GeForce GTX 275 vs Radeon RX 550

Intro

Compare those specifications to the Radeon RX 550, which makes use of a 14 nm design. AMD has clocked the core frequency at 1100 MHz. The GDDR5 memory runs at a frequency of 1750 MHz on this particular model. It features 512 SPUs as well as 32 TAUs 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

In theory, the GeForce GTX 275 is 11% faster than the Radeon RX 550 overall, due to its higher data rate. (explain)

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

Texel Rate

The GeForce GTX 275 will be much (about 44%) more effective at 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 using high levels of AA is important to you, then the GeForce GTX 275 is superior to the Radeon RX 550, but not by far. (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: Memory bandwidth is the maximum amount of data (counted in MB per second) that can be transferred over the external memory interface within a second. It is calculated by multiplying the card's bus width by its memory speed. If the card has DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per 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 texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units 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 fill rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.