Radeon R9 M265X vs Radeon RX 480

Intro

Compare those specs to the Radeon RX 480, which features clock speeds of 1120 MHz on the GPU, and 2000 MHz on the 8192 MB of GDDR5 RAM. It features 2304 SPUs as well as 144 TAUs and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon RX 480 should perform quite a bit faster than the Radeon R9 M265X overall. (explain)

Radeon RX 480		262144 MB/sec
Radeon R9 M265X		72000 MB/sec
	Difference: 190144 (264%)

Texel Rate

The Radeon RX 480 is much (more or less 601%) more effective at anisotropic filtering than the Radeon R9 M265X. (explain)

Radeon RX 480		161280 Mtexels/sec
Radeon R9 M265X		23000 Mtexels/sec
	Difference: 138280 (601%)

Pixel Rate

The Radeon RX 480 will be quite a bit (approximately 290%) more effective at AA than the Radeon R9 M265X, and also should be able to handle higher resolutions better. (explain)

Radeon RX 480		35840 Mpixels/sec
Radeon R9 M265X		9200 Mpixels/sec
	Difference: 26640 (290%)

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 largest amount of data (counted in MB per second) that can be transported over the external memory interface in a second. It's worked out by multiplying the card's interface width by its memory speed. In the case of DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher 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 texture map elements (texels) that can be applied in one second. This number is worked out by multiplying the total number of texture units by the core clock speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.