GeForce GTX 280 vs Radeon RX 550

Intro

Compare all of that to the Radeon RX 550, which features core clock speeds of 1100 MHz on the GPU, and 1750 MHz on the 2048 MB of GDDR5 memory. It features 512 SPUs as well as 32 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 550		50 Watts
GeForce GTX 280		236 Watts
	Difference: 186 Watts (372%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 280 should perform much faster than the Radeon RX 550 in general. (explain)

GeForce GTX 280		141696 MB/sec
Radeon RX 550		114688 MB/sec
	Difference: 27008 (24%)

Texel Rate

The GeForce GTX 280 should be a lot (approximately 37%) more effective at anisotropic filtering than the Radeon RX 550. (explain)

GeForce GTX 280		48160 Mtexels/sec
Radeon RX 550		35200 Mtexels/sec
	Difference: 12960 (37%)

Pixel Rate

The GeForce GTX 280 should be just a bit (approximately 9%) more effective at FSAA than the Radeon RX 550, and also will be capable of handling higher screen resolutions while still performing well. (explain)

GeForce GTX 280		19264 Mpixels/sec
Radeon RX 550		17600 Mpixels/sec
	Difference: 1664 (9%)

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 largest amount of information (in units of MB per second) that can be moved over the external memory interface in a second. It's worked out by multiplying the bus width by the speed of its memory. If the card has DDR type RAM, the result should be multiplied by 2 again. If it uses 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 amount of texture map elements (texels) that are applied in one second. This number is worked out by multiplying the total texture units by the core clock speed of the chip. The better the texel rate, the better the video 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 chip can possibly write to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.