GeForce 8800 Ultra vs Radeon RX 550

Intro

Compare that to the Radeon RX 550, which comes with a core clock frequency of 1100 MHz and a GDDR5 memory speed of 1750 MHz. It also makes use of a 128-bit memory bus, and makes use of a 14 nm design. It features 512 SPUs, 32 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 550		50 Watts
GeForce 8800 Ultra		171 Watts
	Difference: 121 Watts (242%)

Memory Bandwidth

As far as performance goes, the Radeon RX 550 should theoretically be a small bit better than the GeForce 8800 Ultra overall. (explain)

Radeon RX 550		114688 MB/sec
GeForce 8800 Ultra		103680 MB/sec
	Difference: 11008 (11%)

Texel Rate

The GeForce 8800 Ultra will be a small bit (approximately 11%) better at AF than the Radeon RX 550. (explain)

GeForce 8800 Ultra		39168 Mtexels/sec
Radeon RX 550		35200 Mtexels/sec
	Difference: 3968 (11%)

Pixel Rate

The Radeon RX 550 should be a little bit (more or less 20%) faster with regards to full screen anti-aliasing than the GeForce 8800 Ultra, and also should be able to handle higher resolutions without losing too much performance. (explain)

Radeon RX 550		17600 Mpixels/sec
GeForce 8800 Ultra		14688 Mpixels/sec
	Difference: 2912 (20%)

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 (measured in MB per second) that can be transported past the external memory interface in one second. It's worked out by multiplying the bus width by its memory speed. In the case of DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better 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 per second. This is worked out by multiplying the total amount of texture units of the card by the core 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 in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly record 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 clock 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 also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.