Geforce GTX 780 vs Radeon RX 6500 XT

Intro

Compare all of that to the Radeon RX 6500 XT, which comes with a clock frequency of 2200 MHz and a GDDR6 memory speed of 2250 MHz. It also features a 64-bit bus, and uses a 6 nm design. It is comprised of 1024 SPUs, 64 TAUs, and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6500 XT		107 Watts
Geforce GTX 780		250 Watts
	Difference: 143 Watts (134%)

Memory Bandwidth

Performance-wise, the Geforce GTX 780 should theoretically be quite a bit superior to the Radeon RX 6500 XT overall. (explain)

Geforce GTX 780		288384 MB/sec
Radeon RX 6500 XT		147456 MB/sec
	Difference: 140928 (96%)

Texel Rate

The Geforce GTX 780 is a small bit (about 18%) better at AF than the Radeon RX 6500 XT. (explain)

Geforce GTX 780		165696 Mtexels/sec
Radeon RX 6500 XT		140800 Mtexels/sec
	Difference: 24896 (18%)

Pixel Rate

The Radeon RX 6500 XT should be a lot (about 70%) better at full screen anti-aliasing than the Geforce GTX 780, and able to handle higher screen resolutions more effectively. (explain)

Radeon RX 6500 XT		70400 Mpixels/sec
Geforce GTX 780		41424 Mpixels/sec
	Difference: 28976 (70%)

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 (in units of megabytes per second) that can be transferred over the external memory interface in one second. It's worked out by multiplying the interface width by its memory speed. If it uses DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, 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 amount of texture map elements (texels) that can be applied in one second. This figure is worked out by multiplying the total texture units by the core clock speed of the chip. The better the texel rate, the better the video 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 most pixels that the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.