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

Intro

Compare all of that to the Radeon HD 6670 (OEM) 1GB, which comes with a GPU core clock speed of 800 MHz, and 1024 MB of GDDR5 memory set to run at 1000 MHz through a 128-bit bus. It also is comprised of 480 Stream Processors, 24 Texture Address Units, and 8 ROPs.

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 should be much faster than the GeForce 8300 GS (OEM) overall. (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 is much (approximately 967%) more effective at AF 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 using a high screen resolution is important to you, then the Radeon HD 6670 (OEM) 1GB is superior to the GeForce 8300 GS (OEM), and very much so. (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 max amount of information (in units of MB per second) that can be transferred past the external memory interface in a second. It is worked out by multiplying the card's interface width by its memory speed. In the case of DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better 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 amount of texture map elements (texels) that are processed per second. This figure is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The better this number, the better the video card will be at handling 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 can possibly write to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.