GeForce 9800 GTX+ vs Radeon HD 6570 (OEM) 1GB

Intro

Compare those specs to the Radeon HD 6570 (OEM) 1GB, which features a clock frequency of 650 MHz and a GDDR3 memory speed of 900 MHz. It also features a 128-bit memory bus, and makes use of a 40 nm design. It is comprised 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 6570 (OEM) 1GB		50 Watts
GeForce 9800 GTX+		145 Watts
	Difference: 95 Watts (190%)

Memory Bandwidth

The GeForce 9800 GTX+, in theory, should perform a lot faster than the Radeon HD 6570 (OEM) 1GB in general. (explain)

GeForce 9800 GTX+		70400 MB/sec
Radeon HD 6570 (OEM) 1GB		28800 MB/sec
	Difference: 41600 (144%)

Texel Rate

The GeForce 9800 GTX+ is a lot (more or less 203%) better at AF than the Radeon HD 6570 (OEM) 1GB. (explain)

GeForce 9800 GTX+		47232 Mtexels/sec
Radeon HD 6570 (OEM) 1GB		15600 Mtexels/sec
	Difference: 31632 (203%)

Pixel Rate

The GeForce 9800 GTX+ is much (approximately 127%) better at anti-aliasing than the Radeon HD 6570 (OEM) 1GB, and also capable of handling higher resolutions without slowing down too much. (explain)

GeForce 9800 GTX+		11808 Mpixels/sec
Radeon HD 6570 (OEM) 1GB		5200 Mpixels/sec
	Difference: 6608 (127%)

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 maximum amount of information (counted in megabytes per second) that can be transferred over the external memory interface within a second. It is worked out by multiplying the interface width by its memory speed. In the case of DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range 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 worked out by multiplying the total texture units of the card by the core clock speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.