Radeon R9 M265X vs Radeon RX 460 2GB

Intro

Compare those specs to the Radeon RX 460 2GB, which features a core clock speed of 1090 MHz and a GDDR5 memory frequency of 1750 MHz. It also features a 128-bit bus, and makes use of a 14 nm design. It features 896 SPUs, 56 TAUs, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon RX 460 2GB will be 56% quicker than the Radeon R9 M265X in general, due to its greater bandwidth. (explain)

Radeon RX 460 2GB		112000 MB/sec
Radeon R9 M265X		72000 MB/sec
	Difference: 40000 (56%)

Texel Rate

The Radeon RX 460 2GB is quite a bit (more or less 165%) more effective at anisotropic filtering than the Radeon R9 M265X. (explain)

Radeon RX 460 2GB		61040 Mtexels/sec
Radeon R9 M265X		23000 Mtexels/sec
	Difference: 38040 (165%)

Pixel Rate

The Radeon RX 460 2GB should be quite a bit (more or less 90%) more effective at AA than the Radeon R9 M265X, and also able to handle higher resolutions without losing too much performance. (explain)

Radeon RX 460 2GB		17440 Mpixels/sec
Radeon R9 M265X		9200 Mpixels/sec
	Difference: 8240 (90%)

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 max amount of data (counted in megabytes per second) that can be moved across the external memory interface in one second. The number is worked out by multiplying the bus width by its memory clock speed. If it uses DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This number is worked out by multiplying the total number of texture units by the core clock 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 per second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.