GeForce GTX 1630 vs GeForce GTX 660

Intro

Compare those specifications to the GeForce GTX 660, which makes use of a 28 nm design. nVidia has set the core speed at 980 MHz. The GDDR5 memory runs at a frequency of 1502 MHz on this particular card. It features 960 SPUs along with 80 TAUs and 24 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1630		75 Watts
GeForce GTX 660		140 Watts
	Difference: 65 Watts (87%)

Memory Bandwidth

The GeForce GTX 660 should in theory be quite a bit faster than the GeForce GTX 1630 in general. (explain)

GeForce GTX 660		144192 MB/sec
GeForce GTX 1630		98304 MB/sec
	Difference: 45888 (47%)

Texel Rate

The GeForce GTX 660 will be quite a bit (about 41%) more effective at texture filtering than the GeForce GTX 1630. (explain)

GeForce GTX 660		78400 Mtexels/sec
GeForce GTX 1630		55680 Mtexels/sec
	Difference: 22720 (41%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 1630 is a better choice, not by a very large margin though. (explain)

GeForce GTX 1630		27840 Mpixels/sec
GeForce GTX 660		23520 Mpixels/sec
	Difference: 4320 (18%)

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 data (counted in megabytes per second) that can be transferred past the external memory interface within a second. It is calculated by multiplying the bus width by its memory clock speed. If it uses DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster 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 is calculated by multiplying the total texture units by the core clock 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 processed in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.