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Intel Socket 2066
The Intel Core i9-7940X was a desktop processor with 14 cores, launched in September 2017, at an MSRP of $1399. It is part of the Core i9 lineup, using the X-Series 7th Gen architecture with Socket 2066. Thanks to Intel Hyper-Threading the core-count is effectively doubled, to 28 threads. Core i9-7940X has 19.25 MB of L3 cache and operates at 3.1 GHz by default, but can boost up to 4.4 GHz, depending on the workload. Intel is building the Core i9-7940X on a 14 nm production process, the transistor count is unknown. You may freely adjust the unlocked multiplier on Core i9-7940X, which simplifies overclocking greatly, as you can easily dial in any overclocking frequency.
With a TDP of 165 W, the Core i9-7940X is extremely power hungry, which means you need top-notch cooling. Intel's processor supports DDR4 memory with a quad-channel interface. The highest officially supported memory speed is 2666 MT/s, but with overclocking (and the right memory modules) you can go even higher. For communication with other components in the system, Core i9-7940X uses a PCI-Express Gen 3 connection. This processor does not have integrated graphics, you will need a separate graphics card.
Hardware virtualization is available on the Core i9-7940X, 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 has added support for the newer AVX2 and AVX-512 instructions, too.
Physical
Socket: |
Intel Socket 2066
|
Foundry: |
Intel |
Process Size: |
14 nm |
Die Size: |
484 mm² |
Package: |
FC-LGA2066 |
Processor
Market: |
Desktop |
Production Status: |
End-of-life |
Release Date: |
Sep 1st, 2017 |
Launch Price: |
$1399 |
Part#: |
SR3RQ |
Bundled Cooler: |
None |
Performance
Frequency: |
3.1 GHz |
Turbo Clock: |
up to 4.4 GHz |
Boost 2.0: | up to 4.3 GHz |
All-Core Turbo: | 3.9 GHz |
Base Clock: |
100 MHz |
Multiplier: |
31.0x |
Multiplier Unlocked: |
Yes |
TDP: |
165 W |
Architecture
Codename: |
Skylake-X |
Generation: |
Core i9
(X-Series 7th Gen) |
Memory Support: |
DDR4
|
Rated Speed: |
2666 MT/s
|
Memory Bus: |
Quad-channel
|
ECC Memory: |
No
|
PCI-Express: |
Gen 3, 44 Lanes (CPU only) |
Chipset: |
X299
|
Core Config
# of Cores: |
14 |
# of Threads: |
28 |
SMP # CPUs: |
1 |
Integrated Graphics: |
N/A
|
Cache
Cache L1: |
64 KB (per core) |
Cache L2: |
1 MB (per core) |
Cache L3: |
19.25 MB (shared) |
Features
- MMX
- SSE
- SSE2
- SSE3
- SSSE3
- SSE4.2
- AVX
- AVX2
- AVX-512
- EIST
- Intel 64
- XD bit
- VT-x
- VT-d
- HTT
- AES-NI
- TSX
- TXT
- CLMUL
- FMA3
- F16C
- BMI1
- BMI2
- Boost 2.0
- Boost 3.0
|
Notes
This processor comes with an unlocked BCLK multiplier, allowing users to set the multiplier value higher than shipped value, to facilitate better overclocking. |