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GeForce 8800 GTX vs GeForce GT 450 (OEM)

Intro

The GeForce 8800 GTX uses a 90 nm design. nVidia has set the core speed at 575 MHz. The GDDR3 memory works at a speed of 900 MHz on this specific card. It features 128 SPUs as well as 64 TAUs and 24 ROPs.

Compare all of that to the GeForce GT 450 (OEM), which has 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.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 450 (OEM) 106 Watts
GeForce 8800 GTX 155 Watts
Difference: 49 Watts (46%)

Memory Bandwidth

Theoretically speaking, the GeForce GT 450 (OEM) should be 11% quicker than the GeForce 8800 GTX overall, because of its higher data rate. (explain)

GeForce GT 450 (OEM) 96000 MB/sec
GeForce 8800 GTX 86400 MB/sec
Difference: 9600 (11%)

Texel Rate

The GeForce 8800 GTX will be a lot (about 94%) more effective at anisotropic filtering than the GeForce GT 450 (OEM). (explain)

GeForce 8800 GTX 36800 Mtexels/sec
GeForce GT 450 (OEM) 18960 Mtexels/sec
Difference: 17840 (94%)

Pixel Rate

The GeForce GT 450 (OEM) will be quite a bit (about 37%) better at AA than the GeForce 8800 GTX, and also will be capable of handling higher resolutions without slowing down too much. (explain)

GeForce GT 450 (OEM) 18960 Mpixels/sec
GeForce 8800 GTX 13800 Mpixels/sec
Difference: 5160 (37%)

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 8800 GTX

Amazon.com

Check prices at:

GeForce GT 450 (OEM)

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 8800 GTX GeForce GT 450 (OEM)
Manufacturer nVidia nVidia
Year Nov 2006 October 2010
Code Name G80 GF106
Memory 768 MB 1536 MB
Core Speed 575 MHz 790 MHz
Memory Speed 1800 MHz 4000 MHz
Power (Max TDP) 155 watts 106 watts
Bandwidth 86400 MB/sec 96000 MB/sec
Texel Rate 36800 Mtexels/sec 18960 Mtexels/sec
Pixel Rate 13800 Mpixels/sec 18960 Mpixels/sec
Unified Shaders 128 144
Texture Mapping Units 64 24
Render Output Units 24 24
Bus Type GDDR3 GDDR5
Bus Width 384-bit 192-bit
Fab Process 90 nm 40 nm
Transistors 681 million 1170 million
Bus PCIe x16 PCIe x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 4.1

Memory Bandwidth: Bandwidth is the largest amount of data (counted in MB per second) that can be moved across the external memory interface in a second. It is calculated by multiplying the card's bus width by its memory speed. If the card has DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The better 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 maximum amount of pixels the graphics card can possibly record to the 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 - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

Hide Prices

GeForce 8800 GTX

Amazon.com

Check prices at:

GeForce GT 450 (OEM)

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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