GeForce GTX 750 vs Radeon HD 3650 256MB

Intro

Compare those specifications to the Radeon HD 3650 256MB, which features a GPU core clock speed of 725 MHz, and 256 MB of DDR2 RAM set to run at 800 MHz through a 128-bit bus. It also features 120(24x5) SPUs, 8 TAUs, and 4 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 750		55 Watts
Radeon HD 3650 256MB		78 Watts
	Difference: 23 Watts (42%)

Memory Bandwidth

Performance-wise, the GeForce GTX 750 should theoretically be a lot superior to the Radeon HD 3650 256MB in general. (explain)

GeForce GTX 750		80000 MB/sec
Radeon HD 3650 256MB		25600 MB/sec
	Difference: 54400 (213%)

Texel Rate

The GeForce GTX 750 should be much (approximately 463%) better at AF than the Radeon HD 3650 256MB. (explain)

GeForce GTX 750		32640 Mtexels/sec
Radeon HD 3650 256MB		5800 Mtexels/sec
	Difference: 26840 (463%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 750 is superior to the Radeon HD 3650 256MB, and very much so. (explain)

GeForce GTX 750		16320 Mpixels/sec
Radeon HD 3650 256MB		2900 Mpixels/sec
	Difference: 13420 (463%)

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 information (counted in MB per second) that can be transferred across the external memory interface in one second. The number is worked out by multiplying the interface width by its memory speed. If it uses DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster 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 applied in one second. This number is worked out by multiplying the total texture units by the core clock 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 applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant 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.