GeForce GTX 285 2GB vs Radeon HD 6670 (OEM)

Intro

Compare all that to the Radeon HD 6670 (OEM), which uses a 40 nm design. AMD has clocked the core speed at 800 MHz. The GDDR5 RAM runs at a frequency of 1000 MHz on this card. It features 480 SPUs along with 24 TAUs and 8 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6670 (OEM)		63 Watts
GeForce GTX 285 2GB		204 Watts
	Difference: 141 Watts (224%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 285 2GB should theoretically be quite a bit superior to the Radeon HD 6670 (OEM) overall. (explain)

GeForce GTX 285 2GB		158976 MB/sec
Radeon HD 6670 (OEM)		64000 MB/sec
	Difference: 94976 (148%)

Texel Rate

The GeForce GTX 285 2GB should be quite a bit (approximately 170%) faster with regards to texture filtering than the Radeon HD 6670 (OEM). (explain)

GeForce GTX 285 2GB		51840 Mtexels/sec
Radeon HD 6670 (OEM)		19200 Mtexels/sec
	Difference: 32640 (170%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 285 2GB is the winner, and very much so. (explain)

GeForce GTX 285 2GB		20736 Mpixels/sec
Radeon HD 6670 (OEM)		6400 Mpixels/sec
	Difference: 14336 (224%)

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 information (in units of megabytes per second) that can be transported across the external memory interface within a second. The number is worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better 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 in one second. This is worked out by multiplying the total texture units of the card by the core speed of the chip. The higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - aka 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, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.