GeForce GTS 450 1GB vs GeForce RTX 2080 SUPER

Intro

Compare those specifications to the GeForce RTX 2080 SUPER, which has GPU clock speed of 1650 MHz, and 8192 MB of GDDR6 memory running at 1937 MHz through a 256-bit bus. It also is comprised of 3072 SPUs, 192 TAUs, and 64 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTS 450 1GB		106 Watts
GeForce RTX 2080 SUPER		250 Watts
	Difference: 144 Watts (136%)

Memory Bandwidth

Performance-wise, the GeForce RTX 2080 SUPER should theoretically be quite a bit superior to the GeForce GTS 450 1GB in general. (explain)

GeForce RTX 2080 SUPER		507904 MB/sec
GeForce GTS 450 1GB		57728 MB/sec
	Difference: 450176 (780%)

Texel Rate

The GeForce RTX 2080 SUPER is much (approximately 1164%) more effective at AF than the GeForce GTS 450 1GB. (explain)

GeForce RTX 2080 SUPER		316800 Mtexels/sec
GeForce GTS 450 1GB		25056 Mtexels/sec
	Difference: 291744 (1164%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce RTX 2080 SUPER is the winner, by far. (explain)

GeForce RTX 2080 SUPER		105600 Mpixels/sec
GeForce GTS 450 1GB		12528 Mpixels/sec
	Difference: 93072 (743%)

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 max amount of data (counted in MB per second) that can be moved over the external memory interface within a second. It's worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the 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 is calculated by multiplying the total number of texture units by the core speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the the core 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 fill rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.