Radeon HD 4550 512MB vs Radeon R5 M230

Intro

Compare those specifications to the Radeon R5 M230, which comes with GPU core speed of 780 MHz, and 2048 MB of DDR3 RAM running at 1000 MHz through a 64-bit bus. It also is comprised of 320 Stream Processors, 20 TAUs, and 4 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon R5 M230, in theory, should perform much faster than the Radeon HD 4550 512MB overall. (explain)

Radeon R5 M230		16000 MB/sec
Radeon HD 4550 512MB		12800 MB/sec
	Difference: 3200 (25%)

Texel Rate

The Radeon R5 M230 will be much (approximately 225%) faster with regards to texture filtering than the Radeon HD 4550 512MB. (explain)

Radeon R5 M230		15600 Mtexels/sec
Radeon HD 4550 512MB		4800 Mtexels/sec
	Difference: 10800 (225%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon R5 M230 is a better choice, and very much so. (explain)

Radeon R5 M230		3120 Mpixels/sec
Radeon HD 4550 512MB		2400 Mpixels/sec
	Difference: 720 (30%)

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 (in units of MB per second) that can be transferred over the external memory interface in one second. It is calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, 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 can be applied per second. This number is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher this number, the better the video card will be at handling 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 can possibly record to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.