GeForce 8300 GS (OEM) vs Radeon HD 6670 (OEM)

Intro

Compare that to the Radeon HD 6670 (OEM), which has a GPU core clock speed of 800 MHz, and 512 MB of GDDR5 RAM running at 1000 MHz through a 128-bit bus. It also features 480 SPUs, 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 6670 (OEM)		63 Watts
	Difference: 23 Watts (58%)

Memory Bandwidth

In theory, the Radeon HD 6670 (OEM) should perform quite a bit faster than the GeForce 8300 GS (OEM) overall. (explain)

Radeon HD 6670 (OEM)		64000 MB/sec
GeForce 8300 GS (OEM)		6400 MB/sec
	Difference: 57600 (900%)

Texel Rate

The Radeon HD 6670 (OEM) will be quite a bit (more or less 967%) more effective at AF than the GeForce 8300 GS (OEM). (explain)

Radeon HD 6670 (OEM)		19200 Mtexels/sec
GeForce 8300 GS (OEM)		1800 Mtexels/sec
	Difference: 17400 (967%)

Pixel Rate

The Radeon HD 6670 (OEM) is much (approximately 611%) better at FSAA than the GeForce 8300 GS (OEM), and also should be able to handle higher resolutions without losing too much performance. (explain)

Radeon HD 6670 (OEM)		6400 Mpixels/sec
GeForce 8300 GS (OEM)		900 Mpixels/sec
	Difference: 5500 (611%)

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 largest amount of data (in units of megabytes per second) that can be transferred past the external memory interface within a second. The number is worked out by multiplying the interface width by its memory clock speed. In the case of DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This number is calculated by multiplying the total texture units of the card by the core speed of the chip. The higher the texel rate, the better the video 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 amount of pixels that the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the the core clock speed. 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 also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.