GeForce 8400 GS 512MB vs GeForce RTX 2080 SUPER

Intro

Compare all that to the GeForce RTX 2080 SUPER, which comes with a core clock speed of 1650 MHz and a GDDR6 memory speed of 1937 MHz. It also makes use of a 256-bit memory bus, and makes use of a 12 nm design. It features 3072 SPUs, 192 Texture Address Units, and 64 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8400 GS 512MB		40 Watts
GeForce RTX 2080 SUPER		250 Watts
	Difference: 210 Watts (525%)

Memory Bandwidth

The GeForce RTX 2080 SUPER should theoretically be quite a bit faster than the GeForce 8400 GS 512MB overall. (explain)

GeForce RTX 2080 SUPER		507904 MB/sec
GeForce 8400 GS 512MB		6400 MB/sec
	Difference: 501504 (7836%)

Texel Rate

The GeForce RTX 2080 SUPER will be much (approximately 5992%) better at anisotropic filtering than the GeForce 8400 GS 512MB. (explain)

GeForce RTX 2080 SUPER		316800 Mtexels/sec
GeForce 8400 GS 512MB		5200 Mtexels/sec
	Difference: 311600 (5992%)

Pixel Rate

The GeForce RTX 2080 SUPER will be much (more or less 3962%) better at full screen anti-aliasing than the GeForce 8400 GS 512MB, and also able to handle higher resolutions better. (explain)

GeForce RTX 2080 SUPER		105600 Mpixels/sec
GeForce 8400 GS 512MB		2600 Mpixels/sec
	Difference: 103000 (3962%)

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 (in units of megabytes per second) that can be transported past the external memory interface in one second. It is calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This figure 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 handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could 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 Render Output Units by the the core 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 fill rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.