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GeForce 8800 GTS (G80) 320MB vs GeForce GT 240 GDDR5

Intro

The GeForce 8800 GTS (G80) 320MB makes use of a 90 nm design. nVidia has clocked the core speed at 513 MHz. The GDDR3 RAM runs at a frequency of 792 MHz on this particular card. It features 96 SPUs as well as 48 TAUs and 20 Rasterization Operator Units.

Compare all of that to the GeForce GT 240 GDDR5, which features core clock speeds of 550 MHz on the GPU, and 850 MHz on the 512 MB of GDDR5 RAM. It features 96 SPUs as well as 32 TAUs and 8 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 240 GDDR5 70 Watts
GeForce 8800 GTS (G80) 320MB 143 Watts
Difference: 73 Watts (104%)

Memory Bandwidth

In theory, the GeForce 8800 GTS (G80) 320MB should be a little bit faster than the GeForce GT 240 GDDR5 in general. (explain)

GeForce 8800 GTS (G80) 320MB 63360 MB/sec
GeForce GT 240 GDDR5 54400 MB/sec
Difference: 8960 (16%)

Texel Rate

The GeForce 8800 GTS (G80) 320MB should be quite a bit (approximately 40%) better at anisotropic filtering than the GeForce GT 240 GDDR5. (explain)

GeForce 8800 GTS (G80) 320MB 24624 Mtexels/sec
GeForce GT 240 GDDR5 17600 Mtexels/sec
Difference: 7024 (40%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce 8800 GTS (G80) 320MB is superior to the GeForce GT 240 GDDR5, by a large margin. (explain)

GeForce 8800 GTS (G80) 320MB 10260 Mpixels/sec
GeForce GT 240 GDDR5 4400 Mpixels/sec
Difference: 5860 (133%)

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 8800 GTS (G80) 320MB

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GeForce GT 240 GDDR5

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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 8800 GTS (G80) 320MB GeForce GT 240 GDDR5
Manufacturer nVidia nVidia
Year Feb 2007 Novermber 2009
Code Name G80 GT215
Memory 320 MB 512 MB
Core Speed 513 MHz 550 MHz
Memory Speed 1584 MHz 3400 MHz
Power (Max TDP) 143 watts 70 watts
Bandwidth 63360 MB/sec 54400 MB/sec
Texel Rate 24624 Mtexels/sec 17600 Mtexels/sec
Pixel Rate 10260 Mpixels/sec 4400 Mpixels/sec
Unified Shaders 96 96
Texture Mapping Units 48 32
Render Output Units 20 8
Bus Type GDDR3 GDDR5
Bus Width 320-bit 128-bit
Fab Process 90 nm 40 nm
Transistors 681 million 289 million
Bus PCIe x16 PCIe x16
DirectX Version DirectX 10 DirectX 10.1
OpenGL Version OpenGL 3.0 OpenGL 3.2

Memory Bandwidth: Bandwidth is the max amount of information (in units of MB per second) that can be transported over the external memory interface in a second. It is calculated by multiplying the interface width by its memory speed. If it uses DDR RAM, it must be multiplied by 2 again. If it uses 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 higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

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GeForce 8800 GTS (G80) 320MB

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.

Comments

One Response to “GeForce 8800 GTS (G80) 320MB vs GeForce GT 240 GDDR5”
Which Is Better? - Page 2 - Overclock.net - Overclocking.net says:

[...] because you rarely find benchmarks 2 series apart. so treat the 9600gt as the 8800gts 320mb. http://www.hwcompare.com/958/geforce...-gt-240-gddr5/ As I said earlier, 260 is just a bit faster than 8800, but also gives way better TDP and DirectX [...]

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