GeForce GTX 1630 vs GeForce GTX 980M

Intro

Compare all that to the GeForce GTX 980M, which has a clock speed of 1038 MHz and a GDDR5 memory frequency of 1000 MHz. It also makes use of a 256-bit bus, and makes use of a 28 nm design. It is comprised of 1536 SPUs, 96 Texture Address Units, and 64 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1630		75 Watts
GeForce GTX 980M		100 Watts
	Difference: 25 Watts (33%)

Memory Bandwidth

In theory, the GeForce GTX 980M is 30% faster than the GeForce GTX 1630 overall, due to its greater data rate. (explain)

GeForce GTX 980M		128000 MB/sec
GeForce GTX 1630		98304 MB/sec
	Difference: 29696 (30%)

Texel Rate

The GeForce GTX 980M will be quite a bit (approximately 79%) more effective at anisotropic filtering than the GeForce GTX 1630. (explain)

GeForce GTX 980M		99648 Mtexels/sec
GeForce GTX 1630		55680 Mtexels/sec
	Difference: 43968 (79%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 980M is a better choice, and very much so. (explain)

GeForce GTX 980M		66432 Mpixels/sec
GeForce GTX 1630		27840 Mpixels/sec
	Difference: 38592 (139%)

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 maximum amount of information (measured in MB per second) that can be transported over the external memory interface in one second. It is worked out by multiplying the bus width by the speed of its memory. If it uses DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. 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 texture units of the card by the core clock speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.