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Test System Specs & Memory

Intel Core i5 System Specs: Hardware
- Intel Core i5 750
-x2 2GB G.Skill DDR3 PC3-12800 (CAS 9-9-9-24)
- Asrock P55 Extreme (Intel P55)
- OCZ GameXStream (700 watt)
- Seagate 500GB 7200-RPM (Serial ATA300)
- HIS Radeon HD 5750 (1GB)
Software
- Microsoft Windows 7 Ultimate (64-bit)
- ATI Catalyst 9.11

AMD Athlon II X4 System Specs: Hardware
- AMD Athlon II X4 600e
-x2 2GB G.Skill DDR3 PC3-12800 (CAS 9-9-9-24)
- Asus M4A79T Deluxe (AMD 790FX)
- OCZ GameXStream (700 watt)
- Seagate 500GB 7200-RPM (Serial ATA300)
- HIS Radeon HD 5750 (1GB)
Software
- Microsoft Windows 7 Ultimate (64-bit)
- ATI Catalyst 9.11

Asrock Ion 330HT-BD System Specs: Hardware
- Intel Atom 330
-x2 1GB DDR2 PC2-6400 (CAS 5-5-5-20)
- Asrock MCP7AION-HT (Nvidia Ion)
- Seagate 320GB 5400-RPM (Serial ATA300)
Software
- Microsoft Windows 7 Ultimate (64-bit)
- Nvidia Forceware 195.62

Gigabyte GA-GC230D System Specs: Hardware
- Intel Atom 230
-x1 2GB DDR2 PC2-6400 (CAS 5-5-5-20)
- Gigabyte GA-GC230D (Intel 945G)
- Seagate 500GB 7200-RPM (Serial ATA300)
Software
- Microsoft Windows 7 Ultimate (64-bit)
- Intel INF Update Utility 9.​​1.​​1.​​1019
- Intel Graphics Media Accelerator 15.​​12.​​75.​​4.​​64.​​1930

As you can see the memory bandwidth produced by the Atom 330 is no different to that of the single-core Atom 230 processor. Low-end AMD processors, such as the Athlon II X4 600e, have more than twice the available memory bandwidth. Furthermore mid-range processors, such as the Core i5 750, have up to 4.5x more bandwidth available.