Radeon R7 250X vs Radeon RX 5700

Intro

Compare those specifications to the Radeon RX 5700, which makes use of a 7 nm design. AMD has set the core frequency at 1465 MHz. The GDDR6 memory works at a speed of 1750 MHz on this model. It features 2304 SPUs as well as 144 TAUs and 64 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250X		95 Watts
Radeon RX 5700		180 Watts
	Difference: 85 Watts (89%)

Memory Bandwidth

As far as performance goes, the Radeon RX 5700 should theoretically be quite a bit better than the Radeon R7 250X overall. (explain)

Radeon RX 5700		458752 MB/sec
Radeon R7 250X		72000 MB/sec
	Difference: 386752 (537%)

Texel Rate

The Radeon RX 5700 is a lot (approximately 427%) more effective at texture filtering than the Radeon R7 250X. (explain)

Radeon RX 5700		210960 Mtexels/sec
Radeon R7 250X		40000 Mtexels/sec
	Difference: 170960 (427%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon RX 5700 is the winner, by far. (explain)

Radeon RX 5700		93760 Mpixels/sec
Radeon R7 250X		16000 Mpixels/sec
	Difference: 77760 (486%)

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 data (in units of megabytes per second) that can be transferred across the external memory interface in one second. It's calculated by multiplying the interface width by its memory speed. If the card has DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This figure is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the video card will be at handling 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 chip can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.