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GeForce GTX 470 vs GeForce GTX 550 Ti


Intro

The GeForce GTX 470 features a GPU core speed of 607 MHz, and the 1280 MB of GDDR5 memory runs at 837 MHz through a 320-bit bus. It also features 448 SPUs, 56 TAUs, and 40 ROPs.

Compare that to the GeForce GTX 550 Ti, which has a clock frequency of 900 MHz and a GDDR5 memory speed of 1026 MHz. It also uses a 192-bit bus, and makes use of a 40 nm design. It is comprised of 192 SPUs, 32 TAUs, and 24 ROPs.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

GeForce GTX 470 2940 points
GeForce GTX 550 Ti 1910 points
Difference: 1030 (54%)

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 is 36% quicker than the GeForce GTX 550 Ti in general, due to its greater data rate. (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 (more or less 18%) more effective at texture filtering 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

The GeForce GTX 470 is a little bit (more or less 12%) better at FSAA than the GeForce GTX 550 Ti, and will be capable of handling higher resolutions while still performing well. (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

GeForce GTX 470

GeForce GTX 550 Ti

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 max amount of data (counted in megabytes per second) that can be moved past the external memory interface in one second. It is worked out by multiplying the interface width by its memory clock speed. In the case of DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed 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 higher this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines 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 output rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.

GeForce GTX 470

GeForce GTX 550 Ti

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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