G.Skill DDR Memory Roundup: 7 Extreme Kits Tested!

Memory by MarkElmer @ 2005-08-04

Welcome to our little endeavor to try and sort through the massive DDR1 line-up of the new upcoming enthusiast memory company, G.Skill. We will take a closer look at 7 Dual Channel kits from the Extreme Series and test their overclockability.

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Results @ CL2.5

Results @ CL2.5

Let’s take a look at the typical TCCD-timings: CL2.5-3-3-6

Madshrimps (c)



  • Memory Module – VDIMM – Memtest Screenshot – Windows Screenshot

  • PC3200GH 1GB #1 – 3.56V - Memtest - Windows
  • PC3200GH 1GB #2 – 3.56V - Memtest - Windows
  • PC3200ZX 1GB #1 – 2.69V - Memtest - Windows
  • PC3200ZX 1GB #2 – 2.66V - Memtest - Windows
  • PC4400FC 1GB – 3.06V - Memtest - Windows
  • PC4400LE 1GB #1 – 2.86V - Memtest - Windows
  • PC4400LE 1GB #2 – 3.06V - Memtest - Windows
  • PC4800FF 1GB – 2.80V - Memtest - Windows
  • PC4800FR 1GB #1 – 2.76V - Memtest - Windows
  • PC4800FR 1GB #2 – 2.57V - Memtest - Windows
  • PC4800LA 512Mb – 2.90V - Memtest - Windows

    As you can see, the TCCD modules are really in the lead here, some of them are even capable of reaching DDR600 at these timings. Again, the 3200GH with Winbond chips don’t react, at all, to the higher latencies.

    The PC3200ZX-modules are stopping at 234-6 MHz, which is reasonable for a 99 dollar kit.

    The highest rated modules (PC4800FF) have the best performance. It is, though, only 1 MHz above the much more affordable PC4400FC. These sticks are doing great. Keep in mind that they are only rated DDR550 CL2.5-4-4-8 1T.

    Let’s see what the stock latency will bring us.


    Madshrimps (c)



  • Memory Module – VDIMM – Memtest Screenshot – Windows Screenshot

  • PC3200GH 1GB #1 – 3.56V - Memtest - Windows
  • PC3200GH 1GB #2 – 3.56V - Memtest - Windows
  • PC3200ZX 1GB #1 – 2.69V - Memtest - Windows
  • PC3200ZX 1GB #2 – 2.66V - Memtest - Windows
  • PC4400FC 1GB – 3.06V - Memtest - Windows
  • PC4400LE 1GB #1 – 2.90V - Memtest - Windows
  • PC4400LE 1GB #2 – 2.96V - Memtest - Windows
  • PC4800FF 1GB – 2.90V - Memtest - Windows
  • PC4800FR 1GB #1 – 2.66V - Memtest - Windows
  • PC4800FR 1GB #2 – 2.93V - Memtest - Windows
  • PC4800LA 512Mb – 2.98V - Memtest - Windows


    All the sets which are rated PC4400 and above are doing DDR600 at least, the best 1GB kit is one of the PC4400LE kits at DDR618 (2.96V). When you take a look at the vdimm list, you see that almost every TCCD-based module wants to have at least 2.90V. In some cases a very low voltage will give the best results. There is no logic in this, you just have to test it. At each timing you will find a different vdimm hotspot.

    The best performer at this speed is the 512MB set of PC4800LA, but we cannot compare it to the other sets.

    The PC3200ZX dimms have found their maximum MHz at this timing: above DDR500. And, as expected, no improvement for the PC3200GH modules.



    Madshrimps (c)



  • Memory Module – VDIMM – Memtest Screenshot – Windows Screenshot

  • PC3200GH 1GB #1 – 3.44V - Memtest - Windows
  • PC3200GH 1GB #2 – 3.56V - Memtest - Windows
  • PC3200ZX 1GB #1 – 2.69V - Memtest - Windows
  • PC3200ZX 1GB #2 – 2.66V - Memtest - Windows
  • PC4400FC 1GB – 3.06V - Memtest - Windows
  • PC4400LE 1GB #1 – 3.06V - Memtest - Windows
  • PC4400LE 1GB #2 – 3.06V - Memtest - Windows
  • PC4800FF 1GB – 2.80V - Memtest - Windows
  • PC4800FR 1GB #1 – 3.06V - Memtest - Windows
  • PC4800FR 1GB #2 – 2.94V - Memtest - Windows
  • PC4800LA 512Mb – 2.98V - Memtest - Windows


    These timings can be called SLOW; The PC4800FR didn’t show us great results at CL2.5-3-3-6 1T, but here see another picture. At 2t-timings this memory is able to run up to 25 MHz faster then at 1T, and this makes it the fastest dual channel 1GB kit in this round.

    The PC3200GH, PC3200ZX and PC4800LA kits don’t show any advantages at 2T; the PC4400FC kit’s performance doesn’t impress either: 2MHz more.

    Madshrimps (c)


    And these are the result we have for you! For those who love to stare at graphs, we have added some more on the next page, which allow you to view the results of each kit separately. It’s a quick way to see which kit gains the most from relaxing the memory timings.
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