Radeon HD 3850 1GB vs Radeon R5 M330

Intro

Compare those specs to the Radeon R5 M330, which comes with GPU clock speed of 1030 MHz, and 2048 MB of DDR3 RAM running 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

Theoretically speaking, the Radeon HD 3850 1GB should perform quite a bit faster than the Radeon R5 M330 in general. (explain)

Radeon HD 3850 1GB		52992 MB/sec
Radeon R5 M330		14400 MB/sec
	Difference: 38592 (268%)

Texel Rate

The Radeon R5 M330 will be quite a bit (about 93%) more effective at texture filtering than the Radeon HD 3850 1GB. (explain)

Radeon R5 M330		20600 Mtexels/sec
Radeon HD 3850 1GB		10688 Mtexels/sec
	Difference: 9912 (93%)

Pixel Rate

The Radeon HD 3850 1GB will be quite a bit (about 30%) better at anti-aliasing than the Radeon R5 M330, and also should be able to handle higher resolutions more effectively. (explain)

Radeon HD 3850 1GB		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 largest amount of information (in units of MB per second) that can be transferred across the external memory interface in a second. It's worked out by multiplying the bus width by its memory speed. In the case of DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's 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 texture map elements (texels) that are applied per second. This number 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 graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to 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 reach the maximum fill rate.