GeForce GTX 650 Ti vs Radeon HD 4550 512MB

Intro

Compare those specs to the Radeon HD 4550 512MB, which has core clock speeds of 600 MHz on the GPU, and 800 MHz on the 512 MB of GDDR3 memory. It features 80(16x5) SPUs as well as 8 TAUs and 4 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4550 512MB		25 Watts
GeForce GTX 650 Ti		110 Watts
	Difference: 85 Watts (340%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 650 Ti should be much faster than the Radeon HD 4550 512MB in general. (explain)

GeForce GTX 650 Ti		86400 MB/sec
Radeon HD 4550 512MB		12800 MB/sec
	Difference: 73600 (575%)

Texel Rate

The GeForce GTX 650 Ti is quite a bit (more or less 1137%) faster with regards to texture filtering than the Radeon HD 4550 512MB. (explain)

GeForce GTX 650 Ti		59392 Mtexels/sec
Radeon HD 4550 512MB		4800 Mtexels/sec
	Difference: 54592 (1137%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 650 Ti is a better choice, by a large margin. (explain)

GeForce GTX 650 Ti		14848 Mpixels/sec
Radeon HD 4550 512MB		2400 Mpixels/sec
	Difference: 12448 (519%)

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 (measured in megabytes per second) that can be transported past the external memory interface in a second. The number is calculated by multiplying the interface width by its memory clock speed. In the case of DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The higher this number, the better the graphics 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 the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.