Radeon R9 270 vs Radeon RX 460 2GB

Intro

Compare all that to the Radeon RX 460 2GB, which uses a 14 nm design. AMD has clocked the core frequency at 1090 MHz. The GDDR5 RAM runs at a speed of 1750 MHz on this specific model. It features 896 SPUs as well as 56 TAUs and 16 Rasterization Operator Units.

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

In theory, the Radeon R9 270 is 60% faster than the Radeon RX 460 2GB overall, due to its higher bandwidth. (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 just a bit (approximately 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 running with a high screen resolution is important to you, then the Radeon R9 270 is a better choice, by far. (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: Bandwidth is the max amount of data (counted in MB per second) that can be transferred over the external memory interface in one second. It is worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher 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 are processed per second. This figure is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.