SPD Information
When we read out the SPD, we find all the important information about the modules. On the one hand, we find the confirmation that 8 x8 16 Gbit memory ICs are installed in each module, which results in the 16 GB capacity and the 64-bit interface. Unfortunately, only the manufacturer “SK Hynix” is specified here, but not the revision. The power supply is provided by a PMIC (Power Management Integrated Circuit) from Richtek Power with stepping 1.2, which is specified as an “OC PMIC” and can thus supply more than 1,435 V VDD and VDDQ.
The XMP profile naturally contains the clock rate of DDR5-6800 and the primary timings 34-45-45-108 at 1.4 V VDD and VDDQ. In addition, VPP is specified for 1.8 V and VDD2 or the memory controller voltage with 1.1 V, as well as the subtimings tRFC2 543, tRFCpb 441 and tWR 102.
Heatsink test
As usual, we continue to test the cooling solution of the working memory modules and how much thermal potential is available for overclocking accordingly. Implicitly, of course, this also tests whether a kit survives the stress test in XMP operation at all without becoming unstable – yes, that also happens!
With the stress test Testmem5 v0.12 and the profile “Extreme1@Anta777” and without a slot distance between the modules, the highest possible heat load is generated. Together with another temperature sensor on the testbench, the delta to the ambient temperature is determined, once passively cooled and once actively cooled with a 120 mm fan, which lies directly on the modules and blows downwards at 2000 rpm.
Although the 6800 kit from today’s test uses the same 1.4V voltage as the previously tested 6400 Trident Z5 RGB modules, today’s test kit remains significantly cooler with just under 10K less in passively cooled mode and 1.6K less with active cooling. So either the new Hynix A-Die ICs produce less waste heat than the M-Die predecessors, and or G.Skill has optimized their cooling concept since then.
For better clarity, the manufacturers and product names of the RAM kits have been abbreviated as follows:
- CDPR: Corsair Dominator Platinum RGB
- TGDR: Teamgroup DELTA RGB
- CVR: Corsair Vengeance RGB
- GSTZ5R: G.Skill Trident Z5 RGB
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