Radeon HD 3850 512MB vs Radeon R5 M330

Intro

Compare all of that to the Radeon R5 M330, which features GPU core 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 TAUs, and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Performance-wise, the Radeon HD 3850 512MB should theoretically be much better 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 should be quite a bit (about 93%) faster with regards to 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 should be a lot (approximately 30%) more effective at FSAA than the Radeon R5 M330, and should be capable of handling higher resolutions while still performing well. (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 megabytes per second) that can be transferred over the external memory interface in one second. The number is worked out by multiplying the interface width by its memory speed. If it uses DDR RAM, it must 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, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This figure is worked out by multiplying the total number of texture units by the core clock 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 applied per second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the clock speed of the card. 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 quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.