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GeForce GTX 550 Ti vs Geforce GTX 780

Intro

The GeForce GTX 550 Ti comes with a core clock frequency of 900 MHz and a GDDR5 memory frequency of 1026 MHz. It also makes use of a 192-bit bus, and makes use of a 40 nm design. It features 192 SPUs, 32 TAUs, and 24 ROPs.

Compare those specs to the Geforce GTX 780, which makes use of a 28 nm design. nVidia has set the core speed at 863 MHz. The GDDR5 memory is set to run at a frequency of 1502 MHz on this card. It features 2304 SPUs as well as 192 TAUs and 48 ROPs.

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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 780 10082 points
GeForce GTX 550 Ti 1897 points
Difference: 8185 (431%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 550 Ti 116 Watts
Geforce GTX 780 250 Watts
Difference: 134 Watts (116%)

Memory Bandwidth

In theory, the Geforce GTX 780 will be 193% faster than the GeForce GTX 550 Ti overall, due to its higher data rate. (explain)

Geforce GTX 780 288384 MB/sec
GeForce GTX 550 Ti 98496 MB/sec
Difference: 189888 (193%)

Texel Rate

The Geforce GTX 780 will be a lot (about 475%) better at texture filtering than the GeForce GTX 550 Ti. (explain)

Geforce GTX 780 165696 Mtexels/sec
GeForce GTX 550 Ti 28800 Mtexels/sec
Difference: 136896 (475%)

Pixel Rate

The Geforce GTX 780 should be quite a bit (more or less 92%) more effective at FSAA than the GeForce GTX 550 Ti, and also capable of handling higher screen resolutions without losing too much performance. (explain)

Geforce GTX 780 41424 Mpixels/sec
GeForce GTX 550 Ti 21600 Mpixels/sec
Difference: 19824 (92%)

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 550 Ti

Amazon.com

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Geforce GTX 780

Amazon.com

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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 550 Ti Geforce GTX 780
Manufacturer nVidia nVidia
Year March 2011 May 2013
Code Name GF116 GK110
Memory 1024 MB 3072 MB
Core Speed 900 MHz 863 MHz
Memory Speed 4104 MHz 6008 MHz
Power (Max TDP) 116 watts 250 watts
Bandwidth 98496 MB/sec 288384 MB/sec
Texel Rate 28800 Mtexels/sec 165696 Mtexels/sec
Pixel Rate 21600 Mpixels/sec 41424 Mpixels/sec
Unified Shaders 192 2304
Texture Mapping Units 32 192
Render Output Units 24 48
Bus Type GDDR5 GDDR5
Bus Width 192-bit 384-bit
Fab Process 40 nm 28 nm
Transistors 1170 million 7080 million
Bus PCIe 2.1 x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 11.0
OpenGL Version OpenGL 4.1 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the maximum amount of data (in units of megabytes per second) that can be moved past the external memory interface in one second. It's worked out by multiplying the interface width by its memory speed. If the card has DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This figure is worked out by multiplying the total number of 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 per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card 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 amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

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GeForce GTX 550 Ti

Amazon.com

Check prices at:

Geforce GTX 780

Amazon.com

Check prices at:

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.

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