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GeForce 8800 GT 256MB vs GeForce GT 340

Intro

The GeForce 8800 GT 256MB uses a 65 nm design. nVidia has clocked the core speed at 600 MHz. The GDDR3 RAM runs at a speed of 700 MHz on this card. It features 112 SPUs along with 56 TAUs and 16 Rasterization Operator Units.

Compare those specifications to the GeForce GT 340, which comes with a GPU core clock speed of 550 MHz, and 512 MB of GDDR5 RAM set to run at 850 MHz through a 128-bit bus. It also features 96 SPUs, 32 TAUs, and 8 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 340 69 Watts
GeForce 8800 GT 256MB 105 Watts
Difference: 36 Watts (52%)

Memory Bandwidth

As far as performance goes, the GeForce GT 340 should in theory be quite a bit better than the GeForce 8800 GT 256MB overall. (explain)

GeForce GT 340 54400 MB/sec
GeForce 8800 GT 256MB 44800 MB/sec
Difference: 9600 (21%)

Texel Rate

The GeForce 8800 GT 256MB will be quite a bit (more or less 91%) better at texture filtering than the GeForce GT 340. (explain)

GeForce 8800 GT 256MB 33600 Mtexels/sec
GeForce GT 340 17600 Mtexels/sec
Difference: 16000 (91%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce 8800 GT 256MB is a better choice, and very much so. (explain)

GeForce 8800 GT 256MB 9600 Mpixels/sec
GeForce GT 340 4400 Mpixels/sec
Difference: 5200 (118%)

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 GT 256MB

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 8800 GT 256MB GeForce GT 340
Manufacturer nVidia nVidia
Year Dec 2007 February 2010
Code Name G92 GT215
Memory 256 MB 512 MB
Core Speed 600 MHz 550 MHz
Memory Speed 1400 MHz 3400 MHz
Power (Max TDP) 105 watts 69 watts
Bandwidth 44800 MB/sec 54400 MB/sec
Texel Rate 33600 Mtexels/sec 17600 Mtexels/sec
Pixel Rate 9600 Mpixels/sec 4400 Mpixels/sec
Unified Shaders 112 96
Texture Mapping Units 56 32
Render Output Units 16 8
Bus Type GDDR3 GDDR5
Bus Width 256-bit 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: Bandwidth is the max amount of information (counted in megabytes per second) that can be transferred across the external memory interface within a second. The number is calculated by multiplying the interface width by the speed of its memory. If it uses DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

Hide Prices

GeForce 8800 GT 256MB

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.

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