NVIDIA Quadro K420 vs NVIDIA RTX PRO 4000 Blackwell SFF

Comparison of NVIDIA Quadro K420 with 1,024 GB DDR3 and 192 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 NVIDIA Quadro K420 by 1,005.83% in the overall GPU ARK performance rating

A100 A100
H200 H200
MI325X MI325X

NVIDIA Quadro K420

1.2

NVIDIA Quadro K420

1.2
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

1,024 MB
🔥 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)

0.3364 TFLOPS
🔥 +7,528% 25.66 TFLOPS

FP64 (Double Precision)

0.014 TFLOPS
🔥 +2,764% 0.401 TFLOPS

CUDA Cores

192
🔥 +4,567% 8,960

RT Cores

No
🔥 70

Architecture & Compatibility

GPU Architecture

Kepler Blackwell 2.0

SM (Streaming Multiprocessor)

No
🔥 70

PCIe Version

PCIe 2.0 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

🔥 -20% 200 W
250 W

Power Connector

None None

TDP/TGP

🔥 -41% 41 W
70 W

Rendering

Texture Units (TMU)

16
🔥 +1,650% 280

ROP

No
🔥 70

L2 Cache

256 KB
🔥 48 MB

Additional

Slots

Single-slot Dual-slot

Release Date

July 22, 2014 Aug. 11, 2025

Display Outputs

1x DVI
1x DisplayPort 1.2
4x mini-DisplayPort 2.1b

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