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GeForce GT 450 (OEM) vs GeForce GTX 750

Intro

The GeForce GT 450 (OEM) features core speeds of 790 MHz on the GPU, and 1000 MHz on the 1536 MB of GDDR5 memory. It features 144 SPUs as well as 24 TAUs and 24 Rasterization Operator Units.

Compare those specifications to the GeForce GTX 750, which has core speeds of 1020 MHz on the GPU, and 1250 MHz on the 1024 MB of GDDR5 RAM. It features 512 SPUs along with 32 TAUs and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 750 55 Watts
GeForce GT 450 (OEM) 106 Watts
Difference: 51 Watts (93%)

Memory Bandwidth

In theory, the GeForce GT 450 (OEM) should be just a bit faster than the GeForce GTX 750 in general. (explain)

GeForce GT 450 (OEM) 96000 MB/sec
GeForce GTX 750 80000 MB/sec
Difference: 16000 (20%)

Texel Rate

The GeForce GTX 750 should be much (about 72%) better at AF than the GeForce GT 450 (OEM). (explain)

GeForce GTX 750 32640 Mtexels/sec
GeForce GT 450 (OEM) 18960 Mtexels/sec
Difference: 13680 (72%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GT 450 (OEM) is superior to the GeForce GTX 750, though not by far. (explain)

GeForce GT 450 (OEM) 18960 Mpixels/sec
GeForce GTX 750 16320 Mpixels/sec
Difference: 2640 (16%)

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

Check prices at:

GeForce GTX 750

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

Display Specifications

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Model GeForce GT 450 (OEM) GeForce GTX 750
Manufacturer nVidia nVidia
Year October 2010 February 2014
Code Name GF106 GM107
Memory 1536 MB 1024 MB
Core Speed 790 MHz 1020 MHz
Memory Speed 4000 MHz 5000 MHz
Power (Max TDP) 106 watts 55 watts
Bandwidth 96000 MB/sec 80000 MB/sec
Texel Rate 18960 Mtexels/sec 32640 Mtexels/sec
Pixel Rate 18960 Mpixels/sec 16320 Mpixels/sec
Unified Shaders 144 512
Texture Mapping Units 24 32
Render Output Units 24 16
Bus Type GDDR5 GDDR5
Bus Width 192-bit 128-bit
Fab Process 40 nm 28 nm
Transistors 1170 million 1870 million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 11.0
OpenGL Version OpenGL 4.1 OpenGL 4.4

Memory Bandwidth: Bandwidth is the largest amount of data (counted in megabytes per second) that can be transported across the external memory interface in a second. It is calculated by multiplying the interface width by its memory clock speed. If the card has DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

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GeForce GT 450 (OEM)

Amazon.com

Check prices at:

GeForce GTX 750

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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