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

Intro

Compare that to the Radeon HD 6670 (OEM) 1GB, which uses a 40 nm design. AMD has clocked the core frequency at 800 MHz. The GDDR5 memory works at a speed of 1000 MHz on this card. It features 480 SPUs along with 24 TAUs and 8 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6670 (OEM) 1GB		63 Watts
GeForce 9800 GTX		140 Watts
	Difference: 77 Watts (122%)

Memory Bandwidth

The GeForce 9800 GTX, in theory, should be a little bit faster than the Radeon HD 6670 (OEM) 1GB overall. (explain)

GeForce 9800 GTX		70400 MB/sec
Radeon HD 6670 (OEM) 1GB		64000 MB/sec
	Difference: 6400 (10%)

Texel Rate

The GeForce 9800 GTX is much (about 125%) faster with regards to anisotropic filtering than the Radeon HD 6670 (OEM) 1GB. (explain)

GeForce 9800 GTX		43200 Mtexels/sec
Radeon HD 6670 (OEM) 1GB		19200 Mtexels/sec
	Difference: 24000 (125%)

Pixel Rate

If using a high resolution is important to you, then the GeForce 9800 GTX is superior to the Radeon HD 6670 (OEM) 1GB, by far. (explain)

GeForce 9800 GTX		10800 Mpixels/sec
Radeon HD 6670 (OEM) 1GB		6400 Mpixels/sec
	Difference: 4400 (69%)

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: Memory bandwidth is the largest amount of information (in units of MB per second) that can be transported across the external memory interface within a second. It's worked out by multiplying the bus width by its memory clock speed. If the card has DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The better this number, 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 most pixels the video card can possibly write to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the card's 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 output rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.