Inspiron 1520 (6464) and Intel Turbo Memory

I have a Inspiron 1520 (6464). Full specs:
Quantity Parts # Part Description

30 INSPIRON 1520 CORE 2 DUO T7500 2.20GHZ, 8
30 15.4" WIDESCREEN WXGA (1280X800) TFT DIS
30 MIDNIGHT BLUE COLOUR WITH MICROSATIN FIN
30 EURO SHIP ACCESSORIES - POWER CORD
30 ENGLISH DOCUMENTATION INSPIRON 1520
30 VISTA RESOURCE DVD INSPIRON 1520 - (DIAG
30 MEMORY DUAL-CHANNEL 2048MB (2X1024) 667M
30 160GB (5, 400 RPM) SATA HARD DRIVE
30 FIXED INTERNAL 8X DVD+/- RW DRIVE
30 AC ADAPTER 90W
30 PRIMARY 9-CELL 85WHR LI-ION BATTERY
30 NOT INCLUDED CARRY CASE
30 NVIDIA? GEFORCE GO 8600M GT WITH 256MB D
30 UK MODEM CABLE AND ADAPTER INTERNAL V.92
30 DELL™ WIRELESS 1490 802.11A/B/G MIN
30 EUROPEAN - DELL TRUEMOBILE 355 INTERNAL
30 SOFTWARE DRIVERS INSPIRON 1520
30 EOL - ENGLISH - VISTA HOME PREMIUM
30 ENGLISH MICROSOFT WORKS 9.0 (WORD PROCES
30 ENGLISH - ADOBE READER 8.1
30 DELL SUPPORT CENTER 2.0
30 ENGLISH MCAFEE SECURITY CENTRE 9.0 - 30
30 CFI G06M0Y EDB INSPIRON. TRACKING 15XX S
30 CFI EMEA SERVICE INSPIRON HW (MAIN INTEG
30 CFI EMEA INSPIRON, SLOVENIAN KEYBOARD.(G0
30 1Y PARTS ONLY WARRANTY
30 BASE WARRANTY
30 FUTURISTIC ORDER FLAG SKU(N)
30 INSPIRON ORDER - EDB
30 EDB EMF SKU
30 CONSOLIDATION FEE
30 EX-WORKS

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I'm thinking of getting Intel Turbo Memory and want to know would make a 15% or more difference in speed and responce?

thnx

 

More likely to slow it down. Turbo Memory is only good for systems with 512 mb of ram or less otherwise it usually slows the system down

 

I've heard good things about intel turbo memory 2.0 (4GB).