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GeForce 8800 GTS (G80) 320MB vs GeForce GT 340 1GB

Intro

The GeForce 8800 GTS (G80) 320MB uses a 90 nm design. nVidia has clocked the core frequency at 513 MHz. The GDDR3 memory runs at a frequency of 792 MHz on this model. It features 96 SPUs along with 48 TAUs and 20 Rasterization Operator Units.

Compare that to the GeForce GT 340 1GB, which has GPU core speed of 550 MHz, and 1024 MB of GDDR5 memory running at 850 MHz through a 128-bit bus. It also is comprised 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 340 1GB 69 Watts
GeForce 8800 GTS (G80) 320MB 143 Watts
Difference: 74 Watts (107%)

Memory Bandwidth

The GeForce 8800 GTS (G80) 320MB should theoretically be a bit faster than the GeForce GT 340 1GB in general. (explain)

GeForce 8800 GTS (G80) 320MB 63360 MB/sec
GeForce GT 340 1GB 54400 MB/sec
Difference: 8960 (16%)

Texel Rate

The GeForce 8800 GTS (G80) 320MB should be a lot (more or less 40%) better at AF than the GeForce GT 340 1GB. (explain)

GeForce 8800 GTS (G80) 320MB 24624 Mtexels/sec
GeForce GT 340 1GB 17600 Mtexels/sec
Difference: 7024 (40%)

Pixel Rate

The GeForce 8800 GTS (G80) 320MB is quite a bit (more or less 133%) faster with regards to anti-aliasing than the GeForce GT 340 1GB, and able to handle higher screen resolutions while still performing well. (explain)

GeForce 8800 GTS (G80) 320MB 10260 Mpixels/sec
GeForce GT 340 1GB 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

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 GTS (G80) 320MB GeForce GT 340 1GB
Manufacturer nVidia nVidia
Year Feb 2007 February 2010
Code Name G80 GT215
Memory 320 MB 1024 MB
Core Speed 513 MHz 550 MHz
Memory Speed 1584 MHz 3400 MHz
Power (Max TDP) 143 watts 69 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 727 million
Bus PCIe x16 PCIe x16
DirectX Version DirectX 10 DirectX 10.1
OpenGL Version OpenGL 3.0 OpenGL 3.3

Memory Bandwidth: Memory bandwidth is the largest amount of information (counted in megabytes per second) that can be moved past the external memory interface within a second. The number is calculated by multiplying the card's bus width by its memory speed. In the case of DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This is calculated by multiplying the total amount of texture units 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 one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

Hide Prices

GeForce 8800 GTS (G80) 320MB

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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