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GeForce GTX 275 vs GeForce GTX 460 (OEM)

Intro

The GeForce GTX 275 has a core clock speed of 633 MHz and a GDDR3 memory speed of 1134 MHz. It also features a 448-bit bus, and makes use of a 55 nm design. It features 240 SPUs, 80 Texture Address Units, and 28 ROPs.

Compare all that to the GeForce GTX 460 (OEM), which has a clock speed of 650 MHz and a GDDR5 memory speed of 850 MHz. It also makes use of a 256-bit memory bus, and uses a 40 nm design. It is made up of 336 SPUs, 56 TAUs, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 460 (OEM) 150 Watts
GeForce GTX 275 219 Watts
Difference: 69 Watts (46%)

Memory Bandwidth

Performance-wise, the GeForce GTX 275 should theoretically be a bit superior to the GeForce GTX 460 (OEM) in general. (explain)

GeForce GTX 275 127008 MB/sec
GeForce GTX 460 (OEM) 108800 MB/sec
Difference: 18208 (17%)

Texel Rate

The GeForce GTX 275 will be quite a bit (approximately 39%) better at texture filtering than the GeForce GTX 460 (OEM). (explain)

GeForce GTX 275 50640 Mtexels/sec
GeForce GTX 460 (OEM) 36400 Mtexels/sec
Difference: 14240 (39%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 460 (OEM) is superior to the GeForce GTX 275, but not by far. (explain)

GeForce GTX 460 (OEM) 20800 Mpixels/sec
GeForce GTX 275 17724 Mpixels/sec
Difference: 3076 (17%)

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 460 (OEM)

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 460 (OEM)
Manufacturer nVidia nVidia
Year April 9, 2009 October 2010
Code Name G200b GF104
Memory 896 MB 1024 MB
Core Speed 633 MHz 650 MHz
Memory Speed 2268 MHz 3400 MHz
Power (Max TDP) 219 watts 150 watts
Bandwidth 127008 MB/sec 108800 MB/sec
Texel Rate 50640 Mtexels/sec 36400 Mtexels/sec
Pixel Rate 17724 Mpixels/sec 20800 Mpixels/sec
Unified Shaders 240 336
Texture Mapping Units 80 56
Render Output Units 28 32
Bus Type GDDR3 GDDR5
Bus Width 448-bit 256-bit
Fab Process 55 nm 40 nm
Transistors 1400 million 1950 million
Bus PCIe x16 2.0 PCIe x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.1 OpenGL 4.1

Memory Bandwidth: Bandwidth is the maximum amount of information (counted in MB per second) that can be moved across the external memory interface in one second. It is calculated by multiplying the card's interface width by its memory clock speed. If it uses DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This number is calculated by multiplying the total texture units by the core clock speed of the chip. The higher this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card 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 ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

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GeForce GTX 275

Amazon.com

Check prices at:

GeForce GTX 460 (OEM)

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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