Radeon R9 M295X vs Radeon RX 470 4GB

Intro

Compare those specs to the Radeon RX 470 4GB, which features clock speeds of 926 MHz on the GPU, and 1650 MHz on the 4096 MB of GDDR5 memory. It features 2048 SPUs along with 128 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 470 4GB		120 Watts
Radeon R9 M295X		125 Watts
	Difference: 5 Watts (4%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 470 4GB should be 20% quicker than the Radeon R9 M295X in general, because of its greater data rate. (explain)

Radeon RX 470 4GB		211200 MB/sec
Radeon R9 M295X		176000 MB/sec
	Difference: 35200 (20%)

Texel Rate

The Radeon RX 470 4GB is a lot (about 23%) better at texture filtering than the Radeon R9 M295X. (explain)

Radeon RX 470 4GB		118528 Mtexels/sec
Radeon R9 M295X		96000 Mtexels/sec
	Difference: 22528 (23%)

Pixel Rate

The Radeon RX 470 4GB will be much (approximately 23%) better at anti-aliasing than the Radeon R9 M295X, and also should be able to handle higher resolutions more effectively. (explain)

Radeon RX 470 4GB		29632 Mpixels/sec
Radeon R9 M295X		24000 Mpixels/sec
	Difference: 5632 (23%)

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 (in units of MB per second) that can be transferred past the external memory interface in a second. The number is worked out by multiplying the card's bus width by its memory speed. In the case of DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the 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 are processed in one second. This number 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 video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant 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.