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GeForce GTX 285 2GB vs GeForce GTX 660 Ti

Intro

The GeForce GTX 285 2GB has a clock speed of 648 MHz and a GDDR3 memory frequency of 1242 MHz. It also uses a 512-bit bus, and makes use of a 55 nm design. It is comprised of 240 SPUs, 80 TAUs, and 32 Raster Operation Units.

Compare that to the GeForce GTX 660 Ti, which comes with GPU clock speed of 915 MHz, and 2048 MB of GDDR5 RAM running at 1500 MHz through a 192-bit bus. It also is made up of 1344 SPUs, 112 TAUs, and 24 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 660 Ti 150 Watts
GeForce GTX 285 2GB 204 Watts
Difference: 54 Watts (36%)

Memory Bandwidth

The GeForce GTX 285 2GB should in theory be just a bit faster than the GeForce GTX 660 Ti overall. (explain)

GeForce GTX 285 2GB 158976 MB/sec
GeForce GTX 660 Ti 144000 MB/sec
Difference: 14976 (10%)

Texel Rate

The GeForce GTX 660 Ti is much (about 98%) faster with regards to AF than the GeForce GTX 285 2GB. (explain)

GeForce GTX 660 Ti 102480 Mtexels/sec
GeForce GTX 285 2GB 51840 Mtexels/sec
Difference: 50640 (98%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 660 Ti is superior to the GeForce GTX 285 2GB, but only just. (explain)

GeForce GTX 660 Ti 21960 Mpixels/sec
GeForce GTX 285 2GB 20736 Mpixels/sec
Difference: 1224 (6%)

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.

Price Comparison

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GeForce GTX 285 2GB

Amazon.com

Check prices at:

GeForce GTX 660 Ti

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 285 2GB GeForce GTX 660 Ti
Manufacturer nVidia nVidia
Year January 15, 2009 August 2012
Code Name G200b GK104
Memory 2048 MB 2048 MB
Core Speed 648 MHz 915 MHz
Memory Speed 2484 MHz 6000 MHz
Power (Max TDP) 204 watts 150 watts
Bandwidth 158976 MB/sec 144000 MB/sec
Texel Rate 51840 Mtexels/sec 102480 Mtexels/sec
Pixel Rate 20736 Mpixels/sec 21960 Mpixels/sec
Unified Shaders 240 1344
Texture Mapping Units 80 112
Render Output Units 32 24
Bus Type GDDR3 GDDR5
Bus Width 512-bit 192-bit
Fab Process 55 nm 28 nm
Transistors 1400 million 3540 million
Bus PCIe x16 2.0 PCIe 3.0 x16
DirectX Version DirectX 10 DirectX 11.0
OpenGL Version OpenGL 3.1 OpenGL 4.3

Memory Bandwidth: Bandwidth is the max amount of data (in units of MB per second) that can be moved past the external memory interface within a second. It is calculated by multiplying the card's interface width by the speed of its memory. In the case of DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This number is calculated by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

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GeForce GTX 285 2GB

Amazon.com

Check prices at:

GeForce GTX 660 Ti

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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