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GeForce GTX 660 Ti vs Geforce GTX 690
Intro
The GeForce GTX 660 Ti comes with core speeds of 915 MHz on the GPU, and 1500 MHz on the 2048 MB of GDDR5 RAM. It features 1344 SPUs as well as 112 Texture Address Units and 24 ROPs.Compare all that to the Geforce GTX 690, which comes with clock speeds of 915 MHz on the GPU, and 1502 MHz on the 2048 MB of GDDR5 RAM. It features 1536 SPUs as well as 128 TAUs and 32 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| GeForce GTX 660 Ti |
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150 Watts |
| Geforce GTX 690 |
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300 Watts |
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Memory Bandwidth
Performance-wise, the Geforce GTX 690 should in theory be a lot better than the GeForce GTX 660 Ti overall. (explain)
| Geforce GTX 690 |
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384512 MB/sec |
| GeForce GTX 660 Ti |
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144000 MB/sec |
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Texel Rate
The Geforce GTX 690 will be a lot (more or less 129%) faster with regards to texture filtering than the GeForce GTX 660 Ti. (explain)| Geforce GTX 690 |
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234240 Mtexels/sec |
| GeForce GTX 660 Ti |
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102480 Mtexels/sec |
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Pixel Rate
If running with lots of anti-aliasing is important to you, then the Geforce GTX 690 is a better choice, and very much so. (explain)| Geforce GTX 690 |
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58560 Mpixels/sec |
| GeForce GTX 660 Ti |
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21960 Mpixels/sec |
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Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.
One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.
Price Comparison
Please note that the price comparisons are based on search keywords, and might not be the exact same card listed on this page. We have no control over the accuracy of their search results.
GeForce GTX 660 TiAmazon.com
Other US-based stores
Amazon.co.uk
Amazon.de
Amazon.fr
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Geforce GTX 690Amazon.com
Other US-based stores
Amazon.co.uk
Amazon.de
Amazon.fr
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Specifications
| Model | GeForce GTX 660 Ti | Geforce GTX 690 |
|---|---|---|
| Manufacturer | nVidia | nVidia |
| Year | August 2012 | April 2012 |
| Code Name | GK104 | GK104 |
| Fab Process | 28 nm | 28 nm |
| Bus | PCIe 3.0 x16 | PCIe 3.0 x16 |
| Memory | 2048 MB | 2048 MB (x2) |
| Core Speed | 915 MHz | 915 MHz (x2) |
| Shader Speed | 915 MHz | 915 MHz (x2) |
| Memory Speed | 1500 MHz (6000 MHz effective) | 1502 MHz (6008 MHz effective) (x2) |
| Unified Shaders | 1344 | 1536 (x2) |
| Texture Mapping Units | 112 | 128 (x2) |
| Render Output Units | 24 | 32 (x2) |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 192-bit | 256-bit (x2) |
| DirectX Version | DirectX 11.1 | DirectX 11.1 |
| OpenGL Version | OpenGL 4.3 | OpenGL 4.2 |
| Power (Max TDP) | 150 watts | 300 watts |
| Shader Model | 5.0 | 5.0 |
| Bandwidth | 144000 MB/sec | 384512 MB/sec |
| Texel Rate | 102480 Mtexels/sec | 234240 Mtexels/sec |
| Pixel Rate | 21960 Mpixels/sec | 58560 Mpixels/sec |
Memory Bandwidth: Bandwidth is the maximum amount of information (counted in megabytes per second) that can be moved over the external memory interface in a second. It's calculated by multiplying the card's interface width by its memory speed. If the card has DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.
Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This number is calculated by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.
Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly record to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.
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