
Core i9-7940X
Intel
PassMark
25,452
MSRP
$1399
AVG Price
$275
Performance Spectrum - CPU
About PassMark
PassMark CPU Mark evaluates processor speed through complex mathematical computations. It provides a reliable metric to compare multi-core performance, where higher scores indicate faster processing for multitasking, gaming, and heavy workloads.
Overview
The Core i9-7940X is manufactured by Intel. It was released in 1 September 2017 (8 years ago). It is based on the Skylake (server) (2017−2018) architecture. It features 14 cores and 28 threads. Base frequency is 3.1 GHz, with boost up to 4.4 GHz. L3 cache: 19.25 MB (total). L2 cache: 1 MB (per core). Built on 14 nm process technology. Socket: LGA2066. Thermal design power (TDP): 165 Watt. Memory support: DDR4-2666. Passmark benchmark score: 25,452 points. Launch price was $1,399.
Value Upgrade Path
This is the official ChipVERSUS Value Rating, comparing raw performance (PassMark) per dollar. Components placed above yours deliver better value for money.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Core i9-7940X
FPS Benchmarks
Predicted performance for Core i9-7940X across popular games. Tested paired with RTX 4090 to isolate CPU performance.

Path of Exile 2

Counter-Strike 2

League of Legends

Valorant
Technical Analysis
Detailed breakdown of Core i9-7940X specifications and capabilities.
Processing Power
The Core i9-7940X is a 14-core / 28-thread processor based on the Skylake (server) (2017−2018) architecture, manufactured on a 14 nm process node. It reaches a maximum boost clock of 4.4 GHz from a base frequency of 3.1 GHz— higher boost clocks directly translate to better single-threaded performance and responsiveness in gaming. It carries 19.25 MB (total) of L3 cache, plus 1 MB (per core) of L2 cache and 64 kB (per core) of L1 cache per core. In the PassMark benchmark (a comprehensive multi-threaded test), it scores 25,452, placing it in the High-End performance tier as a Legacy generation product.
| Specification | Core i9-7940X |
|---|---|
| Cores / ThreadsPhysical/logical processing units | 14C / 28T |
| Max Boost ClockPeak single-core speed under boost | 4.4 GHz |
| Base ClockGuaranteed minimum operating frequency | 3.1 GHz |
| ArchitectureCPU microarchitecture design | Skylake (server) (2017−2018) |
| Process NodeFabrication technology — smaller = more efficient | 14 nm |
| L3 CacheShared cache — reduces memory latency for all cores | 19.25 MB (total) |
| L2 CachePer-core fast cache for frequently accessed data | 1 MB (per core) |
| L1 CacheUltra-fast per-core cache | 64 kB (per core) |
| Die SizePhysical silicon area of the processor | 484 mm2 |
| Bus SpeedData bus frequency | 4 × 8 GT/s |
| Max TemperatureMaximum safe operating temperature (Tjmax) | 102 °C |
| 64-bit Support | Yes |
| Windows 11 Compatible | Yes |
| Unlocked MultiplierWhether the CPU can be overclocked | Yes (Overclockable) |
| PassMark ScoreOverall multi-threaded benchmark score | 25,452 |
Memory & Platform
The Core i9-7940X fits into the LGA2066 socket and supports PCIe 3.0. It supports DDR4-2666 memory.
| Specification | Core i9-7940X |
|---|---|
| TypeDesktop or Laptop processor | desktop |
| SeriesProduct family | Intel Core i9 |
| SocketMotherboard socket required | LGA2066 |
| PCIe GenerationPeripheral interconnect speed — affects GPU and SSD bandwidth | PCIe 3.0 |
| RAM TypeSupported memory standard | DDR4-2666 |
| Max CPUs in ConfigMulti-socket support for servers | 1 (Uniprocessor) |
Power & Cooling
The Core i9-7940X has a rated TDP (Thermal Design Power) of 165 Watt — this indicates the amount of heat generated under sustained load and determines what cooling solution is needed.
| Specification | Core i9-7940X |
|---|---|
| TDPThermal Design Power — heat output under sustained workload | 165 Watt |
| Max TemperatureMaximum safe junction temperature (Tjmax) | 102 °C |
Value Analysis
At an average price of $275 (MSRP: $1399), the Core i9-7940X delivers 93 PassMark points per dollar. Performance ranking position: #558 out of all indexed processors.
| Specification | Core i9-7940X |
|---|---|
| MSRPManufacturer's Suggested Retail Price | $1399 |
| Avg Price (30d)Average market price over the last 30 days | $275 |
| Launch PriceOriginal retail price at launch | $1,399 |
| Performance RankPosition in overall performance ranking | #558 |
| Release DateLaunch date | 1 September 2017 (8 years ago) |
| Release Year | 2017 |
| DesignerArchitecture designer (e.g. Intel, AMD) | Intel |
| ManufacturerFabrication foundry (e.g. TSMC) | Intel |
Similar Performance
Processors with benchmark scores closest to the current hardware, grouped by manufacturer.
Intel (12)












AMD (12)












Our Recommendation for Core i9-7940X
Suggested pairings based on performance balance
Minimum (Avoid Bottleneck) (12)










Recommended (Balanced) (12)












High-End (Max Performance) (12)












Popular Comparisons
Compare Core i9-7940X with other popular CPUs












Compare Core i9-7940X
See how this CPU stacks up against similar alternatives
Better Alternatives (8)
















Similar or Lower Performance (8)
















