GeForce GTX 275 vs Radeon RX 550

Intro

Compare all that to the Radeon RX 550, which has GPU core speed of 1100 MHz, and 2048 MB of GDDR5 memory set to run at 1750 MHz through a 128-bit bus. It also is comprised of 512 SPUs, 32 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 550		50 Watts
GeForce GTX 275		219 Watts
	Difference: 169 Watts (338%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 275 should perform a bit faster than the Radeon RX 550 in general. (explain)

GeForce GTX 275		127008 MB/sec
Radeon RX 550		114688 MB/sec
	Difference: 12320 (11%)

Texel Rate

The GeForce GTX 275 will be quite a bit (about 44%) faster with regards to texture filtering than the Radeon RX 550. (explain)

GeForce GTX 275		50640 Mtexels/sec
Radeon RX 550		35200 Mtexels/sec
	Difference: 15440 (44%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 275 is superior to the Radeon RX 550, but it probably won't make a huge difference. (explain)

GeForce GTX 275		17724 Mpixels/sec
Radeon RX 550		17600 Mpixels/sec
	Difference: 124 (1%)

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: Bandwidth is the max amount of data (measured in megabytes per second) that can be transferred over the external memory interface in a second. It is calculated by multiplying the interface width by its memory speed. If it uses DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster 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 can be processed per second. This is worked out by multiplying the total texture units of the card by the core speed of the chip. The better the texel rate, the better the 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 most pixels that the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.