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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 set the core frequency at 513 MHz. The GDDR3 memory is set to run at a frequency of 792 MHz on this specific model. It features 96 SPUs along with 48 TAUs and 20 Rasterization Operator Units.

Compare all of that to the GeForce GT 340 1GB, which comes with clock speeds of 550 MHz on the GPU, and 850 MHz on the 1024 MB of GDDR5 memory. It features 96 SPUs as well as 32 Texture Address Units and 8 Rasterization Operator Units.

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

As far as performance goes, the GeForce 8800 GTS (G80) 320MB should theoretically be a bit superior to 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 much (more or less 40%) more effective at texture filtering 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 a lot (more or less 133%) faster with regards to AA than the GeForce GT 340 1GB, and should be capable of handling higher screen resolutions without slowing down too much. (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 data (measured in MB per second) that can be transported over the external memory interface in a second. The number is calculated by multiplying the interface width by the speed of its memory. In the case of DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better 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 texture map elements (texels) that are applied in one second. This number is worked out by multiplying the total amount of texture units by the core speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential 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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