GeForce 8300 GS (OEM) vs Radeon HD 6570 (OEM) 2GB

Intro

Compare that to the Radeon HD 6570 (OEM) 2GB, which features a GPU core clock speed of 650 MHz, and 1024 MB of GDDR5 RAM set to run at 1000 MHz through a 128-bit bus. It also features 480 Stream Processors, 24 Texture Address Units, and 8 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8300 GS (OEM)		40 Watts
Radeon HD 6570 (OEM) 2GB		50 Watts
	Difference: 10 Watts (25%)

Memory Bandwidth

The Radeon HD 6570 (OEM) 2GB, in theory, should be quite a bit faster than the GeForce 8300 GS (OEM) in general. (explain)

Radeon HD 6570 (OEM) 2GB		64000 MB/sec
GeForce 8300 GS (OEM)		6400 MB/sec
	Difference: 57600 (900%)

Texel Rate

The Radeon HD 6570 (OEM) 2GB will be quite a bit (more or less 767%) more effective at AF than the GeForce 8300 GS (OEM). (explain)

Radeon HD 6570 (OEM) 2GB		15600 Mtexels/sec
GeForce 8300 GS (OEM)		1800 Mtexels/sec
	Difference: 13800 (767%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon HD 6570 (OEM) 2GB is the winner, by far. (explain)

Radeon HD 6570 (OEM) 2GB		5200 Mpixels/sec
GeForce 8300 GS (OEM)		900 Mpixels/sec
	Difference: 4300 (478%)

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 (in units of MB per second) that can be transferred past the external memory interface within a second. The number is calculated by multiplying the card's interface width by the speed of its memory. If the card has DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This number is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units 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 is also dependant 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 maximum fill rate.