Radeon HD 3650 512MB vs Radeon R9 M295X

Intro

Compare that to the Radeon R9 M295X, which comes with a clock frequency of 750 MHz and a GDDR5 memory frequency of 1375 MHz. It also uses a 256-bit memory bus, and makes use of a 28 nm design. It is comprised of 2048 SPUs, 128 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 3650 512MB		78 Watts
Radeon R9 M295X		125 Watts
	Difference: 47 Watts (60%)

Memory Bandwidth

The Radeon R9 M295X should theoretically be much faster than the Radeon HD 3650 512MB in general. (explain)

Radeon R9 M295X		176000 MB/sec
Radeon HD 3650 512MB		25600 MB/sec
	Difference: 150400 (588%)

Texel Rate

The Radeon R9 M295X is a lot (about 1555%) better at anisotropic filtering than the Radeon HD 3650 512MB. (explain)

Radeon R9 M295X		96000 Mtexels/sec
Radeon HD 3650 512MB		5800 Mtexels/sec
	Difference: 90200 (1555%)

Pixel Rate

If using a high resolution is important to you, then the Radeon R9 M295X is the winner, by far. (explain)

Radeon R9 M295X		24000 Mpixels/sec
Radeon HD 3650 512MB		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 information (counted in megabytes per second) that can be transferred across the external memory interface in one second. The number is calculated by multiplying the interface width by the speed of its memory. In the case of DDR type memory, the result should be multiplied by 2 once 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 higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.