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GeForce GTX 275 vs GeForce GTX 560 Ti

Intro

The GeForce GTX 275 comes with a clock frequency of 633 MHz and a GDDR3 memory speed of 1134 MHz. It also uses a 448-bit memory bus, and makes use of a 55 nm design. It features 240 SPUs, 80 Texture Address Units, and 28 Raster Operation Units.

Compare those specs to the GeForce GTX 560 Ti, which makes use of a 40 nm design. nVidia has clocked the core frequency at 822 MHz. The GDDR5 RAM works at a frequency of 1002 MHz on this particular card. It features 384 SPUs as well as 64 TAUs and 32 Rasterization Operator Units.

(No game benchmarks for this combination yet.)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 560 Ti 170 Watts
GeForce GTX 275 219 Watts
Difference: 49 Watts (29%)

Memory Bandwidth

Theoretically, the GeForce GTX 560 Ti should be just a bit faster than the GeForce GTX 275 overall. (explain)

GeForce GTX 560 Ti 128256 MB/sec
GeForce GTX 275 127008 MB/sec
Difference: 1248 (1%)

Texel Rate

The GeForce GTX 560 Ti should be a little bit (more or less 4%) faster with regards to texture filtering than the GeForce GTX 275. (explain)

GeForce GTX 560 Ti 52608 Mtexels/sec
GeForce GTX 275 50640 Mtexels/sec
Difference: 1968 (4%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 560 Ti is superior to the GeForce GTX 275, by a large margin. (explain)

GeForce GTX 560 Ti 26304 Mpixels/sec
GeForce GTX 275 17724 Mpixels/sec
Difference: 8580 (48%)

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

GeForce GTX 275

Amazon.com

GeForce GTX 560 Ti

Amazon.com

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

Model GeForce GTX 275 GeForce GTX 560 Ti
Manufacturer nVidia nVidia
Year April 9, 2009 January 2011
Code Name G200b GF114
Fab Process 55 nm 40 nm
Bus PCIe x16 2.0 PCIe x16
Memory 896 MB 1024 MB
Core Speed 633 MHz 822 MHz
Shader Speed 1404 MHz 1645 MHz
Memory Speed 1134 MHz (2268 MHz effective) 1002 MHz (4008 MHz effective)
Unified Shaders 240 384
Texture Mapping Units 80 64
Render Output Units 28 32
Bus Type GDDR3 GDDR5
Bus Width 448-bit 256-bit
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.1 OpenGL 4.1
Power (Max TDP) 219 watts 170 watts
Shader Model 4.0 5.0
Bandwidth 127008 MB/sec 128256 MB/sec
Texel Rate 50640 Mtexels/sec 52608 Mtexels/sec
Pixel Rate 17724 Mpixels/sec 26304 Mpixels/sec

Memory Bandwidth: Bandwidth is the largest amount of data (in units of megabytes per second) that can be transported over the external memory interface in a second. The number is calculated by multiplying the bus width by the speed of its memory. In the case of DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number 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 clock speed of the chip. The better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the the core clock speed. 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 fill rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

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