Core i7-2640M

Details and Benchmarks for Intel Core i7-2640M

Sysbuilds Alpha Stage!

Please take all results with a big grain of salt. Sysbuilds is in alpha stage at the moment which can lead to wrong data, strange counting errors, silly results and more. This site is under active development.

Benchmark Results

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

Overall Score

Overall score for Core i7-2640M based on all benchmark results gathered. Look at this like a meta score, you will find more specific workload ratings below.

4,415 Rank: 1380
Rank Name Score Visual
1376 Celeron G1620 4,418
+0.1%
1377 Pentium G2010 4,417
+0%
1378 Core i7-3540M 4,416
+0%
1379 Xeon W3540 4,416
+0%
1380 Core i7-2640M 4,415
1381 Xeon E5530 4,413
+-0%
1382 Core i7-2677M 4,412
-0.1%
1383 Core i5-2435M 4,412
-0.1%
1384 Phenom II X4 955 4,411
-0.1%
1385 Core i7-3689Y 4,411
-0.1%

View full ranking →

Multicore Score

Multicore performance score for Core i7-2640M based on multi-threaded benchmark results.

4,314 Rank: 1712
Rank Name Score Visual
1708 Core 2 Duo P9700 4,316
+0%
1709 A6-3400M 4,316
+0%
1710 Pentium G645T 4,316
+0%
1711 Atom x5-Z8500 4,315
+0%
1712 Core i7-2640M 4,314
1713 Core i5-2415M 4,314
+0%
1714 Celeron 2957U 4,314
+0%
1715 Core M 5Y71 4,313
+-0%
1716 Athlon II X4 631 4,313
+-0%
1717 Pentium 3805U 4,313
+-0%

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Singlecore Score

Single-core performance score for Core i7-2640M based on single-threaded benchmark results.

4,483 Rank: 1302
Rank Name Score Visual
1298 Core i5-2430M 4,493
+0.2%
1299 A9-9430 4,493
+0.2%
1300 Core i5-670 4,486
+0.1%
1301 Phenom II X4 970 4,484
+0%
1302 Core i7-2640M 4,483
1303 Xeon W3520 4,481
+-0%
1304 Xeon E5-2608L v4 4,480
-0.1%
1305 Celeron 3965U 4,480
-0.1%
1306 Phenom II X4 975 4,479
-0.1%
1307 Pentium J6426 4,479
-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 Core i7-2640M based on integer math, floating point math, and prime number computation benchmarks.

4,530 Rank: 1302
Rank Name Score Visual
1298 Core i3-7100U 4,531
+0%
1299 Core i7-3537U 4,531
+0%
1300 Xeon X3220 4,531
+0%
1301 Core i5-2390T 4,531
+0%
1302 Core i7-2640M 4,530
1303 Core i7-2620M 4,530
+0%
1304 Phenom II X4 840 4,530
+0%
1305 Core i5-5250U 4,530
+0%
1306 A10-5745M 4,530
+0%
1307 Core M3-7Y32 4,529
+-0%

View full ranking →

Data Processing

Aggregated score for Core i7-2640M based on data encryption, data compression, and string sorting benchmarks.

4,515 Rank: 1240
Rank Name Score Visual
1236 Athlon II X4 620 4,516
+0%
1237 Xeon E3-1220L v2 4,516
+0%
1238 Athlon II X4 610e 4,516
+0%
1239 Phenom II X4 900e 4,516
+0%
1240 Core i7-2640M 4,515
1241 Core i5-6200U 4,515
+0%
1242 Core i3-2120 4,515
+0%
1243 Athlon II X3 460 4,515
+0%
1244 Phenom II X4 810 4,515
+0%
1245 Xeon E5420 4,515
+0%

View full ranking →

Physics & Compute

Aggregated score for Core i7-2640M based on physics simulation and extended instruction set (SSE/AVX) benchmarks.

4,535 Rank: 1190
Rank Name Score Visual
1186 Core i5-2390T 4,536
+0%
1187 Core i7-8500Y 4,536
+0%
1188 Core i5-L16G7 4,536
+0%
1189 Pentium G4500 4,535
+0%
1190 Core i7-2640M 4,535
1191 Core i7-2620M 4,535
+0%
1192 Ryzen 3 2200U 4,535
+0%
1193 A8-9600 4,535
+0%
1194 Core i3-2105 4,535
+0%
1195 Core i5-3210M 4,535
+0%

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Core i7-2640M Details

As of March 2026, the Intel Core i7-2640M remains a noteworthy example of mobile processor design from the early 2010s, built on the Sandy Bridge microarchitecture at a 32 nm process node. Though aged by modern standards—released in 2011—it still holds relevance for legacy systems and budget computing due to its balanced performance and integrated graphics. The processor features a dual-core design with four threads, enabled by Intel's Hyper-Threading technology, and operates at a base frequency of 2.8 GHz, capable of boosting up to 3.5 GHz on a single core and 3.3 GHz on two cores. This makes it particularly effective for single-threaded applications, where it performs strongly relative to its peers. Its 4 MiB L3 cache and 0.5 MiB L2 cache contribute to efficient data handling, while the 64-bit x86-64 architecture ensures compatibility with modern operating systems and software. With a TDP of 35 W and support for DDR3-1333 and DDR3-1066 memory, the i7-2640M strikes a power-efficient balance, making it suitable for mid-range laptops of its era.

The integrated HD Graphics 3000 GPU, with 12 execution units and a base frequency of 650 MHz (up to 1.3 GHz in burst mode), delivers adequate performance for basic multimedia tasks and light gaming. It supports up to two displays and includes Intel’s proprietary technologies such as Quick Sync Video and Intel Identity Protection, enhancing multimedia and security features. Despite lacking modern instruction sets like AVX-512 or newer encryption extensions, it includes a robust set of legacy capabilities, including AES-NI, AVX, and Intel VT-x, ensuring compatibility with enterprise and virtualization environments. The processor’s socket, Socket G2 (rPGA988B), and its FCBGA-1023 package reflect the mobile design constraints of its time, prioritizing compactness and thermal efficiency.

In benchmark testing, the Core i7-2640M achieves a multicore score of 4,314, placing it at #1712 among 2060 processors, and a single-core score of 4,483, ranking #1302. Its overall score of 4,415 positions it at #1380, slightly ahead of some contemporary low-power CPUs but far behind modern high-end processors. Compared to the top 50 processors in 2026, it lags significantly—no single-core or multicore leader matches its performance, with scores exceeding 8,000 in both categories. Still, it outperforms many of its contemporaries, including the Core i5-2435M and Pentium G4500, highlighting its strong standing in the early Sandy Bridge era. Its performance in tasks like number crunching and data processing aligns with mid-tier mobile CPUs of its time, but it is now considered outdated for demanding workloads.

Overall, the Core i7-2640M is best suited for legacy systems, entry-level business laptops, or users requiring reliable performance without a discrete GPU. While it lacks the power of modern processors, its efficiency, integrated features, and widespread support make it a durable choice for light productivity, web browsing, and office applications. For users seeking high performance, it is no longer competitive, but for cost-effective, low-power computing, it remains a viable option in the right context.
Frequently Compared

Intel Xeon E5-2673 v4 3 views

Intel Pentium G4400T 3 views

AMD Ryzen 3 PRO 2200GE 1 view

AMD Ryzen 9 PRO 3900 1 view

AMD Ryzen 5 PRO 3500U 1 view

Intel Xeon Silver 4214 1 view

Intel Xeon Silver 4116T 1 view

Intel Xeon Silver 4112 1 view

Intel Xeon Silver 4110 1 view

Intel Xeon Silver 4108 1 view

Intel Core i7-2640M

Main Specifications

Designer: Intel
Name: Core i7-2640M
Family: Core
Series: i7-2000
Model Number: i7-2640M
Cores: 2
Threads: 4
Base Frequency: 2800 MHz
Turbo Frequency (1 core): 3500 MHz
Turbo Frequency (2 cores): 3300 MHz
Clock Multiplier: 28x (locked)
Microarchitecture: Sandy Bridge
Core Name: Sandy Bridge M
Core Family: 6
Core Model: 42
Socket: Socket
Package: FCBGA-1023 and rPGA988B
Chipset: Cougar
Target Segment: Mobile
Max CPUs: 1
TDP: 35 W
Release Price: $346.00

Cache Specifications

L1 Cache: 128 KiB
L1 Instruction Cache: 64 KiB (8-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: DDR3-1333 and DDR3-1066
Memory Channels: 2
Maximum Memory: 16 GB
Maximum Bandwidth: 19.87 GB/s
ECC Support: No

PCI-Express Specifications

PCIe Revision: 2.0
PCIe Lanes: 16
PCIe Configuration: 1x16, 2x8, 1x8+2x4

Integrated Graphics

GPU: HD Graphics 3000
GPU Designer: Intel
GPU Max Frequency: 1300 MHz
Execution Units: 12

Physical Specifications

Process: 32 nm
Die Area: 149 mm²
Transistor Count: 0.62 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 AVX AES CLMUL x86-16 x86-32 x86-64 Real Protected SMM FPU NX HT TBT 2.0 EIST TXT vPro VT-x VT-d EPT IPT Flex Memory MWT ATT FMA
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