GeForce GT 220 GDDR3 vs Radeon HD 6450 (OEM) 1GB

Intro

Compare those specifications to the Radeon HD 6450 (OEM) 1GB, which comes with a core clock speed of 750 MHz and a GDDR5 memory frequency of 900 MHz. It also features a 64-bit memory bus, and uses a 40 nm design. It is made up of 160 SPUs, 8 Texture Address Units, and 4 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6450 (OEM) 1GB		31 Watts
GeForce GT 220 GDDR3		58 Watts
	Difference: 27 Watts (87%)

Memory Bandwidth

As far as performance goes, the GeForce GT 220 GDDR3 should theoretically be just a bit better than the Radeon HD 6450 (OEM) 1GB in general. (explain)

GeForce GT 220 GDDR3		32384 MB/sec
Radeon HD 6450 (OEM) 1GB		28800 MB/sec
	Difference: 3584 (12%)

Texel Rate

The GeForce GT 220 GDDR3 is a lot (approximately 67%) faster with regards to texture filtering than the Radeon HD 6450 (OEM) 1GB. (explain)

GeForce GT 220 GDDR3		10000 Mtexels/sec
Radeon HD 6450 (OEM) 1GB		6000 Mtexels/sec
	Difference: 4000 (67%)

Pixel Rate

The GeForce GT 220 GDDR3 should be much (approximately 67%) faster with regards to AA than the Radeon HD 6450 (OEM) 1GB, and also able to handle higher screen resolutions without slowing down too much. (explain)

GeForce GT 220 GDDR3		5000 Mpixels/sec
Radeon HD 6450 (OEM) 1GB		3000 Mpixels/sec
	Difference: 2000 (67%)

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 maximum amount of data (counted in megabytes per second) that can be transported over the external memory interface in a second. The number is worked out by multiplying the interface width by its memory speed. In the case of DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This number 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 card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.