Feex·CPU
Intel · Core i7 · Desktop

Intel® Core™ i7-2655LE

The Intel Core i7-2655LE is a desktop processor released in Feb 2011, built on the Sandy Bridge architecture using a 32 nm process. It has 2 cores and 4 threads, a base clock of 2.20 GHz, a maximum boost of 2.90 GHz, 4 MB of L3 cache, a 25 W TDP and the FCBGA1023 socket.

IntelCore i7DesktopFCBGA1023Sandy BridgeTDP 25 W32 nmIntegrated graphics2011
Cores
2
Threads
4
Boost Clock
2.9 GHz
Base Clock
2.2 GHz
Architecture
Sandy Bridge
Socket
FCBGA1023
Process Node
32 nm
TDP
25 W
Core layout
PP
2 Performance 4 Threads

Best for

Thin & light laptops and efficient desktopsMini PCs and graphics-included builds

Overview

The Intel Core i7-2655LE is a desktop processor with 2 cores and 4 threads, built on the Sandy Bridge architecture (32 nm process). It launched in Feb 2011. Clocks run from 2.2 GHz base to 2.9 GHz boost. A 4-MB L3 cache backs the cores (2.3 MB per core). The chip drops into the FCBGA1023 socket and exposes PCIe 2.0 (16 lanes). Rated TDP is 25 W.

Performance

Overall CPU Performance computed
1,569
6% of reference
Reference ceiling 25,000
Multi-Core Performance PassMark rating
1,999
2% of reference
Reference ceiling 120,000
Single-Core Performance PassMark rating
1,231
22% of reference
Reference ceiling 5,500
Productivity Performance computed
3,023
2% of reference
Reference ceiling 160,000
Creator Performance computed
3,315
2% of reference
Reference ceiling 140,000
Engineering Performance computed
1,862
1% of reference
Reference ceiling 200,000
Gaming Performance computed
4,193
19% of reference
Reference ceiling 22,000
Performance per Core computed
1,000
5% of reference
Reference ceiling 21,053
Performance per Thread computed
500
5% of reference
Reference ceiling 10,527
Performance per Watt computed
80
4% of reference
Reference ceiling 2,000
Efficiency Index computed
314
8% of reference
Reference ceiling 4,000
Performance index computed
19
Intel Core i5-12400 = 100

The Intel Core i7-2655LE scores 1,231 in single-core performance and 1,999 in multi-core performance (PassMark CPU Mark ratings). From those two ratings Feex computes 1,569 for overall performance, 3,023 for productivity performance, 3,315 for creator performance, 1,862 for engineering performance and 4,193 for gaming performance. Its multi-core throughput works out to 1,000 per core, 500 per thread and 80 per watt. Its computed efficiency index is 314. Its performance index is 19, so its overall performance is 81% 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.

How these scores are computed

Single-core and multi-core performance are PassMark CPU Mark single-thread and multi-thread ratings. Every other figure on this page's performance section is computed by Feex from those two ratings plus core count, thread count and TDP, so it is a derived value and not a separate benchmark run.

  • Overall performance is the geometric mean of the two ratings: the square root of single-core times multi-core.
  • Productivity performance is 0.65 times multi-core plus 1.4 times single-core.
  • Creator performance is 0.55 times multi-core plus 1.8 times single-core.
  • Engineering performance is multi-core times the smaller of 1.4 and (0.9 plus cores divided by 64).
  • Gaming performance is 3 times single-core plus 0.25 times multi-core.
  • Performance per core, per thread and per watt divide the multi-core rating by physical cores, logical threads and TDP in watts.
  • The efficiency index is the square root of single-core times multi-core, divided by the square root of TDP.
  • The performance index is overall performance divided by the overall performance of the Intel Core i5-12400 (8,069), times 100.

Workload Benchmarks

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.

Integer Math Throughput
7,707
1% of reference
Reference ceiling 617,811
87% below the Intel Core i5-12400 (58,893)
Raw integer arithmetic throughput across cores.
Floating-Point Math
2,804
0% of reference
Reference ceiling 600,000
94% below the Intel Core i5-12400 (45,899)
Heavy floating-point math, mixed precision.
Compression Performance
33,454
1% of reference
Reference ceiling 2,309,868
85% below the Intel Core i5-12400 (228,054)
Throughput on lossless compression workloads.
Cryptography Performance
557
0% of reference
Reference ceiling 137,106
95% below the Intel Core i5-12400 (11,489)
Symmetric encryption and hashing throughput.
Physics Simulation
245
2% of reference
Reference ceiling 12,291
78% below the Intel Core i5-12400 (1,090)
Iterative physics & rigid-body simulation.
Vector / SIMD Throughput
1,447
1% of reference
Reference ceiling 172,975
91% below the Intel Core i5-12400 (15,509)
Wide-vector SIMD intrinsics performance.
Prime Sieve
12
1% of reference
Reference ceiling 1,067
82% below the Intel Core i5-12400 (67)
Searching for prime numbers (branch-heavy work).
Sort Performance
5,076
2% of reference
Reference ceiling 260,323
78% below the Intel Core i5-12400 (22,652)
Random string sorting throughput.

In the individual workload tests the Intel Core i7-2655LE scores 7,707 in integer math, 2,804 in floating-point math, 33,454 in compression, 557 in cryptography, 245 in physics simulation, 1,447 in vector SIMD, 12 in the prime sieve and 5,076 in sorting. Higher is better. Compared with the Intel Core i5-12400, it is 87% below in integer math, 94% below in floating-point math, 85% below in compression, 95% below in cryptography, 78% below in physics simulation, 91% below in vector SIMD, 82% below in the prime sieve and 78% 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.

Core Configuration

Cores
2
Threads
4
Performance Cores
2
Threads per Core
2
Hybrid Architecture
No
Base Clock
2.2 GHz
Boost Clock
2.9 GHz

The Intel Core i7-2655LE 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 2.20 GHz and boosts up to 2.90 GHz.

Architecture & Generation

Manufacturer
Intel
Family
Core i7
Segment
Desktop
Generation
Not recorded
Architecture
Sandy Bridge
Codename
Sandy Bridge
Process Node
32 nm
Lithography
32 nm
Release Date
Feb 2011

The Intel Core i7-2655LE is a desktop processor, belongs to the Intel Core i7 family, uses the Sandy Bridge architecture, carries the codename Sandy Bridge and is manufactured on a 32 nm process. It launched in Feb 2011.

Cache

L1 Cache (Total)
128 KB
L2 Cache (Total)
512 KB
L2 Cache (per Core)
256 KB
L3 Cache
4 MB
Cache per Core
2.3 MB
Total Cache
4.6 MB

The Intel Core i7-2655LE 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.

Cache Hierarchy

L1L2L3
L1 128 KBL2 512 KBL3 4 MB

The Intel Core i7-2655LE 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.

Graphics

Integrated Graphics
Yes
Graphics Model
HD 3000
Graphics Base Clock
650 MHz
Graphics Max Clock
1.0 GHz

The Intel Core i7-2655LE includes integrated graphics (HD 3000) and clocks the graphics up to 1.00 GHz.

Platform & Compatibility

Socket
FCBGA1023
PCIe Generation
2.0
PCIe Lanes
16

The Intel Core i7-2655LE uses the FCBGA1023 socket, supports PCI Express 2.0 and provides up to 16 PCIe lanes.

Power & Thermals

TDP
25 W

The Intel Core i7-2655LE has a rated TDP of 25 W.

Platform Capabilities

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.

Instruction Sets

0 supported
Not recorded
AES-NIAMXAVX-512AVX2AVXAVX-VNNI

Security and Reliability

0 supported
Not recorded
AES-NIControl-flow Enforcement (CET)Execute Disable (NX)Boot GuardHardware RNGHardware Shield

Virtualization

0 supported
Not recorded
Extended Page Tables (EPT)VT-d (DMA Remapping)VT-x (Hardware Virtualization)VT-x with EPTIOMMUSecond-Level Address Translation

OS Compatibility

0 supported
Not supported
Windows 11 eligible

Feex has no record for AES-NI, AMX, AVX-512, AVX2, AVX and AVX-VNNI, which is different from being unsupported.

Feex has no record for AES-NI, Control-flow Enforcement (CET), Execute Disable (NX), Boot Guard, Hardware RNG and Hardware Shield, which is different from being unsupported.

Feex has no record for Extended Page Tables (EPT), VT-d (DMA Remapping), VT-x (Hardware Virtualization), VT-x with EPT, IOMMU and Second-Level Address Translation, which is different from being unsupported.

Feex records these as not true for the Intel Core i7-2655LE: Windows 11 eligible.

Naming & Aliases

Display Name
Intel® Core™ i7-2655LE
Normalized Name
Intel® Core™ i7-2655LE
Product line brand
Core

Real-world compute in the Feex fleet

No Feex fleet machines with the Intel Core i7-2655LE have reported compute telemetry yet, so real-world compute for this processor is not recorded.

How fleet compute is measured · Fleet compute leaderboard · JSON

Data Coverage

Feex has recorded 54% of the specifications it tracks for the Intel Core i7-2655LE. 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: 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.

Common questions

How many cores and threads does the Intel Core i7-2655LE have?

The Intel Core i7-2655LE has 2 cores and 4 threads.

What architecture does the Intel Core i7-2655LE use?

The Intel Core i7-2655LE is built on the Sandy Bridge architecture on a 32 nm process.

Does the Intel Core i7-2655LE have integrated graphics?

Yes. The Intel Core i7-2655LE includes integrated graphics: HD 3000.

What socket does the Intel Core i7-2655LE use?

The Intel Core i7-2655LE uses the FCBGA1023 socket.

How fast does the Intel Core i7-2655LE run?

The Intel Core i7-2655LE can boost up to 2.9 GHz, with a 2.2 GHz base clock.

What is the TDP of the Intel Core i7-2655LE?

The Intel Core i7-2655LE has a TDP of 25 W.

How does the Intel Core i7-2655LE perform?

In the Feex normalized performance dataset, the Intel Core i7-2655LE scores 1,999 multi-core and 1,231 single-core.

What is the Intel Core i7-2655LE best for?

Based on its specifications, the Intel Core i7-2655LE is well suited for Thin & light laptops and efficient desktops, Mini PCs and graphics-included builds.

How much cache does the Intel Core i7-2655LE have?

The Intel Core i7-2655LE has 128 KB of L1 cache, 512 KB of L2 cache and 4 MB of L3 cache.

How does the Intel Core i7-2655LE compare with the Intel Core i5-12400?

The Intel Core i7-2655LE has a computed performance index of 19, which is 81% below the Intel Core i5-12400 (index 100). The index is derived from the single-core and multi-core ratings.