Radeon R7 250X vs Radeon RX 590

Intro

Compare those specs to the Radeon RX 590, which has a core clock frequency of 1469 MHz and a GDDR5 memory frequency of 2000 MHz. It also makes use of a 256-bit bus, and makes use of a 12 nm design. It features 2304 SPUs, 144 TAUs, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250X		95 Watts
Radeon RX 590		175 Watts
	Difference: 80 Watts (84%)

Memory Bandwidth

Performance-wise, the Radeon RX 590 should in theory be a lot superior to the Radeon R7 250X in general. (explain)

Radeon RX 590		262144 MB/sec
Radeon R7 250X		72000 MB/sec
	Difference: 190144 (264%)

Texel Rate

The Radeon RX 590 should be a lot (about 429%) faster with regards to AF than the Radeon R7 250X. (explain)

Radeon RX 590		211536 Mtexels/sec
Radeon R7 250X		40000 Mtexels/sec
	Difference: 171536 (429%)

Pixel Rate

The Radeon RX 590 is quite a bit (approximately 194%) faster with regards to AA than the Radeon R7 250X, and also able to handle higher screen resolutions without losing too much performance. (explain)

Radeon RX 590		47008 Mpixels/sec
Radeon R7 250X		16000 Mpixels/sec
	Difference: 31008 (194%)

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 megabytes per second) that can be transferred over the external memory interface in one second. It's calculated by multiplying the card's bus width by its memory speed. If the card has DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the 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 number of texture map elements (texels) that can be applied in one second. This figure is worked out by multiplying the total texture units of the card by the core 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 per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.