Comparision. The affect of Cas latency and frequency on the performance of Rams

mclaren85 · Mar 25, 2023

Below you can see the comparision of two types of ram modules; one of them specified as 1600 MHZ with 11ns cas latency, the other one is 1333MHZ with 9ns cas latency. According to my test results, frequency is more important than the Cas latency, notwithstanding the performance difference merely impacting the daily process. The CPU tests were also in favour of 1600 MHZ version of ram but the difference was trivial.
As you can see the, 1600 MHZ version tests were on the left side of the panel.
Hope this information helps those who are delving into RAM specs but are struggling to decide which one to choose.
*** Many thanks to @S456 for kindly correcting me about CAS. please see : https://www.techpowerup.com/forums/...n-the-performance-of-rams.306436/post-4979032

*The two tests were carried out with the same computer (Sony Vaio sve15129cvb), with the same software. (Aida ver 6.75.6100)
**Ram modules were Kingston so-dimm DDR3

P4-630 · Mar 25, 2023

Why not test with your desktop.

ThrashZone · Mar 25, 2023

Hi,
Yikes ddr3 ?
Not sure how relevant this info is unless you continue on to ddr4 and then ddr5 then everyone might get the complete picture.

mclaren85 · Mar 25, 2023

P4-630 said:
Why not test with your desktop.

At my desktop, only one type of stick I have: ddr4 3600mhz with 18ns cas.

Calenhad · Mar 25, 2023

mclaren85 said:
At my desktop, only one type of stick I have: ddr4 3600mhz with 18ns cas.

Your desktop can be configured with different settings in the bios. Your 3600MT/s 18ns ram can be run at slower settings for comparison tests. Heck, you can run them with and without XMP enabled for a JEDEC vs XMP settings comparison for starters.

That being said, this information is readily available on the internet. It is one search away for all of us. This horse has been properly dead for many years.

Icon Charlie · Mar 25, 2023

Calenhad said:
That being said, this information is readily available on the internet. It is one search away for all of us. This horse has been properly dead for many years.

There are many parts in this world that still uses old tech.

Not all of the world is on bleeding edge tech. There are plenty regions of this world STILL USING DDR3 and older tech/OS's
I mean even in the US there is STILL DIAL UP.

Yea you can get the info out there on the internet however the poster collected the information neatly and placed here in one place. He of course did not have to do that and so he wanted to share.

This of course is rather nice to have for a guy like myself that uses 20+ year old tech playing old school PC games instead of using my current "Bleeding Edge" tech for that purpose.

Who states what is obsolete or not depends on what you can get in whatever part of the world you live in. But I can tell you right now that in many parts of the world they are using...

Whatever works.

lemonadesoda · Mar 25, 2023

@mclaren85 , thanks for posting this up. Interesting information. Can you tell me if the CL-RCD-RP-RAS is the JEDEC/SPD profile, or what the laptop is actually running the memory at? Can you double check using the CPU-Z, and also the AIDA64 page below.

TheoneandonlyMrK · Mar 25, 2023

Icon Charlie said:
There are many parts in this world that still uses old tech.

Not all of the world is on bleeding edge tech. There are plenty regions of this world STILL USING DDR3 and older tech/OS's
I mean even in the US there is STILL DIAL UP.

Yea you can get the info out there on the internet however the poster collected the information neatly and placed here in one place. He of course did not have to do that and so he wanted to share.

This of course is rather nice to have for a guy like myself that uses 20+ year old tech playing old school PC games instead of using my current "Bleeding Edge" tech for that purpose.

Who states what is obsolete or not depends on what you can get in whatever part of the world you live in. But I can tell you right now that in many parts of the world they are using...

Whatever works.

None of that or anything else changed physics in the las 10 years though so as was said this is known, there's no need.

I'll put a fiver on it ddr3 cas v speed comparisons are on TPU done by a Tpu bench tech with many kit's.

So yes old stuff lives on but no there's no new good info here

mclaren85 · Mar 25, 2023

lemonadesoda said:
@mclaren85 , thanks for posting this up. Interesting information. Can you tell me if the CL-RCD-RP-RAS is the JEDEC/SPD profile, or what the laptop is actually running the memory at? Can you double check using the CPU-Z, and also the AIDA64 page below.

View attachment 289188 View attachment 289190

Here you are:

S456 · Mar 25, 2023

The CL is not measured in nanoseconds, they are clock cycles.
1600 CL11 = 13.75ns
1333 CL9 = ~13.5ns

Edit:
11*2000/1600 = 13.75ns
9*2000/1333 = 13.50ns

lemonadesoda · Mar 25, 2023

@mclaren85 , The difference in your tRTR and tWTR (compared to mine) is extraordinary. I think I'd better run AIDA64 on my laptop to see how "bad" my memory speeds are, despite being a nice laptop.

OK, well given that result, I have nothing to worry about (compared to your OP tables).

freeagent · Mar 25, 2023

I played with this a little bit when I first got my Royals. In the end I settled on 3200 12-12-12-28 1T GDM off at 1.45v. But that speed was boring lol.. and then a mixed another set with them. The other set won’t run that tight..

On the Intel side I was running 4 sticks at 2133 8-9-8-24 with 1.725, or 2200 with loose 9-10-10-29 I think with same voltage. My 3770K didn’t seem to like high mem speeds.

I do have a 3x2 set of SuperTalent Chrome 2000C8 that are happy at 1600 6-6-6-20 1.65 and 1800 7-7-7-21 1.65v.. good ram.

mclaren85 · Mar 25, 2023

lemonadesoda said:
@mclaren85 , The difference in your tRTR and tWTR is extraordinary. I think I'd better run AIDA64 on my laptop to see how "bad" it is, despite being a nice laptop.

View attachment 289197
OK, well given that result, I have nothing to worry about (compared to your OP tables).

Here is my benchmark result for my Sony Vaio

And my other laptop, Hp Pavilion G6:

And the custom built MSI desktop:

delshay · Mar 26, 2023

I'm more interested how the OP got DDR3 "SODIMMS" that fast. ...I own real genuine 2133 DDR3L SODIMM from Corsair, Kingston & G.Skill (8 & 16GB Kit) & I don't think it can overclock that high.
These memory stick are now starting to get very rare now including the very rare 32GB kit from G.Skill which I have here..

System Name	MSI-MEG
Processor	AMD Ryzen 9 3900X
Motherboard	MSI MEG X570S ACE MAX
Cooling	AMD Wraith Prism + Thermal Grizzly
Memory	32 GB
Video Card(s)	MSI Suprim X RTX 3080
Storage	500 GB MSI Spatium nvme + 500 GB WD nvme + 2 TB Seagate HDD + 2 TB Seagate HDD
Display(s)	27" LG 144HZ 2K ULTRAGEAR
Case	MSI MPG Velox Airflow 100P
Audio Device(s)	Altec Lansing
Power Supply	Seasonic 750W 80+ Gold
Mouse	HP OMEN REACTOR
Keyboard	Corsair K68
Software	Windows10 LTSC 64 bit

System Name	AlderLake / Laptop
Processor	Intel i7 12700K P-Cores @ 5Ghz / Intel i3 7100U
Motherboard	Gigabyte Z690 Aorus Master / HP 83A3 (U3E1)
Cooling	Noctua NH-U12A 2 fans + Thermal Grizzly Kryonaut Extreme + 5 case fans / Fan
Memory	32GB DDR5 Corsair Dominator Platinum RGB 6000MHz CL36 / 8GB DDR4 HyperX CL13
Video Card(s)	MSI RTX 2070 Super Gaming X Trio / Intel HD620
Storage	Samsung 980 Pro 1TB + 970 Evo 500GB + 850 Pro 512GB + 860 Evo 1TB x2 / Samsung 256GB M.2 SSD
Display(s)	23.8" Dell S2417DG 165Hz G-Sync 1440p / 14" 1080p IPS Glossy
Case	Be quiet! Silent Base 600 - Window / HP Pavilion
Audio Device(s)	Panasonic SA-PMX94 / Realtek onboard + B&O speaker system / Harman Kardon Go + Play / Logitech G533
Power Supply	Seasonic Focus Plus Gold 750W / Powerbrick
Mouse	Logitech MX Anywhere 2 Laser wireless / Logitech M330 wireless
Keyboard	RAPOO E9270P Black 5GHz wireless / HP backlit
Software	Windows 11 / Windows 10
Benchmark Scores	Cinebench R23 (Single Core) 1936 @ stock Cinebench R23 (Multi Core) 23006 @ stock

System Name	Ghetto Rigs z490\|x99\|Acer 17 Nitro 7840hs/ 5600c40-2x16/ 4060/ 1tb acer stock m.2/ 4tb sn850x
Processor	10900k w/Optimus Foundation \| 5930k w/Black Noctua D15
Motherboard	z490 Maximus XII Apex \| x99 Sabertooth
Cooling	oCool D5 res-combo/280 GTX/ Optimus Foundation/ gpu water block \| Blk D15
Memory	Trident-Z Royal 4000c16 2x16gb \| Trident-Z 3200c14 4x8gb
Video Card(s)	Titan Xp-water \| evga 980ti gaming-w/ air
Storage	970evo+500gb & sn850x 4tb \| 860 pro 256gb \| Acer m.2 1tb/ sn850x 4tb\| Many2.5" sata's ssd 3.5hdd's
Display(s)	1-AOC G2460PG 24"G-Sync 144Hz/ 2nd 1-ASUS VG248QE 24"/ 3rd LG 43" series
Case	D450 \| Cherry Entertainment center on Test bench
Audio Device(s)	Built in Realtek x2 with 2-Insignia 2.0 sound bars & 1-LG sound bar
Power Supply	EVGA 1000P2 with APC AX1500 \| 850P2 with CyberPower-GX1325U
Mouse	Redragon 901 Perdition x3
Keyboard	G710+x3
Software	Win-7 pro x3 and win-10 & 11pro x3
Benchmark Scores	Are in the benchmark section

System Name	MSI-MEG
Processor	AMD Ryzen 9 3900X
Motherboard	MSI MEG X570S ACE MAX
Cooling	AMD Wraith Prism + Thermal Grizzly
Memory	32 GB
Video Card(s)	MSI Suprim X RTX 3080
Storage	500 GB MSI Spatium nvme + 500 GB WD nvme + 2 TB Seagate HDD + 2 TB Seagate HDD
Display(s)	27" LG 144HZ 2K ULTRAGEAR
Case	MSI MPG Velox Airflow 100P
Audio Device(s)	Altec Lansing
Power Supply	Seasonic 750W 80+ Gold
Mouse	HP OMEN REACTOR
Keyboard	Corsair K68
Software	Windows10 LTSC 64 bit

Processor	AMD Ryzen 7 5800X3D
Motherboard	Asus Crosshair VIII Dark Hero
Cooling	Custom Watercooling
Memory	G.Skill Trident Z Royal 2x16GB
Video Card(s)	MSi RTX 3080ti Suprim X
Storage	2TB Corsair MP600 PRO Hydro X
Display(s)	Samsung G7 27" x2
Audio Device(s)	Sound Blaster ZxR
Power Supply	Be Quiet! Dark Power Pro 12 1500W
Mouse	Logitech G903
Keyboard	Steelseries Apex Pro

System Name	ICE-QUAD // ICE-CRUNCH
Processor	Q6600 // 2x Xeon 5472
Memory	2GB DDR // 8GB FB-DIMM
Video Card(s)	HD3850-AGP // FireGL 3400
Display(s)	2 x Samsung 204Ts = 3200x1200
Audio Device(s)	Audigy 2
Software	Windows Server 2003 R2 as a Workstation now migrated to W10 with regrets.

System Name	RyzenGtEvo/ Asus strix scar II
Processor	Amd R5 5900X/ Intel 8750H
Motherboard	Crosshair hero8 impact/Asus
Cooling	360EK extreme rad+ 360$EK slim all push, cpu ek suprim Gpu full cover all EK
Memory	Corsair Vengeance Rgb pro 3600cas14 16Gb in four sticks./16Gb/16GB
Video Card(s)	Powercolour RX7900XT Reference/Rtx 2060
Storage	Silicon power 2TB nvme/8Tb external/1Tb samsung Evo nvme 2Tb sata ssd/1Tb nvme
Display(s)	Samsung UAE28"850R 4k freesync.dell shiter
Case	Lianli 011 dynamic/strix scar2
Audio Device(s)	Xfi creative 7.1 on board ,Yamaha dts av setup, corsair void pro headset
Power Supply	corsair 1200Hxi/Asus stock
Mouse	Roccat Kova/ Logitech G wireless
Keyboard	Roccat Aimo 120
VR HMD	Oculus rift
Software	Win 10 Pro
Benchmark Scores	8726 vega 3dmark timespy/ laptop Timespy 6506

Processor	AMD Ryzen 5
Memory	16GB DDR4
Storage	Crucial P5 Plus (M.2 NVME PCIe 4.0)
Display(s)	27" QHD 144Hz
Power Supply	Seasonic Focus GX

Processor	AMD R9 5900X
Motherboard	Asus Crosshair VIII Dark Hero
Cooling	Thermalright Aqua Elite 360 V3 1x TL-B12, 2x TL-C12 Pro, 2x TL K12
Memory	2x8 G.Skill Trident Z Royal 3200C14, 2x8GB G.Skill Trident Z Black and White 3200 C14
Video Card(s)	Zotac 4070 Ti Trinity OC
Storage	WD SN850 1TB, SN850X 2TB, Asus Hyper M.2, 2x SN770 1TB
Display(s)	LG 50UP7100
Case	Fractal Torrent Compact RGB
Audio Device(s)	JBL 2.1 Deep Bass
Power Supply	EVGA SuperNova 750w G+, Monster HDP1800
Mouse	Logitech G502 Hero
Keyboard	Logitech G213
VR HMD	Oculus 3
Software	Yes
Benchmark Scores	Yes

Comparision. The affect of Cas latency and frequency on the performance of Rams

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