Will 16 GB of DDR4 2400Mhz RAM bottleneck a Ryzen 7 2700x?

JJH0421

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Aug 7, 2015
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Looking into getting a new computer and thought these specs looked good for the price ($1350):

Gaming PC (AMD Ryzen 7 2700 X 3.7GHz CPU,16GB DDR4, NVIDIA GTX 1070 Ti 8GB, 240GB SSD, 2TB HDD, 802.11AC WIFI & Win10 64-Bit) Blk

However, according to another person who uses the 1700 model he claims that 2400Mhz will bottleneck the CPU. How true is this claim? From what I've gathered, the speed shouldn't be an issue in general. His circumstances also make it questionable, he renders videos using solely his CPU because his GPU isn't capable of doing so. I feel that this could be why his CPU was getting bottlenecked if it was (he had to leave before I could formally ask). I'm unfamiliar with desktops as a whole so any information would be useful.

In case, my uses are necessary, I intend to mostly buy it for playing video games (some being graphically intense), and other miscellaneous things like typing documents, coding (will begin studying IT, don't know how much load this entails, and other means of entertainment like Netflix).
 
Solution


Its tough because if you wait, stuff will always be cheaper, but new stuff will be coming out, its a viscous cycle. Many times you just need to say "today is the...
Faster ram pushes more performance from ryzen.

Its as simple as that.

In some scenarios the performance difference between 2400 & 3200mHz ram can be as much as 10%.

Not a bottleneck per se , 2400mHz ram will work fine , you'll still get great performance but not 100% optimal.
 
Ryzen processors are noticeably affected my Ram Speed. While I hesitate to use the word "Bottleneck" in this instance, the CPU will be limited from its maximum performance with only 2400mhz ram. I recommend no less than a 3000mhz kit when building a Ryzen system for best performance.
 
No; however, you'd be best served by getting at least 3000 or 3200 Mhz RAM if you're looking to get the performance you expect. Anything faster than that won't provide you with any truly meaningful gains from a gaming perspective. If you're using very RAM intensive applications such as CAD or things like that which really need the fastest RAM you can afford.
 


Would you say for my general purposes the limitation is negligible, or still important? I'd run somewhat intensive games like the upcoming Monster Hunter World for example, but I don't know where on the scale of performance gaming would be rated in contrast to the limited performance.
 


Could you be a bit more specific as to what you mean by "the performance you expect"? I'm quite new to all this, and frankly don't know if I'd notice anything lacking if I were satisfied with the performance I'd be seeing.
 


What I meant was fast and without lag or issue. You may not see much of a difference between the two speeds unless you're doing something that requires a lot of RAM, but it would be in your best interest to not cheap out. I don't suggest you going any lower than 3000Mhz.
 


I would call it important. As mentioned by MadMatt above it can be close to 10% especially in intensive games. The Processor speed is specifically tied to Memory clock rate due to the Infinity Fabric it uses to communicate between cores and onboard components.
 


What would you say to accepting the current specs for now, and upgrade the RAM at a later time then. Recently posted another question on how "worth it" this build is at this time (also considering the future components that'll be coming out in the next few months). Unfortunately I can't find the mother board but a review listed their older one (didn't have the same cpu at least) as a GA-AX370-Gaming, would this be compatible with 3000Mhz RAM? Even if it's an older model I'm under the impression most motherboards these days support the variety in RAM.
 


What would be your opinion on the idea of getting this as it is, and then upgrading the RAM to 3000 at a later time? This build looks quite tempting in my opinion even with the next generation on the way, and so believe that getting now rather than later would be better. Unfortunately the mobo isn't specified but a review with a few different components (at least the cpu is a ryzen 1700) listed their mobo as an GA-AX370-Gaming, is this compatible in terms with the up-gradable RAM? I'm of the thought that most mobos these days can support the multiple varieties of components but I'm unsure.
 


All of the Ryzen boards have been updated where ram support issues are mostly gone. Just update to the latest BIOS when you are configuring the system. As for X370 motherboards in general they will be supported through at least 2020 with new processors as per AMD.

Buying 2400mhz ram now only to upgrade later is a massive waste of money, 3000mhz ram is not that much more, and whatever you spend on the 2400mhz ram now will be wasted.
 


Hmmm, unfortunately this is on Amazon and doesn't provide the option to use a particular component over another. The price seems very good, but do you have an alternative suggestion? I'd rather avoid building one myself due to any potential errors that could occur as a result of me being involved.
 


I'm confused, what do you mean? Are you buying a bundle from Amazon or something? Can you give me a link?
 


https://www.amazon.com/gp/product/B076VFVKGR/ref=ox_sc_sfl_title_3?ie=UTF8&psc=1&smid=ATVPDKIKX0DER

Apologies for any misunderstanding, above is the link to the prebuilt PC.
 


OK I did not realize you were talking about a prebuilt PC. On top of that, are you willing to build it yourself? Because we have hundreds of threads here talking about what hot garbage Cyberpower is. Also you won't be able to change the ram in that system without buying it separately. Instead we can help you build it yourself here. This is an equivalent system, in parts, from Amazon. You'd need to build it yourself, but its cheaper and MUCH better quality parts.

PCPartPicker part list / Price breakdown by merchant

CPU: AMD - Ryzen 7 2700X 3.7GHz 8-Core Processor ($319.99 @ Amazon)
Motherboard: Gigabyte - X470 AORUS ULTRA GAMING ATX AM4 Motherboard ($131.58 @ Amazon)
Memory: G.Skill - Ripjaws V Series 16GB (2 x 8GB) DDR4-3000 Memory
Storage: Samsung - 860 Evo 250GB 2.5" Solid State Drive ($76.74 @ Amazon)
Storage: Seagate - Barracuda 2TB 3.5" 7200RPM Internal Hard Drive ($58.99 @ Amazon)
Video Card: Gigabyte - GeForce GTX 1070 Ti 8GB WINDFORCE Video Card ($458.90 @ Amazon)
Case: Deepcool - TESSERACT SW ATX Mid Tower Case ($54.48 @ Amazon)
Power Supply: SeaSonic - FOCUS Plus Gold 550W 80+ Gold Certified Fully-Modular ATX Power Supply ($70.45 @ Amazon)
Operating System: Microsoft - Windows 10 Home OEM 64-bit ($99.99 @ Amazon)
Total: $1271.12
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2018-07-12 15:54 EDT-0400

The only thing I didn't include was a WiFi card that the other has. We can add that for under $30 if you need it.
 


I've often heard of how bad Cyberpowerpc is, only thought to look at them because my current laptop is from them (and well... it works). I honestly think I'd ruin it if I were to build it myself, at least with a prebuilt and warranty any issues won't be my fault. At least that's how I look at it. Personally, I'd like to have niceties like a full tower, liquid cooling and a stronger PSU (based on what you provided). If I do build then perhaps it would serve me better to wait until Black Friday or something... I admittedly feel a bit rushed on this decision since my laptop is proving to be more and more displeasing.

EDIT: Well, it's mostly heating and some more graphically intense games not being playable that are grinding my gears, for the most part it's fine.
 


Laptops are a lot harder to mess up, Cyberpower doesn't manufacture them only does final assembly, they are made by an OEM that makes many other brands like MSI and Sager. Building yourself is NOT hard, you have us here to help and there are many videos out there to help as well.

The nice part of building yourself is we can change those things (tower, liquid cooler, etc). The PSU I provided is a Seasonic which is the best in the business and more than enough to power your system, you don't need anything bigger. The PSU that comes in that Cyberpower is house fire quality garbage. Liquid cooling is nice but only if you buy the right cooler and only if you are overclocking. Otherwise its a waste of money, and on top of that they are often louder than a good quality air cooler at half the price that will do just as well.

As for Black Friday there are no guarantees, and many times those deals are for obsolete equipment. Amazon Prime day is coming though, SOMETIMES you can get a great deal if you are quick there. All parts you buy on their own have their own warranty, its better than the one Cyberpower provides.
 


You make a pretty compelling argument... The thought of using this community to help with any build never really crossed my mind (used this place once to troubleshoot something years ago). I'll consider this greatly, as for the whole Black Friday thing, I think the next few months in particular will likely see some changes with CPU/GPU prices, especially now that I read this article that was posted today (https://www.tomshardware.com/news/why-gpu-pricing-will-drop-further,37444.html). There seems to be a lot I need to consider I just don't know what to make of it all.
 


Its tough because if you wait, stuff will always be cheaper, but new stuff will be coming out, its a viscous cycle. Many times you just need to say "today is the day" and buy it. But anyway I'm glad you are thinking about it. Its a FAR better way to go financially and performance.
 
Solution


Not the original answer I was looking for but I appreciate all the help. I'll have to try and monitor prices for now I suppose (is something like that available on this website?) and maybe when the time comes and I'm ready to dive I'll ask for help with a build here :)
 


That PCPartpicker site I made the build on that I linked allows you to monitor prices. Click on that build, you can create an account and save the build and monitor it. You can also modify it however you want.
 


I know next to nothing about brands and what's good or not, only worried about the PSU because I'd like to eventually run a dual monitor setup among other things (and don't know how much power that'd suck up). As for the case, I heard bigger is better is that true? Heard varying reasons like air flow, or space for upgrading in the future (speaking of upgrading mobos are in a different universe of understanding for me, so I'm just gonna assume the one provided will be good for a while). Will I need to check it regularly or will I be notified/emailed on price changes? PCpartpicker uses components chosen from specific models (some seem to have very small changes to the name that seem insignificant) as well as retailers is it not? So if a gpu on amazon gets cheaper than the same one I have selected from NewEgg would I still be notified?
 
Everything is relative in terms of building a system. The PSU doesn't matter as far as monitors go seeing that they are powered by their own source. As for the case, it's going to be largely dependent on what you're putting into it now or in the future, where it's being placed, and how much space you have to place it. There's no shortage of choices as far as materials or type of case to buy, either: steel vs aluminum, tempered glass side panel vs plexi vs none, "silent" dampening vs none, airflow vs water cooling focused, etc.

You have to decide what YOU want to do first and make sure that the case you buy suits your needs be it now or down the road.