GeForce GTX 750 vs Radeon HD 4550 256MB

Intro

Compare those specs to the Radeon HD 4550 256MB, which features a GPU core clock speed of 600 MHz, and 256 MB of DDR3 memory running at 800 MHz through a 64-bit bus. It also features 80(16x5) Stream Processors, 8 TAUs, and 4 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4550 256MB		25 Watts
GeForce GTX 750		55 Watts
	Difference: 30 Watts (120%)

Memory Bandwidth

Theoretically, the GeForce GTX 750 should be quite a bit faster than the Radeon HD 4550 256MB overall. (explain)

GeForce GTX 750		80000 MB/sec
Radeon HD 4550 256MB		12800 MB/sec
	Difference: 67200 (525%)

Texel Rate

The GeForce GTX 750 should be a lot (more or less 580%) better at texture filtering than the Radeon HD 4550 256MB. (explain)

GeForce GTX 750		32640 Mtexels/sec
Radeon HD 4550 256MB		4800 Mtexels/sec
	Difference: 27840 (580%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 750 is superior to the Radeon HD 4550 256MB, by far. (explain)

GeForce GTX 750		16320 Mpixels/sec
Radeon HD 4550 256MB		2400 Mpixels/sec
	Difference: 13920 (580%)

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 largest amount of information (measured in MB per second) that can be moved past the external memory interface in one second. The number is calculated by multiplying the bus width by its memory speed. If it uses DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.