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Intel Core i7-4790K

4
Cores
8
Threads
88 W
TDP
4 GHz
Frequency
4.4 GHz
Boost
Haswell
Codename
Socket 1150
Socket
Front
Front
Connectivity
Connectivity
Intel Socket 1150
Intel Socket 1150
The Intel Core i7-4790K was a desktop processor with 4 cores, launched in May 2014, at an MSRP of $350. It is part of the Core i7 lineup, using the Haswell architecture with Socket 1150. Thanks to Intel Hyper-Threading the core-count is effectively doubled, to 8 threads. Core i7-4790K has 8 MB of L3 cache and operates at 4 GHz by default, but can boost up to 4.4 GHz, depending on the workload. Intel is building the Core i7-4790K on a 22 nm production process using 1,400 million transistors. You may freely adjust the unlocked multiplier on Core i7-4790K, which simplifies overclocking greatly, as you can easily dial in any overclocking frequency.
With a TDP of 88 W, the Core i7-4790K consumes a good deal of power, so decent cooling is needed. Intel's processor supports DDR3 memory with a dual-channel interface. The highest officially supported memory speed is 1600 MT/s, but with overclocking (and the right memory modules) you can go even higher. For communication with other components in the computer, Core i7-4790K uses a PCI-Express Gen 3 connection. This processor features the Intel HD 4600 integrated graphics solution.
Hardware virtualization is available on the Core i7-4790K, which greatly improves virtual machine performance. Additionally, IOMMU virtualization (PCI passthrough) is supported, so that guest virtual machines may directly use host hardware. Programs using Advanced Vector Extensions (AVX) will run on this processor, boosting performance for calculation-heavy applications. Besides AVX, Intel is including the newer AVX2 standard, too, but not AVX-512.

Physical

Socket: Intel Socket 1150
Foundry: Intel
Process Size: 22 nm
Transistors: 1,400 million
Die Size: 177 mm²
Package: FC-LGA12C
tCaseMax: 72°C

Processor

Market: Desktop
Production Status: End-of-life
Release Date: May 1st, 2014
Launch Price: $350
Part#: SR219

Performance

Frequency: 4 GHz
Turbo Clock: up to 4.4 GHz
Base Clock: 100 MHz
Multiplier: 40.0x
Multiplier Unlocked: Yes
TDP: 88 W

Architecture

Codename: Haswell
Generation: Core i7
(Haswell)
Memory Support: DDR3
Rated Speed: 1600 MT/s
Memory Bus: Dual-channel
ECC Memory: No
PCI-Express: Gen 3, 16 Lanes
(CPU only)
Chipsets: Z87, H87, Z97, H97

Core Config

# of Cores: 4
# of Threads: 8
SMP # CPUs: 1
Integrated Graphics: Intel HD 4600

Cache

Cache L1: 64 KB (per core)
Cache L2: 256 KB (per core)
Cache L3: 8 MB (shared)

Features

  • MMX
  • SSE
  • SSE2
  • SSE3
  • SSSE3
  • SSE4.2
  • AVX
  • AVX2
  • EIST
  • Intel 64
  • XD bit
  • VT-x
  • VT-d
  • HTT
  • AES-NI
  • TSX
  • TXT
  • CLMUL
  • FMA3
  • F16C
  • BMI1
  • BMI2
  • Boost 2.0

Notes

Intel HD 4600 frequency: 350-1250MHz
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