Radeon R7 250X 2GB vs Radeon RX 5700

Intro

Compare those specifications to the Radeon RX 5700, which features a clock speed of 1465 MHz and a GDDR6 memory frequency of 1750 MHz. It also features a 256-bit bus, and uses a 7 nm design. It is made up of 2304 SPUs, 144 TAUs, and 64 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250X 2GB		95 Watts
Radeon RX 5700		180 Watts
	Difference: 85 Watts (89%)

Memory Bandwidth

As far as performance goes, the Radeon RX 5700 should in theory be quite a bit better than the Radeon R7 250X 2GB overall. (explain)

Radeon RX 5700		458752 MB/sec
Radeon R7 250X 2GB		72000 MB/sec
	Difference: 386752 (537%)

Texel Rate

The Radeon RX 5700 is quite a bit (approximately 427%) more effective at AF than the Radeon R7 250X 2GB. (explain)

Radeon RX 5700		210960 Mtexels/sec
Radeon R7 250X 2GB		40000 Mtexels/sec
	Difference: 170960 (427%)

Pixel Rate

The Radeon RX 5700 should be a lot (about 486%) better at anti-aliasing than the Radeon R7 250X 2GB, and also will be capable of handling higher screen resolutions without slowing down too much. (explain)

Radeon RX 5700		93760 Mpixels/sec
Radeon R7 250X 2GB		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 largest amount of information (counted in MB per second) that can be moved over the external memory interface in a second. The number is calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the 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 amount of texture map elements (texels) that are processed per second. This is calculated by multiplying the total number of texture units by the core speed of the chip. The better this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.