Radeon R9 270 vs Radeon RX 460 2GB

Intro

Compare those specifications to the Radeon RX 460 2GB, which uses a 14 nm design. AMD has set the core speed at 1090 MHz. The GDDR5 memory runs at a speed of 1750 MHz on this card. It features 896 SPUs along with 56 Texture Address Units and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 460 2GB		75 Watts
Radeon R9 270		150 Watts
	Difference: 75 Watts (100%)

Memory Bandwidth

Performance-wise, the Radeon R9 270 should in theory be much better than the Radeon RX 460 2GB in general. (explain)

Radeon R9 270		179200 MB/sec
Radeon RX 460 2GB		112000 MB/sec
	Difference: 67200 (60%)

Texel Rate

The Radeon R9 270 should be a bit (about 18%) faster with regards to anisotropic filtering than the Radeon RX 460 2GB. (explain)

Radeon R9 270		72000 Mtexels/sec
Radeon RX 460 2GB		61040 Mtexels/sec
	Difference: 10960 (18%)

Pixel Rate

If using a high resolution is important to you, then the Radeon R9 270 is the winner, and very much so. (explain)

Radeon R9 270		28800 Mpixels/sec
Radeon RX 460 2GB		17440 Mpixels/sec
	Difference: 11360 (65%)

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 MB per second) that can be transported across the external memory interface in a second. The number is worked out by multiplying the interface width by its memory clock speed. In the case of DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly write to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.