Geforce GTX 780 vs Radeon RX 6600

Intro

Compare those specifications to the Radeon RX 6600, which makes use of a 7 nm design. AMD has set the core speed at 1626 MHz. The GDDR6 memory runs at a frequency of 1750 MHz on this card. It features 1792 SPUs as well as 112 Texture Address Units and 64 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6600		132 Watts
Geforce GTX 780		250 Watts
	Difference: 118 Watts (89%)

Memory Bandwidth

Theoretically speaking, the Geforce GTX 780 should be 26% faster than the Radeon RX 6600 in general, due to its greater bandwidth. (explain)

Geforce GTX 780		288384 MB/sec
Radeon RX 6600		229376 MB/sec
	Difference: 59008 (26%)

Texel Rate

The Radeon RX 6600 should be just a bit (approximately 10%) faster with regards to anisotropic filtering than the Geforce GTX 780. (explain)

Radeon RX 6600		182112 Mtexels/sec
Geforce GTX 780		165696 Mtexels/sec
	Difference: 16416 (10%)

Pixel Rate

The Radeon RX 6600 will be quite a bit (about 151%) more effective at anti-aliasing than the Geforce GTX 780, and should be capable of handling higher resolutions while still performing well. (explain)

Radeon RX 6600		104064 Mpixels/sec
Geforce GTX 780		41424 Mpixels/sec
	Difference: 62640 (151%)

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 max amount of data (measured in megabytes per second) that can be transferred across the external memory interface in a second. The number is worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

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