General information |
Type |
CPU / Microprocessor |
Market segment |
Desktop |
Family |
---- Core i7 |
Model number ? |
i7-4790K |
CPU part numbers |
- CM8064601710501 is an OEM/tray microprocessor
- BX80646I74790K is a boxed processor with fan and heatsink (English version)
- BXC80646I74790K is a boxed processor with fan and heatsink (Chinese version)
- BXF80646I74790K is a boxed processor without fan and heatsink
|
Frequency ? |
4000 MHz |
Maximum turbo frequency |
4200 MHz (4 cores) 4300 MHz (3 cores) 4400 MHz (1 or 2 cores) |
Bus speed ? |
5 GT/s DMI |
Clock multiplier ? |
40 |
Package |
1150-land Flip-Chip Land Grid Array |
Socket |
Socket 1150 / H3 / LGA1150 |
Size |
1.48" x 1.48" / 3.75cm x 3.75cm |
Introduction date |
June 2, 2014 |
Price at introduction |
$339 (OEM) $350 (box) |
S-spec numbers |
Part number | ES/QS processors | Production processors |
|
QG81 |
SR219 |
BX80646I74790K |
|
+ |
BXC80646I74790K |
|
+ |
BXF80646I74790K |
|
+ |
CM8064601710501 |
|
+ |
Unknown |
+ |
|
|
Architecture / Microarchitecture |
Microarchitecture |
Haswell |
Processor core ? |
Devil's Canyon |
Core stepping ? |
C0 (QG81, SR219) |
CPUID |
306C3 (QG81) |
Manufacturing process |
0.022 micron |
Data width |
64 bit |
The number of CPU cores |
4 |
The number of threads |
8 |
Floating Point Unit |
Integrated |
Level 1 cache size ? |
4 x 32 KB 8-way set associative instruction caches 4 x 32 KB 8-way set associative data caches |
Level 2 cache size ? |
4 x 256 KB 8-way set associative caches |
Level 3 cache size |
8 MB 16-way set associative shared cache |
Physical memory |
32 GB |
Multiprocessing |
Uniprocessor |
Features |
- MMX instructions
- SSE / Streaming SIMD Extensions
- SSE2 / Streaming SIMD Extensions 2
- SSE3 / Streaming SIMD Extensions 3
- SSSE3 / Supplemental Streaming SIMD Extensions 3
- SSE4 / SSE4.1 + SSE4.2 / Streaming SIMD Extensions 4 ?
- AES / Advanced Encryption Standard instructions
- AVX / Advanced Vector Extensions
- AVX2 / Advanced Vector Extensions 2.0
- BMI / BMI1 + BMI2 / Bit Manipulation instructions
- F16C / 16-bit Floating-Point conversion instructions
- FMA3 / 3-operand Fused Multiply-Add instructions
- EM64T / Extended Memory 64 technology / ---- 64 ?
- NX / XD / Execute disable bit ?
- HT / Hyper-Threading technology ?
- VT-x / Virtualization technology ?
- VT-d / Virtualization for directed I/O
- TBT 2.0 / Turbo Boost technology 2.0 ?
- TSX / Transactional Synchronization Extensions
|
Low power features |
Enhanced SpeedStep technology ? |
Integrated peripherals / components |
Integrated graphics |
GPU Type: HD 4600 Graphics tier: GT2 Microarchitecture: Gen 7.5 Execution units: 20 Base frequency (MHz): 350 Maximum frequency (MHz): 1250 The number of supported displays: 3 |
Memory controller |
The number of controllers: 1 Memory channels: 2 Supported memory: DDR3-1333, DDR3-1600 Maximum memory bandwidth (GB/s): 25.6 |
Other peripherals |
- Direct Media Interface 2.0
- PCI Express 3.0 interface
|
Electrical / Thermal parameters |
Maximum operating temperature ? |
72.72°C |
Thermal Design Power ? |
88 Watt |
Notes on ---- Core i7-4790K |
- According to another source, the maximum Turbo Boost frequency is 4.1 GHz
- The processor has unlocked clock multiplier
- TSX instructions are supported for software development only. Due to internal defect, their usage may result in unpredictable system behavior
- The processor has the following security, data protection and/or software features: ---- Secure Key, Identity Protection technology, OS Guard and Anti-Theft technology.
- The CPU is compatible with DirectX 11.2, OpenGL 4.3 and OpenCL 1.2 APIs.
- The graphics unit has the following software features enabled: ---- Wireless Display, Quick Sync Video, Clear Video HD technology, InTru 3D technology and Insider.
|