GeForce GTX 1630 vs GeForce GTX 870M

Intro

Compare all that to the GeForce GTX 870M, which has GPU core speed of 941 MHz, and 3072 MB of GDDR5 RAM set to run at 1000 MHz through a 192-bit bus. It also features 1344 SPUs, 112 TAUs, and 24 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1630		75 Watts
GeForce GTX 870M		110 Watts
	Difference: 35 Watts (47%)

Memory Bandwidth

The GeForce GTX 1630 should theoretically perform a bit faster than the GeForce GTX 870M in general. (explain)

GeForce GTX 1630		98304 MB/sec
GeForce GTX 870M		96000 MB/sec
	Difference: 2304 (2%)

Texel Rate

The GeForce GTX 870M will be much (more or less 89%) more effective at texture filtering than the GeForce GTX 1630. (explain)

GeForce GTX 870M		105392 Mtexels/sec
GeForce GTX 1630		55680 Mtexels/sec
	Difference: 49712 (89%)

Pixel Rate

The GeForce GTX 1630 is quite a bit (more or less 23%) more effective at AA than the GeForce GTX 870M, and also capable of handling higher screen resolutions without losing too much performance. (explain)

GeForce GTX 1630		27840 Mpixels/sec
GeForce GTX 870M		22584 Mpixels/sec
	Difference: 5256 (23%)

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: Memory bandwidth is the largest amount of data (in units of MB per second) that can be transported past the external memory interface in a second. It is calculated by multiplying the card's bus width by its memory speed. In the case of DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster 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 are applied in one second. This is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the 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 maximum amount of pixels the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.