Radeon R7 250X 2GB vs Radeon RX 460

Intro

Compare those specs to the Radeon RX 460, which features a clock frequency of 1090 MHz and a GDDR5 memory frequency of 1750 MHz. It also makes use of a 128-bit bus, and uses a 14 nm design. It features 896 SPUs, 56 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 460		75 Watts
Radeon R7 250X 2GB		95 Watts
	Difference: 20 Watts (27%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 460 should be a lot faster than the Radeon R7 250X 2GB in general. (explain)

Radeon RX 460		112000 MB/sec
Radeon R7 250X 2GB		72000 MB/sec
	Difference: 40000 (56%)

Texel Rate

The Radeon RX 460 will be a lot (approximately 53%) faster with regards to AF than the Radeon R7 250X 2GB. (explain)

Radeon RX 460		61040 Mtexels/sec
Radeon R7 250X 2GB		40000 Mtexels/sec
	Difference: 21040 (53%)

Pixel Rate

If using a high resolution is important to you, then the Radeon RX 460 is superior to the Radeon R7 250X 2GB, though only just barely. (explain)

Radeon RX 460		17440 Mpixels/sec
Radeon R7 250X 2GB		16000 Mpixels/sec
	Difference: 1440 (9%)

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 (measured in MB per second) that can be moved across the external memory interface in one second. It's calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

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