Albatron Medusa GeForce4 Ti 4800SE

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Memory bandwidth

When we fired up SiSoft's Sandra we where able to figure out that the revision of this GeForce4 core is numbered A3. A3 is the latest build of the GPU and is also being used on any GeForce4 Ti 4600. Combined with the Ti 4600 PCB I think we'll be able to tweak this puppy to about 300-310 MHz but more on that later in our overclocking bit. One thing is a sure fact, 3.3ns memory can easily take that 550 MHz clock frequency. Let's do our usual round of calculations shall we and bare in mind that a normal Ti 4400 would have a bandwidth of roughly 8800 MB/sec. There's a simple way to calculate everything you need to know, you just need to look at the memory chips and note the last numbers on the chip as it will state how fast they are or simple write down the series number and check it on the manufacturer website.

Let's calculate the nominal speed for this memory:
1000:3.3ns x 2 (DDR) = 606 MHz

Hey .. it's clocked at 555 MHz, that means there is plenty of room for overclocking. Now that we have calculated nominal memory bandwidth and can see that the ram modules deliver the frequency that NVIDIA states we can raise the bar a step and calculate memory bandwidth:

(2x128bit) x (606MHz:2) : 8bit = 9696 MB/sec That's about a 1 Gb/sec above standard specification which we think you can enable as default.

 imageview.php?image=309DDR memory rated 3,3ns

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