Intel Xeon E3-1275 vs Intel Xeon E3-1275 v5 Full Specs
4 Cores 8 Threads 3.4GHz | 4 Cores 8 Threads 3.6GHz |
TDP 95W | TDP 80W |
Bandwidth 21.3GB/s DDR3 | Bandwidth 34.1GB/s · |
iGPU | iGPU |
·· 259.2 GFLOPSFP32 | ·· 441.6 GFLOPSFP32 |
Socket | Socket |
4 Cores | 4 Cores |
8 Threads | 8 Threads |
Base Clock 3.4GHz | Base Clock 3.6GHz |
Boost Clock 3.8GHz | Boost Clock 4GHz |
Overclocking Locked | Overclocking Locked |
L1i 32KB | L1i 32KB |
L1d 32KB | L1d 32KB |
L2 256KB | L2 1MB |
L3 8MB | L3 8MB |
Type DDR3 | Type · |
Max Memory 32GB | Max Memory 64GB |
ECC Yes | ECC Yes |
Channels 2 | Channels 2 |
Bus Width 128-bit | Bus Width 128-bit |
Speed 1333MT/s | Speed 2133MT/s |
Bandwidth 21.3GB/s | Bandwidth 34.1GB/s |
Bandwidth Calculator Channels Transfer Rate ·· | Bandwidth Calculator Channels Transfer Rate ·· |
TDP 95W | TDP 80W |
T-Case 72.6°C Max | T-Case - |
Included Cooler - | Included Cooler 0 |
Bus Type DMI | Bus Type DMI |
Bus Config 4 lanes | Bus Config 4 lanes |
Bus Speed 5GT/s | Bus Speed 8GT/s |
Bus Bandwidth 2.5GB/s | Bus Bandwidth 4GB/s |
PCIe PCIe 2.0 x168GB/sBandwidth | PCIe PCIe 3.0 x1615.8GB/sBandwidth |
iGPU | iGPU |
Shaders 96 | Shaders 192 |
Boost Clock 1.35GHz | Boost Clock 1.15GHz |
·· 259.2 GFLOPSFP32 | ·· 441.6 GFLOPSFP32 |
Manufacturer | Manufacturer |
ISA x86-64 | ISA x86-64 |
Architecture | Architecture |
Family | Family |
Branding  | Branding  |
Codename Gladden Sandy Bridge-HE-4Die Sandy Bridge-4C-GT2Variant | Codename Skylake-E - Skylake-4C-GT2Variant |
Market Segment Server | Market Segment Server |
Release Date Apr 3, 2011 | Release Date Oct 1, 2015 |
Foundry Intel | Foundry Intel |
Fabrication Node 32nm | Fabrication Node 14nm |
Die Size 216mm² | Die Size 122mm² |
Transistor Count 1.2 Billion | Transistor Count 2.1 Billion |
Transistor Density 5 MTr/mm² | Transistor Density 17 MTr/mm² |
