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GeForce GTX 660 Ti vs Geforce GTX 690

Intro

The GeForce GTX 660 Ti has clock 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 TAUs and 24 Rasterization Operator Units.

Compare those specifications to the Geforce GTX 690, which has a GPU core clock speed of 915 MHz, and 2048 MB of GDDR5 memory set to run at 1502 MHz through a 256-bit bus. It also features 1536 SPUs, 128 TAUs, and 32 ROPs.

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Geforce GTX 690 13111 points
GeForce GTX 660 Ti 6013 points
Difference: 7098 (118%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 660 Ti 150 Watts
Geforce GTX 690 300 Watts
Difference: 150 Watts (100%)

Memory Bandwidth

The Geforce GTX 690 should in theory perform a lot faster than the GeForce GTX 660 Ti in general. (explain)

Geforce GTX 690 384512 MB/sec
GeForce GTX 660 Ti 144000 MB/sec
Difference: 240512 (167%)

Texel Rate

The Geforce GTX 690 should be much (approximately 129%) more effective at AF than the GeForce GTX 660 Ti. (explain)

Geforce GTX 690 234240 Mtexels/sec
GeForce GTX 660 Ti 102480 Mtexels/sec
Difference: 131760 (129%)

Pixel Rate

The Geforce GTX 690 should be a lot (more or less 167%) more effective at FSAA than the GeForce GTX 660 Ti, and will be able to handle higher screen resolutions without slowing down too much. (explain)

Geforce GTX 690 58560 Mpixels/sec
GeForce GTX 660 Ti 21960 Mpixels/sec
Difference: 36600 (167%)

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

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GeForce GTX 660 Ti

Amazon.com

Check prices at:

Geforce GTX 690

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model GeForce GTX 660 Ti Geforce GTX 690
Manufacturer nVidia nVidia
Year August 2012 April 2012
Code Name GK104 GK104
Memory 2048 MB 2048 MB (x2)
Core Speed 915 MHz 915 MHz (x2)
Memory Speed 6000 MHz 6008 MHz (x2)
Power (Max TDP) 150 watts 300 watts
Bandwidth 144000 MB/sec 384512 MB/sec
Texel Rate 102480 Mtexels/sec 234240 Mtexels/sec
Pixel Rate 21960 Mpixels/sec 58560 Mpixels/sec
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)
Fab Process 28 nm 28 nm
Transistors 3540 million 3540 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.0 DirectX 11.0
OpenGL Version OpenGL 4.3 OpenGL 4.2

Memory Bandwidth: Memory bandwidth is the maximum amount of information (in units of megabytes per second) that can be moved over the external memory interface in one second. It's calculated by multiplying the card's interface width by its memory clock speed. In the case of DDR RAM, the result should 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 AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This figure is worked out by multiplying the total texture units of the card by the core speed of the chip. The higher the texel rate, the better the 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 the video card can possibly record to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

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GeForce GTX 660 Ti

Amazon.com

Check prices at:

Geforce GTX 690

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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