GeForce GTX 1630 vs GeForce GTX 660

Intro

Compare all that to the GeForce GTX 660, which comes with a core clock speed of 980 MHz and a GDDR5 memory speed of 1502 MHz. It also makes use of a 192-bit bus, and makes use of a 28 nm design. It is made up of 960 SPUs, 80 TAUs, and 24 ROPs.

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

Performance-wise, the GeForce GTX 660 should theoretically be quite a bit superior to the GeForce GTX 1630 overall. (explain)

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

Texel Rate

The GeForce GTX 660 is a lot (more or less 41%) faster with regards to 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

The GeForce GTX 1630 should be a bit (about 18%) better at full screen anti-aliasing than the GeForce GTX 660, and also will be capable of handling higher resolutions without slowing down too much. (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 largest amount of information (counted in MB per second) that can be transferred over the external memory interface within a second. It's calculated by multiplying the card's interface width by its memory speed. If the card has DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.