Radeon HD 3650 512MB vs Radeon R9 M385X

Intro

Compare all of that to the Radeon R9 M385X, which uses a 28 nm design. AMD has set the core frequency at 1100 MHz. The GDDR5 RAM runs at a speed of 1500 MHz on this model. It features 896 SPUs as well as 56 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon R9 M385X should perform a lot faster than the Radeon HD 3650 512MB in general. (explain)

Radeon R9 M385X		96000 MB/sec
Radeon HD 3650 512MB		25600 MB/sec
	Difference: 70400 (275%)

Texel Rate

The Radeon R9 M385X will be much (approximately 962%) better at AF than the Radeon HD 3650 512MB. (explain)

Radeon R9 M385X		61600 Mtexels/sec
Radeon HD 3650 512MB		5800 Mtexels/sec
	Difference: 55800 (962%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon R9 M385X is superior to the Radeon HD 3650 512MB, and very much so. (explain)

Radeon R9 M385X		17600 Mpixels/sec
Radeon HD 3650 512MB		2900 Mpixels/sec
	Difference: 14700 (507%)

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: Bandwidth is the maximum amount of information (measured in megabytes per second) that can be transferred over the external memory interface within a second. The number is calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied 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 better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly write to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.