Radeon HD 4550 512MB vs Radeon R7 M260

Intro

Compare all that to the Radeon R7 M260, which comes with GPU core speed of 715 MHz, and 2048 MB of DDR3 memory set to run at 1000 MHz through a 64-bit bus. It also is comprised of 384 Stream Processors, 24 TAUs, and 8 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

As far as performance goes, the Radeon R7 M260 should theoretically be quite a bit better than the Radeon HD 4550 512MB overall. (explain)

Radeon R7 M260		16000 MB/sec
Radeon HD 4550 512MB		12800 MB/sec
	Difference: 3200 (25%)

Texel Rate

The Radeon R7 M260 is much (approximately 258%) faster with regards to texture filtering than the Radeon HD 4550 512MB. (explain)

Radeon R7 M260		17160 Mtexels/sec
Radeon HD 4550 512MB		4800 Mtexels/sec
	Difference: 12360 (258%)

Pixel Rate

The Radeon R7 M260 will be a lot (about 138%) faster with regards to anti-aliasing than the Radeon HD 4550 512MB, and should be able to handle higher resolutions while still performing well. (explain)

Radeon R7 M260		5720 Mpixels/sec
Radeon HD 4550 512MB		2400 Mpixels/sec
	Difference: 3320 (138%)

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 MB per second) that can be transferred past the external memory interface in one second. The number is calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This 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 handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.