Radeon HD 6750 1GB vs Radeon RX 460

Intro

Compare those specs to the Radeon RX 460, which comes with a core clock frequency of 1090 MHz and a GDDR5 memory frequency of 1750 MHz. It also makes use of a 128-bit memory bus, and makes use of a 14 nm design. It is made up of 896 SPUs, 56 TAUs, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 460		75 Watts
Radeon HD 6750 1GB		86 Watts
	Difference: 11 Watts (15%)

Memory Bandwidth

In theory, the Radeon RX 460 should be quite a bit faster than the Radeon HD 6750 1GB overall. (explain)

Radeon RX 460		112000 MB/sec
Radeon HD 6750 1GB		64000 MB/sec
	Difference: 48000 (75%)

Texel Rate

The Radeon RX 460 is a lot (approximately 134%) more effective at AF than the Radeon HD 6750 1GB. (explain)

Radeon RX 460		61040 Mtexels/sec
Radeon HD 6750 1GB		26100 Mtexels/sec
	Difference: 34940 (134%)

Pixel Rate

The Radeon RX 460 should be quite a bit (more or less 50%) better at FSAA than the Radeon HD 6750 1GB, and should be capable of handling higher resolutions while still performing well. (explain)

Radeon RX 460		17440 Mpixels/sec
Radeon HD 6750 1GB		11600 Mpixels/sec
	Difference: 5840 (50%)

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 (counted in MB per second) that can be transferred past the external memory interface within a second. It's worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR type memory, it should 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 anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This number 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 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 could possibly record to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.