Intel has this somewhat strange feeling separation of 'mainstream' and 'enthusiast' platforms, with a release cadence and model names that are sure to confuse the uninitiated. Take the Core i7-6700K, a "6th Generation Intel Core" part that launched last year, codenamed Skylake; that's not too confusing, though without searching out performance charts you can't really tell how fast the part is just by its name. Now compare that with the Core i7-6800K. You might assume that this is also a 6th Gen part, but it's actually 5th Gen Broadwell-E. And which part is faster depends on what you're actually doing.
The Core i7-6800K is the spiritual successor to the Core i7-5820K. Both have six CPU cores with Hyper-Threading (SMT allows two threads per core), and both come with 28 PCIe Gen3 lanes. The main updates with Broadwell-E involve slightly higher clock speeds on the 6800K and the move to a 14nm process, with some minor improvements in architecture that boost performance a few percent.
Graphically, the Intel Core i7-6800K 3.4 GHz Six-Core LGA 2011-v3 Processor does not contain an integrated graphics controller, meaning that users will need to purchase a dedicated graphics card of their choice. This processor is also unlocked, meaning that it can be overclocked past its maximum turbo frequency. However, overclocking past the maximum turbo frequency is not recommended. Not only will it cause the processor to run much hotter, it will also void the limited 3-year warranty.
The number of PCIe 3.0 lanes coming directly out of the CPU itself means the 6800K is a better choice for a multi-GPU machine than a 6700K Skylake chip. This higher-end option comes with 28 lanes versus the Skylake’s 16 lanes. That’s not going to give you enough to allow for two GPUs running in full x16 configuration, but with both graphics cards operating in x8 PCIe mode there are still enough lanes left for a PCIe-attached SSD to plug directly into the CPU itself. It also means you can create a three-way GPU setup all connected straight into the processor’s onboard PCIe controller.
- Intel Turbo Boost Max Technology 3.0
- Intel Turbo Boost Max Technology 3.0 identifies the best performing core(s) on a processor and provides increased performance on those cores through increasing frequency as needed by taking advantage of power and thermal headroom
- Intel Turbo Boost Technology
- Intel Turbo Boost Technology dynamically increases the processor's frequency as needed by taking advantage of thermal and power headroom to give you a burst of speed when you need it, and increased energy efficiency when you don't
- Intel Hyper-Threading Technology
- Intel Hyper-Threading Technology (Intel HT Technology) delivers two processing threads per physical core. Highly threaded applications can get more work done in parallel, completing tasks sooner
- Intel Virtualization Technology for Directed I/O (VT-d)
- Intel Virtualization Technology for Directed I/O (VT-d) continues from the existing support for IA-32 (VT-x) and Itanium processor (VT-i) virtualization adding new support for I/O-device virtualization. Intel VT-d can help end users improve security and reliability of the systems and also improve performance of I/O devices in virtualized environments
- Intel VT-x with Extended Page Tables (EPT)
- Intel VT-x with Extended Page Tables (EPT), also known as Second Level Address Translation (SLAT), provides acceleration for memory intensive virtualized applications. Extended Page Tables in Intel Virtualization Technology platforms reduces the memory and power overhead costs and increases battery life through hardware optimization of page table management
- Intel 64
- Intel 64 architecture delivers 64-bit computing on server, workstation, desktop, and mobile platforms when combined with supporting software. Intel 64 architecture improves performance by allowing systems to address more than 4GB of both virtual and physical memory
- Process Technology: 14 nm
- Clock Speed: 3.40 GHz
- Manufacturer: Intel Corporation
- Product Model: i7-6800K
- Product Name: Core i7 Hexa-core i7-6800K 3.4GHz Desktop Processor
- Package Type: Retail
- Product Line: Core i7
- Product Series: i7-6800
- Processor Socket: Socket LGA 2011-v3
- Brand Name: Intel
- L2 Cache: 1.50 MB
- L3 Cache: 15 MB
- Processor Core: Hexa-core (6 Core)
- 64-bit Processing: Yes
- Thermal Design Power: 140 W
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