2T vs 1T

SH64 · 07-31-05, 02:39 PM

Ok i've read in other threads that switching to 2T dosent affect performance much however today i found it actually otherwise.
on same timings (2-3-2-5) i tested 3DMark05 - Aquamark3 - Doom3 - Painkiller:BooH
3DMark05 : 1T =~ 11400 , 2T =~ 11100
Aqua3 : 1T =~ 86.xx fps , 2T =~ 83.xxx fps
Doom3 : 1T=2T= 82.3
Painkiller : BooH (Linengrad level) : 1T = 45fps , 2T= 36fps!!

the first 3 are ok i guess , but in Painkiller i noticed an obvious framerate drop as you can see .. what gives

**jAkUp** · 07-31-05, 03:44 PM

Well, for some people the difference will not be huge in 3dmark or other games, because they are mainly GPU limited.

With 2 7800GTX's, just like me, you are more CPU/Mem limited, so the difference is bigger.

john19055 · 07-31-05, 11:24 PM

I have always had a big performance hit if I use 2T instead of 1T.

$n][pErMan · 07-31-05, 11:58 PM

I have noticed a trial difference. Maybe 5~10 FPS in games (at most) and 100 points tops in a 3dmark score. But hey... if it runs at 1T ... why not?

**zoomy942** · 08-01-05, 12:10 AM

it all depends on what the ram is trying to do. the command rate is just when your memory allows access (roughly speaking). think of it like this exaplme with a basketball...

2T - allows your ram to be messed with oinly when the ball is going to the ground...

1T allows you ram to be changed when the ball is going down, and now your ram can change on the way up too.

so, its not a 50% increase or anything, but just a few nanoseconds difference of when you can access the RAM. different apps use ram differntly

Dr.Nick · 08-02-05, 12:17 AM

In all honesty this setting makes the biggest difference in mem performance than all other settings combined. Run it at 1T if possible

Dudes__Geof_ · 08-02-05, 12:24 AM

how would you find out if your ram is 1T or 2T ?

I don't really wonna try it though, resetting the CMOS is easy, but i dont like doing it

rewt · 08-02-05, 01:28 PM

SiSoftware Sandra under "Mainboard Information" module - Memory Banks. 2T will report 2CMD, and if you're running it @ 1T it will say 1CMD.

SH64 · 08-02-05, 03:05 PM

Hmm i also tested HL2 with 2T .. not a big difference there i only lost a couple of frames.

simonuk · 08-02-05, 05:38 PM

I have used 1T since I purchased my socket 754 system and it makes a difference with my system.

jolle · 08-02-05, 06:37 PM

Quote:

Originally Posted by SH64

Hmm i also tested HL2 with 2T .. not a big difference there i only lost a couple of frames.

If I remember right I got a pretty decent boost in VST..
you werent running High resolution with lots of AA and stuff right?

SH64 · 08-02-05, 06:44 PM

Quote:

Originally Posted by jolle

If I remember right I got a pretty decent boost in VST..
you werent running High resolution with lots of AA and stuff right?

In fact yes i was running @1600x1200,8xAA,16xAF.
from a standstill place in the waterhazard level my fps went from 76(1T) to ~72(2T).

07-31-05, 02:39 PM	#1
SH64 MAXIMUM TECH Join Date: Jul 2003 Location: Indiana Posts: 19,039	2T vs 1T Ok i've read in other threads that switching to 2T dosent affect performance much however today i found it actually otherwise. on same timings (2-3-2-5) i tested 3DMark05 - Aquamark3 - Doom3 - Painkiller:BooH 3DMark05 : 1T =~ 11400 , 2T =~ 11100 Aqua3 : 1T =~ 86.xx fps , 2T =~ 83.xxx fps Doom3 : 1T=2T= 82.3 Painkiller : BooH (Linengrad level) : 1T = 45fps , 2T= 36fps!! the first 3 are ok i guess , but in Painkiller i noticed an obvious framerate drop as you can see .. what gives __________________ - "My name is RAM and my tank is full" http://warhawk64nv.mybrute.com/ <-- pupils go thaarrr! Or, http://silenthunter64.mybrute.com

07-31-05, 03:44 PM	#2
jAkUp eat. sleep. overclock. Join Date: Dec 2002 Location: Chino, California Posts: 21,766	Re: 2T vs 1T Well, for some people the difference will not be huge in 3dmark or other games, because they are mainly GPU limited. With 2 7800GTX's, just like me, you are more CPU/Mem limited, so the difference is bigger. __________________ 965xe \|\| evga x58 classified \|\| 2x evga gtx 295 \|\| 6gb g.skill \|\| win7 x64

07-31-05, 11:24 PM	#3
john19055 Registered User Join Date: Jul 2002 Posts: 3,535	Re: 2T vs 1T I have always had a big performance hit if I use 2T instead of 1T. __________________ i7 920+Thermalright 120 U.E.+Gigabyte EX58-UD5 OCZ 6gig of DDR3 1600+S.B. X-Fi Titanium+BFG GTX 280OCX+2-W.D. Black 640g Raid-0+2-Seagate 500g 2-LG-22x SATA DVD's+Logitech G-15+G-9+G25Wheel+e5300 Speakers+Cooler Master HAF 932+UPC-1100watt+28" I-INC Monitor+50"LG 50PS60 Plasma HDTV +LG BD390 Blu-ray+ONKYO TX-SR707 Receiver Polk Audio Speakers Monitor 70's Front+CS2 Center+60's+30's Sur-round+PSW-505 Sub-Woofer

07-31-05, 11:58 PM	#4
$n][pErMan GTX 285 SSC Goodness! Join Date: Nov 2004 Location: Ohio Posts: 3,982	Re: 2T vs 1T I have noticed a trial difference. Maybe 5~10 FPS in games (at most) and 100 points tops in a 3dmark score. But hey... if it runs at 1T ... why not? __________________ Intel® Core 2 Quad Q6600 G0 @ 3.51GHz (390 x 9 / 1.39v) \| ASUS P5B Deluxe/WiFi-AP LGA 775 Intel P965 (1236 BIOS) \| OCZ GOLD 4GB (2GB x 2) DDR2 PC2-8500 Dual Channel (4-4-4-12 780Mhz/1.95V 1:1 Ratio) \| EVGA GeForce GTX 285 SSC Edition 1GB 512-bit GDDR3 (Currently @ 720MHz Core / 2750MHz Memory) \| Sound Blaster X-Fi Fatal1ty FPS \| Zalman CNPS9700 LED Ultra Quiet CPU Cooler \| 5 Western Digital 500GB SATA II 7200RPM w/32MB Buffer \| Acer X241W 24in Widescreen LCD 1920 x 1200 32bit \| Samsung DVD-RW-DL 18x Burner w/ lightscribe\| SILVERSTONE OP650 ATX12V / EPS12V 650W Power Supply \| AOpen 5.1 Surround sound system \| Windows Vista Business 64-Bit 3dMarkVantage: P15883 3dMark06: 17606 SuperPi 1M: 14s 100% Orthos Stable!

08-01-05, 12:10 AM	#5
zoomy942 My Hero Join Date: Dec 2003 Posts: 9,849	Re: 2T vs 1T it all depends on what the ram is trying to do. the command rate is just when your memory allows access (roughly speaking). think of it like this exaplme with a basketball... 2T - allows your ram to be messed with oinly when the ball is going to the ground... 1T allows you ram to be changed when the ball is going down, and now your ram can change on the way up too. so, its not a 50% increase or anything, but just a few nanoseconds difference of when you can access the RAM. different apps use ram differntly

08-02-05, 12:17 AM	#6
Dr.Nick Registered User Join Date: Nov 2004 Posts: 922	Re: 2T vs 1T In all honesty this setting makes the biggest difference in mem performance than all other settings combined. Run it at 1T if possible __________________ i7 920@4ghz\|asus p6t7ws-sc\|6gb ocz\|hd5870\|enermax 1kw\|7 x64

08-02-05, 12:24 AM	#7
Dudes__Geof_ AMD64's Rock Join Date: Aug 2004 Posts: 285	Re: 2T vs 1T how would you find out if your ram is 1T or 2T ? I don't really wonna try it though, resetting the CMOS is easy, but i dont like doing it __________________ System Specs: AMD Athlon 64 Socket 939 3000+ @ 2.25Ghz on Asus A8V-E Deluxe - 2x 512mb Samsung DDR400 Dual Channel - PCI-E EVGA 6800GS - 250GB 16MB Cache SATA Maxtor - Antec Sonata II w/ 450W SmartPower 2.0 - BenQ FP92W 19" Widescreen - Microsoft Digital Media Pro Keyboard - Microsoft Wireless Intellimouse Explorer 2.0

08-02-05, 01:28 PM	#8
rewt mmm, Beer.. :drooling: Join Date: May 2004 Location: USA Posts: 3,677	Re: 2T vs 1T SiSoftware Sandra under "Mainboard Information" module - Memory Banks. 2T will report 2CMD, and if you're running it @ 1T it will say 1CMD. __________________ My pimp'n rig Athlon64 Venice 3000+ @ 2.6GHz (4100+) · Win XP Pro x86, Vista Ultimate x64 · eVGA K8-NF41 nForce4 SLi · Corsair XMS 1.5GB PC3200 CAS2/1T · eVGA 2x 6600GT SLi · Leadtek Winfast TV2000 XP Deluxe · Western Digital Caviar SE ½TB RAID 0/1 · PowerLink LPK2-30 400W · LiteON LDW-411S OC to 811S 8x DVD±R/RW/ROM · MicroAdvantage 64MB QuickiDrive · Samsung SyncMaster 931B 19" LCD · Microsoft Optical Wheel Mouse USB · Sony PSXtoUSB Analog Gamepads · Memorex MX2700 Multimedia Keyboard · Lexmark 3200 Color Jetprinter · nForce Network Controller 1Gb/s LAN (Cable ~3Mb/s down) · ΩPioneer Dolby Digital 5.1 Surround Sound

08-02-05, 03:05 PM	#9
SH64 MAXIMUM TECH Join Date: Jul 2003 Location: Indiana Posts: 19,039	Re: 2T vs 1T Hmm i also tested HL2 with 2T .. not a big difference there i only lost a couple of frames. __________________ - "My name is RAM and my tank is full" http://warhawk64nv.mybrute.com/ <-- pupils go thaarrr! Or, http://silenthunter64.mybrute.com

08-02-05, 05:38 PM	#10
simonuk Registered User Join Date: May 2004 Location: Seattle, WA Posts: 123	Re: 2T vs 1T I have used 1T since I purchased my socket 754 system and it makes a difference with my system. __________________ http://www.ultimatehardware.net

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