GeForce 8300 GS (OEM) vs Radeon HD 6670 (OEM) 1GB

Intro

Compare those specifications to the Radeon HD 6670 (OEM) 1GB, which uses a 40 nm design. AMD has clocked the core speed at 800 MHz. The GDDR5 memory runs at a speed of 1000 MHz on this specific model. It features 480 SPUs along with 24 TAUs and 8 Rasterization Operator 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) 1GB		63 Watts
	Difference: 23 Watts (58%)

Memory Bandwidth

In theory, the Radeon HD 6670 (OEM) 1GB is 900% faster than the GeForce 8300 GS (OEM) overall, because of its greater bandwidth. (explain)

Radeon HD 6670 (OEM) 1GB		64000 MB/sec
GeForce 8300 GS (OEM)		6400 MB/sec
	Difference: 57600 (900%)

Texel Rate

The Radeon HD 6670 (OEM) 1GB will be a lot (more or less 967%) faster with regards to texture filtering than the GeForce 8300 GS (OEM). (explain)

Radeon HD 6670 (OEM) 1GB		19200 Mtexels/sec
GeForce 8300 GS (OEM)		1800 Mtexels/sec
	Difference: 17400 (967%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon HD 6670 (OEM) 1GB is the winner, by far. (explain)

Radeon HD 6670 (OEM) 1GB		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 maximum amount of information (measured in megabytes per second) that can be transferred over the external memory interface in one second. It's worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better 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 amount of texture map elements (texels) that are processed in one second. This is worked out 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 handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the the core clock speed. 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 rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.