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GeForce GTX 550 Ti vs GeForce GTX 650 Ti 2GB

Intro

The GeForce GTX 550 Ti uses 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 specific card. It features 192 SPUs as well as 32 TAUs and 24 Rasterization Operator Units.

Compare that to the GeForce GTX 650 Ti 2GB, which comes with clock speeds of 928 MHz on the GPU, and 1350 MHz on the 2048 MB of GDDR5 RAM. It features 768 SPUs as well as 64 TAUs and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650 Ti 2GB 110 Watts
GeForce GTX 550 Ti 116 Watts
Difference: 6 Watts (5%)

Memory Bandwidth

The GeForce GTX 550 Ti should in theory perform just a bit faster than the GeForce GTX 650 Ti 2GB in general. (explain)

GeForce GTX 550 Ti 98496 MB/sec
GeForce GTX 650 Ti 2GB 86400 MB/sec
Difference: 12096 (14%)

Texel Rate

The GeForce GTX 650 Ti 2GB is much (about 106%) more effective at AF than the GeForce GTX 550 Ti. (explain)

GeForce GTX 650 Ti 2GB 59392 Mtexels/sec
GeForce GTX 550 Ti 28800 Mtexels/sec
Difference: 30592 (106%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 550 Ti is superior to the GeForce GTX 650 Ti 2GB, by a large margin. (explain)

GeForce GTX 550 Ti 21600 Mpixels/sec
GeForce GTX 650 Ti 2GB 14848 Mpixels/sec
Difference: 6752 (45%)

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

Check prices at:

GeForce GTX 650 Ti 2GB

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.

Specifications

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Model GeForce GTX 550 Ti GeForce GTX 650 Ti 2GB
Manufacturer nVidia nVidia
Year March 2011 October 2012
Code Name GF116 GK106
Memory 1024 MB 2048 MB
Core Speed 900 MHz 928 MHz
Memory Speed 4104 MHz 5400 MHz
Power (Max TDP) 116 watts 110 watts
Bandwidth 98496 MB/sec 86400 MB/sec
Texel Rate 28800 Mtexels/sec 59392 Mtexels/sec
Pixel Rate 21600 Mpixels/sec 14848 Mpixels/sec
Unified Shaders 192 768
Texture Mapping Units 32 64
Render Output Units 24 16
Bus Type GDDR5 GDDR5
Bus Width 192-bit 128-bit
Fab Process 40 nm 28 nm
Transistors 1170 million 2540 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 largest amount of data (in units of MB per second) that can be transported past the external memory interface in a second. The number is worked out by multiplying the interface width by its memory speed. In the case of DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. 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 can be processed in one second. This is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The better this number, the better the 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 can possibly write to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 550 Ti

Amazon.com

Check prices at:

GeForce GTX 650 Ti 2GB

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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