Best RAM for the Ryzen 7 7800X3D: Corsair Vengeance RGB EXPO The best RAM to pair up with the Ryzen 7 7800X3D is Corsair's Vengeance RGB EXPO kit. This set of DIMMs strikes a fine balance between performance, aesthetic, and pricing.
While you can put off a DDR4 memory upgrade to a later date if you go Intel in terms of CPU choices, AMD's faster Ryzen 7 7800X3D only works with DDR5 memory currently, making it a relative no-brainer to upgrade to the newer, faster RAM modules at a time when they are trading at deeper discounts than before.
Skill Trident Z5 NEO RGB. The G. Skill Trident Z5 is one of the best DDR5 kits available for Ryzen 7000 series processors, and with its industry-leading frequency and timings, it's a perfect match for the flagship 7950X3D.
Other features include support for PCIe Gen 5 technology to take full advantage of high-bandwidth graphics cards and storage drives. The Ryzen 9 7900X3D also supports up to 128GB of 5200 MHz DDR5 ECC memory with compatible motherboards, which may be overclocked using AMD EXPO profiles for higher gaming performance.
The RAM speed for the optimized performance for the Ryzen 3000 series processors or "Sweet Spot" is 3600Mhz. So in that respect you have a good RAM speed for your Ryzen 3600 processor. Most motherboards doesn't have many RAM Sets of 128GB that shows it to be compatible.
Is 16GB 3600Mhz enough for gaming? Well, that depends on what you are doing. If you are gaming on a Ryzen CPU (or even an intel CPU) then the 3600MHz will be far more important. If you are doing large workstation tasks like complex video editing then the 32GB of RAM will be very useful.
Usually no. 4000MHz RAM will be slower unless you overclock your Infinity Fabric (FCLK/Fclock) and memory controller (UCLK/Uclock). Ryzen CPUs work best with RAM running synchronously with the CPU's “Infinity Fabric” and memory controller.
The 4800MHz launch speed is comparable to DDR4 memory speeds under extreme performance and is two times faster than 3200MHz. Since it's optimised for multitasking, your computer will be more responsive.
The sweet spot for Ryzen 7000 parts is DDR5-6000 due to how AMD's infinity fabric works, unlike Intel's offerings, which scale with memory speeds pretty linearly.
They're offered at speeds up to 6,000MHz, which is all you need on an AM5 motherboard.
For Intel's 12th generation “Alder Lake” processors, DDR4 will run at speeds up to 3200 Megatransfers per second (MT/s), and DDR5 will run up to 4800 MT/s. This means DDR5 transfers data at up to 38.4 gigabytes per second (GB/s), while DDR4 tops out at 25.6 GB/s.
The fastest memory officially supported by the 7800X3D is 5200Mhz. However, when benchmarking it LTT were able to use a 6000Mhz kit. My understanding is that such kits may be somewhat hit of miss (it might work, it might only run at 5200 or it might not work at all).
The 7800X3D isn't really designed to take on productivity tasks, so this isn't surprising, and for that, you'd really want the 7950X3D instead or Intel's Core i9-13900K. But if you only care about gaming, the 7800X3D is the obvious choice given the combination of performance improvements, price, and power usage.
The highest officially supported memory speed is 5200 MHz, but with overclocking (and the right memory modules) you can go even higher. ECC memory is supported, too, which is an important capability for mission-critical systems, to avoid data corruption.
DDR4 4000 MHz CL 18 RAM has a higher frequency than the 3200 MHz CL 16 RAM, which means that it can potentially transfer data at a faster rate. However, the higher frequency may also result in higher power consumption and potentially lower reliability.
Under memory-intensive workloads, DDR5 can deliver up to 2x the bandwidth, per an internal simulation of dual ranked x8 modules in client platforms. DDR5 4,800MT/s speeds are comparable to extreme-performance DDR4 memory speeds and 1.5x faster than maximum standard DDR4 speeds of 3200MT/s.
Is 64/128 GB of RAM Overkill? For the majority of users, it is. If you plan on building a PC purely for gaming and some general, basic, everyday activity, 64 GB of RAM is just too much. The amount of RAM you need will ultimately depend on your workload.
The short answer is yes, 4000MHz RAM is almost perfect for the Ryzen 5000 series CPUs. This is because AMD has optimized these new processors to work extremely well with RAM kits of these speeds making it a 'sweet spot'.
The difference between 3600 and 4000 Mhz would not be noticeable in games - in most games you would not notice any performance difference at all. Go with the Corsair sticks and don't worry about it, they'll work fine.
As we noted after our Intel testing, 4000MHz or higher RAM only really makes sense for high-end systems, like a Ryzen 9 3950X or Core i9 10900K with an RTX 2080 Ti, where you're already essentially at the limits of consumer PC gaming. For all that is holy, don't forget to set your RAM to its XMP speeds in the BIOS.
If you want a computer that is fast but doesn't cost too much money, then a 3200MHz version will be fine. However, when you wish for a high-speed computer, you want to choose one with the 3600MHz RAM model instead of a slower version with less memory capacity.
You don't need the fastest RAM kit: We recommend spending on DDR4 memory with 3200MHz to 3600MHz frequencies for both Intel and AMD builds. The kits faster than these tend to jump up in price with less impact on the performance.
Let's keep it simple. Amd ryzen processors recommend using 3600 mhz ram which significantly boosts ryzen's performance while most of the intel chips prefer to run on 2666 mhz untill you enable xmp profile (overclock). So I would recommend to go with 3200 mhz as you can overclock it to 3600 mhz .