GeForce 9800 GX2 vs Radeon RX 6500 XT

Intro

Compare all that to the Radeon RX 6500 XT, which comes with a clock speed of 2200 MHz and a GDDR6 memory speed of 2250 MHz. It also uses a 64-bit memory bus, and uses a 6 nm design. It features 1024 SPUs, 64 TAUs, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6500 XT		107 Watts
GeForce 9800 GX2		197 Watts
	Difference: 90 Watts (84%)

Memory Bandwidth

As far as performance goes, the Radeon RX 6500 XT should theoretically be a bit better than the GeForce 9800 GX2 in general. (explain)

Radeon RX 6500 XT		147456 MB/sec
GeForce 9800 GX2		128000 MB/sec
	Difference: 19456 (15%)

Texel Rate

The Radeon RX 6500 XT will be quite a bit (approximately 83%) more effective at anisotropic filtering than the GeForce 9800 GX2. (explain)

Radeon RX 6500 XT		140800 Mtexels/sec
GeForce 9800 GX2		76800 Mtexels/sec
	Difference: 64000 (83%)

Pixel Rate

The Radeon RX 6500 XT is much (approximately 267%) faster with regards to anti-aliasing than the GeForce 9800 GX2, and will be able to handle higher screen resolutions while still performing well. (explain)

Radeon RX 6500 XT		70400 Mpixels/sec
GeForce 9800 GX2		19200 Mpixels/sec
	Difference: 51200 (267%)

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 max amount of data (in units of MB per second) that can be transported over the external memory interface in a second. The number is calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This is worked out by multiplying the total texture units of the card by the core speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.