GeForce 9800 GT 1GB vs Radeon HD 6670 (OEM)

Intro

Compare all 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 is made up of 480 SPUs, 24 TAUs, and 8 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6670 (OEM)		63 Watts
GeForce 9800 GT 1GB		105 Watts
	Difference: 42 Watts (67%)

Memory Bandwidth

Performance-wise, the Radeon HD 6670 (OEM) should theoretically be a little bit better than the GeForce 9800 GT 1GB overall. (explain)

Radeon HD 6670 (OEM)		64000 MB/sec
GeForce 9800 GT 1GB		57600 MB/sec
	Difference: 6400 (11%)

Texel Rate

The GeForce 9800 GT 1GB is a lot (more or less 75%) faster with regards to texture filtering than the Radeon HD 6670 (OEM). (explain)

GeForce 9800 GT 1GB		33600 Mtexels/sec
Radeon HD 6670 (OEM)		19200 Mtexels/sec
	Difference: 14400 (75%)

Pixel Rate

The GeForce 9800 GT 1GB is quite a bit (approximately 50%) faster with regards to AA than the Radeon HD 6670 (OEM), and will be able to handle higher screen resolutions better. (explain)

GeForce 9800 GT 1GB		9600 Mpixels/sec
Radeon HD 6670 (OEM)		6400 Mpixels/sec
	Difference: 3200 (50%)

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 over the external memory interface in one second. It's calculated by multiplying the bus width by its memory speed. If it uses DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This figure 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 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 chip can possibly record to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the card's 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 fill rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.