GeForce GT 220 GDDR3 vs Radeon HD 6450 (OEM)

Intro

Compare that to the Radeon HD 6450 (OEM), which comes with GPU core speed of 625 MHz, and 512 MB of GDDR3 RAM set to run at 800 MHz through a 64-bit bus. It also features 160 Stream Processors, 8 Texture Address Units, and 4 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

The GeForce GT 220 GDDR3 should in theory be quite a bit faster than the Radeon HD 6450 (OEM) overall. (explain)

GeForce GT 220 GDDR3		32384 MB/sec
Radeon HD 6450 (OEM)		12800 MB/sec
	Difference: 19584 (153%)

Texel Rate

The GeForce GT 220 GDDR3 is a lot (about 100%) better at texture filtering than the Radeon HD 6450 (OEM). (explain)

GeForce GT 220 GDDR3		10000 Mtexels/sec
Radeon HD 6450 (OEM)		5000 Mtexels/sec
	Difference: 5000 (100%)

Pixel Rate

The GeForce GT 220 GDDR3 is quite a bit (more or less 100%) more effective at FSAA than the Radeon HD 6450 (OEM), and capable of handling higher resolutions better. (explain)

GeForce GT 220 GDDR3		5000 Mpixels/sec
Radeon HD 6450 (OEM)		2500 Mpixels/sec
	Difference: 2500 (100%)

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 max amount of data (measured in megabytes per second) that can be transferred over the external memory interface in one second. It is 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 again. If 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, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This is calculated by multiplying the total amount of texture units by the core speed of the chip. The better this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a 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 figure is calculated by multiplying the number of ROPs by the clock speed of the card. 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 output rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.