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GeForce GTX 280 vs GeForce GTX 660 Ti

Intro

The GeForce GTX 280 makes use of a 65 nm design. nVidia has set the core speed at 602 MHz. The GDDR3 memory works at a speed of 1107 MHz on this model. It features 240 SPUs as well as 80 TAUs and 32 Rasterization Operator Units.

Compare those specs to the GeForce GTX 660 Ti, which comes with clock speeds of 915 MHz on the GPU, and 1500 MHz on the 2048 MB of GDDR5 memory. It features 1344 SPUs along with 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 280 236 Watts
Difference: 86 Watts (57%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 660 Ti should theoretically be a bit better than the GeForce GTX 280 overall. (explain)

GeForce GTX 660 Ti 144000 MB/sec
GeForce GTX 280 141696 MB/sec
Difference: 2304 (2%)

Texel Rate

The GeForce GTX 660 Ti is a lot (more or less 113%) better at anisotropic filtering than the GeForce GTX 280. (explain)

GeForce GTX 660 Ti 102480 Mtexels/sec
GeForce GTX 280 48160 Mtexels/sec
Difference: 54320 (113%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 660 Ti is superior to the GeForce GTX 280, though not by far. (explain)

GeForce GTX 660 Ti 21960 Mpixels/sec
GeForce GTX 280 19264 Mpixels/sec
Difference: 2696 (14%)

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 280

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 280 GeForce GTX 660 Ti
Manufacturer nVidia nVidia
Year June 17, 2008 August 2012
Code Name G200 GK104
Memory 1024 MB 2048 MB
Core Speed 602 MHz 915 MHz
Memory Speed 2214 MHz 6000 MHz
Power (Max TDP) 236 watts 150 watts
Bandwidth 141696 MB/sec 144000 MB/sec
Texel Rate 48160 Mtexels/sec 102480 Mtexels/sec
Pixel Rate 19264 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 65 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 largest amount of data (in units of MB per second) that can be moved across the external memory interface in one second. It is worked out by multiplying the interface width by the speed of its memory. In the case of DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

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GeForce GTX 280

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.

Comments

One Response to “GeForce GTX 280 vs GeForce GTX 660 Ti”
Mike'm says:

Looks like a decent upgrade.

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