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GeForce GTX 275 vs GeForce GTX 470

Intro

The GeForce GTX 275 makes use of a 55 nm design. nVidia has clocked the core frequency at 633 MHz. The GDDR3 RAM runs at a speed of 1134 MHz on this particular model. It features 240 SPUs along with 80 TAUs and 28 Rasterization Operator Units.

Compare those specifications to the GeForce GTX 470, which comes with a core clock speed of 607 MHz and a GDDR5 memory speed of 837 MHz. It also makes use of a 320-bit bus, and makes use of a 40 nm design. It is comprised of 448 SPUs, 56 Texture Address Units, and 40 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 470 215 Watts
GeForce GTX 275 219 Watts
Difference: 4 Watts (2%)

Memory Bandwidth

Theoretically, the GeForce GTX 470 should perform just a bit faster than the GeForce GTX 275 in general. (explain)

GeForce GTX 470 133920 MB/sec
GeForce GTX 275 127008 MB/sec
Difference: 6912 (5%)

Texel Rate

The GeForce GTX 275 is much (about 49%) more effective at anisotropic filtering than the GeForce GTX 470. (explain)

GeForce GTX 275 50640 Mtexels/sec
GeForce GTX 470 33992 Mtexels/sec
Difference: 16648 (49%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 470 is superior to the GeForce GTX 275, by far. (explain)

GeForce GTX 470 24280 Mpixels/sec
GeForce GTX 275 17724 Mpixels/sec
Difference: 6556 (37%)

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

Check prices at:

GeForce GTX 470

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.

Specifications

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Model GeForce GTX 275 GeForce GTX 470
Manufacturer nVidia nVidia
Year April 9, 2009 March 2010
Code Name G200b GF100
Memory 896 MB 1280 MB
Core Speed 633 MHz 607 MHz
Memory Speed 2268 MHz 3348 MHz
Power (Max TDP) 219 watts 215 watts
Bandwidth 127008 MB/sec 133920 MB/sec
Texel Rate 50640 Mtexels/sec 33992 Mtexels/sec
Pixel Rate 17724 Mpixels/sec 24280 Mpixels/sec
Unified Shaders 240 448
Texture Mapping Units 80 56
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 information (counted in MB per second) that can be transferred across the external memory interface within a second. It is worked out by multiplying the card's bus width by the speed of its memory. If it uses DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This number 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 processed in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount 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 outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

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GeForce GTX 275

Amazon.com

Check prices at:

GeForce GTX 470

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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