GeForce GTS 450 1GB vs GeForce RTX 3080

Intro

Compare those specs to the GeForce RTX 3080, which has core clock speeds of 1440 MHz on the GPU, and 1188 MHz on the 10240 MB of GDDR6X RAM. It features 8704 SPUs as well as 272 Texture Address Units and 96 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTS 450 1GB		106 Watts
GeForce RTX 3080		320 Watts
	Difference: 214 Watts (202%)

Memory Bandwidth

Theoretically speaking, the GeForce RTX 3080 should be much faster than the GeForce GTS 450 1GB in general. (explain)

GeForce RTX 3080		778547 MB/sec
GeForce GTS 450 1GB		57728 MB/sec
	Difference: 720819 (1249%)

Texel Rate

The GeForce RTX 3080 will be quite a bit (about 1463%) more effective at anisotropic filtering than the GeForce GTS 450 1GB. (explain)

GeForce RTX 3080		391680 Mtexels/sec
GeForce GTS 450 1GB		25056 Mtexels/sec
	Difference: 366624 (1463%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce RTX 3080 is the winner, by far. (explain)

GeForce RTX 3080		138240 Mpixels/sec
GeForce GTS 450 1GB		12528 Mpixels/sec
	Difference: 125712 (1003%)

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 within a second. It is calculated by multiplying the bus width by its memory clock speed. In the case of DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This is worked out by multiplying the total number 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 handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

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