Radeon R7 250 vs Radeon RX 5500

Intro

Compare those specifications to the Radeon RX 5500, which comes with a core clock frequency of 1670 MHz and a GDDR6 memory speed of 1750 MHz. It also makes use of a 128-bit bus, and makes use of a 7 nm design. It is comprised of 1408 SPUs, 88 Texture Address Units, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250		65 Watts
Radeon RX 5500		150 Watts
	Difference: 85 Watts (131%)

Memory Bandwidth

In theory, the Radeon RX 5500 will be 212% faster than the Radeon R7 250 in general, because of its higher bandwidth. (explain)

Radeon RX 5500		229376 MB/sec
Radeon R7 250		73600 MB/sec
	Difference: 155776 (212%)

Texel Rate

The Radeon RX 5500 will be quite a bit (approximately 512%) better at texture filtering than the Radeon R7 250. (explain)

Radeon RX 5500		146960 Mtexels/sec
Radeon R7 250		24000 Mtexels/sec
	Difference: 122960 (512%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon RX 5500 is a better choice, by a large margin. (explain)

Radeon RX 5500		53440 Mpixels/sec
Radeon R7 250		8000 Mpixels/sec
	Difference: 45440 (568%)

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 (in units of MB per second) that can be moved across the external memory interface within a second. It's calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

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