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GeForce GTX 570 vs Radeon HD 6770

Intro

The GeForce GTX 570 features a clock frequency of 732 MHz and a GDDR5 memory speed of 950 MHz. It also features a 320-bit memory bus, and uses a 40 nm design. It features 480 SPUs, 60 Texture Address Units, and 40 ROPs.

Compare that to the Radeon HD 6770, which features a GPU core clock speed of 900 MHz, and 512 MB of GDDR5 RAM running at 1050 MHz through a 128-bit bus. It also is made up of 800 SPUs, 40 Texture Address Units, and 16 Raster Operation 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 570 4387 points
Radeon HD 6770 1520 points
Difference: 2867 (189%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6770 108 Watts
GeForce GTX 570 219 Watts
Difference: 111 Watts (103%)

Memory Bandwidth

The GeForce GTX 570, in theory, should be a lot faster than the Radeon HD 6770 in general. (explain)

GeForce GTX 570 152000 MB/sec
Radeon HD 6770 67200 MB/sec
Difference: 84800 (126%)

Texel Rate

The GeForce GTX 570 is quite a bit (about 22%) more effective at anisotropic filtering than the Radeon HD 6770. (explain)

GeForce GTX 570 43920 Mtexels/sec
Radeon HD 6770 36000 Mtexels/sec
Difference: 7920 (22%)

Pixel Rate

The GeForce GTX 570 is a lot (approximately 103%) faster with regards to full screen anti-aliasing than the Radeon HD 6770, and also capable of handling higher screen resolutions without losing too much performance. (explain)

GeForce GTX 570 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 570

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 570 Radeon HD 6770
Manufacturer nVidia AMD
Year December 2010 January 2011
Code Name GF110 Juniper XT
Memory 1280 MB 512 MB
Core Speed 732 MHz 900 MHz
Memory Speed 3800 MHz 4200 MHz
Power (Max TDP) 219 watts 108 watts
Bandwidth 152000 MB/sec 67200 MB/sec
Texel Rate 43920 Mtexels/sec 36000 Mtexels/sec
Pixel Rate 29280 Mpixels/sec 14400 Mpixels/sec
Unified Shaders 480 800
Texture Mapping Units 60 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 x16 PCIe x16
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 4.1 OpenGL 4.1

Memory Bandwidth: Bandwidth is the max amount of data (counted in MB per second) that can be moved past the external memory interface within a second. It's worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This figure is worked out by multiplying the total texture units of the card by the core speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

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GeForce GTX 570

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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