GeForce GTX 560 Ti 448 vs Radeon HD 6850

Intro

Compare all that to the Radeon HD 6850, which comes with GPU core speed of 775 MHz, and 1024 MB of GDDR5 memory running at 1000 MHz through a 256-bit bus. It also is made up of 960 SPUs, 48 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

GeForce GTX 560 Ti 448		4200 points
Radeon HD 6850		2395 points
	Difference: 1805 (75%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6850		127 Watts
GeForce GTX 560 Ti 448		210 Watts
	Difference: 83 Watts (65%)

Memory Bandwidth

Theoretically, the GeForce GTX 560 Ti 448 should be a bit faster than the Radeon HD 6850 overall. (explain)

GeForce GTX 560 Ti 448		144000 MB/sec
Radeon HD 6850		128000 MB/sec
	Difference: 16000 (13%)

Texel Rate

The GeForce GTX 560 Ti 448 should be just a bit (more or less 10%) more effective at texture filtering than the Radeon HD 6850. (explain)

GeForce GTX 560 Ti 448		40992 Mtexels/sec
Radeon HD 6850		37200 Mtexels/sec
	Difference: 3792 (10%)

Pixel Rate

The GeForce GTX 560 Ti 448 should be a bit (approximately 18%) better at full screen anti-aliasing than the Radeon HD 6850, and will be capable of handling higher resolutions while still performing well. (explain)

GeForce GTX 560 Ti 448		29280 Mpixels/sec
Radeon HD 6850		24800 Mpixels/sec
	Difference: 4480 (18%)

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 max amount of data (in units of MB per second) that can be transferred past the external memory interface in one second. The number is worked out by multiplying the card's bus width by the speed of its memory. If it uses DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The better this number, 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 amount of pixels that the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.