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Whats best, 8G @ 800mhz or 4G @ 1066mhz?

May 13, 2006
1,550 (0.37/day)
City 17, California, U.S.A.
Processor AMD FX 8300 @ stock.//AMD 5350 AM1 APU.
Motherboard Biostar TA970.//ASUS AM1M-A.
Cooling AMD vanilla Wraith.//APU oem.//80mm Arctic Cooling fans both cases.
Memory 16G G.Skill TridentX @ 1866mhz.//8G low/low Crucial 1600mhz.
Video Card(s) Sapphire 8G RX 580 Pulse @ stock.//APU.
Storage Seagate 1T SSHD.//WD 500g Black.
Display(s) Dell S2309W 23" 1080p, shared.
Case Blue Chenming 301KB. (Vintage beauty).//Antec NSK 1300.
Audio Device(s) X-Fi Fatal1ty Xtreme Gamer.//Onboard Realtek.//Shared Logitech 2.1's.
Power Supply PC Power & Cooling Silencer 610.//Antec NSK 1380 psu.
Mouse Logitech MX518, shared.
Keyboard Logitech K310, shared.
Software Windows 10 Pro x64.//Windows 10 Home x64, XP Pro x86 dual boot.
Benchmark Scores FX rig is the gamer.//AM1 rig is the daily driver.
I have 2 kits of this: http://www.newegg.com/Product/Product.aspx?Item=N82E16820104098 I had 1 kit when I had the AM2 5000+ Black and so only ran the ram at 800mhz. I bought a 2nd kit when I bought my Kuma but the 1066 speed is not happening. I have messed with the bios up and down and can get it to run 1066 for 1 whole pass of memtest, but it errors out the 2nd time around every time. I read I may be able to get stable at 1066 with only 2 sticks of ram. Can any other AM2+ owners chime in here. Will I be wasting my time trying to get 1066? If I can get 1066Mhz will 4Gbs of it be better then 8Gbs @ 800Mhz? 64bit Vista, just surf and game, no video editing etc, not even a printer, lol.
Nov 22, 2008
3,779 (1.14/day)
Latin America, Uruguay
System Name The Lizard v2.4
Processor Intel Celeron G1840 (for the time being
Motherboard Gigabyte GA-H81-S2PH
Cooling Intel Stock Fan
Memory 16GB Kingston HyperX 1600
Video Card(s) MSI Gaming GTX 750Ti (For the time being)
Storage 500GB Samsung F1, 160GB Maxtor "Older than god"
Display(s) AOC 28' LCD
Case Coolermaster N200
Audio Device(s) Onboard
Power Supply Antec VP500P
Software Windows 7 Ultimate x64
Benchmark Scores No crashes in the last 24 minutes.
is because the am2+ memory controller only supports 2 sticks at 1066. with 4 sticks they will work at 800 mhz

imo is better 4gb at 1066 as 4gb is plenty for this time and speed is always better than amount (ok not always but in this case yes)


where the hell are my stars
Jul 23, 2006
26,551 (6.38/day)
System Name Team Blue
Processor 5960X@4.8 1.42v
Motherboard Asus X99M-WS
Cooling EK Supremecy EVO, MCR220-Stack+MCR220+MCR320, D5-PWM+EK X-RES 140
Memory 4x8GB G.Skill Trident Z 3200 CL16
Video Card(s) (2) EVGA SC BLACK 1080Ti's+ EVGA reference 1080Ti soon to be under water
Storage Samsung SM951 512GB, Samsung PM961 512GB
Display(s) Dell UP2414Q 3840X2160@60hz
Case Caselabs Mercury S5
Audio Device(s) Fischer HA-02->Fischer FA-002W High edition/FA-003/Jubilate/FA-011 depending on my mood
Power Supply Seasonic Prime 1200w
Mouse Thermaltake Theron
Keyboard Thermaltake Poseidon ZX
Software W10P
Benchmark Scores Zoom zoom mofo
you can force most to run 1066 either by upping the bus or using the divider