Submit Benchmarks!

Submit SSD Benchmark
Submit GPU Benchmark

Compare any two graphics cards:
VS

GeForce 8800 GTS (G80) 320MB vs GeForce 8800 GTS (G80) 640MB

Intro

The GeForce 8800 GTS (G80) 320MB comes with a GPU clock speed of 513 MHz, and the 320 MB of GDDR3 memory runs at 792 MHz through a 320-bit bus. It also is made up of 96 SPUs, 48 TAUs, and 20 Raster Operation Units.

Compare those specifications to the GeForce 8800 GTS (G80) 640MB, which features GPU core speed of 513 MHz, and 640 MB of GDDR3 memory running at 792 MHz through a 320-bit bus. It also features 96 SPUs, 48 TAUs, and 20 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

Both cards have the exact same bandwidth, so theoretically they should have the same performance. (explain)

Texel Rate

Both cards have the exact same texel rate, so theoretically they should perform equally good at at anisotropic filtering. (explain)

Pixel Rate

Both cards have the exact same pixel rate, so in theory they should be equally good at at FSAA, and be capable of handling the same resolutions. (explain)

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

Display Prices

Hide Prices

GeForce 8800 GTS (G80) 320MB

Amazon.com

Check prices at:

GeForce 8800 GTS (G80) 640MB

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

Display Specifications

Hide Specifications

Model GeForce 8800 GTS (G80) 320MB GeForce 8800 GTS (G80) 640MB
Manufacturer nVidia nVidia
Year Feb 2007 Nov 2006 (640)
Code Name G80 G80
Memory 320 MB 640 MB
Core Speed 513 MHz 513 MHz
Memory Speed 1584 MHz 1584 MHz
Power (Max TDP) 143 watts 143 watts
Bandwidth 63360 MB/sec 63360 MB/sec
Texel Rate 24624 Mtexels/sec 24624 Mtexels/sec
Pixel Rate 10260 Mpixels/sec 10260 Mpixels/sec
Unified Shaders 96 96
Texture Mapping Units 48 48
Render Output Units 20 20
Bus Type GDDR3 GDDR3
Bus Width 320-bit 320-bit
Fab Process 90 nm 90 nm
Transistors 681 million 681 million
Bus PCIe x16 PCIe x16
DirectX Version DirectX 10 DirectX 10
OpenGL Version OpenGL 3.0 OpenGL 3.0

Memory Bandwidth: Memory bandwidth is the maximum amount of data (measured in MB per second) that can be moved past the external memory interface in one second. The number is calculated by multiplying the card's bus width by its memory speed. If the card has DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. 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 number of texture map elements (texels) that can be applied per second. This figure is worked out by multiplying the total texture units of the card by the core speed of the chip. The better the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on many 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 8800 GTS (G80) 320MB

Amazon.com

Check prices at:

GeForce 8800 GTS (G80) 640MB

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 8800 GTS (G80) 320MB vs GeForce 8800 GTS (G80) 640MB”
fernando says:

esse site e uns dos melhores ...continuem assim vlw!!

Your email address will not be published. Required fields are marked *


*

WordPress Anti Spam by WP-SpamShield