Radeon HD 7770 vs Radeon RX 6750 XT

Intro

Compare those specifications to the Radeon RX 6750 XT, which features a GPU core clock speed of 2150 MHz, and 12288 MB of GDDR6 memory running at 2250 MHz through a 192-bit bus. It also is made up of 2560 Stream Processors, 160 TAUs, and 64 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7770		80 Watts
Radeon RX 6750 XT		250 Watts
	Difference: 170 Watts (213%)

Memory Bandwidth

In theory, the Radeon RX 6750 XT is 514% quicker than the Radeon HD 7770 overall, because of its greater data rate. (explain)

Radeon RX 6750 XT		442368 MB/sec
Radeon HD 7770		72000 MB/sec
	Difference: 370368 (514%)

Texel Rate

The Radeon RX 6750 XT should be quite a bit (more or less 760%) faster with regards to AF than the Radeon HD 7770. (explain)

Radeon RX 6750 XT		344000 Mtexels/sec
Radeon HD 7770		40000 Mtexels/sec
	Difference: 304000 (760%)

Pixel Rate

The Radeon RX 6750 XT is a lot (more or less 760%) more effective at FSAA than the Radeon HD 7770, and also will be capable of handling higher resolutions more effectively. (explain)

Radeon RX 6750 XT		137600 Mpixels/sec
Radeon HD 7770		16000 Mpixels/sec
	Difference: 121600 (760%)

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: Bandwidth is the maximum amount of information (measured in MB per second) that can be transferred across the external memory interface in a second. It's worked out by multiplying the interface width by its memory speed. If the card has DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the 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 amount of texture map elements (texels) that are applied in one second. This figure is worked out by multiplying the total number 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 applied in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour 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 fill rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.