GIGABYTE GTX 660 WindForce 2X Rev. 2 vs NVIDIA B300

Comparison of GIGABYTE GTX 660 WindForce 2X Rev. 2 with 2 GB GDDR5 and 960 cores vs NVIDIA B300 with 144 GB HBM3e and 18,944 cores.

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Performance Rating

NVIDIA B300 outperforms GIGABYTE GTX 660 WindForce 2X Rev. 2 by 3,874.03% in the overall GPU ARK performance rating

A100 A100
H200 H200
MI325X MI325X

GIGABYTE GTX 660 WindForce 2X Rev. 2

1.8

GIGABYTE GTX 660 WindForce 2X Rev. 2

1.8
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

GDDR5 HBM3e

Memory Bandwidth

144.2 GB/s
🔥 4.10 TB/s ×2 (8.2 TB/s)

Memory Bus Width

192 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)

2.008 TFLOPS
🔥 +3,734% 76.99 TFLOPS

FP64 (Double Precision)

0.0837 TFLOPS
🔥 +1,337% 1.2029 TFLOPS

CUDA Cores

960
🔥 +1,873% 18,944 ×2 (37888)

RT Cores

No No

Architecture & Compatibility

GPU Architecture

Kepler Blackwell Ultra

SM (Streaming Multiprocessor)

No
🔥 148

PCIe Version

PCIe 3.0 x16 PCIe 5.0 x16

ML Software Support

CUDA Version

3.0
🔥 10.3

Clocks & Performance

Base Clock

980
🔥 +70% 1,665

Boost Clock

1,046
🔥 +94% 2,032

Memory Clock

1,502
🔥 +33% 2,000

Power Consumption

Recommended PSU

🔥 -83% 300 W
1800 W

Power Connector

1x 6-pin No

TDP/TGP

🔥 -90% 140 W
1400 W

Rendering

Texture Units (TMU)

80
🔥 +640% 592 ×2 (1184)

ROP

No No

L2 Cache

384 KB
🔥 50 MB

Additional

Slots

Dual-slot
🔥 SXM Module

Release Date

Nov. 27, 2013 Sept. 11, 2025

Display Outputs

2x DVI
1x HDMI 1.4a
1x DisplayPort 1.2
No outputs

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