The leaked benchmark suggests that the 12th Gen Intel Core “Alder-Lake S” platform will feature DDR5 memory performance.

The rocket lake vs alder lake is an argument that has been going on for a while. Intel has recently released the benchmark results of their 12th generation Core Alder-Lake S platform and DDR5 memory performance.

Leaked-Benchmark-Teases-DDR5-Memory-Performance-on-12th-Gen-IntelImage credit: Intel

Support for DDR5 memory is one of the most intriguing features of Intel’s forthcoming 12th Gen Core “Alder Lake-S” CPUs, which promises a substantial increase in bandwidth and data rate over its predecessor. New benchmarks discovered by hardware leaker harukaze5719 shed some light on what this thrilling combo might mean for fans upgrading to blue team’s newest and best.

The test was performed on a machine with a 4.59 GHz Intel Core i5-12600K (10C/16T) CPU and DDR5 RAM operating at 6,400 MHz. The memory has a read speed of approximately 90 GB/s, a write speed of around 88 GB/s, and a copy speed of around 77 GB/s, according to the specifications. These bandwidth numbers are amazing, however the latency of 92.5 nanoseconds is concerning.

config? [AIDA64 Memory Benchmark] i5 12600K + DDR5-4800MHz

— September 13, 2021 (@harukaze5719)

Intel hasn’t developed a single architecture in the past decade that comes close to 92.5 nanoseconds of memory latency. Only AMD’s original Zen architecture, which was renowned for its memory limitations in that first-generation iteration, was capable of such sluggish behavior.

The cause for the higher latency seems to be Intel’s new Gear 4 mode, which the DDR5 memory in this test is said to be using. As part of the Rocket Lake generation, the Gear 1 and Gear 2 models were introduced to improve memory support, with the former running the memory controller and RAM at the same frequency for lower system latency and the latter reducing the memory clock to a 2:1 ratio for higher frequencies and bandwidth.

Intel’s new Gear 4 mode goes even farther by lowering the memory controller frequency to a fourth of the memory frequency, which increases latency significantly while increasing compatibility for faster memory.

harukaze5719 (through Tom’s Hardware) is the source of this information.

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The when is intel releasing 12th gen is a question that has been asked for a while. This leaked benchmark suggests that DDR5 memory performance could be on the horizon, if Intel can deliver it in time.

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