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GeForce 9800 GT 512MB vs GeForce GT 240 GDDR5

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 RAM. It features 112 SPUs as well as 56 Texture Address Units and 16 Rasterization Operator Units.

Compare all of that to the GeForce GT 240 GDDR5, which comes with GPU core speed of 550 MHz, and 512 MB of GDDR5 memory running at 850 MHz through a 128-bit bus. It also is made up of 96 Stream Processors, 32 TAUs, and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 240 GDDR5 70 Watts
GeForce 9800 GT 512MB 105 Watts
Difference: 35 Watts (50%)

Memory Bandwidth

The GeForce 9800 GT 512MB, in theory, should be just a bit faster than the GeForce GT 240 GDDR5 overall. (explain)

GeForce 9800 GT 512MB 57600 MB/sec
GeForce GT 240 GDDR5 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 240 GDDR5. (explain)

GeForce 9800 GT 512MB 33600 Mtexels/sec
GeForce GT 240 GDDR5 17600 Mtexels/sec
Difference: 16000 (91%)

Pixel Rate

The GeForce 9800 GT 512MB should be quite a bit (approximately 118%) more effective at FSAA than the GeForce GT 240 GDDR5, and able to handle higher screen resolutions without losing too much performance. (explain)

GeForce 9800 GT 512MB 9600 Mpixels/sec
GeForce GT 240 GDDR5 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 240 GDDR5

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 240 GDDR5
Manufacturer nVidia nVidia
Year July 2008 Novermber 2009
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 70 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 289 million
Bus PCIe x16 2.0 PCIe x16
DirectX Version DirectX 10 DirectX 10.1
OpenGL Version OpenGL 3.0 OpenGL 3.2

Memory Bandwidth: Memory bandwidth is the maximum amount of data (in units of MB per second) that can be transported past the external memory interface in a second. The number is worked out by multiplying the interface width by the speed of its memory. In the case of DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total number of 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 per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs 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 many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce 9800 GT 512MB

Amazon.com

Check prices at:

GeForce GT 240 GDDR5

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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