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GeForce GTX 560 Ti 448 vs Radeon HD 6770

Intro

The GeForce GTX 560 Ti 448 features a core clock speed of 732 MHz and a GDDR5 memory speed of 900 MHz. It also uses a 320-bit memory bus, and makes use of a 40 nm design. It is made up of 448 SPUs, 56 Texture Address Units, and 40 Raster Operation Units.

Compare those specifications to the Radeon HD 6770, which makes use of a 40 nm design. AMD has set the core frequency at 900 MHz. The GDDR5 RAM runs at a frequency of 1050 MHz on this particular card. It features 800 SPUs as well as 40 TAUs and 16 Rasterization Operator Units.

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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 6770 1520 points
Difference: 2680 (176%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6770 108 Watts
GeForce GTX 560 Ti 448 210 Watts
Difference: 102 Watts (94%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 560 Ti 448 will be 114% faster than the Radeon HD 6770 in general, due to its greater bandwidth. (explain)

GeForce GTX 560 Ti 448 144000 MB/sec
Radeon HD 6770 67200 MB/sec
Difference: 76800 (114%)

Texel Rate

The GeForce GTX 560 Ti 448 is a small bit (more or less 14%) more effective at anisotropic filtering than the Radeon HD 6770. (explain)

GeForce GTX 560 Ti 448 40992 Mtexels/sec
Radeon HD 6770 36000 Mtexels/sec
Difference: 4992 (14%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 560 Ti 448 is superior to the Radeon HD 6770, by far. (explain)

GeForce GTX 560 Ti 448 29280 Mpixels/sec
Radeon HD 6770 14400 Mpixels/sec
Difference: 14880 (103%)

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

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GeForce GTX 560 Ti 448

Amazon.com

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Radeon HD 6770

Amazon.com

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Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model GeForce GTX 560 Ti 448 Radeon HD 6770
Manufacturer nVidia AMD
Year December 2011 January 2011
Code Name GF110 Juniper XT
Memory 1280 MB 512 MB
Core Speed 732 MHz 900 MHz
Memory Speed 3600 MHz 4200 MHz
Power (Max TDP) 210 watts 108 watts
Bandwidth 144000 MB/sec 67200 MB/sec
Texel Rate 40992 Mtexels/sec 36000 Mtexels/sec
Pixel Rate 29280 Mpixels/sec 14400 Mpixels/sec
Unified Shaders 448 800
Texture Mapping Units 56 40
Render Output Units 40 16
Bus Type GDDR5 GDDR5
Bus Width 320-bit 128-bit
Fab Process 40 nm 40 nm
Transistors 3000 million 1040 million
Bus PCIe 2.0 x16 PCIe x16
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 4.2 OpenGL 4.1

Memory Bandwidth: Bandwidth is the maximum amount of information (measured in MB per second) that can be transported across the external memory interface in a second. It is calculated by multiplying the bus width by the speed of its memory. If the card has DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. 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 texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the clock 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 rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

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GeForce GTX 560 Ti 448

Amazon.com

Check prices at:

Radeon HD 6770

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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