GeForce GTX 660 Ti vs Radeon RX 7900 XT

Intro

Compare all that to the Radeon RX 7900 XT, which has a clock speed of 1500 MHz and a GDDR6 memory speed of 2500 MHz. It also makes use of a 320-bit bus, and uses a 5 nm design. It is made up of 5376 SPUs, 336 TAUs, and 192 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 660 Ti		150 Watts
Radeon RX 7900 XT		300 Watts
	Difference: 150 Watts (100%)

Memory Bandwidth

The Radeon RX 7900 XT should in theory be a lot faster than the GeForce GTX 660 Ti overall. (explain)

Radeon RX 7900 XT		819200 MB/sec
GeForce GTX 660 Ti		144000 MB/sec
	Difference: 675200 (469%)

Texel Rate

The Radeon RX 7900 XT should be much (about 392%) faster with regards to AF than the GeForce GTX 660 Ti. (explain)

Radeon RX 7900 XT		504000 Mtexels/sec
GeForce GTX 660 Ti		102480 Mtexels/sec
	Difference: 401520 (392%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon RX 7900 XT is the winner, and very much so. (explain)

Radeon RX 7900 XT		288000 Mpixels/sec
GeForce GTX 660 Ti		21960 Mpixels/sec
	Difference: 266040 (1211%)

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 data (counted in megabytes per second) that can be moved across the external memory interface within a second. It is worked out by multiplying the card's interface width by its memory speed. If the card has DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly write to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.