Radeon HD 6770 vs Radeon RX 6500 XT

Intro

Compare all that to the Radeon RX 6500 XT, which features a core clock speed of 2200 MHz and a GDDR6 memory speed of 2250 MHz. It also uses a 64-bit bus, and uses a 6 nm design. It is comprised of 1024 SPUs, 64 Texture Address Units, 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 6770		108 Watts
	Difference: 1 Watts (1%)

Memory Bandwidth

The Radeon RX 6500 XT, in theory, should perform a lot faster than the Radeon HD 6770 in general. (explain)

Radeon RX 6500 XT		147456 MB/sec
Radeon HD 6770		67200 MB/sec
	Difference: 80256 (119%)

Texel Rate

The Radeon RX 6500 XT should be a lot (more or less 291%) faster with regards to texture filtering than the Radeon HD 6770. (explain)

Radeon RX 6500 XT		140800 Mtexels/sec
Radeon HD 6770		36000 Mtexels/sec
	Difference: 104800 (291%)

Pixel Rate

If using a high resolution is important to you, then the Radeon RX 6500 XT is a better choice, and very much so. (explain)

Radeon RX 6500 XT		70400 Mpixels/sec
Radeon HD 6770		14400 Mpixels/sec
	Difference: 56000 (389%)

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 information (in units of megabytes per second) that can be transported across the external memory interface in a second. It's worked out by multiplying the 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 better the memory bandwidth, the better 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 texture map elements (texels) that can be applied per second. This is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to the 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 the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.