![]() ![]() We always advise starting with a safe setting. ![]() DRAM Calculator lets you check which memory timing settings will be safe and fast. The developer of this tool (1usmus) is active on our forums, and you can find him and more info here. You can always find the latest version of this useful program in our download section. An unstable configuration usually results in application or system crashes, but it can also lead to file corruption even without any crashes, making your operating system installation unusable and leading to gradual data loss.įor starters, we’d advise looking at this article: DRAM Calculator for Ryzen 1.7.2 – what is new?. When it comes to RAM, it’s a good idea to approach overclocking with caution. You’ll find more information about them on page 2. memory latency (how long it takes to transfer data from the RAM to the processor) – this is mainly influenced by the so-called memory timings.memory bandwidth (how much data can be transferred at once) – this is mainly influenced by the frequency.“Enabling 2:1 mode crosses clock domain boundaries, imparting a DRAM latency penalty of approximately 9ns that may be overcome with additional memory clocks, higher CPU frequencies, or sub-timing adjustments.” But what could you achieve if you used faster sticks or fine-tuned the ones that you already have? To simplify things, let’s say that memory speed is made up of: With memory speeds greater than 3600 MHz (a memory clock greater than 1800MHz), the memory controller clock keeps 1800MHz, however the Infinity Fabric link changes to a 1:2 ratio state. This is useful when you’re trying to run the RAM at more than 3600 MHz. ![]() The Infinity Fabric frequency can either be synchronized to the memory clock or unlinked from it, using various dividers and multipliers. With AMD Ryzen systems, you need to remember that the memory clock, memory controller clock, and Infinity Fabric clock run at a 1:1:1 ratio e.g., 1600MHz (x2 double-data-rate) for all three you apply an XMP of 3200MHz. Officially Matisse based processors support memory speeds up to 3200MHz but can run kits up to 3600MHz without a problem. The two 7nm 8-core CPU chiplets communicate with this cIOD die over 100 GB/s through the interconnect that is marketed as Infinity Fabric links. Inside that cIOD, the memory controller is located. There are two main classes of Zen 2 chiplet: the Core Chiplet die (CCD) holding the eight processor cores, and the IO Chiplet die (cIOD), basically, a chipset die each Matisse CPU can have up to two CCDs (2x8 cores) and will always have one cIOD. Below you can see an 8 core and 16 core processor package, Matisse aka Ryzen 3000 aka ZEN2. Any Matisse CPU is comprised of two or optionally three dies, aka 'chiplet' dies that between them cover to make the processor. First stop, we need to look into the topology of AMDs memory controllers relative to their location on the processor package. In this article, we are going to zoom in a little and try to show what exactly the sweet spot is for Ryzen 3000 processors in regards to memory and latency (with gaming in mind). The effect of faster low latency timed DDR4 memory has been there and very visual, much more so compared to Intel. Different types of memory often resulted in different performance levels in CPU limited gaming (no GPU bound). So that's a dynamic shift overall.ĭDR4 memory has been a topic of discussion ever since the first generation Ryzen processors have been released. The DDR4 memory controller is located in the processor's 12 nm I/O controller die. See, AMD made a change in 3 rd generations Ryzen, aka "Zen 2" processors, splitting the memory controllers from the die that contains CPU cores. In this article, we'll zoom in on specifically that. The impact of memory timings and frequency on AMD Ryzen 3000 systems in games has been a topic of discussion. ![]() Hey all and welcome towards an article, not so much a review. The game performance effect of DDR4 frequency and latency for Ryzen 3000 AMD Ryzen RAM scaling - performance effect in games ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |