GeForce GT 420 vs Radeon HD 4350

Intro

Compare those specs to the Radeon HD 4350, which features a GPU core clock speed of 575 MHz, and 512 MB of DDR2 RAM set to run at 500 MHz through a 64-bit bus. It also is comprised of 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 4350		22 Watts
GeForce GT 420		50 Watts
	Difference: 28 Watts (127%)

Memory Bandwidth

The GeForce GT 420, in theory, should be a lot faster than the Radeon HD 4350 overall. (explain)

GeForce GT 420		28800 MB/sec
Radeon HD 4350		8000 MB/sec
	Difference: 20800 (260%)

Texel Rate

The GeForce GT 420 should be a lot (more or less 22%) faster with regards to anisotropic filtering than the Radeon HD 4350. (explain)

GeForce GT 420		5600 Mtexels/sec
Radeon HD 4350		4600 Mtexels/sec
	Difference: 1000 (22%)

Pixel Rate

The GeForce GT 420 should be much (approximately 22%) more effective at AA than the Radeon HD 4350, and also should be able to handle higher resolutions better. (explain)

GeForce GT 420		2800 Mpixels/sec
Radeon HD 4350		2300 Mpixels/sec
	Difference: 500 (22%)

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 transferred past the external memory interface within a second. The number is calculated by multiplying the bus width by its memory speed. In the case of DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster 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 texture map elements (texels) that can be applied in one second. This figure is calculated by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.