Intel® Core™ i7-640M

The Intel Core i7-640M is a laptop processor with 2 cores and 4 threads (32 nm process). It launched in Sep 2010. Clocks run from 2.8 GHz base to 3.46 GHz boost. A 4-MB L3 cache backs the cores (2.3 MB per core). The chip drops into the FCBGA1288 socket and exposes PCIe 2.0 (16 lanes). Rated TDP is 35 W.

The Intel Core i7-640M scores 1,361 in single-core performance and 2,097 in multi-core performance (PassMark CPU Mark ratings). From those two ratings Feex computes 1,689 for overall performance, 3,268 for productivity performance, 3,603 for creator performance, 1,953 for engineering performance and 4,607 for gaming performance. Its multi-core throughput works out to 1,049 per core, 524 per thread and 60 per watt. Its computed efficiency index is 286. Its performance index is 21, so its overall performance is 79% 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 i7-640M scores 8,199 in integer math, 3,617 in floating-point math, 32,473 in compression, 765 in cryptography, 178 in physics simulation, 939 in vector SIMD, 10 in the prime sieve and 4,327 in sorting. Higher is better. Compared with the Intel Core i5-12400, it is 86% below in integer math, 92% below in floating-point math, 86% below in compression, 93% below in cryptography, 84% below in physics simulation, 94% below in vector SIMD, 85% below in the prime sieve and 81% 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 i7-640M has 2 physical cores and runs 4 logical threads. It does not use a hybrid performance and efficiency core layout. It runs 2 threads per core. It runs at a base clock of 2.80 GHz and boosts up to 3.46 GHz.

The Intel Core i7-640M is a laptop processor, belongs to the Intel Core i7 family and is manufactured on a 32 nm process. It launched in Sep 2010.

The Intel Core i7-640M has 128 KB of L1 cache, 512 KB of L2 cache and 4 MB of L3 cache. That adds up to about 4.6 MB of cache, or 2.31 MB per core. Each core has 256 KB of private L2 cache.

The Intel Core i7-640M has a 3-level cache hierarchy: L1 at 128 KB, L2 at 512 KB and L3 at 4 MB. L3 is the largest level and makes up about 86% of the cache listed here.

The Intel Core i7-640M includes integrated graphics (HD Graphics) and clocks the graphics up to 0.77 GHz.

The Intel Core i7-640M uses the FCBGA1288 socket, supports PCI Express 2.0 and provides up to 16 PCIe lanes.

The Intel Core i7-640M has a rated TDP of 35 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.

Feex has recorded 51% of the specifications it tracks for the Intel Core i7-640M. Values Feex does not hold are shown as "Not recorded" rather than estimated.

Not recorded: Core Configuration: Efficiency Cores, All-Core Boost and Unlocked Multiplier. Architecture & Generation: Codename, ISA Family and Market Status. Cache: L4 Cache. Memory Support: Max Memory, Memory Channels, Memory Bandwidth, Memory Types, DDR5 Support, DDR4 Support, LPDDR Support, ECC Memory and Max Memory Speed. Graphics: 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: SKU, Model Number, Processor Number and Part Number.

Processors that use the same FCBGA1288 socket as the Intel Core i7-640M and have the closest multi-core scores in the Feex database include Intel Core i7-610E, Intel Core i5-580M, Intel Core i7-620M, Intel Core i5-560M and Intel Core i5-540M.