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GeForce 9800 GT 512MB vs GeForce GT 340

Intro

The GeForce 9800 GT 512MB comes with clock speeds of 600 MHz on the GPU, and 900 MHz on the 512 MB of GDDR3 memory. It features 112 SPUs along with 56 Texture Address Units and 16 Rasterization Operator Units.

Compare that to the GeForce GT 340, which features clock speeds of 550 MHz on the GPU, and 850 MHz on the 512 MB of GDDR5 memory. It features 96 SPUs along with 32 Texture Address Units and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 340 69 Watts
GeForce 9800 GT 512MB 105 Watts
Difference: 36 Watts (52%)

Memory Bandwidth

As far as performance goes, the GeForce 9800 GT 512MB should theoretically be a little bit superior to the GeForce GT 340 overall. (explain)

GeForce 9800 GT 512MB 57600 MB/sec
GeForce GT 340 54400 MB/sec
Difference: 3200 (6%)

Texel Rate

The GeForce 9800 GT 512MB should be much (more or less 91%) more effective at anisotropic filtering than the GeForce GT 340. (explain)

GeForce 9800 GT 512MB 33600 Mtexels/sec
GeForce GT 340 17600 Mtexels/sec
Difference: 16000 (91%)

Pixel Rate

The GeForce 9800 GT 512MB will be much (about 118%) faster with regards to FSAA than the GeForce GT 340, and able to handle higher resolutions better. (explain)

GeForce 9800 GT 512MB 9600 Mpixels/sec
GeForce GT 340 4400 Mpixels/sec
Difference: 5200 (118%)

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 512MB

Amazon.com

Check prices at:

GeForce GT 340

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 512MB GeForce GT 340
Manufacturer nVidia nVidia
Year July 2008 February 2010
Code Name G92a/b GT215
Memory 512 MB 512 MB
Core Speed 600 MHz 550 MHz
Memory Speed 1800 MHz 3400 MHz
Power (Max TDP) 105 watts 69 watts
Bandwidth 57600 MB/sec 54400 MB/sec
Texel Rate 33600 Mtexels/sec 17600 Mtexels/sec
Pixel Rate 9600 Mpixels/sec 4400 Mpixels/sec
Unified Shaders 112 96
Texture Mapping Units 56 32
Render Output Units 16 8
Bus Type GDDR3 GDDR5
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: Bandwidth is the maximum amount of data (measured in MB per second) that can be moved over the external memory interface in a second. The number is calculated by multiplying the card's interface width by the speed of its memory. If the card has DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's 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 amount of texture map elements (texels) that are processed per second. This figure is calculated by multiplying the total texture units by the core speed of the chip. The better the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could 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 Render Output Units by the the core 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 also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce 9800 GT 512MB

Amazon.com

Check prices at:

GeForce GT 340

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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