Core i7-4940mx 3.10GHz
Intel (0675901261005 / CW8064701474604) - DMI2 - PC - Dual-channel - DDR3L-SDRAM - Intel® HD Graphics 4600 - L3 - Haswell - 4th gen Intel® Core™ i7 Extreme - Intel - i7-4940MX - 64-bit - Intel Core i7-4900 Desktop Extreme Edition Series
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Intel Core i7-4940MX – a powerhouse of performance engineered for demanding desktop environments.
Processor Overview
The Core i7-4940MX is part of Intel’s 4th generation “Haswell” lineup, built on a refined 22 nm lithography. It delivers a base frequency of 3.10 GHz, with the ability to turbo boost up to 4.0 GHz, ensuring rapid response times for both single‑threaded and multi‑threaded workloads.
Core Architecture & Threading
This processor houses four physical cores and supports eight threads through Hyper‑Threading technology, allowing simultaneous execution of multiple tasks without compromising performance. The integrated L3 cache spans 8 MB, providing quick access to frequently used data.
Instruction Set & Performance Enhancements
The i7-4940MX supports advanced instruction sets including AVX 2.0, SSE4.1, and SSE4.2. It also incorporates Intel TSX‑NI, enabling transactional synchronization for improved multi‑threaded efficiency. Enhanced Intel SpeedStep Technology allows dynamic frequency scaling to balance power consumption with performance demands.
Memory Support & Configuration
Designed for high‑capacity systems, the processor supports up to 32 GB of DDR3L‑SDRAM, operating at clock speeds of 1333 MHz or 1600 MHz. Dual‑channel memory architecture ensures optimal bandwidth and reduced latency.
Integrated Graphics & Display Capabilities
The built‑in Intel® HD Graphics 4600 operates from a base frequency of 400 MHz, providing solid performance for everyday graphics tasks, media playback, and light gaming. This eliminates the need for a discrete GPU in many scenarios.
PCI Express & Expansion Options
The i7-4940MX offers versatile PCI Express configurations: 1×16, 2×8, or 1×8 + 2×4, all running at the latest PCIe 3.0 standard. With a maximum of 16 lanes, it supports high‑throughput peripherals such as SSDs, GPUs, and networking cards.
Thermal Management & Reliability
Operating within a safe thermal envelope, the processor’s junction temperature limit is set at 100 °C. It incorporates robust thermal monitoring technologies to maintain optimal temperatures under load. The chip does not support ECC memory or embedded options, focusing on mainstream desktop performance.
Physical Characteristics & Compatibility
The CPU package measures 37.5 mm × 37.5 mm × 4.7 mm, fitting into the Socket G3 interface. It is part of the Intel Core i7-4900 Desktop Extreme Edition Series, ensuring compatibility with a range of high‑end motherboards designed for desktop extreme performance.
Bus & Interface Specifications
The processor communicates over a DMI2 bus type and supports a system bus rate of 5 GT/s. These specifications guarantee efficient data transfer between the CPU, memory, and peripheral devices.
Operating Modes & Architecture Support
Fully 64‑bit capable, the i7-4940MX operates in both single‑threaded and multi‑threaded modes, making it suitable for modern operating systems and applications that leverage 64‑bit architecture for enhanced performance and memory addressing.
Key Features Summary
- 4 cores / 8 threads
- Base frequency: 3.10 GHz | Boost: 4.0 GHz
- L3 cache: 8 MB
- Supports up to 32 GB DDR3L‑SDRAM (1333/1600 MHz)
- Intel® HD Graphics 4600 (400 MHz base)
- PCIe 3.0: 1×16, 2×8, or 1×8+2×4 configurations
- 22 nm Haswell architecture
- Intel TSX‑NI, Enhanced SpeedStep, Idle States, Demand Based Switching
- Maximum PCIe lanes: 16
- Tjunction limit: 100 °C
The Core i7-4940MX stands as a robust solution for desktop systems requiring high core counts, efficient power management, and versatile expansion capabilities. Its blend of performance features makes it an ideal choice for professionals and enthusiasts seeking reliable computing power without the need for discrete graphics solutions.
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Category
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- Processors for computers |
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| Colors
Predominant colors of the product |
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| Tags | Intel Core Graphics card Graphics card supported |
| Identifiers | |
| Brand |  Intel is a computer chip manufacturer that also produces motherboard chipsets, network interface controllers and other integrated circuits. It is the world's largest semiconductor company. |
| MPN | Intel CW8064701474604 |
| ID | 18370154 |
| Dimensions / Weight | |
| Key Features | |
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Box Indicates whether a product is supplied in a closed box or container. A value of "Yes" means the item comes with protective packaging; a value of "No" indicates it does not.
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No |
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Bus Type The interface or communication bus that a component uses to connect with other parts of a system, such as PCI Express, USB, SATA, or legacy buses like FSB and QPI. It indicates the protocol and physical connection used for data transfer between devices.
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DMI2 |
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Component for Specifies the type of device or system that the product is intended to be used with, such as a PC, server, notebook, surveillance system, or other electronic equipment. The value represents a single category and can be used to filter or group products by their target platform.
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PC |
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ECC Indicates whether the memory module or component supports Error‑Correcting Code (ECC) for detecting and correcting single-bit errors during operation. A value of "Yes" means ECC is enabled, allowing automatic correction of data corruption; a value of "No" indicates no ECC support.
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No |
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Embedded options available Indicates whether the product includes embedded options such as firmware features, hardware modules or configuration settings that are built into the device and available for use without external accessories.
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No |
| Enhanced intel speedstep technology | Yes |
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Execute disable bit Indicates whether the processor’s Execute Disable bit is enabled, allowing the CPU to prevent execution of code from memory regions marked as non-executable.
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Yes |
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Idle states A list of the various low‑power or standby modes that a device can enter to conserve energy when not actively performing tasks.
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Yes |
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Intel Demand Based Switching Indicates whether the product incorporates Intel’s Demand‑Based Switching technology, which dynamically adjusts power delivery to components based on workload demands, improving energy efficiency and performance.
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Yes |
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Intel optane memory Indicates whether the product includes support for Intel Optane memory, a technology that uses non‑volatile storage to accelerate system performance by caching frequently used data and improving boot times.
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No |
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Intel TSX-NI Indicates the specific version of Intel Transactional Synchronization Extensions – No Interlock (TSX‑NI) supported by a processor, which determines its capability for efficient transaction processing and concurrency control.
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Yes |
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Maximum internal memory supported by processor The largest amount of internal random‑access memory (RAM) that a processor can address and support, expressed as a data size such as megabytes or gigabytes. It indicates the upper limit of memory capacity for active processes and multitasking performance on devices using this CPU.
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32 GB |
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Maximum number of PCI Express lanes The total count of PCI Express lanes available on a device or component, indicating the maximum number of high‑speed communication channels that can be used simultaneously for peripherals such as graphics cards, storage devices, and networking adapters.
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16 |
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Memory channels The configuration of memory channels supported by a device, indicating how many independent memory paths the system can use for data transfer (e.g., Dual‑channel, Quad‑channel). This attribute helps users understand the potential bandwidth and performance characteristics of the memory subsystem.
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Dual-channel |
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Memory clock speeds supported by processor The set of operating frequencies that a processor can run at, expressed in hertz (Hz). Values are typically listed as individual frequencies or ranges separated by commas, indicating the base clock and any boost or turbo options available for the CPU.
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1333,1600 MHz |
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Memory types supported by processor A list of the types of memory modules that a device can use, such as DDR4 SDRAM, LPDDR3, or other compatible standards. Each entry represents a distinct memory technology supported by the hardware.
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DDR3L-SDRAM |
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On-board graphics adapter The model name or number of the integrated graphics adapter built into a device, such as a laptop, desktop, or motherboard. It identifies the specific GPU variant used for rendering and video processing, allowing users to compare visual performance and compatibility across products.
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Yes |
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On-board graphics adapter base frequency The clock speed at which the integrated graphics processor runs under normal conditions, expressed in hertz (Hz). It indicates how many cycles per second the GPU performs and is useful for comparing visual performance across devices that use an on‑board graphics solution.
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400 MHz |
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On-board graphics adapter model The model name or number of the integrated graphics adapter built into a device, such as a laptop or motherboard. It identifies the specific GPU variant used for rendering and video processing, allowing users to compare visual performance and compatibility across products.
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Intel® HD Graphics 4600 |
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PCI Express configurations A textual description of how PCI Express lanes are distributed across the available slots or interfaces in a device. The value typically lists groups of lanes separated by commas, where each group may contain a number of lanes and optional ‘+’ signs to indicate combined lanes that share the same speed (e.g., "1x16", "2x8", "1x8+2x4"). This attribute helps users understand the bandwidth capacity and compatibility of expansion slots.
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1x16,2x8,1x8+2x4 |
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PCI Express slots version The version of the PCI Express specification supported by a device or component. It indicates the maximum bandwidth and compatibility with PCIe devices such as graphics cards, storage controllers, and expansion cards. The value is typically expressed as a numeric revision (e.g., 2.0, 3.0, 4.0) but may also include descriptive labels for specific generations.
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3.0 |
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Processor ARK ID The Processor ARK ID is a numeric identifier assigned by Intel to each processor model. It uniquely distinguishes one CPU from another and can be used to look up detailed specifications, compatibility information, or firmware updates for that specific chip.
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78940 |
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Processor boost frequency The maximum operating frequency that a processor can reach when its turbo or boost feature is active, expressed in hertz (Hz). This value indicates the peak performance capability of the CPU under load and helps users compare how fast a processor can run beyond its base clock speed.
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4 GHz |
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Processor cache The amount of internal memory reserved for a processor’s cache, expressed in units such as megabytes (MB) or gigabytes (GB). This value indicates how much data the CPU can store locally to accelerate access and improve performance.
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8 MB |
| Processor codename | Haswell |
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Processor family The processor family identifies the group or series of CPU models that share a common architecture, design, and performance characteristics. It helps users compare processors across brands and generations by indicating the underlying technology used in the chip.
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4th gen Intel® Core™ i7 Extreme |
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Processor frequency The fundamental operating frequency of a processor, expressed in hertz (Hz). It indicates the speed at which the CPU runs under normal conditions and is typically reported in gigahertz (GHz) or megahertz (MHz). This value helps users compare performance potential across different models.
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3.1 GHz |
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Processor lithography The lithography process defines the minimum feature size that can be etched onto a semiconductor chip, expressed in nanometers (nm). It indicates the manufacturing technology generation and influences performance, power consumption, and integration density of the processor.
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22 nm |
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Processor manufacturer The company that designs and produces the central processing unit (CPU) used in a device. This value identifies the brand of the processor, such as Intel, AMD, Qualcomm, or ARM Holdings, allowing users to assess compatibility, performance expectations, and support resources.
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Intel |
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Processor model Identifies the exact model of the central processing unit used in a device, including brand and numeric designation such as "Intel Core i5-8250U" or "AMD Ryzen 7 3700X". This value allows users to distinguish between different processor families, generations, and performance levels.
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i7-4940MX |
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Processor operating modes The set of instruction set architectures or execution modes that a processor can operate in, such as 32‑bit or 64‑bit. This attribute indicates the architectural mode(s) supported by the CPU and helps users determine compatibility with software that requires a specific bitness.
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64-bit |
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Processor package size The overall dimensions of a processor’s physical package, expressed as length × width × height in millimetres or inches. It indicates the size that must fit within a motherboard socket or mounting area and helps users compare compatibility across different CPU models.
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37.5 x 37.5 x 4.7 mm |
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Processor series The processor series identifies the family or generation of a CPU, such as "Intel Xeon E5-2600" or "AMD Ryzen 5000". It is used to group models that share similar architecture, performance characteristics and compatibility features.
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Intel Core i7-4900 Desktop Extreme Edition Series |
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Supported instruction sets A list of processor instruction set extensions that a CPU can execute, such as AVX, AVX2, SSE4.1, SSE4.2, and AVX‑512. Each value represents an individual extension or group of extensions supported by the hardware.
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AVX 2.0,SSE4.1,SSE4.2 |
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System bus rate The maximum theoretical speed at which the system bus can transfer data, expressed in gigatransfers per second (GT/s). This value indicates the bandwidth capacity of the internal communication pathway between components such as the CPU and memory or peripheral devices.
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5 GT/s |
| Thermal monitoring technologies | Yes |
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Tjunction Die maximale Temperatur, bei der ein Produkt sicher betrieben werden kann. Der Wert wird in Grad Celsius angegeben und gibt an, bis zu welcher Hitze das Gerät ohne Gefahr für Funktionsstörungen oder Schäden arbeiten darf.
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100 °C |
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