GeForce GTS 450 1GB vs GeForce GTX 1630

Intro

Compare those specs to the GeForce GTX 1630, which has a core clock frequency of 1740 MHz and a GDDR6 memory frequency of 1500 MHz. It also uses a 64-bit memory bus, and makes use of a 12 nm design. It is comprised of 512 SPUs, 32 TAUs, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1630		75 Watts
GeForce GTS 450 1GB		106 Watts
	Difference: 31 Watts (41%)

Memory Bandwidth

Performance-wise, the GeForce GTX 1630 should theoretically be much superior to the GeForce GTS 450 1GB overall. (explain)

GeForce GTX 1630		98304 MB/sec
GeForce GTS 450 1GB		57728 MB/sec
	Difference: 40576 (70%)

Texel Rate

The GeForce GTX 1630 is quite a bit (approximately 122%) more effective at anisotropic filtering than the GeForce GTS 450 1GB. (explain)

GeForce GTX 1630		55680 Mtexels/sec
GeForce GTS 450 1GB		25056 Mtexels/sec
	Difference: 30624 (122%)

Pixel Rate

The GeForce GTX 1630 will be a lot (approximately 122%) more effective at anti-aliasing than the GeForce GTS 450 1GB, and also should be able to handle higher screen resolutions more effectively. (explain)

GeForce GTX 1630		27840 Mpixels/sec
GeForce GTS 450 1GB		12528 Mpixels/sec
	Difference: 15312 (122%)

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 maximum amount of information (counted in MB per second) that can be transported over the external memory interface in one second. It is calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster 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 can be processed per second. This figure is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

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