Radeon HD 3650 vs Radeon R7 240

Intro

Compare those specifications to the Radeon R7 240, which has GPU clock speed of 730 MHz, and 2048 MB of DDR3 memory running at 900 MHz through a 128-bit bus. It also is comprised of 320 Stream Processors, 20 Texture Address Units, and 8 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 240		30 Watts
Radeon HD 3650		78 Watts
	Difference: 48 Watts (160%)

Memory Bandwidth

The Radeon R7 240 should theoretically perform a little bit faster than the Radeon HD 3650 in general. (explain)

Radeon R7 240		28800 MB/sec
Radeon HD 3650		25600 MB/sec
	Difference: 3200 (13%)

Texel Rate

The Radeon R7 240 is much (approximately 152%) better at anisotropic filtering than the Radeon HD 3650. (explain)

Radeon R7 240		14600 Mtexels/sec
Radeon HD 3650		5800 Mtexels/sec
	Difference: 8800 (152%)

Pixel Rate

If using a high resolution is important to you, then the Radeon R7 240 is superior to the Radeon HD 3650, and very much so. (explain)

Radeon R7 240		5840 Mpixels/sec
Radeon HD 3650		2900 Mpixels/sec
	Difference: 2940 (101%)

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 information (measured in megabytes per second) that can be transferred past the external memory interface in a second. It is calculated by multiplying the card's interface width by the speed of its memory. If the card has DDR type RAM, it must 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 AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card could possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines 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 rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.