Can AMD'S 65 nm Core Fight Back?

Test Setup

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System Hardware
Processor IAMD Athlon 64 X2 5000+ (Windsor core)(90 nm, 2.6 GHz, 2x64 kB L1 Cache, 2x 512 kB L2 Cache, Model ADA5000IAA5CU)
Processor IIAMD Athlon 64 X2 5000+ (Brisbane core)(65 nm, 2.6 GHz, 2x64 kB L1 Cache, 2x 512 kB L2 Cache, Model ADO5000IAA5DD)
MotherboardAsus M2N32 SLI DeluxeChipset : Nvidia nForce 590 SLI, BIOS : 0811
Common Hardware
RAM2x 1024 MB DDR2-800 (CL 3.0-4-3-9)Corsair CM2X1024-6400C3 XMS6403v1.1
Graphics CardHIS Radeon X1900XTX IceQ3GPU : ATI X1900XTX (650 MHz)RAM : 512 MB GDDR3 (1550 MHz)
System Hard Drive1x 150 GB 10,000 RPM, 8 MB Cache, SATA/150Western Digital WD1500ADFD
DVD-ROMGigabyte GO-D1600C (16x)
Benchmarks
Load GeneratorToast (1 Task/Core)
Software
ATI GraphicCatalyst Suite 6.12
Nvidia nForce 590 SeriesForceware 9.35
DirectXVersion : 9.0c (4.09.0000.0904)
OSWindows XP, Build 2600 SP2

Benchmarks And Settings

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Applications
WinRARVersion 3.61 (Multi-Core)(303 MB, 47 Files, 2 Folders)Compression = BestDictionary = 4096 kB
Synthetic
EverestVersion 3.01.652Cache & Memory Benchmark
PCMark05 ProVersion : 1.1.0CPU and Memory TestsWindows Media Player 10.00.00.3646Windows Media Encoder 9.00.00.2980
SiSoftware Sandra 2007Version 2007.5.11.17CPU Test = CPU Arithmetic / MultiMediaMemory Test = Bandwidth BenchmarkMemory Latency Test = ns
Other
Windows Media Player 10Version : 10.00.00.36.46