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GeForce GTX 285 1GB vs GeForce GTX 660

Intro

The GeForce GTX 285 1GB uses a 55 nm design. nVidia has set the core speed at 648 MHz. The GDDR3 RAM works at a speed of 1242 MHz on this specific card. It features 240 SPUs along with 80 TAUs and 32 ROPs.

Compare all of that to the GeForce GTX 660, which comes with core speeds of 980 MHz on the GPU, and 1502 MHz on the 2048 MB of GDDR5 RAM. It features 960 SPUs as well as 80 Texture Address Units and 24 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 660 140 Watts
GeForce GTX 285 1GB 204 Watts
Difference: 64 Watts (46%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 285 1GB should in theory be a little bit better than the GeForce GTX 660 in general. (explain)

GeForce GTX 285 1GB 158976 MB/sec
GeForce GTX 660 144192 MB/sec
Difference: 14784 (10%)

Texel Rate

The GeForce GTX 660 should be a lot (approximately 51%) more effective at texture filtering than the GeForce GTX 285 1GB. (explain)

GeForce GTX 660 78400 Mtexels/sec
GeForce GTX 285 1GB 51840 Mtexels/sec
Difference: 26560 (51%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 660 is the winner, though not by far. (explain)

GeForce GTX 660 23520 Mpixels/sec
GeForce GTX 285 1GB 20736 Mpixels/sec
Difference: 2784 (13%)

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 1GB

Amazon.com

Check prices at:

GeForce GTX 660

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 1GB GeForce GTX 660
Manufacturer nVidia nVidia
Year January 15, 2009 September 2012
Code Name G200b GK106
Memory 1024 MB 2048 MB
Core Speed 648 MHz 980 MHz
Memory Speed 2484 MHz 6008 MHz
Power (Max TDP) 204 watts 140 watts
Bandwidth 158976 MB/sec 144192 MB/sec
Texel Rate 51840 Mtexels/sec 78400 Mtexels/sec
Pixel Rate 20736 Mpixels/sec 23520 Mpixels/sec
Unified Shaders 240 960
Texture Mapping Units 80 80
Render Output Units 32 24
Bus Type GDDR3 GDDR5
Bus Width 512-bit 192-bit
Fab Process 55 nm 28 nm
Transistors 1400 million 2540 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: Memory bandwidth is the largest amount of data (measured in megabytes per second) that can be transported over the external memory interface within a second. The number is calculated by multiplying the card's bus width by its memory speed. If the card has DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card could possibly record to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 285 1GB

Amazon.com

Check prices at:

GeForce GTX 660

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.

Comments

One Response to “GeForce GTX 285 1GB vs GeForce GTX 660”
Nathan says:

If you're going for a 285 get the 2GB version... I would personally recommend an r9 280x though.

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