Intel 2x Xeon E5620 vs Intel Xeon E5462
            Intel 2x Xeon E5620
            
                $387
            
        
    
            Intel Xeon E5462
            
                $797
            
        
    | 8 Cores 16 Threads 2.4GHz Clock | 4 Cores 4 Threads 2.8GHz Clock | 
| Socket LGA 1366 | Socket LGA 771 | 
| iGPU No GPU - - | iGPU No GPU - - | 
| GB6S 355 9% | GB6S 325 8% | 
| GB6M 2,915 11% | GB6M 915 3% | 
| CB23S N/A 0% | CB23S N/A 0% | 
| CB23M N/A 0% | CB23M N/A 0% | 
| ManufacturerIntel | ManufacturerIntel | 
| ArchitectureWestmere | ArchitecturePenryn | 
| FamilyXeon | FamilyXeon | 
| Instruction Set (ISA) x86-64 | Instruction Set (ISA) x86-64 | 
| Codename Westmere-EP - - - - - - - - | Codename Harpertown - - - - - - - - | 
| Market Segment Server | Market Segment Server | 
| Release Date 3/16/2010 | Release Date 11/11/2007 | 
| Foundry Intel - - - | Foundry Intel - - - | 
| Node 32nm - - - | Node 45nm - - - | 
| Die Size 240 mm² - - - | Die Size 2x 107 mm² - - - | 
| Transistor Count 1.2 Billion - - - | Transistor Count 2x 410 Million - - - | 
| 8 Cores - - - | 4 Cores - - - | 
| 16 Threads - - - | 4 Threads - - - | 
| - 2.4GHz 2.6GHz Boost 18x Multiplier | - 2.8GHz - 7x Multiplier | 
| - - - | - - - | 
| - - - | - - - | 
| Overclocking Locked Voltage 0.75V Min 1.35V Max | Overclocking Locked Voltage 0.85V Min 1.35V Max | 
| Type QPI | Type FSB | 
| Clock 2930MHz | Clock 400MHz | 
| Data Rate Double | Data Rate Quad | 
| Transfer Rate 5.9GT/s | Transfer Rate 1.6GT/s | 
| Width 16Bit | Width 64Bit | 
| - - | - - | 
| Bandwidth 11.72GB/s | Bandwidth 12.8GB/s | 
| Bi-directional 23.44GB/s | - - | 
| L0 Instruction - - | L0 Instruction - - | 
| L0 Data - - | L0 Data - - | 
| L1 Instruction 32KB/Core 4-way set associative - - - - | L1 Instruction 32KB/Core 8-way set associative - - - - | 
| L1 Data 32KB/Core 8-way set associative - - - - | L1 Data 32KB/Core 8-way set associative - - - - | 
| L2 256KB/Core 8-way set associative - - - - - - - - - - | L2 - - 12MB Shared 16-way set associative - - - - - - - - | 
| L3 - 12MB Shared - 16-way set associative - - - - - | - - - - - - - - - - | 
| - - - - | - - - - | 
| Channels 3 | No Memory Controller | 
| Max Memory 288GB | |
| ECC Supported | |
| Bus Width/Channel 64Bit Bus Width 192Bit | |
| Clock 533MHz Transfer Rate 1066MT/s | |
| Bandwidth/Channel 8.5GB/s Bandwidth 25.6GB/s | 
| TDP 80W - - - | TDP 80W - - - | 
| Temp - 78°C TCase | Temp - 67°C TCase | 
| Included Cooler Not Included | Included Cooler Not Included | 
| No PCIe | No PCIe | 
| No GPU - - - - | No GPU - - - - | 
| No NPU - | No NPU - | 
| - - | - - | 
| -  | -  | 
| - - | - - | 
| No Cellular | No Cellular | 
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