Intel Core i7-3820 vs Intel Core i7-4820K Full Specs
4 Cores | 4 Cores |
8 Threads | 8 Threads |
Base Clock 3.6GHz | Base Clock 3.7GHz |
Boost Clock 3.8GHz | Boost Clock 3.9GHz |
Overclocking Locked | Overclocking Locked |
L1i 32KB | L1i 32KB |
L1d 32KB | L1d 32KB |
L2 256KB | L2 256KB |
L3 10MB | L3 10MB |
Type DDR3 | Type DDR3 |
Max Memory 64GB | Max Memory 64GB |
ECC No | ECC No |
Channels 4 | Channels 4 |
Bus Width 256-bit | Bus Width 256-bit |
Speed 1600MT/s | Speed 1866MT/s |
Bandwidth 51.2GB/s | Bandwidth 59.7GB/s |
Bandwidth Calculator Channels Transfer Rate ·· | Bandwidth Calculator Channels Transfer Rate ·· |
TDP 130W | TDP 130W |
T-Case 66.8°C Max | T-Case 66.8°C Max |
Included Cooler 0 | Included Cooler 0 |
Bus Type DMI | Bus Type DMI |
Bus Config 4 lanes | Bus Config 4 lanes |
Bus Speed 5GT/s | Bus Speed 5GT/s |
Bus Bandwidth 2.5GB/s | Bus Bandwidth 2.5GB/s |
PCIe PCIe 2.0 x4020GB/sBandwidth | PCIe PCIe 3.0 x2827.6GB/sBandwidth |
Manufacturer | Manufacturer |
ISA x86-64 | ISA x86-64 |
Architecture | Architecture |
Family | Family |
Branding  | Branding  |
Codename Sandy Bridge-E Sandy Bridge-EP-4Die Sandy Bridge-EP-4CVariant | Codename Ivy Bridge-E - Ivy Bridge-EVariant |
Market Segment Workstation | Market Segment Workstation |
Release Date Feb 1, 2012 | Release Date Sep 1, 2013 |
Foundry Intel | Foundry Intel |
Fabrication Node 32nm | Fabrication Node 22nm |
Die Size 294mm² | Die Size 257mm² |
Transistor Count 1.3 Billion | Transistor Count 1.9 Billion |
Transistor Density 4 MTr/mm² | Transistor Density 7 MTr/mm² |
