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RAM Bandwidth Efficiency?

post #1 of 7
Thread Starter 
After recently upgrading an old HP computer with a new mobo and ram, I noticed that the RAM performance increase was almost non-existent. Everything on the before and after set-ups are identical except mobo and ram.

The Old :
Intel P4 540 3.2 GHz w/800 FSB
Intel 915GV Chipset
Asus PTGD1-LA mobo
512MB DDR-400/PC3200

The New :
Intel P4 540 3.2 GHz w/800 FSB
Intel G41 Chipset
Gigabyte GA-G41MT-D3V mobo
G.Skill 2x2 GB DDR3-1333/PC10600, 1.5V, 8-8-8-21

I got this mobo because I am on an extremely tight budget and I plan on getting a better CPU to overclock when I can afford it When looking for ram I got DDR3-1333 ram since the mobo supports it, and i read that ddr3-1333 ram running at 800MHz won't damage the ram. Then when i get a better cpu, i can have faster ram

Using Sandra it says my new memory bandwidth is 4.54 GB/s and bandwidth efficiency is 67% which is less than my old DDR-400 RAM!!?!?!?!
-------------->

SiSoftware Sandra

Benchmark Results
Aggregate Memory Performance : 4.57GB/s
Integer B/F iSSE2 Memory Bandwidth : 4.58GB/s
Float B/F iSSE2 Memory Bandwidth : 4.56GB/s
Results Interpretation : Higher scores are better.

Performance vs. Speed
Aggregate Memory Performance : 5.85MB/s/MHz
Integer B/F iSSE2 Memory Bandwidth : 5.87MB/s/MHz
Float B/F iSSE2 Memory Bandwidth : 5.84MB/s/MHz
Results Interpretation : Higher scores are better.

Performance vs. Power
Chipset(s)/Memory Power : 21.10W
Aggregate Memory Performance : 221.85MB/s/W
Integer B/F iSSE2 Memory Bandwidth : 222.37MB/s/W
Float B/F iSSE2 Memory Bandwidth : 221.33MB/s/W
Results Interpretation : Higher scores are better.

Capacity vs. Power
Memory Capacity : 194MB/W
Results Interpretation : Higher scores are better.

Integer B/F iSSE2 Memory Bandwidth
Assignment : 4.49GB/s
Scaling : 4.48GB/s
Addition : 4.66GB/s
Triad : 4.7GB/s
Data Item Size : 16bytes
Buffering Used : Yes
Offset Displacement : Yes
Bandwidth Efficiency : 67.95%

Float B/F iSSE2 Memory Bandwidth
Assignment : 4.48GB/s
Scaling : 4.5GB/s
Addition : 4.69GB/s
Triad : 4.58GB/s
Data Item Size : 16bytes
Buffering Used : Yes
Offset Displacement : Yes
Bandwidth Efficiency : 67.77%

Performance Test Status
Result ID : Intel G41 DRAM Controller; 2x 2GB G.Skill F3-10666CL8-2GBHK DIMM DDR2 DDR3 (800MHz) PC3-10700 (6-6-6-15 3-21-7-5)
Computer : Gigabyte G41MT-D3V (Gigabyte G41MT-D3V)
Platform Compliance : x86
Total Memory : 3.25GB
Memory Used by Test : 256MB
NUMA Support : No
SMP (Multi-Processor) Benchmark : No
Total Test Threads : 1
Multi-Core Test : No
SMT (Multi-Threaded) Benchmark : Yes
Processor Affinity : P0C0T0
System Timer : 3.2GHz
Page Size : 4kB

Features
(W)MMX Technology : Yes
SSE Technology : Yes
SSE2 Technology : Yes
SSE3 Technology : Yes
Supplemental SSE3 Technology : No
SSE4.1 Technology : No
SSE4.2 Technology : No
AVX - Advanced Vector eXtensions : No
FMA - Fused Multiply/Add eXtensions : No
SSE4A Technology : No
FMA4 - 4 Operands Fused Multiply/Add eXtensions : No
HTT - Hyper-Threading Technology : Yes

Chipset
Model : Giga-Byte G41 DRAM Controller
OEM Device Name : Intel G41 DRAM Controller
Revision : A4
Front Side Bus Speed : 4x 200MHz (800MHz)
Width : 64-bit
Maximum Bus Bandwidth : 6.25GB/s

Logical/Chipset Memory Banks
Bank 0 : 1GB DIMM DDR3 6-6-6-15 3-21-7-5 2T
Bank 1 : 1GB DIMM DDR3 6-6-6-15 3-21-7-5 2T
Bank 4 : 1GB DIMM DDR2 6-6-6-15 3-21-7-5 2T
Bank 5 : 1GB DIMM DDR2 6-6-6-15 3-21-7-5 2T
Channels : 2
Memory Bus Speed : 2x 400MHz (800MHz)
Multiplier : 2x
Width : 64-bit
Maximum Memory Bus Bandwidth : 12.5GB/s

Memory Module(s)
Memory Module : G.Skill F3-10666CL8-2GBHK 2GB DIMM DDR3 PC3-10700U DDR3-1334 (9-9-9-24 4-33-10-5)
Memory Module : G.Skill F3-10666CL8-2GBHK 2GB DIMM DDR3 PC3-10700U DDR3-1334 (9-9-9-24 4-33-10-5)

Performance Enhancing Tips
Notice 5008 : To change benchmarks, click Options.
Notice 5004 : Synthetic benchmark. May not tally with 'real-life' performance.
Notice 5006 : Only compare the results with ones obtained using the same version!
Notice 5405 : System bandwidth appears FSB limited. Attempt to increase FSB.
Tip 2 : Double-click tip or press Enter while a tip is selected for more information about the tip.
----------->

Does anyone know how to fix this, or if I got the wrong RAM or something? CPU-Z says the ram is in dual channel mode, symmetric, frequency is 400 MHz, and FSBRAM is 1:2. If I did get the wrong ram, what would be the right kind to get? TY
    
CPUMotherboardGraphicsRAM
Intel P4 540J 3.2GHz, 800 FSB Gigabyte GA-G41MT-D3V Saphire Radeon HD 4650, 512MB 2x2GB G.Skill DDR3-1333 PC10600, 1.5V 
Hard DriveOptical DriveOSPower
WD Caviar Green 1TB Asus24x DVD Burner WinXP x86 Dynex 400W 
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CPUMotherboardGraphicsRAM
Intel P4 540J 3.2GHz, 800 FSB Gigabyte GA-G41MT-D3V Saphire Radeon HD 4650, 512MB 2x2GB G.Skill DDR3-1333 PC10600, 1.5V 
Hard DriveOptical DriveOSPower
WD Caviar Green 1TB Asus24x DVD Burner WinXP x86 Dynex 400W 
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post #2 of 7
With that board, you can run your memory at 1333MHz
You just need to use the proper divider in your bios.

The reason it's running that slow, is because it's 1333MHz memory, and your running it with the 1333MHz timings, & not 800MHz timings.

Here's a link to your boards specs
http://www.gigabyte.com/products/pro...px?pid=3798#sp

Also, you should use Maxmem, or Everest memory benchmarks.

Here's a link to download Maxmem: http://download.cnet.com/MaxMem/3000-18512_4-12123.html

I'm not sure if the free edition of Everest has the benchmarks included?

Edit #2
Have you been into your bios to do any adjusting?
Edited by Inteller - 7/19/11 at 10:24pm
Game Killer
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CPUMotherboardGraphicsRAM
Intel i7 990 extreme @ 4.2GHz ASRock X58 Extreme MSI GTX-580 lightning G.Skill Ripjaws X DDR3-2000 9-9-9-24 
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Game Killer
(17 items)
 
  
CPUMotherboardGraphicsRAM
Intel i7 990 extreme @ 4.2GHz ASRock X58 Extreme MSI GTX-580 lightning G.Skill Ripjaws X DDR3-2000 9-9-9-24 
Hard DriveHard DriveOptical DriveCooling
Intel 510 250Gb SSD WD RE4 250Gb x 4 Raid-0 Plextor DVR 880SA VenomousX 
OSKeyboardPowerCase
W7 Razor Lycosa PC power & cooling 950 CM ATCS-840 
AudioOther
SB Xf-i Xtreme Professional, Z2300 speakers WD 1Tb external SATA II 64Mb cache HD 
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post #3 of 7
Thread Starter 
Okya, just checked bios and everything is set to auto; there are options to change everything including the timings, and under the Memory Multiplier SPD options are 4.00C, 2.40B, 3.20B, 3.00A, and 4.00A. Under DRAM Performance Control there is auto, turbo, and extreme but I don't know what this would change on the motherboard and so I a don't use it.
Could I have gotten a better RAM for the setup? Also I read the maximum theoretical bandwidth is 10.66MB/s for DDR-1333, but what is the avg. speed a system gets with DDR-1333 in dual-channel mode? I'm new to this so thanks for the input
    
CPUMotherboardGraphicsRAM
Intel P4 540J 3.2GHz, 800 FSB Gigabyte GA-G41MT-D3V Saphire Radeon HD 4650, 512MB 2x2GB G.Skill DDR3-1333 PC10600, 1.5V 
Hard DriveOptical DriveOSPower
WD Caviar Green 1TB Asus24x DVD Burner WinXP x86 Dynex 400W 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
Intel P4 540J 3.2GHz, 800 FSB Gigabyte GA-G41MT-D3V Saphire Radeon HD 4650, 512MB 2x2GB G.Skill DDR3-1333 PC10600, 1.5V 
Hard DriveOptical DriveOSPower
WD Caviar Green 1TB Asus24x DVD Burner WinXP x86 Dynex 400W 
  hide details  
Reply
post #4 of 7
Thread Starter 
There was no way to use Maxmem for benchmarking, but Everest showed the following:
Memory Read- P4 540J 3200 MHz Unknown 5712 MB/s
Memory Write- P4 540J 3200 MHz Unknown 2346 MB/s
Memory Latency- P4 540J 3200 MHz Unknown 104.0 ns
    
CPUMotherboardGraphicsRAM
Intel P4 540J 3.2GHz, 800 FSB Gigabyte GA-G41MT-D3V Saphire Radeon HD 4650, 512MB 2x2GB G.Skill DDR3-1333 PC10600, 1.5V 
Hard DriveOptical DriveOSPower
WD Caviar Green 1TB Asus24x DVD Burner WinXP x86 Dynex 400W 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
Intel P4 540J 3.2GHz, 800 FSB Gigabyte GA-G41MT-D3V Saphire Radeon HD 4650, 512MB 2x2GB G.Skill DDR3-1333 PC10600, 1.5V 
Hard DriveOptical DriveOSPower
WD Caviar Green 1TB Asus24x DVD Burner WinXP x86 Dynex 400W 
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post #5 of 7
1. Timings are very loose.. CAS8 for 1333 is much slower than CAS5 1100mhz
2. FSB is low.. which affects bandwidth.

You should set the 'Turbo' or 'Extreme' option in your RAM section to enabled.. this will but latency and boost bandwidth some. As well.. set your Static Read, or Performance Level - manually! This greatly affects latency.. even more so than CAS adjustments [should be in the timing section of your BIOS]!

For 200FSB [800mhz] ..you would be running pretty tight PL# ... I would start with 6-7 and see if you can tighten it up from there.
post #6 of 7
Thanks CL3P20!

I wasn't sure what to tell him on his settings with that Gigabyte board.
Good to see you again!
Game Killer
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CPUMotherboardGraphicsRAM
Intel i7 990 extreme @ 4.2GHz ASRock X58 Extreme MSI GTX-580 lightning G.Skill Ripjaws X DDR3-2000 9-9-9-24 
Hard DriveHard DriveOptical DriveCooling
Intel 510 250Gb SSD WD RE4 250Gb x 4 Raid-0 Plextor DVR 880SA VenomousX 
OSKeyboardPowerCase
W7 Razor Lycosa PC power & cooling 950 CM ATCS-840 
AudioOther
SB Xf-i Xtreme Professional, Z2300 speakers WD 1Tb external SATA II 64Mb cache HD 
  hide details  
Reply
Game Killer
(17 items)
 
  
CPUMotherboardGraphicsRAM
Intel i7 990 extreme @ 4.2GHz ASRock X58 Extreme MSI GTX-580 lightning G.Skill Ripjaws X DDR3-2000 9-9-9-24 
Hard DriveHard DriveOptical DriveCooling
Intel 510 250Gb SSD WD RE4 250Gb x 4 Raid-0 Plextor DVR 880SA VenomousX 
OSKeyboardPowerCase
W7 Razor Lycosa PC power & cooling 950 CM ATCS-840 
AudioOther
SB Xf-i Xtreme Professional, Z2300 speakers WD 1Tb external SATA II 64Mb cache HD 
  hide details  
Reply
post #7 of 7
Thread Starter 
Okay, will try that and see what happens. Thanks, update otw
    
CPUMotherboardGraphicsRAM
Intel P4 540J 3.2GHz, 800 FSB Gigabyte GA-G41MT-D3V Saphire Radeon HD 4650, 512MB 2x2GB G.Skill DDR3-1333 PC10600, 1.5V 
Hard DriveOptical DriveOSPower
WD Caviar Green 1TB Asus24x DVD Burner WinXP x86 Dynex 400W 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
Intel P4 540J 3.2GHz, 800 FSB Gigabyte GA-G41MT-D3V Saphire Radeon HD 4650, 512MB 2x2GB G.Skill DDR3-1333 PC10600, 1.5V 
Hard DriveOptical DriveOSPower
WD Caviar Green 1TB Asus24x DVD Burner WinXP x86 Dynex 400W 
  hide details  
Reply
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