Filed under: Alder Lake, Core i5-12600K, DDR5, DDR5-6400, Featured, Hardware, Intel, Leak, News, Rumor, Sticky

Surprisingly High Latency Discovered During Alder Lake Test With DDR5-6400…

Twitter user @harukaze5719 posted this on their Twitter feed a few times in the past:

The graphic posted is of a leaked benchmark of the new Alder Lake from Intel that was appeared to be jogging with its most recent Gear 4 placing. The benchmark shows that it was working with an Intel Main i5-12600K 10-core CPU with DDR5 memory. The CPU was jogging the AIDA64 memory and cache check even though the DDR5 memory was using DDR5-6400 options, with a result of up to 90GB per next. What was shocking was that the latency on memory was processing at ninety two.5ns.

The Twitter consumer adopted the picture with more proof of the testing:

The latency is equaled to AMD’s initially technology Zen architecture, which experienced continued challenges with memory composition all through its first launch.

Intel’s Rocket Lake collection was the 1st adaptation of gear modes — Equipment 1 and Equipment 2 — and observed advancements on memory help with latency taking a strike. Equipment one was the default environment for Rocket Lake that processed both of those memory controller and RAM at the same frequencies, but also showed incredibly reduced latency stages on the program. Gear 2 setting was produced to decrease the memory clock and trigger the memory controller’s clock to operate at 50% less frequency (a ratio of two:1). This would then result in the system to show amplified bandwidth at the larger frequency prompted by the drop of memory processing.

Tom’s Hardware had examined Rocket Lake shortly right after release, and when hunting at the effects, they found an intriguing concern with Equipment two configurations:

When we tested both equally gears in our Rocket Lake critique, we observed Equipment 2 took a noticeable toll on method latency, instantly impacting gaming functionality. We analyzed a Core i5-11600K with Gear one method that includes DDR4-2933 RAM, and DDR4-3200 RAM for Equipment two. Despite the quicker memory speeds on Equipment 2, we observed that Equipment 1 was continuously more quickly, with 5% greater gaming general performance. The memory latency final results showed a very similar craze, with 59.3ns for Gear two method and 52.3ns for Equipment 1. The latency final results would be even far more pronounced if each configurations ran at the identical RAM frequency.

Gear 4 setting is slated to take out 25% of the memory frequency, making it possible for for the CPU to allow for substantial-pace memory but with an improved latency loss.

So if the leaked latency effects are genuine, with Gear four practically doubling the volume of memory latency of Gear 1, then that location will likely be pretty useless for Computer system gaming and for other consumer-primarily based applications. Frequently, system latency is far far more crucial than memory bandwidth, with only a few of memory-hungry applications really breaking that rule. So we will have to see how these variations materialize at the time Alder Lake launches later on this yr.

No a person has finish knowledge of the greatest amount of frequency on memory on the newer and higher dollar DDR5 memory, outside the house of the information that it is capable of reaching 12600MT/s. The speculation is that Gear 4 manner will glow in respect to all those speeds.

Supply: @harukaze5719 on Twitter, Tom’s Hardware

The article Remarkably Substantial Latency Discovered In the course of Alder Lake Check With DDR5-6400 Memory by Jason R. Wilson appeared to start with on Wccftech.