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GeForce 9800 GT 1GB vs GeForce GT 320

Intro

The GeForce 9800 GT 1GB features a GPU core speed of 600 MHz, and the 1024 MB of GDDR3 memory runs at 900 MHz through a 256-bit bus. It also is made up of 112 SPUs, 56 TAUs, and 16 ROPs.

Compare all of that to the GeForce GT 320, which comes with GPU core speed of 540 MHz, and 1024 MB of GDDR3 memory running at 790 MHz through a 128-bit bus. It also features 72 SPUs, 24 TAUs, and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 320 43 Watts
GeForce 9800 GT 1GB 105 Watts
Difference: 62 Watts (144%)

Memory Bandwidth

Theoretically, the GeForce 9800 GT 1GB should perform quite a bit faster than the GeForce GT 320 in general. (explain)

GeForce 9800 GT 1GB 57600 MB/sec
GeForce GT 320 25280 MB/sec
Difference: 32320 (128%)

Texel Rate

The GeForce 9800 GT 1GB is much (approximately 159%) faster with regards to texture filtering than the GeForce GT 320. (explain)

GeForce 9800 GT 1GB 33600 Mtexels/sec
GeForce GT 320 12960 Mtexels/sec
Difference: 20640 (159%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce 9800 GT 1GB is the winner, by a large margin. (explain)

GeForce 9800 GT 1GB 9600 Mpixels/sec
GeForce GT 320 4320 Mpixels/sec
Difference: 5280 (122%)

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 320

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 320
Manufacturer nVidia nVidia
Year July 2008 February 2010
Code Name G92a/b GT215
Memory 1024 MB 1024 MB
Core Speed 600 MHz 540 MHz
Memory Speed 1800 MHz 1580 MHz
Power (Max TDP) 105 watts 43 watts
Bandwidth 57600 MB/sec 25280 MB/sec
Texel Rate 33600 Mtexels/sec 12960 Mtexels/sec
Pixel Rate 9600 Mpixels/sec 4320 Mpixels/sec
Unified Shaders 112 72
Texture Mapping Units 56 24
Render Output Units 16 8
Bus Type GDDR3 GDDR3
Bus Width 256-bit 128-bit
Fab Process 65/55 nm 40 nm
Transistors 754 million 727 million
Bus PCIe x16 2.0 PCIe x16
DirectX Version DirectX 10 DirectX 10.1
OpenGL Version OpenGL 3.0 OpenGL 3.3

Memory Bandwidth: Memory bandwidth is the maximum amount of data (counted in megabytes per second) that can be transferred over the external memory interface in one second. It's calculated by multiplying the card's interface width by its memory speed. If the card has DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster 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 texture map elements (texels) that can be processed per second. This is calculated by multiplying the total texture units of the card by the core speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the clock speed of the card. 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 is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

Hide Prices

GeForce 9800 GT 1GB

Amazon.com

Check prices at:

GeForce GT 320

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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