Radeon HD 6750 1GB vs Radeon RX 480

Intro

Compare those specifications to the Radeon RX 480, which uses a 14 nm design. AMD has set the core frequency at 1120 MHz. The GDDR5 RAM runs at a frequency of 2000 MHz on this particular card. It features 2304 SPUs as well as 144 Texture Address Units and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6750 1GB		86 Watts
Radeon RX 480		150 Watts
	Difference: 64 Watts (74%)

Memory Bandwidth

The Radeon RX 480 should in theory perform much faster than the Radeon HD 6750 1GB in general. (explain)

Radeon RX 480		262144 MB/sec
Radeon HD 6750 1GB		64000 MB/sec
	Difference: 198144 (310%)

Texel Rate

The Radeon RX 480 should be a lot (about 518%) faster with regards to anisotropic filtering than the Radeon HD 6750 1GB. (explain)

Radeon RX 480		161280 Mtexels/sec
Radeon HD 6750 1GB		26100 Mtexels/sec
	Difference: 135180 (518%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon RX 480 is the winner, by a large margin. (explain)

Radeon RX 480		35840 Mpixels/sec
Radeon HD 6750 1GB		11600 Mpixels/sec
	Difference: 24240 (209%)

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 max amount of information (measured in megabytes per second) that can be moved across the external memory interface in one 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 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher 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 number of texture map elements (texels) that are applied in one second. This is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.