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GeForce GT 450 (OEM) vs GeForce GTX 970M

Intro

The GeForce GT 450 (OEM) features a core clock frequency of 790 MHz and a GDDR5 memory frequency of 1000 MHz. It also makes use of a 192-bit memory bus, and makes use of a 40 nm design. It features 144 SPUs, 24 TAUs, and 24 Raster Operation Units.

Compare all of that to the GeForce GTX 970M, which uses a 28 nm design. nVidia has set the core speed at 924 MHz. The GDDR5 RAM runs at a speed of 1000 MHz on this specific card. It features 1280 SPUs along with 80 Texture Address Units and 48 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 970M 75 Watts
GeForce GT 450 (OEM) 106 Watts
Difference: 31 Watts (41%)

Memory Bandwidth

Both cards have the exact same bandwidth, so in theory they should have the same performance. (explain)

Texel Rate

The GeForce GTX 970M will be much (approximately 290%) more effective at anisotropic filtering than the GeForce GT 450 (OEM). (explain)

GeForce GTX 970M 73920 Mtexels/sec
GeForce GT 450 (OEM) 18960 Mtexels/sec
Difference: 54960 (290%)

Pixel Rate

The GeForce GTX 970M is quite a bit (approximately 134%) faster with regards to AA than the GeForce GT 450 (OEM), and capable of handling higher screen resolutions better. (explain)

GeForce GTX 970M 44352 Mpixels/sec
GeForce GT 450 (OEM) 18960 Mpixels/sec
Difference: 25392 (134%)

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 970M

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 GT 450 (OEM) GeForce GTX 970M
Manufacturer nVidia nVidia
Year October 2010 October 7 2014
Code Name GF106 GM204
Memory 1536 MB 3072 MB
Core Speed 790 MHz 924 MHz
Memory Speed 4000 MHz 4000 MHz
Power (Max TDP) 106 watts 75 watts
Bandwidth 96000 MB/sec 96000 MB/sec
Texel Rate 18960 Mtexels/sec 73920 Mtexels/sec
Pixel Rate 18960 Mpixels/sec 44352 Mpixels/sec
Unified Shaders 144 1280
Texture Mapping Units 24 80
Render Output Units 24 48
Bus Type GDDR5 GDDR5
Bus Width 192-bit 192-bit
Fab Process 40 nm 28 nm
Transistors 1170 million (Unknown) million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 12
OpenGL Version OpenGL 4.1 OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the maximum amount of data (counted in MB per second) that can be transferred over the external memory interface in a second. It is calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better 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 per second. This number is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The higher 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 per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on lots of other factors, especially 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 970M

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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