Radeon HD 3650 512MB vs Radeon R7 M265

Intro

Compare all of that to the Radeon R7 M265, which has clock 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

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically, the Radeon R7 M265 should perform much faster than the Radeon HD 3650 512MB in general. (explain)

Radeon R7 M265		32000 MB/sec
Radeon HD 3650 512MB		25600 MB/sec
	Difference: 6400 (25%)

Texel Rate

The Radeon R7 M265 will be much (about 200%) more effective at anisotropic filtering than the Radeon HD 3650 512MB. (explain)

Radeon R7 M265		17400 Mtexels/sec
Radeon HD 3650 512MB		5800 Mtexels/sec
	Difference: 11600 (200%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon R7 M265 is superior to the Radeon HD 3650 512MB, and very much so. (explain)

Radeon R7 M265		5800 Mpixels/sec
Radeon HD 3650 512MB		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: Bandwidth is the maximum amount of data (in units of MB per second) that can be moved past the external memory interface within a second. It is worked out by multiplying the interface width by its memory clock speed. If it uses DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, 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 are applied per second. This figure is worked out by multiplying the total number of texture units of the card by the core 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 per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.