GIGABYTE GTX 660 WindForce 2X Rev. 1.1 vs NVIDIA RTX PRO 4000 Blackwell SFF

Comparison of GIGABYTE GTX 660 WindForce 2X Rev. 1.1 with 2 GB GDDR5 and 960 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 GIGABYTE GTX 660 WindForce 2X Rev. 1.1 by 641.34% in the overall GPU ARK performance rating

A100 A100
H200 H200
MI325X MI325X

GIGABYTE GTX 660 WindForce 2X Rev. 1.1

1.8

GIGABYTE GTX 660 WindForce 2X Rev. 1.1

1.8
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

2 GB
🔥 +1,100% 24 ГБ

Memory Type

GDDR5 GDDR7

Memory Bandwidth

144.2 GB/s 432.0 GB/s

Memory Bus Width

192 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)

1.981 TFLOPS
🔥 +1,195% 25.66 TFLOPS

FP64 (Double Precision)

0.0826 TFLOPS
🔥 +385% 0.401 TFLOPS

CUDA Cores

960
🔥 +833% 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

980
🔥 577

Boost Clock

1,032
🔥 +39% 1,432

Memory Clock

1,502
🔥 1,125

Power Consumption

Recommended PSU

300 W
🔥 -17% 250 W

Power Connector

1x 6-pin None

TDP/TGP

140 W
🔥 -50% 70 W

Rendering

Texture Units (TMU)

80
🔥 +250% 280

ROP

No
🔥 70

L2 Cache

384 KB
🔥 48 MB

Additional

Slots

Dual-slot Dual-slot

Release Date

April 21, 2014 Aug. 11, 2025

Display Outputs

2x DVI
1x HDMI 1.4a
1x DisplayPort 1.2
4x mini-DisplayPort 2.1b

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