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GeForce 9800 GT 1GB vs GeForce GT 450 (OEM)

Intro

The GeForce 9800 GT 1GB uses a 65/55 nm design. nVidia has set the core speed at 600 MHz. The GDDR3 RAM runs at a speed of 900 MHz on this specific model. It features 112 SPUs along with 56 TAUs and 16 Rasterization Operator Units.

Compare all of that to the GeForce GT 450 (OEM), which makes use of a 40 nm design. nVidia has clocked the core frequency at 790 MHz. The GDDR5 RAM runs at a speed of 1000 MHz on this specific model. It features 144 SPUs along with 24 TAUs and 24 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9800 GT 1GB 105 Watts
GeForce GT 450 (OEM) 106 Watts
Difference: 1 Watts (1%)

Memory Bandwidth

The GeForce GT 450 (OEM) should in theory be a lot faster than the GeForce 9800 GT 1GB in general. (explain)

GeForce GT 450 (OEM) 96000 MB/sec
GeForce 9800 GT 1GB 57600 MB/sec
Difference: 38400 (67%)

Texel Rate

The GeForce 9800 GT 1GB will be quite a bit (about 77%) better at texture filtering than the GeForce GT 450 (OEM). (explain)

GeForce 9800 GT 1GB 33600 Mtexels/sec
GeForce GT 450 (OEM) 18960 Mtexels/sec
Difference: 14640 (77%)

Pixel Rate

The GeForce GT 450 (OEM) should be much (about 98%) more effective at FSAA than the GeForce 9800 GT 1GB, and also will be capable of handling higher resolutions more effectively. (explain)

GeForce GT 450 (OEM) 18960 Mpixels/sec
GeForce 9800 GT 1GB 9600 Mpixels/sec
Difference: 9360 (98%)

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 9800 GT 1GB

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 9800 GT 1GB GeForce GT 450 (OEM)
Manufacturer nVidia nVidia
Year July 2008 October 2010
Code Name G92a/b GF106
Memory 1024 MB 1536 MB
Core Speed 600 MHz 790 MHz
Memory Speed 1800 MHz 4000 MHz
Power (Max TDP) 105 watts 106 watts
Bandwidth 57600 MB/sec 96000 MB/sec
Texel Rate 33600 Mtexels/sec 18960 Mtexels/sec
Pixel Rate 9600 Mpixels/sec 18960 Mpixels/sec
Unified Shaders 112 144
Texture Mapping Units 56 24
Render Output Units 16 24
Bus Type GDDR3 GDDR5
Bus Width 256-bit 192-bit
Fab Process 65/55 nm 40 nm
Transistors 754 million 1170 million
Bus PCIe x16 2.0 PCIe x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 4.1

Memory Bandwidth: Bandwidth is the maximum amount of information (in units of MB per second) that can be transported across the external memory interface within a second. It's worked out by multiplying the bus width by its memory clock speed. If the card has DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied in one second. This 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 per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

Hide Prices

GeForce 9800 GT 1GB

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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