Radeon R7 250 vs Radeon RX 5700

Intro

Compare those specs to the Radeon RX 5700, which features GPU core speed of 1465 MHz, and 8096 MB of GDDR6 RAM set to run at 1750 MHz through a 256-bit bus. It also is comprised of 2304 Stream Processors, 144 Texture Address Units, and 64 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250		65 Watts
Radeon RX 5700		180 Watts
	Difference: 115 Watts (177%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 5700 will be 523% quicker than the Radeon R7 250 overall, because of its greater bandwidth. (explain)

Radeon RX 5700		458752 MB/sec
Radeon R7 250		73600 MB/sec
	Difference: 385152 (523%)

Texel Rate

The Radeon RX 5700 is a lot (about 779%) more effective at texture filtering than the Radeon R7 250. (explain)

Radeon RX 5700		210960 Mtexels/sec
Radeon R7 250		24000 Mtexels/sec
	Difference: 186960 (779%)

Pixel Rate

The Radeon RX 5700 will be a lot (approximately 1072%) more effective at full screen anti-aliasing than the Radeon R7 250, and will be able to handle higher screen resolutions more effectively. (explain)

Radeon RX 5700		93760 Mpixels/sec
Radeon R7 250		8000 Mpixels/sec
	Difference: 85760 (1072%)

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 (counted in megabytes per second) that can be transferred past the external memory interface within a second. It's worked out by multiplying the bus width by the speed of its memory. In the case of DDR type RAM, it must be multiplied by 2 again. If 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 calculated by multiplying the total amount of texture units of the card by the core clock 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 processed in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly write to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as 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 of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.