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GeForce GT 450 (OEM) vs GeForce GTX 460 2GB

Intro

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

Compare all of that to the GeForce GTX 460 2GB, which features a clock frequency of 675 MHz and a GDDR5 memory frequency of 900 MHz. It also uses a 256-bit memory bus, and uses a 40 nm design. It features 336 SPUs, 56 Texture Address Units, and 32 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 450 (OEM) 106 Watts
GeForce GTX 460 2GB 160 Watts
Difference: 54 Watts (51%)

Memory Bandwidth

Performance-wise, the GeForce GTX 460 2GB should theoretically be a little bit better than the GeForce GT 450 (OEM) overall. (explain)

GeForce GTX 460 2GB 115200 MB/sec
GeForce GT 450 (OEM) 96000 MB/sec
Difference: 19200 (20%)

Texel Rate

The GeForce GTX 460 2GB is quite a bit (approximately 99%) faster with regards to texture filtering than the GeForce GT 450 (OEM). (explain)

GeForce GTX 460 2GB 37800 Mtexels/sec
GeForce GT 450 (OEM) 18960 Mtexels/sec
Difference: 18840 (99%)

Pixel Rate

The GeForce GTX 460 2GB will be a bit (about 14%) faster with regards to full screen anti-aliasing than the GeForce GT 450 (OEM), and also able to handle higher screen resolutions better. (explain)

GeForce GTX 460 2GB 21600 Mpixels/sec
GeForce GT 450 (OEM) 18960 Mpixels/sec
Difference: 2640 (14%)

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 460 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 GT 450 (OEM) GeForce GTX 460 2GB
Manufacturer nVidia nVidia
Year October 2010 July 2010
Code Name GF106 GF104
Memory 1536 MB 2048 MB
Core Speed 790 MHz 675 MHz
Memory Speed 4000 MHz 3600 MHz
Power (Max TDP) 106 watts 160 watts
Bandwidth 96000 MB/sec 115200 MB/sec
Texel Rate 18960 Mtexels/sec 37800 Mtexels/sec
Pixel Rate 18960 Mpixels/sec 21600 Mpixels/sec
Unified Shaders 144 336
Texture Mapping Units 24 56
Render Output Units 24 32
Bus Type GDDR5 GDDR5
Bus Width 192-bit 256-bit
Fab Process 40 nm 40 nm
Transistors 1170 million 1950 million
Bus PCIe x16 PCIe x16
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 4.1 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the largest amount of data (in units of megabytes per second) that can be transported across the external memory interface in a second. The number is worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better 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 applied per second. This figure is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory 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 460 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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