Here is my 1.6GHz E2140 overclocked to 2.8 for comparison.
SiSoftware Sandra
Benchmark Results
Dhrystone ALU : 23663MIPS
Whetstone iSSE3 : 17809MFLOPS
Results Interpretation : Higher index values are better.
Performance vs. Speed
Dhrystone ALU : 8.45MIPS/MHz
Whetstone iSSE3 : 6.36MFLOPS/MHz
Results Interpretation : Higher index values are better.
Performance Test Status
Run ID : Intel(R) Pentium(R) Dual CPU E2140 @ 1.60GHz (2C, 2.80GHz, 1MB L2, 1.40GHz FSB)
Platform Compliance : x86
NUMA Support : No
SMP (Multi-Processor) Benchmark : Yes
Total Test Threads : 2
Multi-Core Test : Yes
Cores per Processor : 2
SMT (Multi-Threaded) Benchmark : No
Processor Affinity : P0C0T0 P0C1T0
System Timer : 2.80GHz
Number of Runs : 64000 / 640
Processor
Model : Intel(R) Pentium(R) Dual CPU E2140 @ 1.60GHz
Speed : 2.80GHz
Cores per Processor : 2 Unit(s)
Type : Dual-Core
L2 On-board Cache : 1MB, ECC, Synchronous, ATC, 4-way, 64 byte line size, 2 threads sharing
Features
SSE Technology : Yes
SSE2 Technology : Yes
SSE3 Technology : Yes
Supplemental SSE3 Technology : Yes
SSE4.1 Technology : No
SSE4.2 Technology : No
EMMX - Extended MMX Technology : No
SSE4A Technology : No
HTT - Hyper-Threading Technology : No
Performance 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!
Tip 2 : Double-click tip or press Enter while a tip is selected for more information about the tip.