Radeon RX 6600 vs Radeon RX 7900 XTX

Intro

Compare all of that to the Radeon RX 7900 XTX, which makes use of a 5 nm design. AMD has clocked the core speed at 1855 MHz. The GDDR6 memory works at a speed of 2500 MHz on this specific card. It features 6144 SPUs along with 384 Texture Address Units and 192 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6600		132 Watts
Radeon RX 7900 XTX		355 Watts
	Difference: 223 Watts (169%)

Memory Bandwidth

In theory, the Radeon RX 7900 XTX should perform much faster than the Radeon RX 6600 overall. (explain)

Radeon RX 7900 XTX		983040 MB/sec
Radeon RX 6600		229376 MB/sec
	Difference: 753664 (329%)

Texel Rate

The Radeon RX 7900 XTX should be quite a bit (more or less 291%) faster with regards to texture filtering than the Radeon RX 6600. (explain)

Radeon RX 7900 XTX		712320 Mtexels/sec
Radeon RX 6600		182112 Mtexels/sec
	Difference: 530208 (291%)

Pixel Rate

The Radeon RX 7900 XTX should be much (about 242%) more effective at AA than the Radeon RX 6600, and also capable of handling higher resolutions while still performing well. (explain)

Radeon RX 7900 XTX		356160 Mpixels/sec
Radeon RX 6600		104064 Mpixels/sec
	Difference: 252096 (242%)

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 max amount of data (counted in megabytes per second) that can be transferred past the external memory interface in one second. It's worked out by multiplying the card's interface width by its memory speed. If it uses DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to its local memory in a 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 drawing the pixels (image) on the screen. The actual pixel fill rate also depends on quite a few 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.