JEDEC DDR5-5600 1.1 V
Of course, the modules are only binned and specified for DDR5-5600 with JEDEC timings and 1.1 V VDD and VDDQ and thus the modules are plug and play on all Z690 DDR5 motherboards.
The complete timings I have screenshot here for your reference. tCL 46, tRCD 45, tRP 45, tRAS 89, tWR 84, tRFC2 447, tRFCpb 364 with DDR5-5600 are the authoritative timings from the SPD here. While the primary timings have been increased analogously to the clock rate, the other timings are interestingly already a bit tighter than in most DDR5-4800 JEDEC kits, so that a small performance advantage should already be hidden here.
Stable overclocking to 7466c34 1.4 V
If you want to turn the clock screw yourself, you also need a BIOS version with corresponding optimizations for the new Hynix A-Die ICs, and even then that is no guarantee for success. Although our standard board for DDR5 tests, the Asus Maximus Z690 Apex, has also already received an update to version 1701, I cannot really stabilize any noteworthy clock rates on my motherboard with it. Either the training hangs after postcode 55, or the system crashes immediately after the RAM stress test starts.
The MSI MEG Z690 Unify-X also has an A-Die BIOS update to version A72u3. Stabilizing higher clock rates is much easier here, so that this is ultimately also used as the test platform for this test. After all, DDR5-7466 with primary timings 34-44-37-34, 2T command rate, fully optimized subtimings, and 1.4 V VDD/VDDQ is the highest of feelings and also the second setting that we chase through the benchmarks on the next pages.
Higher clock rates or higher voltages unfortunately only lead to instability with my kit, even with the PMIC unlock of the MSI BIOS. The timings aren’t a revolution compared to M-Die and are even a bit more conservative in places, but the clock rate can be increased significantly and that at a relatively low voltage. By the way, a 120 mm fan takes over the job of the non-existent heatspreader.
Single Channel 8000c38 1.4V
If screenshots of other A-Die tasters are to be believed, the stable clock rates possible for me are even relatively modest. DDR5-7800 at tCL 32 and 1.6 V VDD and VDDQ are probably the norm here, but my kit just can’t do it, at least not with both modules installed. The modules can very well achieve higher clock rates individually and can also run benchmarks in the OS. I suspect that this is caused by strong differences between my two modules, which may simply overwhelm the early training algorithms for the new ICs.
The EVGA Z690 Dark Kingpin motherboard with the latest BIOS 1.15 also behaves exactly the same with the exotic RAM sticks, 7466c34 in dual-channel but significantly more in single-channel. As an example, I have a small example of how fast a single Hynix A-Die module can be operated without paying attention to 100% stability. However, the performance is also impressive here and should still be faster than most DDR4 kits in dual-channel with XMP timings.
The complete list of the test hardware used is still available in tabular form below:
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Test systems |
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| Housing: |
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For better clarity, the following abbreviations are used in the diagrams:
- 12900K: Intel Core i9-12900K CPU
- 51/0/49: Multipliers for P-cores x51, E-cores 0 (deactivated), cache x49 at BCLK 100 MHz
- TZ5: Trident Z5 module from G.Skill
- XPGL: XPG LANCER RGB DDR5 modules from ADATA
- DPR: Dominator Platinum RGB DDR5 modules from Corsair
- FB: Fury Beast DDR5 modules from Kingston
- DR: Dual-Rank, if not specified Single-Rank
- 3600c14: configuration with 3600 Mbps and tCL timing 14, see screenshots for all timings
- 1T, 2T: Command rate 1T or 2T
- *: completely manually set subtimings, see screenshots
- G1, G2: Gear 1, Gear2 – ratio between IMC clock and RAM clock, Gear 1 = 1:1, Gear 2 = 1:2
- H16M: SK Hynix 16 Gbit M-Die memory chips
- S16B: Samsung 16 Gbit B-Die Memory Chips
- ❄: active cooling with a 120 mm 2000 rpm fan
Timings of the DDR4 comparison config:
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