GeForce GTX 1630 vs GeForce GTX 870M

Intro

Compare those specifications to the GeForce GTX 870M, which comes with 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 is made up of 1344 Stream Processors, 112 Texture Address Units, and 24 ROPs.

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, in theory, should be just a bit faster than the GeForce GTX 870M overall. (explain)

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

Texel Rate

The GeForce GTX 870M will be a lot (approximately 89%) better at AF than the GeForce GTX 1630. (explain)

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

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 1630 is superior to the GeForce GTX 870M, and very much so. (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: Bandwidth is the largest amount of data (in units of MB per second) that can be moved past the external memory interface within a second. The number is worked out by multiplying the card's interface width by its memory speed. If the card has DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output 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.