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

Intro

The GeForce 9800 GT 1GB comes with core clock speeds of 600 MHz on the GPU, and 900 MHz on the 1024 MB of GDDR3 RAM. It features 112 SPUs along with 56 Texture Address Units and 16 ROPs.

Compare all of that to the GeForce GT 450 (OEM), which has a clock frequency of 790 MHz and a GDDR5 memory speed of 1000 MHz. It also features a 192-bit bus, and uses a 40 nm design. It features 144 SPUs, 24 TAUs, and 24 Raster Operation Units.

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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

As far as performance goes, the GeForce GT 450 (OEM) should theoretically be much superior to 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 should be a lot (about 77%) more effective 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

If using a high screen resolution is important to you, then the GeForce GT 450 (OEM) is a better choice, by a large margin. (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 (measured in MB per second) that can be transferred across the external memory interface in one second. It's worked out by multiplying the interface width by the speed of its memory. If the card has DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This figure is worked out by multiplying the total texture units of the card 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 applied per second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum 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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