Radeon HD 3850 512MB vs Radeon R5 M330

Intro

Compare those specifications to the Radeon R5 M330, which features a clock frequency of 1030 MHz and a DDR3 memory frequency of 900 MHz. It also features a 64-bit memory bus, and makes use of a 28 nm design. It is made up of 320 SPUs, 20 Texture Address Units, and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon HD 3850 512MB should perform quite a bit faster than the Radeon R5 M330 in general. (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 quite a bit (about 93%) better at AF 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

The Radeon HD 3850 512MB is quite a bit (about 30%) better at AA than the Radeon R5 M330, and should be capable of handling higher screen resolutions without losing too much performance. (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 largest amount of information (counted in MB per second) that can be transported over the external memory interface within a second. It's calculated by multiplying the interface width by the speed of its memory. If the card has DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, 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 processed per second. This number is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends 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.