Radeon HD 3650 vs Radeon R9 M295X

Intro

Compare all that to the Radeon R9 M295X, which has a GPU core clock speed of 750 MHz, and 4096 MB of GDDR5 memory set to run at 1375 MHz through a 256-bit bus. It also is made up of 2048 Stream Processors, 128 TAUs, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

The Radeon R9 M295X should theoretically perform quite a bit faster than the Radeon HD 3650 overall. (explain)

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

Texel Rate

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

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

Pixel Rate

The Radeon R9 M295X will be much (about 728%) faster with regards to FSAA than the Radeon HD 3650, and also capable of handling higher resolutions more effectively. (explain)

Radeon R9 M295X		24000 Mpixels/sec
Radeon HD 3650		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: Bandwidth is the largest amount of data (counted in megabytes per second) that can be transferred across the external memory interface in a second. It's worked out by multiplying the bus width by its memory clock speed. If the card has DDR type RAM, the result should be multiplied by 2 again. If 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 number of texture map elements (texels) that can be processed in one second. This figure is worked out by multiplying the total amount of texture units by the core speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill 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 potential to reach the maximum fill rate.