E8400 4,320 9x480@3.33D 1,600Mhz 6,6,6,12
Took quiet a bit of tweaking to get there.
Click to Enlarge
This compares to the
E8200 3,600 7.5x480@1600Mhz 6,6,6,12
I'd seen it said that
Quote:
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The Write test is heavily dependent on the CPU's frequency
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Comparison to the same
FSB & memory timings using the E8200 & 7.5 Multi doesn't show much change in write sopeed at all.
The E8400 was run with a tRFC of 55 rather than 50 in the original 7.5x shot.
So I re-ran to correct for that :-
Click to Enlarge

Both read & write fell slightly on the rerun.
With the same
FSB &
ram Timings a 20% increase in
CPU speed (via multi) Has a proportional impact on Wprime, around 80% efffect on super Pi (16% v20%) but little impact on Everest read, Write & Copy. The Higher Write Speeds are therefore due to higher
FSB.
Bios Settings
Note: Not Stable beyond benches.
Code:
GIGABYTE GA X48T DQ6 Clock Settings
MB Intelligent Tweaker (MIT)
Robust Graphics Booster...........: Turbo
CPU Clock Ratio...................: 9.0
CPU Frequency.....................: Manual
CPU Host Clock Control............: 4,320Mhz
CPU Host Frequency(Mhz)...........: 480mhz
PCI Express Frequency (Mhz).......: 104Mhz
C.I.A.2...........................: Disabled
Performance Enhance...............: Turbo
System Memory Multiplier (SPD)....: 3.33D
Memory Frequency(Mhz).............: 1,600Mhz
DRAM Timing Selectable ...........: Manual
Standard Timing Control
CAS Latency Time (tCL)............: 6
DRAM RAS# to CAS# (tRCD).........: 6
DRAM RAS# Precharge (tRP).........: 6
Precharge Delay (tRAS)............: 12
Advanced Timing Control
ACT to ACT Delay(tRRD)............: 4
Rank Write to READ Delay (tWTR)...: 4
Write To Precharge Delay (tWR)....: 10
Refresh to ACT Delay (tRFC).......: 50
Read To Precharge Delay (tRTP)....: 4
Static tREAD Value (tRD)..........:7
Static tREAD Phase Adj............: Auto
Command Rate (CMD)................: 1N
Clock Driving and Skew Control
CPU/PCIEX Clock Driving Control...: 800mV
CPU Clock Skew Control............: 50* (*BSOD in Xp on entry without)
(G)MCH Clock Skew Control.........: 50l*
System Voltage Control () = Base Voltages
DDR3 OverVoltage Control...(1.50v): +0.35v
PCI-E OverVoltage Control.,(1.50v): +0.10v
FSB OverVoltage Control....(1.10v): +0.15v
(G)MCH OverVoltage Control,(1.45v): +0.375v
CPU GTLREF1 Voltage*.......(67%)..: Auto
CPU GTLREF2 Voltage*.......(61%)..: Normal
Loadline Calibration..............: Auto
CPU Voltage Control...............: 1.3875v (7.5x480 on E8200= 1.3125v)
Normal CPU Vcore..................: 1.1175
Note: * Hidden Features Press [CTRL] + [F1] from main Menu to Access
Advanced Bios Features
CPU Multi-Threading...............: Disabled
Limit CPUID Max to 3..............: Disabled
No-Execute Memory Protect.........: Disabled
CPU Enhanced Halt(CIE)............: Disabled
CPU Thermal Monitor 2.............: Enabled
CPU EIST Function.................: Disabled
Virtuaalization Technology........: Disabled