G.SKILL F3-12800CL7D-2GBHZ / Ddr3-1600 Testreport [updated]

[kakaroto]

G.Skill released a new DDR3 product for the high-end computing, the F3-12800CL7D-2GBHZ. From the productcode you can see this memory runs at DDR3-1600 (PC12800) with a CAS# latency of 7 clockcycles. The "HZ" serie stands for a high-end product from G.Skill, like the DDR1 PC4000 2GBHZ.

Last week I received one of those kits from G.Skill. As we usual expect from G.Skill this product comes with a pretty nice box.



Inside the box you can find two 1GB modules with aluminium heatspreaders.



As you also can see on the sticker, this memory is rated at DDR3-1600 with main memory latencies of CL7-7-7-18 (Tcl/Trcd/Trp/Tras) at 1.9V.

I have tested this memory on a DDR3 based platform with the following components:

-Intel Core 2 Duo E6550 ES
-Asus P5K3 Deluxe P35 (BIOS 0704)
-Enermax Liberty 620W

Now the results!

Stock testing...

I used Vista , so the benchmarks results are a little slower then on XP.

DDR3-1600 7-7-7-18 2T 1.9V



DDR3-1800 7-6-5-18 2T 1.9v

It was easy to lower the Trcd and Trp to 6 and 5. It seems it does not require more vdimm but the performance improvement compare to 7-7 is minimum.



DDR3-1850 7-6-5-18 2T 2.1V

I could achieve a maximum stable clock at DDR3-1850. I think this has todo with my mainboard because the memory controller freaks out at DDR3-1900, which results in a endless loops of errors in Memtest.
[UPDATE]After switching the modules from the orange banks to the black banks, I have come to some interesting results. DDR3-1900 7-6-5-18 2T was very stable at 2.1V.



DDR3-1900 7-6-5-18 2T 2.1V



Other benchmarks and comparison...

Everest Bandwidth and Latency sheet



SuperPI 32M sheet



The F3-12800CL7D-2GBHZ clocks really well, it can scale up without any sweat and higher vdimm to DDR3-1800 with CL7-6-5-18.

[nut311]

nice run....
PC3-12800 only "$479" Cheapest Micron D9GTR?

[metro.cl]

which slots did you use?

P35 has a bug with orange slots.

[albertyin]

it should be F3-12800CL7D-2GBHZ

[kakaroto]

nice run....
PC3-12800 only "$479" Cheapest Micron D9GTR?

At Newegg they are indeed the cheapest now..

which slots did you use?

P35 has a bug with orange slots.

I used the orange slots. Thanks for the info, i will try the black slots and see if I see any improvements.

it should be F3-12800CL7D-2GBHZ

You are right, I changed it!

[kakaroto]

which slots did you use?

P35 has a bug with orange slots.

Thanks, I have updated my results. When I put the modules in the black banks, DDR3-1900 was very stable

[krampak]

I've just tried a pair of those memories (but on orange slots...). It does (at 1.9V) DDR3 1280 Cas 5-5-4-12 1T, DDR3 1333 at 6-5-5-12 1T, DDR3 1600 at 7-6-6-12 1T and DDR3 1828 Cas 7-7-7-12 2T (that at 2.1V), all on a Asus P5K3 with last bios.

[kakaroto]

I've just tried a pair of those memories (but on orange slots...). It does (at 1.9V) DDR3 1280 Cas 5-5-4-12 1T, DDR3 1333 at 6-5-5-12 1T, DDR3 1600 at 7-6-6-12 1T and DDR3 1828 Cas 7-7-7-12 2T (that at 2.1V), all on a Asus P5K3 with last bios.

You definitely need to try the black banks. I also set the Northbridge to 1.55v, 1.7v was too high.

Here are my subtimings;

[M.Beier]

Very nice, cant wait to get mine into action, have had them for a couple of weeks, but unfortunately I couldnt get a wolfdale sample So I'll test in 10 days once I get the wolfie E8500...

[Lalaboy]

I have too......

[metro.cl]

Thanks, I have updated my results. When I put the modules in the black banks, DDR3-1900 was very stable

No problem i had some bad nightmares with orange slots

[krampak]

Wow.. those black slots are really better than the orange ones. I've gone from 1828 7-7-7 2T 2.1V (7-7-6 was unstable) to 1828 7-6-5 1T 2.1V !

[kakaroto]

No problem i had some bad nightmares with orange slots

I wish I had that nightmare, would save me a lot of houres spending on the settings.