Radeon R7 250 vs Radeon RX 6650 XT

Intro

Compare those specs to the Radeon RX 6650 XT, which features core clock speeds of 2055 MHz on the GPU, and 2190 MHz on the 8192 MB of GDDR6 RAM. It features 2048 SPUs along with 128 Texture Address Units and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250		65 Watts
Radeon RX 6650 XT		176 Watts
	Difference: 111 Watts (171%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 6650 XT will be 290% faster than the Radeon R7 250 in general, because of its greater bandwidth. (explain)

Radeon RX 6650 XT		287072 MB/sec
Radeon R7 250		73600 MB/sec
	Difference: 213472 (290%)

Texel Rate

The Radeon RX 6650 XT will be much (about 996%) more effective at AF than the Radeon R7 250. (explain)

Radeon RX 6650 XT		263040 Mtexels/sec
Radeon R7 250		24000 Mtexels/sec
	Difference: 239040 (996%)

Pixel Rate

The Radeon RX 6650 XT is much (more or less 1544%) more effective at FSAA than the Radeon R7 250, and also should be capable of handling higher resolutions more effectively. (explain)

Radeon RX 6650 XT		131520 Mpixels/sec
Radeon R7 250		8000 Mpixels/sec
	Difference: 123520 (1544%)

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 transferred over the external memory interface within a second. It is worked out by multiplying the card's bus width by its memory speed. In the case of DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This is calculated 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 graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs by the the core 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 fill rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.