Intel Core i7-640LM

Details and Benchmarks for Intel Intel Core i7-640LM

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Benchmark Results

Combined benchmark scores based on multiple data points, giving a quick overview of this processor's performance.

Overall Score

Overall score for Intel Core i7-640LM based on all benchmark results gathered. Look at this like a meta score, you will find more specific workload ratings below.

4,159 Rank: 1734
Rank Name Score Visual
1730 A6-3420M 4,163
+0.1%
1731 Athlon II X2 245 4,162
+0.1%
1732 A8-5545M 4,161
+0%
1733 E2-3200 4,161
+0%
1734 Intel Core i7-640LM 4,159
1735 Pentium P6100 4,158
+-0%
1736 Core i3-4012Y 4,158
+-0%
1737 Celeron 3965Y 4,156
-0.1%
1738 E2-9010 4,156
-0.1%
1739 Intel Core i5-520M 4,153
-0.1%

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Multicore Score

Multicore performance score for Intel Core i7-640LM based on multi-threaded benchmark results.

4,099 Rank: 2047
Rank Name Score Visual
2043 Phenom 9650 4,119
+0.5%
2044 Core 2 Quad Q8300 4,112
+0.3%
2045 Athlon II X2 240 4,111
+0.3%
2046 Core 2 Duo E6550 4,100
+0%
2047 Intel Core i7-640LM 4,099
2048 Celeron 887 4,094
-0.1%
2049 Core 2 Quad Q6600 4,094
-0.1%
2050 A4-4300M 4,086
-0.3%
2051 Core 2 Duo E4500 4,062
-0.9%
2052 Intel Core i7-640UM 4,050
-1.2%

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Singlecore Score

Single-core performance score for Intel Core i7-640LM based on single-threaded benchmark results.

4,199 Rank: 1576
Rank Name Score Visual
1572 Core 2 Duo E7400 4,201
+0%
1573 A8-3870K 4,200
+0%
1574 Phenom II X3 B75 4,200
+0%
1575 Pentium Silver N5000 4,199
+0%
1576 Intel Core i7-640LM 4,199
1577 Athlon II X2 B24 4,199
+0%
1578 Pentium E5500 4,199
+0%
1579 Celeron G540 4,196
-0.1%
1580 Pentium B960 4,195
-0.1%
1581 Celeron J4005 4,195
-0.1%

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Workload Scores

Performance scores grouped by workload type, normalized and aggregated from multiple raw benchmark results.

Number Crunching

Aggregated score for Intel Core i7-640LM based on integer math, floating point math, and prime number computation benchmarks.

-- Rank: --

Number Crunching score not yet available.

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Data Processing

Aggregated score for Intel Core i7-640LM based on data encryption, data compression, and string sorting benchmarks.

-- Rank: --

Data Processing score not yet available.

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Physics & Compute

Aggregated score for Intel Core i7-640LM based on physics simulation and extended instruction set (SSE/AVX) benchmarks.

-- Rank: --

Physics & Compute score not yet available.

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Intel Core i7-640LM Details

The Intel Core i7-640LM stands out as a mobile processor designed for high-performance laptops, offering a blend of efficiency and processing power that was competitive in its era. Released during a time when mobile computing was rapidly evolving, the i7-640LM is built on Intel's Westmere microarchitecture, a refinement of the Nehalem design, and fabricated on a 32 nm process. Despite its age, the processor remains relevant for understanding the trajectory of Intel’s mobile offerings, particularly in the context of integrated graphics and power efficiency. As of March 2026, it is considered a legacy device, no longer in mainstream use but still notable for its role in the transition to modern multi-core mobile processors.

This dual-core CPU features four threads through Intel's Hyper-Threading technology, allowing it to handle multiple tasks simultaneously. It operates at a base frequency of 2.13 GHz, with a maximum turbo frequency of 2.93 GHz, making it suitable for demanding workloads when under load. The processor includes 4 MiB of L3 cache and 0.5 MiB of L2 cache, with each core having 0.0625 MiB of L1 cache, contributing to faster data access and improved performance. With a TDP of just 25 W, the i7-640LM is optimized for power efficiency, making it ideal for mobile systems where thermal constraints are critical.

The integrated HD Graphics (Ironlake) GPU provides basic multimedia and light gaming capabilities, featuring 12 execution units and a base frequency of 266 MHz, with a burst frequency of 566 MHz. It supports up to two display outputs and is capable of handling standard video playback and casual applications, though it lacks the performance needed for modern gaming or professional graphics work. Memory support includes DDR3-1066, with a maximum capacity of 8 GB and a peak bandwidth of 15.88 GiB/s across two channels.

In benchmark testing, the i7-640LM achieves an overall score of 4159, placing it at #1734 among 2060 processors. Its single-core score of 4199 ranks it at #1575, indicating solid performance in tasks that rely on single-threaded optimization. However, its multicore score of 4099 places it at #2047, highlighting a performance gap in multi-threaded applications compared to more modern CPUs. This disparity is most evident when compared to current leaders like the Ryzen Threadripper PRO 9995WX or Core Ultra 9 285K, which achieve scores over twice as high.

Despite its limitations, the i7-640LM was a capable processor for its time, particularly in business and productivity-focused laptops. Its inclusion of features like Intel VT-x, VT-d, and Intel vPro technology made it a strong choice for enterprise environments, while its support for ECC memory and Trusted Execution Technology added security and reliability. While it may not compete with today’s top-tier CPUs, it remains a testament to Intel’s efforts in delivering efficient, multi-threaded performance in mobile computing during the early 2010s.
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Intel Intel Core i7-640LM

Main Specifications

Designer: Intel
Name: Intel Core i7-640LM
Family: Core
Series: i7-600
Model Number: i7-640LM
Cores: 2
Threads: 4
Base Frequency: 2133.33 MHz
Turbo Frequency (1 core): 2933.33 MHz
Turbo Frequency (2 cores): 2666.66 MHz
Clock Multiplier: 16x (locked)
Microarchitecture: Westmere
Core Name: Arrandale
Core Family: 6
Core Model: 37
Package: BGA-1288
Chipset: Ibex
Target Segment: Mobile
Max CPUs: 1
TDP: 25 W
Release Price: $332.00

Cache Specifications

L1 Cache: 128 KiB
L1 Instruction Cache: 64 KiB (4-way set associative)
L1 Data Cache: 64 KiB (8-way set associative)
L2 Cache: 0.5 MiB (8-way set associative)
L3 Cache: 4 MiB (16-way set associative)

Memory Specifications

Supported Memory Type: DDR3-1066
Memory Channels: 2
Maximum Memory: 8 GB
Maximum Bandwidth: 15.88 GB/s
ECC Support: No

Integrated Graphics

GPU: HD
GPU Designer: Intel
GPU Max Frequency: 566 MHz
Execution Units: 12

Physical Specifications

Process: 32 nm
Die Area: 81 mm²
Transistor Count: 0.38 billion
Manufacturer: Intel
Technology: CMOS
Word Size: 64-bit
ISA: x86-64 (x86)

CPU Features

MMX EMMX SSE SSE2 SSE3 SSSE3 SSE4.1 SSE4.2 AES x86-16 x86-32 x86-64 Real Protected SMM FPU NX HT EIST TXT vPro VT-x VT-d EPT SHA Flex Memory TBT 1.0 FMA BPT
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