Geforce GTX 760 vs Radeon HD 4550 256MB

Intro

Compare that to the Radeon HD 4550 256MB, which features clock speeds of 600 MHz on the GPU, and 800 MHz on the 256 MB of DDR3 RAM. It features 80(16x5) SPUs as well as 8 Texture Address Units and 4 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4550 256MB		25 Watts
Geforce GTX 760		170 Watts
	Difference: 145 Watts (580%)

Memory Bandwidth

The Geforce GTX 760, in theory, should be quite a bit faster than the Radeon HD 4550 256MB overall. (explain)

Geforce GTX 760		192256 MB/sec
Radeon HD 4550 256MB		12800 MB/sec
	Difference: 179456 (1402%)

Texel Rate

The Geforce GTX 760 is quite a bit (about 1860%) better at AF than the Radeon HD 4550 256MB. (explain)

Geforce GTX 760		94080 Mtexels/sec
Radeon HD 4550 256MB		4800 Mtexels/sec
	Difference: 89280 (1860%)

Pixel Rate

If using a high resolution is important to you, then the Geforce GTX 760 is superior to the Radeon HD 4550 256MB, and very much so. (explain)

Geforce GTX 760		31360 Mpixels/sec
Radeon HD 4550 256MB		2400 Mpixels/sec
	Difference: 28960 (1207%)

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 data (measured in megabytes per second) that can be moved over the external memory interface in a second. It's calculated by multiplying the interface width by the speed of its memory. If the card has DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This figure 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 handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.