GeForce GTX 260 vs Radeon RX 550

Intro

Compare that to the Radeon RX 550, which features a clock frequency of 1100 MHz and a GDDR5 memory speed of 1750 MHz. It also features a 128-bit memory bus, and uses a 14 nm design. It is made up 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 260		182 Watts
	Difference: 132 Watts (264%)

Memory Bandwidth

The Radeon RX 550, in theory, should perform a little bit faster than the GeForce GTX 260 in general. (explain)

Radeon RX 550		114688 MB/sec
GeForce GTX 260		111888 MB/sec
	Difference: 2800 (3%)

Texel Rate

The GeForce GTX 260 is a bit (approximately 5%) more effective at AF than the Radeon RX 550. (explain)

GeForce GTX 260		36864 Mtexels/sec
Radeon RX 550		35200 Mtexels/sec
	Difference: 1664 (5%)

Pixel Rate

The Radeon RX 550 should be a small bit (about 9%) faster with regards to full screen anti-aliasing than the GeForce GTX 260, and able to handle higher resolutions more effectively. (explain)

Radeon RX 550		17600 Mpixels/sec
GeForce GTX 260		16128 Mpixels/sec
	Difference: 1472 (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: Memory bandwidth is the largest amount of data (counted in megabytes per second) that can be transported across the external memory interface in a second. The number is worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, 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 are applied in one second. This number is calculated by multiplying the total texture units by the core clock speed of the chip. The higher the texel rate, the better the video 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 maximum amount of pixels the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.