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GeForce GTX 260 vs GeForce GTX 550 Ti

Intro

The GeForce GTX 260 comes with core speeds of 576 MHz on the GPU, and 999 MHz on the 896 MB of GDDR3 RAM. It features 192 SPUs as well as 64 TAUs and 28 ROPs.

Compare all that to the GeForce GTX 550 Ti, which makes use of a 40 nm design. nVidia has clocked the core frequency at 900 MHz. The GDDR5 RAM runs at a frequency of 1026 MHz on this specific card. It features 192 SPUs as well as 32 TAUs and 24 Rasterization Operator Units.

(No game benchmarks for this combination yet.)

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

The GeForce GTX 260, in theory, should be a little 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 is quite a bit (more or less 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

The GeForce GTX 550 Ti will be much (more or less 34%) faster with regards to full screen anti-aliasing than the GeForce GTX 260, and able to handle higher screen resolutions while still performing well. (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

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

Model GeForce GTX 260 GeForce GTX 550 Ti
Manufacturer nVidia nVidia
Year June 16, 2008 March 2011
Code Name G200 GF116
Fab Process 65 nm 40 nm
Bus PCIe x16 2.0 PCIe 2.1 x16
Memory 896 MB 1024 MB
Core Speed 576 MHz 900 MHz
Shader Speed 1242 MHz 1800 MHz
Memory Speed 999 MHz (1998 MHz effective) 1026 MHz (4104 MHz effective)
Unified Shaders 192 192
Texture Mapping Units 64 32
Render Output Units 28 24
Bus Type GDDR3 GDDR5
Bus Width 448-bit 192-bit
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.1 OpenGL 4.1
Power (Max TDP) 182 watts 116 watts
Shader Model 4.0 5.0
Bandwidth 111888 MB/sec 98496 MB/sec
Texel Rate 36864 Mtexels/sec 28800 Mtexels/sec
Pixel Rate 16128 Mpixels/sec 21600 Mpixels/sec

Memory Bandwidth: Bandwidth is the maximum amount of data (measured in megabytes per second) that can be transported across the external memory interface in one second. It is calculated by multiplying the interface width by its memory clock speed. In the case of DDR memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This figure is worked out by multiplying the total amount of texture units by the core speed of the chip. The better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth - the lower the 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? 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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