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GeForce GT 450 (OEM) vs GeForce GTX 650 Ti

Intro

The GeForce GT 450 (OEM) uses a 40 nm design. nVidia has clocked the core speed at 790 MHz. The GDDR5 memory is set to run at a frequency of 1000 MHz on this card. It features 144 SPUs along with 24 Texture Address Units and 24 ROPs.

Compare those specs to the GeForce GTX 650 Ti, which has GPU clock speed of 928 MHz, and 1024 MB of GDDR5 RAM running at 1350 MHz through a 128-bit bus. It also is made up of 768 SPUs, 64 TAUs, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 450 (OEM) 106 Watts
GeForce GTX 650 Ti 110 Watts
Difference: 4 Watts (4%)

Memory Bandwidth

In theory, the GeForce GT 450 (OEM) should perform just a bit faster than the GeForce GTX 650 Ti overall. (explain)

GeForce GT 450 (OEM) 96000 MB/sec
GeForce GTX 650 Ti 86400 MB/sec
Difference: 9600 (11%)

Texel Rate

The GeForce GTX 650 Ti should be a lot (more or less 213%) more effective at anisotropic filtering than the GeForce GT 450 (OEM). (explain)

GeForce GTX 650 Ti 59392 Mtexels/sec
GeForce GT 450 (OEM) 18960 Mtexels/sec
Difference: 40432 (213%)

Pixel Rate

The GeForce GT 450 (OEM) will be quite a bit (about 28%) more effective at full screen anti-aliasing than the GeForce GTX 650 Ti, and should be able to handle higher resolutions without losing too much performance. (explain)

GeForce GT 450 (OEM) 18960 Mpixels/sec
GeForce GTX 650 Ti 14848 Mpixels/sec
Difference: 4112 (28%)

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 GT 450 (OEM)

Amazon.com

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GeForce GTX 650 Ti

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 GT 450 (OEM) GeForce GTX 650 Ti
Manufacturer nVidia nVidia
Year October 2010 October 2012
Code Name GF106 GK106
Memory 1536 MB 1024 MB
Core Speed 790 MHz 928 MHz
Memory Speed 4000 MHz 5400 MHz
Power (Max TDP) 106 watts 110 watts
Bandwidth 96000 MB/sec 86400 MB/sec
Texel Rate 18960 Mtexels/sec 59392 Mtexels/sec
Pixel Rate 18960 Mpixels/sec 14848 Mpixels/sec
Unified Shaders 144 768
Texture Mapping Units 24 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 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 (counted in megabytes per second) that can be transported past the external memory interface in one second. It is calculated by multiplying the interface width by its memory speed. If it uses DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher 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 amount of texture map elements (texels) that can be processed in one second. This is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

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

Display Prices

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GeForce GT 450 (OEM)

Amazon.com

Check prices at:

GeForce GTX 650 Ti

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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