GeForce GTX 465 vs GeForce GTX 660

Intro

Compare all of that to the GeForce GTX 660, which makes use of a 28 nm design. nVidia has clocked the core speed at 980 MHz. The GDDR5 RAM works at a frequency of 1502 MHz on this particular model. It features 960 SPUs along with 80 TAUs and 24 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 660		140 Watts
GeForce GTX 465		200 Watts
	Difference: 60 Watts (43%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 660 should be 41% faster than the GeForce GTX 465 overall, due to its higher data rate. (explain)

GeForce GTX 660		144192 MB/sec
GeForce GTX 465		102592 MB/sec
	Difference: 41600 (41%)

Texel Rate

The GeForce GTX 660 will be a lot (approximately 194%) more effective at AF than the GeForce GTX 465. (explain)

GeForce GTX 660		78400 Mtexels/sec
GeForce GTX 465		26708 Mtexels/sec
	Difference: 51692 (194%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 660 is the winner, by a large margin. (explain)

GeForce GTX 660		23520 Mpixels/sec
GeForce GTX 465		19424 Mpixels/sec
	Difference: 4096 (21%)

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

Specifications

Memory Bandwidth: Bandwidth is the max amount of information (counted in megabytes per second) that can be moved over the external memory interface in one second. It's worked out by multiplying the bus width by the speed of its memory. In the case of DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are 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 video 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 amount of pixels that the graphics chip can possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel 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 reach the maximum fill rate.