Benchmarks – OC
In the overclocked state, almost all other kits or ICs can unfortunately increase significantly more than the Samsung 16 Gbit S-Die. However, the configuration with maximum clock rate at DDR5-6800 is even slower than the XMP configuration in some cases, due to the relaxed timings required for this. For example, while the XMP config with 6000C38 achieves 92.6 GB/s in the AIDA64 Read test, this 6800C38 setting only achieves 75.1 GB/s. This difference can almost solely be explained by tRRD_dg 8 or 11, because this timing is relevant for practically every RAM operation and therefore almost linearly 11/8, i.e. 25% of the performance is lost, especially in bandwidth-sensitive tasks.
In Geekbench 3, the kit can even be almost as slow as the !DDR4! Reference-Config. Of course, these are my OC settings and not those of the kit out of the box and I was only interested in determining the performance at maximum clock speed. Nevertheless, this once again shows impressively how important RAM timings can be and that more clock speed is not automatically better.
On the other hand, the config with DDR5-6133 and constant or sharpened timings relative to the XMP can gain a little performance everywhere. In the same AIDA64 Read test, it is only 98.5 GB/s, but that is still a good 6% more performance than in the XMP, about half of which comes from the slightly higher clock or the slightly tighter timings.
All in all, the gain remains rather academic and I wouldn’t call Samsung’s 16 Gbit S-Die ICs an OC insider tip. Almost every other kit, even those that are not made for OC, have more potential. The fact that Hynix is right at the forefront here with its DDR5 memory chips is nothing new, but Micron has now also followed suit with its 16 and 24 Gbit variants. This cannot be said of Samsung, rather the opposite, if you look at the Samsung 16 Gbit B-Die reference config, which was already available 2 years ago at the launch of DDR5.
For the sake of clarity, the manufacturer and product names of the RAM kits have been abbreviated as follows:
- CDPR: Corsair Dominator Platinum RGB
- TGDR: Teamgroup DELTA RGB
- CV: Corsair Vengeance
- CVR: Corsair Vengeance RGB
- GSTZ5R: G.Skill Trident Z5 RGB
- 4S8B_DR: DDR4 Samsung 8 Gbit B-die Dual-Rank
- 5H16M: DDR5 Hynix 16 Gbit M-die
- 5H16A: DDR5 Hynix 16 Gbit A-die
- 5H24M: DDR5 Hynix 24 Gbit M-die
- 5M16A: DDR5 Micron 16 Gbit RevA
- 5M16D: DDR5 Micron 16 Gbit RevD
- 5M24B: DDR5 Micron 24 Gbit RevB
- 5S16B: DDR5 Samsung 16 Gbit B-Die
- 5S16S: DDR5 Samsung 16 Gbit S-Die
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