Intel Xeon E5-1660 vs Intel Xeon E7-2803 Full Specs
6 Cores | 6 Cores |
12 Threads | 12 Threads |
Base Clock 3.3GHz | Base Clock 1.73GHz |
Boost Clock 3.9GHz | Boost Clock - |
Overclocking Locked | Overclocking Locked |
L1i 32KB | L1i 32KB |
L1d 32KB | L1d 32KB |
L2 256KB | L2 256KB |
L3 15MB | L3 18MB |
Type DDR3 | Type DDR3 |
Max Memory 384GB | Max Memory 1.02TB |
ECC Yes | ECC Yes |
Channels 4 | Channels 4 |
Bus Width 256-bit | Bus Width 256-bit |
Speed 1600MT/s | Speed 1333MT/s |
Bandwidth 51.2GB/s | Bandwidth 42.7GB/s |
Bandwidth Calculator Channels Transfer Rate ·· | Bandwidth Calculator Channels Transfer Rate ·· |
TDP 130W | TDP 105W |
T-Case - | T-Case 64°C Max |
Voltage Range - | Voltage Range - |
Bus Type DMI | Bus Type QPI |
Bus Config 4 lanes | Bus Config 16-bit |
Bus Speed 5GT/s | Bus Speed 4.8GT/s |
Bus Bandwidth 2.5GB/s | Bus Bandwidth 9.6GB/s |
PCIe PCIe 3.0 x4039.4GB/sBandwidth | - |
Manufacturer | Manufacturer |
ISA x86-64 | ISA x86-64 |
Architecture | Architecture |
Family | Family |
Branding  | Branding |
Codename Sandy Bridge-E Sandy Bridge-EP-8Die Sandy Bridge-EP-8CVariant | Codename Westmere-EX - - |
Market Segment Server | Market Segment Server |
Release Date Mar 6, 2012 | Release Date Apr 3, 2011 |
Foundry Intel | Foundry Intel |
Fabrication Node 32nm | Fabrication Node 32nm |
Die Size 435mm² | Die Size 513mm² |
Transistor Count 2.3 Billion | Transistor Count 2.6 Billion |
Transistor Density 5 MTr/mm² | Transistor Density 5 MTr/mm² |
