Geforce GTX 780 vs Radeon RX 6650 XT

Intro

Compare those specifications to the Radeon RX 6650 XT, which makes use of a 7 nm design. AMD has clocked the core frequency at 2055 MHz. The GDDR6 memory runs at a speed of 2190 MHz on this specific model. It features 2048 SPUs along with 128 Texture Address Units and 64 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6650 XT		176 Watts
Geforce GTX 780		250 Watts
	Difference: 74 Watts (42%)

Memory Bandwidth

Theoretically speaking, the Geforce GTX 780 is 0% quicker than the Radeon RX 6650 XT overall, due to its greater bandwidth. (explain)

Geforce GTX 780		288384 MB/sec
Radeon RX 6650 XT		287072 MB/sec
	Difference: 1312 (0%)

Texel Rate

The Radeon RX 6650 XT is much (more or less 59%) faster with regards to AF than the Geforce GTX 780. (explain)

Radeon RX 6650 XT		263040 Mtexels/sec
Geforce GTX 780		165696 Mtexels/sec
	Difference: 97344 (59%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon RX 6650 XT is a better choice, and very much so. (explain)

Radeon RX 6650 XT		131520 Mpixels/sec
Geforce GTX 780		41424 Mpixels/sec
	Difference: 90096 (217%)

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 data (in units of megabytes per second) that can be moved across the external memory interface in a second. The number is calculated by multiplying the interface width by the speed of its memory. If it uses DDR memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the 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 amount of 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 clock speed of the chip. The higher this number, the better the video 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 that the graphics chip could possibly write to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.