Intel® Core™ i7-4940MX Extreme Edition

The Intel Core i7-4940MX Extreme Edition is a laptop processor with 4 cores and 8 threads, built on the Haswell architecture. It launched in Jan 2014. Clocks run from 3.1 GHz base to 4.0 GHz boost. A 8-MB L3 cache backs the cores (2.3 MB per core). Maximum addressable memory is 32 GB. The chip drops into the FCPGA946 socket and exposes PCIe 3.0 (16 lanes). Rated TDP is 57 W. Notable platform capabilities: Extended Page Tables (EPT).

The Intel Core i7-4940MX Extreme Edition scores 2,180 in single-core performance and 6,782 in multi-core performance (PassMark CPU Mark ratings). From those two ratings Feex computes 3,845 for overall performance, 7,460 for productivity performance, 7,654 for creator performance, 6,528 for engineering performance and 8,236 for gaming performance. Its multi-core throughput works out to 1,696 per core, 848 per thread and 119 per watt. Its computed efficiency index is 509. Its performance index is 48, so its overall performance is 52% below the Intel Core i5-12400 (index 100). Each bar shows the score as a share of a reference ceiling, which is the larger of the 99th-percentile score across the Feex CPU database and a fixed baseline.

Scores for individual PassMark CPU Mark test categories. Higher is better. These are measured test scores, not computed from the single-core and multi-core ratings.

In the individual workload tests the Intel Core i7-4940MX Extreme Edition scores 24,638 in integer math, 12,460 in floating-point math, 100,200 in compression, 1,907 in cryptography, 506 in physics simulation, 5,768 in vector SIMD, 33 in the prime sieve and 13,549 in sorting. Higher is better. Compared with the Intel Core i5-12400, it is 58% below in integer math, 73% below in floating-point math, 56% below in compression, 83% below in cryptography, 54% below in physics simulation, 63% below in vector SIMD, 51% below in the prime sieve and 40% below in sorting. Each bar shows the score as a share of that workload's reference ceiling, the larger of the 99th-percentile score across CPUs with a recorded value and a fixed baseline.

The Intel Core i7-4940MX Extreme Edition has 4 physical cores and runs 8 logical threads. It runs 2 threads per core. It runs at a base clock of 3.10 GHz and boosts up to 4.00 GHz.

The Intel Core i7-4940MX Extreme Edition is a laptop processor, belongs to the Intel Core i7 family, uses the Haswell architecture, carries the codename Haswell and is manufactured on a 22 nm process. It launched in Jan 2014.

The Intel Core i7-4940MX Extreme Edition has 256 KB of L1 cache, 1 MB of L2 cache and 8 MB of L3 cache. That adds up to about 9.3 MB of cache, or 2.31 MB per core. Each core has 256 KB of private L2 cache.

The Intel Core i7-4940MX Extreme Edition has a 3-level cache hierarchy: L1 at 256 KB, L2 at 1 MB and L3 at 8 MB. L3 is the largest level and makes up about 86% of the cache listed here.

The Intel Core i7-4940MX Extreme Edition addresses up to 32 GB of memory and uses 2 memory channels.

The Intel Core i7-4940MX Extreme Edition includes integrated graphics (Intel HD Graphics 4600).

The Intel Core i7-4940MX Extreme Edition uses the FCPGA946 socket, supports PCI Express 3.0 and provides up to 16 PCIe lanes.

The Intel Core i7-4940MX Extreme Edition has a rated TDP of 57 W.

Instruction sets, security, virtualization, AI acceleration and OS readiness. Features are listed as supported, explicitly not supported, or not recorded; a feature that is not recorded is not the same as unsupported.

The Intel Core i7-4940MX Extreme Edition is also identified by the model number i7-4940MX.

After an audit, 1 value was corrected on the Intel Core i7-4940MX Extreme Edition record. Each change is listed with its old value, new value, rule and sources.

• PCIe revision: 3 → 3.0. Rule: Cleanup pcie int to decimal. normalize to the dominant "N.0" format.

The audit log is public: all changes for this CPU, the corrections overview and the method.

Feex has recorded 51% of the specifications it tracks for the Intel Core i7-4940MX Extreme Edition. Values Feex does not hold are shown as "Not recorded" rather than estimated.

Not recorded: Core Configuration: Performance Cores, Efficiency Cores, Hybrid Architecture, All-Core Boost and Unlocked Multiplier. Architecture & Generation: ISA Family and Market Status. Cache: L4 Cache. Memory Support: Memory Bandwidth, DDR5 Support, DDR4 Support, LPDDR Support, ECC Memory and Max Memory Speed. Graphics: Graphics Base Clock, Graphics Max Clock, Execution Units, Display Outputs and Max Video Memory. Platform & Compatibility: Package and Package Size. Power & Thermals: Base Power, Maximum Turbo Power, Configurable TDP (Min), Configurable TDP (Max), Max Junction Temperature and Tcase. Physical & Manufacturing: Transistor Count, Die Size, Die Count, Foundry and Launch Price. Naming & Aliases: Normalized Name, SKU, Processor Number and Part Number.

Processors that use the same FCPGA946 socket as the Intel Core i7-4940MX Extreme Edition and have the closest multi-core scores in the Feex database include Intel Core i7-4930MX Extreme Edition, Intel Core i7-4910MQ, Intel Core i7-4900MQ, Intel Core i7-4810MQ and Intel Core i7-4800MQ.