GeForce GTX 1630 vs GeForce GTX 650

Intro

Compare those specifications to the GeForce GTX 650, which comes with GPU clock speed of 1058 MHz, and 1024 MB of GDDR5 memory set to run at 1250 MHz through a 128-bit bus. It also features 384 Stream Processors, 32 TAUs, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650		64 Watts
GeForce GTX 1630		75 Watts
	Difference: 11 Watts (17%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 1630 is 23% faster than the GeForce GTX 650 overall, because of its greater bandwidth. (explain)

GeForce GTX 1630		98304 MB/sec
GeForce GTX 650		80000 MB/sec
	Difference: 18304 (23%)

Texel Rate

The GeForce GTX 1630 is quite a bit (approximately 64%) better at texture filtering than the GeForce GTX 650. (explain)

GeForce GTX 1630		55680 Mtexels/sec
GeForce GTX 650		33856 Mtexels/sec
	Difference: 21824 (64%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 1630 is the winner, by a large margin. (explain)

GeForce GTX 1630		27840 Mpixels/sec
GeForce GTX 650		16928 Mpixels/sec
	Difference: 10912 (64%)

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 (counted in megabytes per second) that can be transported across the external memory interface within a second. The number is worked out by multiplying the interface width by its memory speed. In the case of DDR type RAM, it must be multiplied by 2 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 higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.