIA RTX PRO 4000 Blackwell SFF

Comparison of HP GT 640 4 GB with 4 GB DDR3 and 384 cores vs NVIDIA RTX PRO 4000 Blackwell SFF with 24 GB GDDR7 and 8,960 cores.

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Performance Rating

NVIDIA RTX PRO 4000 Blackwell SFF outperforms HP GT 640 4 GB by 1,743.06% in the overall GPU ARK performance rating

A100 A100
H200 H200
MI325X MI325X

HP GT 640 4 GB

0.7

HP GT 640 4 GB

0.7
RX 7900 XTX RX 7900 XTX
MI250 MI250
Instinct MI300X Instinct MI300X

NVIDIA RTX PRO 4000 Blackwell SFF

13.3

NVIDIA RTX PRO 4000 Blackwell SFF

13.3

Contents:

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

Memory

Memory Size

4 GB
🔥 +500% 24 ГБ

Memory Type

DDR3 GDDR7

Memory Bandwidth

28.51 GB/s 432.0 GB/s

Memory Bus Width

128 бит 192 бит

ML Performance

FP16 (Half Precision)

No
🔥 25.66 TFLOPS

BF16 (Brain Float)

No No

TF32 (TensorFloat)

No No

Compute Power

FP32 (Single Precision)

0.6121 TFLOPS
🔥 +4,092% 25.66 TFLOPS

FP64 (Double Precision)

0.0255 TFLOPS
🔥 +1,473% 0.401 TFLOPS

CUDA Cores

384
🔥 +2,233% 8,960

RT Cores

No
🔥 70

Architecture & Compatibility

GPU Architecture

Kepler Blackwell 2.0

SM (Streaming Multiprocessor)

No
🔥 70

PCIe Version

PCIe 3.0 x16 PCIe 5.0 x8

ML Software Support

CUDA Version

3.0
🔥 12.0

Clocks & Performance

Base Clock

No
🔥 577

Boost Clock

No
🔥 1,432

Memory Clock

891
🔥 +26% 1,125

Power Consumption

Recommended PSU

250 W 250 W

Power Connector

None None

TDP/TGP

🔥 -29% 50 W
70 W

Rendering

Texture Units (TMU)

32
🔥 +775% 280

ROP

No
🔥 70

L2 Cache

256 KB
🔥 48 MB

Additional

Slots

Single-slot Dual-slot

Release Date

April 24, 2012 Aug. 11, 2025

Display Outputs

1x DVI
1x HDMI 1.4a
1x DisplayPort 1.2
4x mini-DisplayPort 2.1b

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