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GeForce 9800 GX2 vs GeForce GT 340

Intro

The GeForce 9800 GX2 has core clock speeds of 600 MHz on the GPU, and 1000 MHz on the 512 MB of GDDR3 memory. It features 128 SPUs along with 64 TAUs and 16 ROPs.

Compare those specs to the GeForce GT 340, 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 comprised of 96 SPUs, 32 TAUs, and 8 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 340 69 Watts
GeForce 9800 GX2 197 Watts
Difference: 128 Watts (186%)

Memory Bandwidth

Performance-wise, the GeForce 9800 GX2 should in theory be much superior to the GeForce GT 340 overall. (explain)

GeForce 9800 GX2 128000 MB/sec
GeForce GT 340 54400 MB/sec
Difference: 73600 (135%)

Texel Rate

The GeForce 9800 GX2 should be much (about 336%) faster with regards to AF than the GeForce GT 340. (explain)

GeForce 9800 GX2 76800 Mtexels/sec
GeForce GT 340 17600 Mtexels/sec
Difference: 59200 (336%)

Pixel Rate

The GeForce 9800 GX2 should be quite a bit (about 336%) faster with regards to anti-aliasing than the GeForce GT 340, and should be able to handle higher resolutions while still performing well. (explain)

GeForce 9800 GX2 19200 Mpixels/sec
GeForce GT 340 4400 Mpixels/sec
Difference: 14800 (336%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

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GeForce 9800 GX2

Amazon.com

Check prices at:

GeForce GT 340

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 GX2 GeForce GT 340
Manufacturer nVidia nVidia
Year Mar 2008 February 2010
Code Name G92 GT215
Memory 512 MB (x2) 512 MB
Core Speed 600 MHz (x2) 550 MHz
Memory Speed 2000 MHz (x2) 3400 MHz
Power (Max TDP) 197 watts 69 watts
Bandwidth 128000 MB/sec 54400 MB/sec
Texel Rate 76800 Mtexels/sec 17600 Mtexels/sec
Pixel Rate 19200 Mpixels/sec 4400 Mpixels/sec
Unified Shaders 128 (x2) 96
Texture Mapping Units 64 (x2) 32
Render Output Units 16 (x2) 8
Bus Type GDDR3 GDDR5
Bus Width 256-bit (x2) 128-bit
Fab Process 65 nm 40 nm
Transistors 754 million 727 million
Bus PCIe x16 2.0 PCIe x16
DirectX Version DirectX 10 DirectX 10.1
OpenGL Version OpenGL 3.0 OpenGL 3.3

Memory Bandwidth: Memory bandwidth is the max amount of data (counted in megabytes per second) that can be moved past the external memory interface within a second. The number is calculated by multiplying the interface width by its memory clock speed. If it uses DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher 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 applied per second. This is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the the core clock speed. 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 lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

Hide Prices

GeForce 9800 GX2

Amazon.com

Check prices at:

GeForce GT 340

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 9800 GX2 vs GeForce GT 340”
Anonymous says:

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