Radeon HD 3850 512MB vs Radeon R5 M330

Intro

Compare that to the Radeon R5 M330, which comes with a GPU core clock speed of 1030 MHz, and 2048 MB of DDR3 memory set to run at 900 MHz through a 64-bit bus. It also is made up of 320 SPUs, 20 Texture Address Units, and 8 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon HD 3850 512MB is 268% faster than the Radeon R5 M330 in general, due to its higher bandwidth. (explain)

Radeon HD 3850 512MB		52992 MB/sec
Radeon R5 M330		14400 MB/sec
	Difference: 38592 (268%)

Texel Rate

The Radeon R5 M330 will be much (approximately 93%) more effective at anisotropic filtering than the Radeon HD 3850 512MB. (explain)

Radeon R5 M330		20600 Mtexels/sec
Radeon HD 3850 512MB		10688 Mtexels/sec
	Difference: 9912 (93%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon HD 3850 512MB is a better choice, by far. (explain)

Radeon HD 3850 512MB		10688 Mpixels/sec
Radeon R5 M330		8240 Mpixels/sec
	Difference: 2448 (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 (counted in MB per second) that can be transferred across the external memory interface in one second. It's calculated by multiplying the interface width by the speed of its memory. In the case of DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's 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 can be applied per second. This number is calculated by multiplying the total number of texture units by the core speed of the chip. The better this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the clock 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 quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.