Radeon R9 M265X vs Radeon RX 470 4GB

Intro

Compare those specs to the Radeon RX 470 4GB, which has core speeds of 926 MHz on the GPU, and 1650 MHz on the 4096 MB of GDDR5 RAM. It features 2048 SPUs as well as 128 Texture Address Units and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Performance-wise, the Radeon RX 470 4GB should in theory be quite a bit better than the Radeon R9 M265X overall. (explain)

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

Texel Rate

The Radeon RX 470 4GB will be quite a bit (more or less 415%) faster with regards to texture 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

The Radeon RX 470 4GB should be a lot (about 222%) faster with regards to AA than the Radeon R9 M265X, and will be capable of handling higher resolutions without losing too much performance. (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 max amount of information (measured in megabytes per second) that can be moved across the external memory interface within a second. The number is worked out by multiplying the interface width by the speed of its memory. If the card has DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster 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 in one second. This figure is calculated 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 card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines 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 output rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.