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GeForce GTX 275 vs GeForce GTX 570

Intro

The GeForce GTX 275 has a GPU core speed of 633 MHz, and the 896 MB of GDDR3 memory is set to run at 1134 MHz through a 448-bit bus. It also is comprised of 240 SPUs, 80 Texture Address Units, and 28 Raster Operation Units.

Compare those specifications to the GeForce GTX 570, which features a core clock frequency of 732 MHz and a GDDR5 memory frequency of 950 MHz. It also makes use of a 320-bit memory bus, and uses a 40 nm design. It is made up of 480 SPUs, 60 TAUs, and 40 ROPs.

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Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

Performance-wise, the GeForce GTX 570 should theoretically be a small bit superior to the GeForce GTX 275 overall. (explain)

GeForce GTX 570 152000 MB/sec
GeForce GTX 275 127008 MB/sec
Difference: 24992 (20%)

Texel Rate

The GeForce GTX 275 will be a little bit (more or less 15%) better at anisotropic filtering than the GeForce GTX 570. (explain)

GeForce GTX 275 50640 Mtexels/sec
GeForce GTX 570 43920 Mtexels/sec
Difference: 6720 (15%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 570 is a better choice, by far. (explain)

GeForce GTX 570 29280 Mpixels/sec
GeForce GTX 275 17724 Mpixels/sec
Difference: 11556 (65%)

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 275

Amazon.com

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GeForce GTX 570

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 275 GeForce GTX 570
Manufacturer nVidia nVidia
Year April 9, 2009 December 2010
Code Name G200b GF110
Memory 896 MB 1280 MB
Core Speed 633 MHz 732 MHz
Memory Speed 2268 MHz 3800 MHz
Power (Max TDP) 219 watts 219 watts
Bandwidth 127008 MB/sec 152000 MB/sec
Texel Rate 50640 Mtexels/sec 43920 Mtexels/sec
Pixel Rate 17724 Mpixels/sec 29280 Mpixels/sec
Unified Shaders 240 480
Texture Mapping Units 80 60
Render Output Units 28 40
Bus Type GDDR3 GDDR5
Bus Width 448-bit 320-bit
Fab Process 55 nm 40 nm
Transistors 1400 million 3000 million
Bus PCIe x16 2.0 PCIe x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.1 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the largest amount of data (counted in MB per second) that can be moved over the external memory interface in one second. It's calculated by multiplying the card's bus width by its memory speed. If it uses DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better 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 applied in one second. This number is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher 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 most pixels the video 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 ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant 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.

Display Prices

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GeForce GTX 275

Amazon.com

Check prices at:

GeForce GTX 570

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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