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GeForce GTX 260 vs GeForce GTX 550 Ti

Intro

The GeForce GTX 260 uses a 65 nm design. nVidia has clocked the core speed at 576 MHz. The GDDR3 RAM runs at a frequency of 999 MHz on this particular model. It features 192 SPUs along with 64 TAUs and 28 Rasterization Operator Units.

Compare that to the GeForce GTX 550 Ti, which has GPU core speed of 900 MHz, and 1024 MB of GDDR5 RAM set to run at 1026 MHz through a 192-bit bus. It also is comprised of 192 Stream Processors, 32 TAUs, and 24 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 550 Ti 116 Watts
GeForce GTX 260 182 Watts
Difference: 66 Watts (57%)

Memory Bandwidth

In theory, the GeForce GTX 260 should perform a bit faster than the GeForce GTX 550 Ti overall. (explain)

GeForce GTX 260 111888 MB/sec
GeForce GTX 550 Ti 98496 MB/sec
Difference: 13392 (14%)

Texel Rate

The GeForce GTX 260 should be much (approximately 28%) faster with regards to texture filtering than the GeForce GTX 550 Ti. (explain)

GeForce GTX 260 36864 Mtexels/sec
GeForce GTX 550 Ti 28800 Mtexels/sec
Difference: 8064 (28%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 550 Ti is a better choice, by far. (explain)

GeForce GTX 550 Ti 21600 Mpixels/sec
GeForce GTX 260 16128 Mpixels/sec
Difference: 5472 (34%)

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 260

Amazon.com

GeForce GTX 550 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

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Model GeForce GTX 260 GeForce GTX 550 Ti
Manufacturer nVidia nVidia
Year June 16, 2008 March 2011
Code Name G200 GF116
Memory 896 MB 1024 MB
Core Speed 576 MHz 900 MHz
Memory Speed 1998 MHz 4104 MHz
Power (Max TDP) 182 watts 116 watts
Bandwidth 111888 MB/sec 98496 MB/sec
Texel Rate 36864 Mtexels/sec 28800 Mtexels/sec
Pixel Rate 16128 Mpixels/sec 21600 Mpixels/sec
Unified Shaders 192 192
Texture Mapping Units 64 32
Render Output Units 28 24
Bus Type GDDR3 GDDR5
Bus Width 448-bit 192-bit
Fab Process 65 nm 40 nm
Transistors 1400 million 1170 million
Bus PCIe x16 2.0 PCIe 2.1 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 past the external memory interface in one second. It's calculated by multiplying the interface width by its memory speed. If the card has DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. 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 amount of texture map elements (texels) that can be processed in one second. This figure is calculated by multiplying the total texture units of the card by the core speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the the card's clock speed. 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 also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.

Comments

One Response to “GeForce GTX 260 vs GeForce GTX 550 Ti”
Good GTX260 upgrade? - ABXZone Computer Forums says:

[...] Good GTX260 upgrade? Some more GeForce GTX 260 vs GeForce GTX 550 Ti – Performance Comparison Benchmarks @ Hardware Compare Btw when my Asus 470 broke they offered me a GTX 550 TI for trade (which I didn't take but that's [...]

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