NVIDIA · GeForce GTX 600 Series

NVIDIA GeForce GTX 660 Rev. 2

The NVIDIA GeForce GTX 660 Rev. 2 is a graphics card, built on the Kepler architecture using a 28 nm process. It has 2 GB of GDDR5 memory on a 192-bit bus, 144.2 GB/s of memory bandwidth, a boost clock of 1.03 GHz and a 140 W board power rating.

KeplerGK10428 nm

7/10 key specs recorded · 13 facts

Depth: 13 recorded fields

Specification data last verified October 1, 2026 against Wikipedia and Wikipedia GPU list tables (wikigrid-2026-09). Coverage: 7 of 10 tracked specifications recorded.

WikipediaWikipedia GPU list tables (wikigrid-2026-09)

Shading units

n/a

Memory

2 GB

GDDR5 · 192-bit

Boost clock

1.03 GHz

980 MHz base

Board power

140 W

Graphics processor

Architecture Kepler

Codename GK104

Chip Not recorded

Process node 28 nm

Transistors Not recorded

Die size Not recorded

The NVIDIA GeForce GTX 660 Rev. 2 is based on the Kepler architecture, uses the GK104 graphics processor and is manufactured on a 28 nm process.

Shader configuration

Shading units Not recorded

Compute units Not recorded

Streaming multiprocessors Not recorded

Execution units Not recorded

Texture units (TMUs) Not recorded

Render output units (ROPs) 24

Ray tracing cores Not recorded

Tensor / AI cores Not recorded

XMX engines Not recorded

Infinity cache Not recorded

The NVIDIA GeForce GTX 660 Rev. 2 24 render output units.

The NVIDIA GeForce GTX 660 Rev. 2 does not use XMX engines; those are specific to Intel Arc graphics. Infinity Cache is an AMD architectural feature and does not apply to the NVIDIA GeForce GTX 660 Rev. 2.

Clock speeds

Base clock 980 MHz

Boost clock 1.03 GHz

Game clock Not recorded

Memory clock Not recorded

Effective memory clock Not recorded

The NVIDIA GeForce GTX 660 Rev. 2 runs at a base clock of 980 MHz and boosts to 1.03 GHz.

Memory

Size 2 GB

Type GDDR5

Bus width 192-bit

Bandwidth 144.2 GB/s

The NVIDIA GeForce GTX 660 Rev. 2 is equipped with 2 GB of GDDR5 memory, uses a 192-bit memory bus and delivers 144.2 GB/s of memory bandwidth.

Board and power

The NVIDIA GeForce GTX 660 Rev. 2 has a board power rating of 140 W.

Board power (TDP) 140 W

Total board power Not recorded

Suggested PSU Not recorded

Power connectors Not recorded

Slot width Not recorded

Length Not recorded

Width Not recorded

Height Not recorded

Cooler Not recorded

Max temperature Not recorded

Bus interface Not recorded

Market

Launched Not recorded

Launch price $229

Status Not recorded

Form factor Not recorded

Segment desktop

Series GeForce GTX 600 Series

The NVIDIA GeForce GTX 660 Rev. 2 launched at a price of $229.

Frequently asked questions

How much VRAM does the NVIDIA GeForce GTX 660 Rev. 2 have?

The NVIDIA GeForce GTX 660 Rev. 2 has 2 GB of GDDR5 memory on a 192-bit bus. Its memory bandwidth is 144.2 GB/s.

How much power does the NVIDIA GeForce GTX 660 Rev. 2 use and what power supply does it need?

The NVIDIA GeForce GTX 660 Rev. 2 has a board power rating of 140 W.

What was the launch price of the NVIDIA GeForce GTX 660 Rev. 2?

The NVIDIA GeForce GTX 660 Rev. 2 launched at a price of $229.

Corrections to this record

After an audit, 1 empty field was filled from sources. Each change is listed with its old value, new value, rule and sources.

1 filled value

Architecture: Kepler (was Not recorded). Rule: Architecture from chip codename. chips GK104 | GK104 all -> Kepler. Sources: Wikipedia: List of Nvidia graphics processing units; Wikipedia: List of Nvidia desktop graphics processing units.

The audit log is public: all changes for this GPU, the corrections overview and the method.