Radeon HD 4850 X2 1GB vs Radeon RX 6500 XT

Intro

Compare those specifications to the Radeon RX 6500 XT, which comes with a core clock speed of 2200 MHz and a GDDR6 memory speed of 2250 MHz. It also makes use of a 64-bit bus, and makes use of a 6 nm design. It is made up of 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
Radeon HD 4850 X2 1GB		250 Watts
	Difference: 143 Watts (134%)

Memory Bandwidth

The Radeon RX 6500 XT should in theory be just a bit faster than the Radeon HD 4850 X2 1GB overall. (explain)

Radeon RX 6500 XT		147456 MB/sec
Radeon HD 4850 X2 1GB		127104 MB/sec
	Difference: 20352 (16%)

Texel Rate

The Radeon RX 6500 XT should be a lot (about 182%) better at texture filtering than the Radeon HD 4850 X2 1GB. (explain)

Radeon RX 6500 XT		140800 Mtexels/sec
Radeon HD 4850 X2 1GB		50000 Mtexels/sec
	Difference: 90800 (182%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon RX 6500 XT is superior to the Radeon HD 4850 X2 1GB, and very much so. (explain)

Radeon RX 6500 XT		70400 Mpixels/sec
Radeon HD 4850 X2 1GB		20000 Mpixels/sec
	Difference: 50400 (252%)

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 largest amount of data (measured in megabytes per second) that can be transferred over the external memory interface in one second. It is worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This figure is calculated by multiplying the total amount of texture units by the core speed of the chip. The better 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 maximum amount of pixels the video card can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.