Compared to DDR4-3200 and DDR4-3600, DDR4-4000 provided small uplifts in the range of 1.8% and 0.5%, respectively. The performance gap between DDR4-2133 and DDR4-4000 stretched as high as 7.7%. Unsurprisingly, DDR4-4000 is the ultimate goal if your processor and budget allow for it. Compared to DDR4-3200, however, DDR4-3600 was only 1.3% faster. It delivered 7.2% more performance than DDR4-2133. Our test results confirmed that DDR4-3600 is still the sweet spot for this generation, though. We recorded a 5.8% performance difference between DDR4-2133 and DDR4-3200, the native frequency supported on Zen 3. Memory ScalingĭDR4-3200 should unquestionably be the starting point for Ryzen 5000. Some may require more manual tuning time than others, of course. The high-performance memory kits are more likely to do 1T at the advertised frequency and timings. Since we can't test every single scenario, you'll have to do some exploring yourself.ĭon't expect every memory kit to run at 1T, either. At the end of the day, your choice really depends on the type of workloads you put your Zen 3 processor through. We can conclude that there is no simple answer to whether you should enable or disable Geardown Mode. We saw the opposite happen in Premiere and Photoshop, where Geardown mode increased performance by up to 2.4% and 1.4%, respectively. Manually tweaking the memory increased the margin to 3.5%. We discovered certain scenarios where enabling or disabling Geardown Mode yielded a small performance gain.įor example, in the Microsoft Office benchmark, disabling Geardown Mode boosted performance by up to 2.7%. However, average results don't tell the whole story. Overall, the option had little impact on performance, with the difference amounting to less than a 1% delta. Geardown Mode came back with mixed results in our testing. To explore the different variables in play, we tested a third configuration with the memory kit running at the default timings, but at 1T. Disabling the option restores the timings to default at 2T. When the option is enabled, Geardown Mode configures the timings to 16-16-16-36 timings at 1T. If your memory kit has an odd CAS Latency (CL) value, Geardown Mode basically rounds it up to the nearest even number and sets the command rate (CR) to 1T. Geardown Mode (GDM) is enabled on AMD motherboards whenever the memory runs above the DDR4-2666 standard. Furthermore, we updated our test system's drivers, benchmarking programs, and game clients to the latest versions at the time of testing. On the software front, we used a fresh 64-bit installation of Windows 10 Professional with all available updates. We updated the firmware for our Gigabyte B550 Aorus Master to the latest publicly-available revision. Windows 10 Professional 64-bit with October 2020 Update As usual, the trio needs to be on the same page for optimal operation, while breaking that synchronicity results in a heavy latency penalty that's detrimental to performance in some applications. The Infinity Fabric Clock (FCLK) continues to be in a permanent relationship with the unified memory controller clock (UCLK) and memory clock (MEMCLK) in a 1:1:1 ratio. That's an important consideration when selecting and tuning Ryzen's memory. On the memory front, Ryzen 5000 chips inherited the same I/O die and dual-channel memory controller as their predecessors, therefore, the mechanics remain unchanged. Ryzen 5000 wields AMD's latest Zen 3 cores that introduced important IPC gains, among other microarchitectural improvements. Four years later, AMD's foot is still on the pedal and taking the fight to Intel, with its latest army of Ryzen 5000 (codename Vermeer) processors leading the charge. After being off track for a few years, the chipmaker ultimately found the winning formula with its Zen microarchitecture. It's not always easy to stay on the right path, and AMD, like any other company, has had its ups and downs.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |