NVIDIA · GeForce GTX 600 Series

NVIDIA GeForce GTX 660

The NVIDIA GeForce GTX 660 is a graphics card released on September 13, 2012, built on the Kepler architecture using a 28 nm process. It has 3 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. It scores 4,050 in the PassMark G3D benchmark. It supports DirectX 11 and OpenGL 4.5.

KeplerGK106-400-A128 nm

9/10 key specs recorded · 27 facts

Depth: 38 recorded fields, 5 PassMark workloads

Specification data last verified October 1, 2026 against PassMark Videocard Benchmark and Wikipedia GPU list tables (wikigrid-2026-09). Coverage: 9 of 10 tracked specifications recorded.

PassMark Videocard Benchmark PassMark Videocard Benchmark Wikipedia GPU list tables (wikigrid-2026-09)

Shading units

n/a

Memory

3 GB

GDDR5 · 192-bit

Boost clock

1.03 GHz

980 MHz base

Board power

140 W

Performance

The NVIDIA GeForce GTX 660 scores 4,050 in the PassMark G3D benchmark, higher than 77.6% of the 2,658 GPUs benchmarked (PassMark rank #630), measured across 16,666 submitted results. Its PassMark G2D score is 493.

PassMark G3D Mark

4,050

Rank #630
Faster than 77.6% of 2,658 GPUs
16,666 samples

0relative to the fastest GPU on record (41,928)

PassMark workload tests

DirectX 9 67 fps

reference: fastest recorded 526 fps · faster than 66.6% of 1,675 GPUs

DirectX 10 17 fps

reference: fastest recorded 231 fps · faster than 59.2% of 1,602 GPUs

DirectX 11 34 fps

reference: fastest recorded 362 fps · faster than 62.1% of 1,430 GPUs

DirectX 12 15 fps

reference: fastest recorded 213 fps · faster than 47.8% of 1,274 GPUs

GPU Compute 1,817 ops/s

reference: fastest recorded 26,591 ops/s · faster than 62.3% of 1,447 GPUs

Averages of PassMark PerformanceTest submissions; frames/sec are PassMark test-scene rates, not game FPS. Tests PassMark does not report for this card are omitted. PassMark listing

In the PassMark workload tests the NVIDIA GeForce GTX 660 averages DirectX 9 67 fps, DirectX 10 17 fps, DirectX 11 34 fps, DirectX 12 15 fps and GPU Compute 1,817 ops/s, across 16,666 submitted results. Frames per second are PassMark test-scene rates, not game frame rates.

As stated by PassMark

Category Desktop

Bus interface PCIe 3.0 x16

Max memory 3 GB

Core clock 980 MHz

Memory clock 1502 MHz

DirectX 11

OpenGL 4.5

Max TDP 140 W

First benchmarked 2012-09-22

Samples 16,666

PassMark listing (collected 2026-09-30)

PassMark's own listing for the NVIDIA GeForce GTX 660 states the PCIe 3.0 x16 interface, up to 3 GB of memory, a core clock of 980 MHz, DirectX 11 and OpenGL 4.5, first benchmarked on 2012-09-22. These are PassMark's figures, shown separately from the specification tables above.

Not to be confused with

This page covers the NVIDIA GeForce GTX 660 specifically. It is a different product from NVIDIA GeForce GTX 660 Ti, NVIDIA GeForce GTX 660M, NVIDIA GeForce GTX 660 Rev. 2, which have their own specifications. Check the exact model name before comparing figures.

Graphics processor

Architecture Kepler

Codename GK106-400-A1

Chip Not recorded

Process node 28 nm

Transistors Not recorded

Die size Not recorded

The NVIDIA GeForce GTX 660 is based on the Kepler architecture, uses the GK106-400-A1 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 24 render output units.

The NVIDIA GeForce GTX 660 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.

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 runs at a base clock of 980 MHz and boosts to 1.03 GHz.

Memory

Size 3 GB

Type GDDR5

Bus width 192-bit

Bandwidth 144.2 GB/s

The NVIDIA GeForce GTX 660 is equipped with 3 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 has a board power rating of 140 W and it connects over PCIe 3.0 x16.

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 PCIe 3.0 x16

Market

Launched September 13, 2012

Launch price $229

Status Not recorded

Form factor Not recorded

Segment Desktop

Series GeForce GTX 600 Series

The NVIDIA GeForce GTX 660 was released on September 13, 2012 and launched at a price of $229.

Benchmarks

PassMark G3D 4,050

PassMark G2D 493

Rank #630

Samples 16,666

Graphics and compute APIs

The NVIDIA GeForce GTX 660 supports DirectX 11 and OpenGL 4.5.

DirectX 11

OpenGL 4.5

Feex has no recorded CUDA compute capability for the NVIDIA GeForce GTX 660. Feex has no recorded Vulkan version for the NVIDIA GeForce GTX 660. Feex has no recorded OpenCL version for the NVIDIA GeForce GTX 660.

Frequently asked questions

How much VRAM does the NVIDIA GeForce GTX 660 have?

The NVIDIA GeForce GTX 660 has 3 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 use and what power supply does it need?

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

How fast is the NVIDIA GeForce GTX 660?

The NVIDIA GeForce GTX 660 scores 4,050 in the PassMark G3D benchmark, higher than 77.6% of the 2,658 GPUs benchmarked. Its PassMark rank is #630. In the PassMark DirectX 12 test it averages 15 fps.

What bus interface does the NVIDIA GeForce GTX 660 use?

The NVIDIA GeForce GTX 660 connects over PCIe 3.0 x16.

When was the NVIDIA GeForce GTX 660 released and how much did it cost at launch?

The NVIDIA GeForce GTX 660 was released on September 13, 2012 and 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 GK106 | GK106 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.

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Compare the NVIDIA GeForce GTX 660

Side-by-side specification comparisons against cards in the same performance band.

vs NVIDIA GeForce GTX 480