GeForce RTX 3090 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 set the core speed at 1855 MHz. The GDDR6 RAM is set to run at a frequency of 2500 MHz on this particular card. It features 6144 SPUs along with 384 TAUs and 192 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce RTX 3090		350 Watts
Radeon RX 7900 XTX		355 Watts
	Difference: 5 Watts (1%)

Memory Bandwidth

In theory, the Radeon RX 7900 XTX should perform just a bit faster than the GeForce RTX 3090 in general. (explain)

Radeon RX 7900 XTX		983040 MB/sec
GeForce RTX 3090		958668 MB/sec
	Difference: 24372 (3%)

Texel Rate

The Radeon RX 7900 XTX is a lot (approximately 56%) faster with regards to texture filtering than the GeForce RTX 3090. (explain)

Radeon RX 7900 XTX		712320 Mtexels/sec
GeForce RTX 3090		457560 Mtexels/sec
	Difference: 254760 (56%)

Pixel Rate

If using a high resolution is important to you, then the Radeon RX 7900 XTX is superior to the GeForce RTX 3090, and very much so. (explain)

Radeon RX 7900 XTX		356160 Mpixels/sec
GeForce RTX 3090		156240 Mpixels/sec
	Difference: 199920 (128%)

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 information (measured in MB per second) that can be transported past the external memory interface in one second. It is worked out by multiplying the bus width by its memory clock speed. If the card has DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster 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 number of texture map elements (texels) that can be processed in one second. This is worked out by multiplying the total texture units by the core speed of the chip. The better this number, the better the 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 could possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour 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 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.