Radeon R7 250 vs Radeon RX 580

Intro

Compare those specs to the Radeon RX 580, which makes use of a 14 nm design. AMD has clocked the core frequency at 1257 MHz. The GDDR5 memory works at a frequency of 2000 MHz on this model. It features 2304 SPUs along with 144 TAUs and 32 ROPs.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Radeon RX 580		13630 points
Radeon R7 250		1836 points
	Difference: 11794 (642%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250		65 Watts
Radeon RX 580		185 Watts
	Difference: 120 Watts (185%)

Memory Bandwidth

Performance-wise, the Radeon RX 580 should in theory be quite a bit better than the Radeon R7 250 overall. (explain)

Radeon RX 580		262144 MB/sec
Radeon R7 250		73600 MB/sec
	Difference: 188544 (256%)

Texel Rate

The Radeon RX 580 is a lot (about 654%) faster with regards to texture filtering than the Radeon R7 250. (explain)

Radeon RX 580		181008 Mtexels/sec
Radeon R7 250		24000 Mtexels/sec
	Difference: 157008 (654%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon RX 580 is the winner, by far. (explain)

Radeon RX 580		40224 Mpixels/sec
Radeon R7 250		8000 Mpixels/sec
	Difference: 32224 (403%)

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 maximum amount of data (measured in megabytes per second) that can be transferred over the external memory interface within a second. It is calculated by multiplying the interface width by its memory clock speed. If it uses DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This number is worked out by multiplying the total texture units by the core clock speed of the chip. The better the texel rate, 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 number of pixels the video card can possibly write to the local memory per second - measured in millions of pixels per second. The number is worked out 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 filling the screen with pixels (the image). The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.