• Welcome to TechPowerUp Forums, Guest! Please check out our forum guidelines for info related to our community.

4 x 8 GB or 2 x 16 GB - which is better?

Joined
Jan 31, 2005
Messages
1,917 (0.30/day)
System Name Commercial towing vehicle "Nostromo"
Processor 5800X
Motherboard X570 Unify
Cooling EK-AIO 360
Memory 32 GB
Video Card(s) 2070 Super
Power Supply AX860
Software Windows 11 - OS Build 22621.160
Hi

In my new RyZEN machinery i want to upgrade the memory - but
is there any differences/limitation between using 4 x 8 GB vs. 2 x 16 GB?

My intention is to use: CORSAIR CMD16GX4M2B3200C16 ver4.31 in either 4 x 8 or 2 x 16
 
Last edited:
Joined
May 8, 2016
Messages
1,353 (0.60/day)
System Name BOX
Processor Core i7 6950X @ 4,25GHz (1,28V)
Motherboard X99 SOC Champion (BIOS F23c + bifurcation mod)
Cooling Thermalright Venomous-X + 2x Delta 38mm PWM (Push-Pull)
Memory Patriot Viper Steel 4000MHz CL16 4x8GB (@3240MHz CL12.12.12.24 CR2T @ 1,48V)
Video Card(s) Titan Xp Star Wars "Empire" edition
Storage Samsung SM961 256GB NVMe, 1x WD10EZEX (1TB), 2x HGST HUS726060ALE610 (6TB)
Display(s) LG 27GP950-B
Case Fractal Design Meshify 2 XL
Audio Device(s) Motu M4 (audio interface) + ATH-A900Z + Behringer C-1
Power Supply Seasonic X-760 (760W)
Mouse Logitech RX-250
Keyboard HP KB-9970
Software Windows 10 Pro x64
Benchmark Scores https://www.passmark.com/baselines/V10/display.php?id=157143230295
AMD's recommendation :

Less DIMMs = better. Less Ranks = higher frequency.
^Regardless of BIOS updates.
 

hat

Enthusiast
Joined
Nov 20, 2006
Messages
21,521 (3.77/day)
Location
Ohio
System Name Starlifter :: Dragonfly
Processor i7 2600k 4.4GHz :: i5 10400
Motherboard ASUS P8P67 Pro :: ASUS Prime H570-Plus
Cooling Cryorig M9 :: Stock
Memory 4x4GB DDR3 2133 :: 2x8GB DDR4 2400
Video Card(s) 2x PNY GTX1070 :: GT720
Storage Plextor M5s 128GB, 2x1TB Seagate RAID 0 :: Mushkin Enhanced 60GB SSD, 3x4TB Seagate HDD RAID5
Display(s) Acer P216HL HDMI :: None
Case Antec SOHO 1030B :: Old White Full Tower
Audio Device(s) Creative X-Fi Titanium Fatal1ty Pro - Bose Companion 2 Series III :: None
Power Supply FSP Hydro GE 550w :: EVGA Supernova 550
Software Windows 10 Pro - Plex Server on Dragonfly
Benchmark Scores >9000
2 sticks will be better than 4.
 

bug

Joined
May 22, 2015
Messages
10,389 (4.00/day)
Processor Intel i5-12600k
Motherboard Asus H670 TUF
Cooling Arctic Freezer 34
Memory 2x16GB DDR4 3600 G.Skill Ripjaws V
Video Card(s) EVGA GTX 1060 SC
Storage 500GB Samsung 970 EVO, 500GB Samsung 850 EVO, 1TB Crucial MX300 and 2TB Crucial MX500
Display(s) Dell U3219Q + HP ZR24w
Case Raijintek Thetis
Audio Device(s) Audioquest Dragonfly Red :D
Power Supply Seasonic 620W M12
Mouse Logitech G502 Proteus Core
Keyboard G.Skill KM780R
Software Arch Linux + Win10
Look at latencies, if they're much more lax on the 16GB sticks, you may be better served by 4x8. Though going for fewer sticks would be my first choice as well.
 
Joined
Jan 8, 2017
Messages
7,190 (3.60/day)
System Name Good enough
Processor AMD Ryzen R7 1700X - 4.0 Ghz / 1.350V
Motherboard ASRock B450M Pro4
Cooling Deepcool Gammaxx L240 V2
Memory 16GB - Corsair Vengeance LPX - 3333 Mhz CL16
Video Card(s) OEM Dell GTX 1080 with Kraken G12 + Water 3.0 Performer C
Storage 1x Samsung 850 EVO 250GB , 1x Samsung 860 EVO 500GB
Display(s) 4K Samsung TV
Case Deepcool Matrexx 70
Power Supply GPS-750C
Since Ryzen supports only dual channel , there is no reason to go for 4 sticks. Go for 2x16 this will also allow you to increase the amount of RAM easier should you ever need to.
 
Last edited:
Joined
Dec 31, 2009
Messages
19,343 (4.24/day)
Benchmark Scores Faster than yours... I'd bet on it. :)
Since Ryzen supports only dual channel , there is no reason to go for 4 sticks. Go for 2x16 this will also allow you to increase the amount RAM easier should you ever need to.
Capacity.

Though im wondering if the OP needs 32GB... i cant break 13gb with like 30 chrome tabs and playing games...
 
Joined
Jan 8, 2017
Messages
7,190 (3.60/day)
System Name Good enough
Processor AMD Ryzen R7 1700X - 4.0 Ghz / 1.350V
Motherboard ASRock B450M Pro4
Cooling Deepcool Gammaxx L240 V2
Memory 16GB - Corsair Vengeance LPX - 3333 Mhz CL16
Video Card(s) OEM Dell GTX 1080 with Kraken G12 + Water 3.0 Performer C
Storage 1x Samsung 850 EVO 250GB , 1x Samsung 860 EVO 500GB
Display(s) 4K Samsung TV
Case Deepcool Matrexx 70
Power Supply GPS-750C
Who knows , I was just pointing that out.
 
Joined
Jun 27, 2015
Messages
774 (0.30/day)
System Name Fat NCASE
Processor Ryzen R9 3900X
Motherboard ASUS TUF GAMING B550M ZAKU (WIFI) Edition
Cooling Scythe Fuma with 3 SCYTHE Wondersnail 2400RPM + Arctic MX2
Memory Corsair Vengeance 128GB @3200Mhz Cl16 (32GB X 4)
Video Card(s) Palit RTX 3060 StormX 12GB
Storage Sabrent Rocket 2TB PCIE 3x4 SSD + WD HC550 18TB
Display(s) LG 27UL500 4K monitor
Case Jonsbo W2 black
Audio Device(s) Onboard realtek 1200 & Soundblaster G3 usb
Power Supply ASUS ROG STRIX 850W Gundam Edition
Mouse Elecom wireless mouse :)
Keyboard RK100 Royal Kludge
Software Windows 10 HOME
Benchmark Scores Don't know any benchmark. It runs good enough for me.
2x16GB. There is less point of failure. Less stress on the Cpu Imc. Though for it being dense might be hard on the imc. It would more annoying diagnosing faulty memory stick if it is 4 pieces.

I am using 2x16GB. It works rather close to the actual ram speed.
 
Top