GeForce GT 230 vs Radeon RX 550

Intro

Compare that to the Radeon RX 550, which has GPU core speed of 1100 MHz, and 2048 MB of GDDR5 RAM running at 1750 MHz through a 128-bit bus. It also is comprised of 512 SPUs, 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 GT 230		65 Watts
	Difference: 15 Watts (30%)

Memory Bandwidth

The Radeon RX 550 should in theory be much faster than the GeForce GT 230 in general. (explain)

Radeon RX 550		114688 MB/sec
GeForce GT 230		38400 MB/sec
	Difference: 76288 (199%)

Texel Rate

The Radeon RX 550 will be much (more or less 300%) more effective at anisotropic filtering than the GeForce GT 230. (explain)

Radeon RX 550		35200 Mtexels/sec
GeForce GT 230		8800 Mtexels/sec
	Difference: 26400 (300%)

Pixel Rate

The Radeon RX 550 is much (more or less 300%) faster with regards to full screen anti-aliasing than the GeForce GT 230, and capable of handling higher screen resolutions better. (explain)

Radeon RX 550		17600 Mpixels/sec
GeForce GT 230		4400 Mpixels/sec
	Difference: 13200 (300%)

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 (in units of megabytes per second) that can be transferred past the external memory interface in one second. It's calculated by multiplying the card's interface width by its memory clock speed. In the case of DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the 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 texture map elements (texels) that can be applied in one second. This figure 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 video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the the card's 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 rate also depends on quite a few 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.