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GeForce GT 450 (OEM) vs GeForce GTX 970M

Intro

The GeForce GT 450 (OEM) has a GPU core clock speed of 790 MHz, and the 1536 MB of GDDR5 memory runs at 1000 MHz through a 192-bit bus. It also is made up of 144 Stream Processors, 24 TAUs, and 24 ROPs.

Compare all that to the GeForce GTX 970M, which features a clock speed of 924 MHz and a GDDR5 memory frequency of 1000 MHz. It also features a 192-bit memory bus, and makes use of a 28 nm design. It features 1280 SPUs, 80 Texture Address Units, and 48 Raster Operation Units.

Display Graphs

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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 exactly the same bandwidth, so in theory they should have the same performance. (explain)

Texel Rate

The GeForce GTX 970M will be a lot (about 290%) faster with regards to AF 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

If running with high levels of AA is important to you, then the GeForce GTX 970M is a better choice, and very much so. (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

Display 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: Bandwidth is the maximum amount of information (in units of MB per second) that can be transferred past the external memory interface in one second. It is calculated by multiplying the interface width by its memory speed. If the card has DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This is worked out by multiplying the total number of texture units by the core clock speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability 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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