Radeon HD 3650 256MB vs Radeon R9 M295X

Intro

Compare those specs to the Radeon R9 M295X, which features a core clock frequency of 750 MHz and a GDDR5 memory frequency of 1375 MHz. It also features a 256-bit bus, and makes use of a 28 nm design. It is made up of 2048 SPUs, 128 TAUs, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 3650 256MB		78 Watts
Radeon R9 M295X		125 Watts
	Difference: 47 Watts (60%)

Memory Bandwidth

Theoretically, the Radeon R9 M295X should perform quite a bit faster than the Radeon HD 3650 256MB in general. (explain)

Radeon R9 M295X		176000 MB/sec
Radeon HD 3650 256MB		25600 MB/sec
	Difference: 150400 (588%)

Texel Rate

The Radeon R9 M295X should be quite a bit (approximately 1555%) faster with regards to AF than the Radeon HD 3650 256MB. (explain)

Radeon R9 M295X		96000 Mtexels/sec
Radeon HD 3650 256MB		5800 Mtexels/sec
	Difference: 90200 (1555%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon R9 M295X is the winner, by far. (explain)

Radeon R9 M295X		24000 Mpixels/sec
Radeon HD 3650 256MB		2900 Mpixels/sec
	Difference: 21100 (728%)

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

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.