Radeon R9 M265X vs Radeon RX 470 4GB

Intro

Compare that to the Radeon RX 470 4GB, which features a GPU core clock speed of 926 MHz, and 4096 MB of GDDR5 RAM running at 1650 MHz through a 256-bit bus. It also is comprised of 2048 Stream Processors, 128 TAUs, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon RX 470 4GB, in theory, should be a lot faster than the Radeon R9 M265X in general. (explain)

Radeon RX 470 4GB		211200 MB/sec
Radeon R9 M265X		72000 MB/sec
	Difference: 139200 (193%)

Texel Rate

The Radeon RX 470 4GB should be a lot (about 415%) faster with regards to anisotropic filtering than the Radeon R9 M265X. (explain)

Radeon RX 470 4GB		118528 Mtexels/sec
Radeon R9 M265X		23000 Mtexels/sec
	Difference: 95528 (415%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon RX 470 4GB is superior to the Radeon R9 M265X, and very much so. (explain)

Radeon RX 470 4GB		29632 Mpixels/sec
Radeon R9 M265X		9200 Mpixels/sec
	Difference: 20432 (222%)

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 information (counted in megabytes per second) that can be moved past the external memory interface in one second. The number is calculated by multiplying the interface width by its memory speed. If it uses DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This is worked out by multiplying the total texture units by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.