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GeForce GTX 470 vs GeForce GTX 550 Ti

Intro

The GeForce GTX 470 has a GPU core speed of 607 MHz, and the 1280 MB of GDDR5 memory is set to run at 837 MHz through a 320-bit bus. It also is made up of 448 Stream Processors, 56 Texture Address Units, and 40 ROPs.

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

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 550 Ti 116 Watts
GeForce GTX 470 215 Watts
Difference: 99 Watts (85%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 470 should perform much faster than the GeForce GTX 550 Ti in general. (explain)

GeForce GTX 470 133920 MB/sec
GeForce GTX 550 Ti 98496 MB/sec
Difference: 35424 (36%)

Texel Rate

The GeForce GTX 470 is a bit (approximately 18%) faster with regards to AF than the GeForce GTX 550 Ti. (explain)

GeForce GTX 470 33992 Mtexels/sec
GeForce GTX 550 Ti 28800 Mtexels/sec
Difference: 5192 (18%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 470 is the winner, but not by far. (explain)

GeForce GTX 470 24280 Mpixels/sec
GeForce GTX 550 Ti 21600 Mpixels/sec
Difference: 2680 (12%)

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 470

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 470 GeForce GTX 550 Ti
Manufacturer nVidia nVidia
Year March 2010 March 2011
Code Name GF100 GF116
Memory 1280 MB 1024 MB
Core Speed 607 MHz 900 MHz
Memory Speed 3348 MHz 4104 MHz
Power (Max TDP) 215 watts 116 watts
Bandwidth 133920 MB/sec 98496 MB/sec
Texel Rate 33992 Mtexels/sec 28800 Mtexels/sec
Pixel Rate 24280 Mpixels/sec 21600 Mpixels/sec
Unified Shaders 448 192
Texture Mapping Units 56 32
Render Output Units 40 24
Bus Type GDDR5 GDDR5
Bus Width 320-bit 192-bit
Fab Process 40 nm 40 nm
Transistors 3000 million 1170 million
Bus PCIe x16 PCIe 2.1 x16
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 4.1 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the maximum amount of information (measured in megabytes per second) that can be moved across the external memory interface within a second. The number is worked out by multiplying the bus width by its memory speed. If the card has DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.

Comments

3 Responses to “GeForce GTX 470 vs GeForce GTX 550 Ti”
Dave says:

why the hell would they design 550 to be worse than 480?

rob says:

Because the average user wont want to spend the price of a 480. 550 gives adequate performance for most people to use. 480 is STILL more expensive than the 550 as well.

Bogdan says:

So... twice the power consumption, ~10% more potent and ~130% more expensive... what's the point of buying a gtx470? :)

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