Jump to content

RAM Uncore Frequency

wuckal
By wuckal
in CPUs, Motherboards, and Memory
 Share
Posted

Hi Guys,

 

a friend of mine recently build his first pc and I recognized while checking CPU-Z that his Uncore Frequency is half of the DRAM Frequency.

 

What's the reason for that? Is it bad? If it's bad how can he change it?

 

20201020_190712.thumb.jpg.40306d5455cad8692640c1dac0923451.jpg

Link to comment
Share on other sites
Link to post
Share on other sites
Posted

no, that is how it should be ddr=double data rate

desktop

Spoiler

r5 3600,3450@0.9v (0.875v get) 4.2ghz@1.25v (1.212 get) | custom loop cpu&gpu 1260mm nexxos xt45 | MSI b450i gaming ac | crucial ballistix 2x8 3000c15->3733c15@1.39v(1.376v get) |Zotac 2060 amp | 256GB Samsung 950 pro nvme | 1TB Adata su800 | 4TB HGST drive | Silverstone SX500-LG

HTPC

Spoiler

HTPC i3 7300 | Gigabyte GA-B250M-DS3H | 16GB G Skill | Adata XPG SX8000 128GB M.2 | Many HDDs | Rosewill FBM-01 | Corsair CXM 450W

 

 

Link to comment
Share on other sites
Link to post
Share on other sites
Posted
  • Author

Okay.

 

I was wondering because on my pc DRAM frequency is the same as uncore frequenzy. 

 

 

IMG-20201025-WA0002.jpg

Link to comment
Share on other sites
Link to post
Share on other sites
  • 1 month later...
Posted

I have the exact same question. Bought a Lenovo Legion 5 with 16GB 3200MHz, bought a HyperX 32GB kit also 3200MHz and the uncore frequency is listed as half the original. (see attached).

 

Everything else seems to match, same DRAM frequency and very similar timings (slightly faster tRAS). Just uncore which is listed as half as before. 🤷‍♂️

 

2020-12-12 13_51_33-Settings.png

Link to comment
Share on other sites
Link to post
Share on other sites
Posted

I would like to know as well, only for me the uncore frequency fluctuates and is much higher than my dram frequency. Any explanation for that?

aQ0c7VS.png

Link to comment
Share on other sites
Link to post
Share on other sites
  • 2 weeks later...
  • 1 month later...
  • 4 weeks later...
Posted

if you are using Ryzen 7 Zen3 , uncore freq is FCLK. so for the best performance it should be same as DRAM Frequency

Link to comment
Share on other sites
Link to post
Share on other sites
  • 1 year later...
Posted

image.png.243e662c2b50aef23db4ad491a9fa0ce.png
No issues here. Both match. Not sure what that is about. unless it is refering to infinity fabric?

Be sure to @Pickles von Brine if you want me to see your reply!

Stopping by to praise the all mighty jar Lord pickles... * drinks from a chalice of holy pickle juice and tossed dill over shoulder* ~ @WarDance
3600x | NH-D15 Chromax Black | 32GB 3200MHz | ASUS KO RTX 3070 UnderVolted and UnderClocked | Gigabyte Aorus Elite AX X570S | Seasonic X760w | Phanteks Evolv X | 500GB WD_Black SN750 x2 | Sandisk Skyhawk 3.84TB SSD 

Link to comment
Share on other sites
Link to post
Share on other sites
Posted

For Intel, Uncore is the Ring (Cache) frequency. 

 

 

For AMD, it's the Infinity Fabric (IF). 

1:1 ratio uncore (IF) matches memory frequency

2:1 ratio uncore (IF) is half the memory frequency

 

This screen shot is Intel - Uncore is Cpu cache and you can see the memory controller is 2:1 = Gear 2 mode.

 

image.png.bd6656386c3059d8ea31056d925875d5.png

Link to comment
Share on other sites
Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing CPUs, Motherboards, and Memory

×