GeForce GTX 650 Ti 2GB vs GeForce RTX 2080

Intro

Compare all of that to the GeForce RTX 2080, which has a core clock frequency of 1515 MHz and a GDDR6 memory frequency 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 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650 Ti 2GB		110 Watts
GeForce RTX 2080		215 Watts
	Difference: 105 Watts (95%)

Memory Bandwidth

Theoretically speaking, the GeForce RTX 2080 should perform quite a bit faster than the GeForce GTX 650 Ti 2GB in general. (explain)

GeForce RTX 2080		458752 MB/sec
GeForce GTX 650 Ti 2GB		86400 MB/sec
	Difference: 372352 (431%)

Texel Rate

The GeForce RTX 2080 should be much (approximately 369%) better at anisotropic filtering than the GeForce GTX 650 Ti 2GB. (explain)

GeForce RTX 2080		278760 Mtexels/sec
GeForce GTX 650 Ti 2GB		59392 Mtexels/sec
	Difference: 219368 (369%)

Pixel Rate

The GeForce RTX 2080 will be quite a bit (approximately 553%) faster with regards to AA than the GeForce GTX 650 Ti 2GB, and capable of handling higher resolutions while still performing well. (explain)

GeForce RTX 2080		96960 Mpixels/sec
GeForce GTX 650 Ti 2GB		14848 Mpixels/sec
	Difference: 82112 (553%)

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 largest amount of information (measured in MB per second) that can be transported over the external memory interface within a second. The number is calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This number is worked out by multiplying the total number of texture units by the core speed of the chip. The better this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.