Radeon RX 5500 vs Radeon RX 7900 XTX

Intro

Compare all of that to the Radeon RX 7900 XTX, which has a core clock speed of 1855 MHz and a GDDR6 memory speed of 2500 MHz. It also uses a 384-bit memory bus, and uses a 5 nm design. It features 6144 SPUs, 384 TAUs, and 192 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 5500		150 Watts
Radeon RX 7900 XTX		355 Watts
	Difference: 205 Watts (137%)

Memory Bandwidth

As far as performance goes, the Radeon RX 7900 XTX should theoretically be quite a bit superior to the Radeon RX 5500 overall. (explain)

Radeon RX 7900 XTX		983040 MB/sec
Radeon RX 5500		229376 MB/sec
	Difference: 753664 (329%)

Texel Rate

The Radeon RX 7900 XTX should be much (more or less 385%) faster with regards to anisotropic filtering than the Radeon RX 5500. (explain)

Radeon RX 7900 XTX		712320 Mtexels/sec
Radeon RX 5500		146960 Mtexels/sec
	Difference: 565360 (385%)

Pixel Rate

The Radeon RX 7900 XTX will be much (more or less 566%) faster with regards to anti-aliasing than the Radeon RX 5500, and will be capable of handling higher screen resolutions without losing too much performance. (explain)

Radeon RX 7900 XTX		356160 Mpixels/sec
Radeon RX 5500		53440 Mpixels/sec
	Difference: 302720 (566%)

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 maximum amount of data (measured in MB per second) that can be moved over the external memory interface within a second. It's worked out by multiplying the interface width by its memory speed. If the card has DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number 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 higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the the core 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 is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.