Radeon HD 3650 512MB vs Radeon R9 M265X

Intro

Compare those specs to the Radeon R9 M265X, which features a clock speed of 575 MHz and a GDDR5 memory frequency of 1125 MHz. It also makes use of a 128-bit bus, and makes use of a 28 nm design. It is made up of 640 SPUs, 40 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically, the Radeon R9 M265X should perform a lot faster than the Radeon HD 3650 512MB in general. (explain)

Radeon R9 M265X		72000 MB/sec
Radeon HD 3650 512MB		25600 MB/sec
	Difference: 46400 (181%)

Texel Rate

The Radeon R9 M265X should be much (approximately 297%) better at texture filtering than the Radeon HD 3650 512MB. (explain)

Radeon R9 M265X		23000 Mtexels/sec
Radeon HD 3650 512MB		5800 Mtexels/sec
	Difference: 17200 (297%)

Pixel Rate

The Radeon R9 M265X will be a lot (approximately 217%) faster with regards to FSAA than the Radeon HD 3650 512MB, and also will be capable of handling higher resolutions better. (explain)

Radeon R9 M265X		9200 Mpixels/sec
Radeon HD 3650 512MB		2900 Mpixels/sec
	Difference: 6300 (217%)

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 max amount of data (in units of MB per second) that can be transported across the external memory interface in a second. It's worked out by multiplying the interface width by its memory speed. If the card has DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the 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 texture map elements (texels) that can be applied per second. This number is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The better the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units 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 lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.