Radeon R9 295X2 vs Radeon RX 6900 XT

Intro

Compare that to the Radeon RX 6900 XT, which features a clock frequency of 1825 MHz and a GDDR6 memory frequency of 2000 MHz. It also features a 256-bit memory bus, and makes use of a 7 nm design. It is comprised of 5120 SPUs, 320 Texture Address Units, and 128 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6900 XT		300 Watts
Radeon R9 295X2		500 Watts
	Difference: 200 Watts (67%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 295X2 will be 22% faster than the Radeon RX 6900 XT overall, because of its greater bandwidth. (explain)

Radeon R9 295X2		640000 MB/sec
Radeon RX 6900 XT		524288 MB/sec
	Difference: 115712 (22%)

Texel Rate

The Radeon RX 6900 XT is much (approximately 63%) faster with regards to texture filtering than the Radeon R9 295X2. (explain)

Radeon RX 6900 XT		584000 Mtexels/sec
Radeon R9 295X2		358336 Mtexels/sec
	Difference: 225664 (63%)

Pixel Rate

The Radeon RX 6900 XT is a lot (approximately 79%) better at full screen anti-aliasing than the Radeon R9 295X2, and also will be capable of handling higher screen resolutions without losing too much performance. (explain)

Radeon RX 6900 XT		233600 Mpixels/sec
Radeon R9 295X2		130304 Mpixels/sec
	Difference: 103296 (79%)

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: Memory bandwidth is the max amount of information (measured in MB per second) that can be transported over the external memory interface within a second. It's worked out by multiplying the card's bus width by the speed of its memory. If it uses DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This figure is worked out 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 video card will be at handling 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 write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.