Radeon HD 3650 vs Radeon R7 M265

Intro

Compare that to the Radeon R7 M265, which features core speeds of 725 MHz on the GPU, and 1000 MHz on the 2048 MB of DDR3 RAM. It features 384 SPUs as well as 24 Texture Address Units and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

As far as performance goes, the Radeon R7 M265 should in theory be a lot superior to the Radeon HD 3650 overall. (explain)

Radeon R7 M265		32000 MB/sec
Radeon HD 3650		25600 MB/sec
	Difference: 6400 (25%)

Texel Rate

The Radeon R7 M265 should be much (approximately 200%) better at texture filtering than the Radeon HD 3650. (explain)

Radeon R7 M265		17400 Mtexels/sec
Radeon HD 3650		5800 Mtexels/sec
	Difference: 11600 (200%)

Pixel Rate

The Radeon R7 M265 is quite a bit (approximately 100%) more effective at AA than the Radeon HD 3650, and also should be able to handle higher resolutions while still performing well. (explain)

Radeon R7 M265		5800 Mpixels/sec
Radeon HD 3650		2900 Mpixels/sec
	Difference: 2900 (100%)

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 (measured in megabytes per second) that can be moved across the external memory interface within a second. The number is calculated by multiplying the bus width by its memory clock speed. If it uses DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This figure is calculated by multiplying the total texture units of the card by the core speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.