Intel Xeon E5-2637 v3 vs Intel Xeon E5-2643 Full Specs
4 Cores 8 Threads 3.5GHz | 4 Cores 8 Threads 3.3GHz |
TDP 135W | TDP 130W |
Bandwidth 68.3GB/s DDR4 | Bandwidth 51.2GB/s DDR3 |
Socket | Socket |
4 Cores | 4 Cores |
8 Threads | 8 Threads |
Base Clock 3.5GHz | Base Clock 3.3GHz |
Boost Clock 3.7GHz | Boost Clock 3.5GHz |
Overclocking Locked | Overclocking Locked |
L1i 32KB | L1i 32KB |
L1d 32KB | L1d 32KB |
L2 256KB | L2 256KB |
L3 15MB | L3 10MB |
Type DDR4 | Type DDR3 |
Max Memory 768GB | Max Memory 384GB |
ECC Yes | ECC Yes |
Channels 4 | Channels 4 |
Bus Width 256-bit | Bus Width 256-bit |
Speed 2133MT/s | Speed 1600MT/s |
Bandwidth 68.3GB/s | Bandwidth 51.2GB/s |
Bandwidth Calculator Channels Transfer Rate ·· | Bandwidth Calculator Channels Transfer Rate ·· |
TDP 135W | TDP 130W |
Bus Type QPI | Bus Type QPI |
Bus Config 16-bit | Bus Config 16-bit |
Bus Speed 9.6GT/s | Bus Speed 8GT/s |
Bus Bandwidth 19.2GB/s | Bus Bandwidth 16GB/s |
PCIe PCIe 3.0 x4039.4GB/sBandwidth | PCIe PCIe 3.0 x4039.4GB/sBandwidth |
Manufacturer | Manufacturer |
ISA x86-64 | ISA x86-64 |
Architecture | Architecture |
Family | Family |
Branding  | Branding  |
Codename Haswell-E - Haswell-E-LCCVariant | Codename Sandy Bridge-E Sandy Bridge-EP-8Die Sandy Bridge-EP-8CVariant |
Market Segment Server | Market Segment Server |
Release Date Sep 8, 2014 | Release Date Mar 6, 2012 |
Foundry Intel | Foundry Intel |
Fabrication Node 22nm | Fabrication Node 32nm |
Die Size 354mm² | Die Size 435mm² |
Transistor Count 2.6 Billion | Transistor Count 2.3 Billion |
Transistor Density 7 MTr/mm² | Transistor Density 5 MTr/mm² |
