GeForce GTX 650 Ti vs Radeon HD 6850

Intro

Compare those specs to the Radeon HD 6850, which features a core clock frequency of 775 MHz and a GDDR5 memory frequency of 1000 MHz. It also features a 256-bit memory bus, and uses a 40 nm design. It is made up of 960 SPUs, 48 TAUs, and 32 ROPs.

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 650 Ti		3434 points
Radeon HD 6850		2395 points
	Difference: 1039 (43%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650 Ti		110 Watts
Radeon HD 6850		127 Watts
	Difference: 17 Watts (15%)

Memory Bandwidth

The Radeon HD 6850 should theoretically perform quite a bit faster than the GeForce GTX 650 Ti in general. (explain)

Radeon HD 6850		128000 MB/sec
GeForce GTX 650 Ti		86400 MB/sec
	Difference: 41600 (48%)

Texel Rate

The GeForce GTX 650 Ti should be much (about 60%) better at texture filtering than the Radeon HD 6850. (explain)

GeForce GTX 650 Ti		59392 Mtexels/sec
Radeon HD 6850		37200 Mtexels/sec
	Difference: 22192 (60%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon HD 6850 is the winner, by far. (explain)

Radeon HD 6850		24800 Mpixels/sec
GeForce GTX 650 Ti		14848 Mpixels/sec
	Difference: 9952 (67%)

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 information (measured in MB per second) that can be transferred over the external memory interface in one second. It is worked out by multiplying the bus width by its memory clock speed. If it uses DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with AA, 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 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 in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.