Radeon R9 295X2 vs Radeon RX 7900 XTX

Intro

Compare those specifications to the Radeon RX 7900 XTX, which uses a 5 nm design. AMD has set the core frequency at 1855 MHz. The GDDR6 memory runs at a speed of 2500 MHz on this card. It features 6144 SPUs as well as 384 Texture Address Units and 192 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 7900 XTX		355 Watts
Radeon R9 295X2		500 Watts
	Difference: 145 Watts (41%)

Memory Bandwidth

The Radeon RX 7900 XTX, in theory, should perform a lot faster than the Radeon R9 295X2 overall. (explain)

Radeon RX 7900 XTX		983040 MB/sec
Radeon R9 295X2		640000 MB/sec
	Difference: 343040 (54%)

Texel Rate

The Radeon RX 7900 XTX should be a lot (about 99%) better at AF than the Radeon R9 295X2. (explain)

Radeon RX 7900 XTX		712320 Mtexels/sec
Radeon R9 295X2		358336 Mtexels/sec
	Difference: 353984 (99%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon RX 7900 XTX is the winner, by a large margin. (explain)

Radeon RX 7900 XTX		356160 Mpixels/sec
Radeon R9 295X2		130304 Mpixels/sec
	Difference: 225856 (173%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the maximum amount of information (counted in MB per second) that can be transported over the external memory interface within a second. It is worked out by multiplying the card's interface width by its memory speed. If it uses DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, 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 applied in one second. This is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The better the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate 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 outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.