GeForce GTX 1630 vs GeForce GTX 850M

Intro

Compare those specifications to the GeForce GTX 850M, which makes use of a 28 nm design. nVidia has clocked the core frequency at 876 MHz. The DDR3 RAM is set to run at a frequency of 1000 MHz on this particular card. It features 640 SPUs along with 40 Texture Address Units and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 850M		40 Watts
GeForce GTX 1630		75 Watts
	Difference: 35 Watts (88%)

Memory Bandwidth

In theory, the GeForce GTX 1630 will be 207% quicker than the GeForce GTX 850M overall, due to its higher bandwidth. (explain)

GeForce GTX 1630		98304 MB/sec
GeForce GTX 850M		32000 MB/sec
	Difference: 66304 (207%)

Texel Rate

The GeForce GTX 1630 will be quite a bit (about 59%) faster with regards to texture filtering than the GeForce GTX 850M. (explain)

GeForce GTX 1630		55680 Mtexels/sec
GeForce GTX 850M		35040 Mtexels/sec
	Difference: 20640 (59%)

Pixel Rate

The GeForce GTX 1630 will be much (approximately 99%) better at full screen anti-aliasing than the GeForce GTX 850M, and also able to handle higher screen resolutions more effectively. (explain)

GeForce GTX 1630		27840 Mpixels/sec
GeForce GTX 850M		14016 Mpixels/sec
	Difference: 13824 (99%)

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 (in units of MB per second) that can be transferred past the external memory interface in a second. It's calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range 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 worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The better this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to the local memory per 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 - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.