GeForce GTX 285 1GB vs GeForce RTX 2080

Intro

Compare all of that to the GeForce RTX 2080, which features a clock frequency of 1515 MHz and a GDDR6 memory speed of 1750 MHz. It also uses a 256-bit memory bus, and makes use of a 12 nm design. It is made up of 2944 SPUs, 184 TAUs, and 64 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 285 1GB		204 Watts
GeForce RTX 2080		215 Watts
	Difference: 11 Watts (5%)

Memory Bandwidth

The GeForce RTX 2080, in theory, should be quite a bit faster than the GeForce GTX 285 1GB in general. (explain)

GeForce RTX 2080		458752 MB/sec
GeForce GTX 285 1GB		158976 MB/sec
	Difference: 299776 (189%)

Texel Rate

The GeForce RTX 2080 is quite a bit (about 438%) faster with regards to texture filtering than the GeForce GTX 285 1GB. (explain)

GeForce RTX 2080		278760 Mtexels/sec
GeForce GTX 285 1GB		51840 Mtexels/sec
	Difference: 226920 (438%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce RTX 2080 is a better choice, by a large margin. (explain)

GeForce RTX 2080		96960 Mpixels/sec
GeForce GTX 285 1GB		20736 Mpixels/sec
	Difference: 76224 (368%)

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 largest amount of information (counted in megabytes per second) that can be moved across the external memory interface within a second. It is calculated by multiplying the card's interface width by the speed of its memory. In the case of DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This number is calculated by multiplying the total number of texture units by the core 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 processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the the core speed of the card. 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 also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.