Radeon HD 5750 1GB vs Radeon RX 460

Intro

Compare those specifications to the Radeon RX 460, which features a clock speed of 1090 MHz and a GDDR5 memory frequency of 1750 MHz. It also uses a 128-bit memory bus, and makes use of a 14 nm design. It is comprised of 896 SPUs, 56 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 460		75 Watts
Radeon HD 5750 1GB		86 Watts
	Difference: 11 Watts (15%)

Memory Bandwidth

The Radeon RX 460 should in theory perform much faster than the Radeon HD 5750 1GB overall. (explain)

Radeon RX 460		112000 MB/sec
Radeon HD 5750 1GB		73600 MB/sec
	Difference: 38400 (52%)

Texel Rate

The Radeon RX 460 should be a lot (more or less 142%) more effective at texture filtering than the Radeon HD 5750 1GB. (explain)

Radeon RX 460		61040 Mtexels/sec
Radeon HD 5750 1GB		25200 Mtexels/sec
	Difference: 35840 (142%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon RX 460 is a better choice, and very much so. (explain)

Radeon RX 460		17440 Mpixels/sec
Radeon HD 5750 1GB		11200 Mpixels/sec
	Difference: 6240 (56%)

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 data (measured in MB per second) that can be transported past the external memory interface in one second. The number is calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's 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 the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.