Radeon HD 3650 vs Radeon R9 M385X

Intro

Compare those specifications to the Radeon R9 M385X, which has core clock speeds of 1100 MHz on the GPU, and 1500 MHz on the 4096 MB of GDDR5 RAM. It features 896 SPUs as well as 56 TAUs and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

As far as performance goes, the Radeon R9 M385X should theoretically be a lot better than the Radeon HD 3650 overall. (explain)

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

Texel Rate

The Radeon R9 M385X should be a lot (about 962%) better at texture filtering than the Radeon HD 3650. (explain)

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

Pixel Rate

If using a high resolution is important to you, then the Radeon R9 M385X is a better choice, by a large margin. (explain)

Radeon R9 M385X		17600 Mpixels/sec
Radeon HD 3650		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: Memory bandwidth is the largest amount of data (in units of MB per second) that can be moved over the external memory interface in one second. It is calculated by multiplying the card's interface width by its memory clock speed. In the case of DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This is worked out by multiplying the total texture units of the card by the core clock 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 in a second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly write to its local memory in a 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 - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.