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GeForce 8800 GTX vs GeForce GT 340 1GB

Intro

The GeForce 8800 GTX has a GPU core speed of 575 MHz, and the 768 MB of GDDR3 RAM runs at 900 MHz through a 384-bit bus. It also is comprised of 128 Stream Processors, 64 TAUs, and 24 ROPs.

Compare that to the GeForce GT 340 1GB, which comes with a clock speed of 550 MHz and a GDDR5 memory speed of 850 MHz. It also uses a 128-bit memory bus, and makes use of a 40 nm design. It is comprised of 96 SPUs, 32 TAUs, and 8 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 340 1GB 69 Watts
GeForce 8800 GTX 155 Watts
Difference: 86 Watts (125%)

Memory Bandwidth

In theory, the GeForce 8800 GTX will be 59% quicker than the GeForce GT 340 1GB in general, because of its greater data rate. (explain)

GeForce 8800 GTX 86400 MB/sec
GeForce GT 340 1GB 54400 MB/sec
Difference: 32000 (59%)

Texel Rate

The GeForce 8800 GTX is quite a bit (approximately 109%) better at AF than the GeForce GT 340 1GB. (explain)

GeForce 8800 GTX 36800 Mtexels/sec
GeForce GT 340 1GB 17600 Mtexels/sec
Difference: 19200 (109%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce 8800 GTX is superior to the GeForce GT 340 1GB, and very much so. (explain)

GeForce 8800 GTX 13800 Mpixels/sec
GeForce GT 340 1GB 4400 Mpixels/sec
Difference: 9400 (214%)

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 GTX

Amazon.com

Check prices at:

GeForce GT 340 1GB

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 8800 GTX GeForce GT 340 1GB
Manufacturer nVidia nVidia
Year Nov 2006 February 2010
Code Name G80 GT215
Memory 768 MB 1024 MB
Core Speed 575 MHz 550 MHz
Memory Speed 1800 MHz 3400 MHz
Power (Max TDP) 155 watts 69 watts
Bandwidth 86400 MB/sec 54400 MB/sec
Texel Rate 36800 Mtexels/sec 17600 Mtexels/sec
Pixel Rate 13800 Mpixels/sec 4400 Mpixels/sec
Unified Shaders 128 96
Texture Mapping Units 64 32
Render Output Units 24 8
Bus Type GDDR3 GDDR5
Bus Width 384-bit 128-bit
Fab Process 90 nm 40 nm
Transistors 681 million 727 million
Bus PCIe x16 PCIe x16
DirectX Version DirectX 10 DirectX 10.1
OpenGL Version OpenGL 3.0 OpenGL 3.3

Memory Bandwidth: Bandwidth is the max amount of data (in units of MB per second) that can be transferred past the external memory interface within a second. The number is worked out by multiplying the card's bus width by its memory clock speed. In the case of DDR memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher this number, 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 maximum number of pixels that the graphics chip can possibly record to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the the core clock speed. 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 fill rate is also dependant on lots of 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 8800 GTX

Amazon.com

Check prices at:

GeForce GT 340 1GB

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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