Intel Core i7-620LM

The Intel Core i7-620LM is a 2-core, 4-thread mobile processor from Intel's Arrandale family, built on a 32nm process. It operates at a base clock of 2000 MHz and a boost clock of 2.80 GHz, with a 25W TDP that suits compact laptops. Its average benchmark score of 438 places it in the 6th percentile of all CPUs, indicating a bottom-tier performance level. At launch, its MSRP was $300. This analysis draws exclusively from the provided benchmark data and specifications.

How It Compares

Against the Intel Core i3-2370M, the i7-620LM posts an average benchmark score of 438 versus 437, a 0.2% advantage. This is essentially a statistical tie, placing the two processors in the same performance class. The delta is negligible, so users upgrading from one to the other would see no meaningful difference in everyday tasks.

The Intel Pentium 3825U sits slightly ahead, with an average score of 441 compared to the i7-620LM's 438, a 0.6% deficit. This gap is small but consistent across the tested workloads, suggesting the Pentium holds a marginal edge in overall throughput. Still, the two chips are close enough that real-world differences would be imperceptible.

The Intel Xeon E5504 scores 435 on average, giving the i7-620LM a 0.7% lead. Despite being a Xeon-branded part, the E5504 is also an older architecture, and the i7-620LM's slightly higher score indicates comparable multi-threaded capability in the benchmarks measured.

Similarly, the Intel Core i5-2467M also averages 435, so the i7-620LM is 0.7% higher. The i5-2467M is a low-voltage dual-core, and the i7-620LM edges it out in aggregate performance. All four rivals fall within a 6-point band (435–441), underscoring that the i7-620LM occupies a very narrow performance niche.

Who Should Consider It

Given its 6th percentile ranking and low absolute scores, the i7-620LM is only suitable for light, single-threaded workloads. Office tasks such as word processing, spreadsheet work, and basic web browsing are within its reach, especially with the 2.80 GHz boost clock. However, the dual-core design with four threads will quickly become a bottleneck in any multitasking scenario that demands sustained CPU activity.

For gaming, the integrated HD Graphics (Ironlake) and the low single-core performance make it unsuitable for any modern title. The Cinebench R23 single-core score of 168 and Geekbench single-core score of 379 are far too low for fluid frame rates, even in older games. Users seeking any gaming capability should look elsewhere.

Content creation workloads—video encoding, 3D rendering, or heavy photo editing—are equally problematic. The Cinebench R23 multicore score of 1195 indicates limited parallel processing headroom. While the four threads help in multi-threaded applications, the absolute throughput is insufficient for professional-grade creation. This CPU is best reserved for a secondary or legacy machine where basic productivity is the sole requirement.

Benchmark Performance

The i7-620LM's average score of 438 sits within a tight cluster of rivals. It is 0.2% higher than the Core i3-2370M (437), 0.6% lower than the Pentium 3825U (441), and 0.7% higher than both the Xeon E5504 (435) and Core i5-2467M (435). These deltas are all under 1%, meaning the i7-620LM delivers essentially identical performance to its nearest competitors.

Looking at individual benchmarks, the Cinebench R23 multicore score of 1195 contrasts sharply with the single-core score of 168, producing a multi-to-single ratio of about 7.1. This indicates that the workload scales well across the two cores and four threads, but the low absolute numbers reveal the CPU's age. In Geekbench, the multicore score of 636 and single-core score of 379 yield a ratio of only 1.68, suggesting that Geekbench's workload is less parallel or that the CPU's thread efficiency is lower in that test.

The Cinebench R20 results follow a similar pattern: 501 multicore and 70 singlecore. The R15 multicore score of 120 further confirms the trend. Across all benchmarks, the i7-620LM consistently lands in the bottom percentile, reinforcing its status as a low-power, low-performance part.

FAQ

Q: Does the Intel Core i7-620LM support ECC memory?

A: No, ECC memory is not supported; the memory support is DDR3 in a dual-channel configuration.

Q: What is the maximum memory bandwidth of this processor?

A: The memory bandwidth is 17.1 GB/s, based on the dual-channel DDR3 interface.

Q: What socket does the i7-620LM use?

A: It uses the Intel BGA 1288 socket, which is a ball-grid array design intended for soldered installation.

Q: Is the multiplier unlocked for overclocking?

A: No, the multiplier is locked, so overclocking is not possible.

Q: What is the production status of this CPU?

A: It is marked as end-of-life, meaning it is no longer in active production.

Q: What integrated graphics does it include?

A: It includes HD Graphics (Ironlake), which is an older integrated GPU solution.

Platform and Compatibility

The i7-620LM is designed for the mobile segment, using the Intel BGA 1288 socket. This socket is soldered, meaning the CPU cannot be upgraded or replaced in a typical laptop. Memory support is limited to DDR3 in a dual-channel configuration, with a peak bandwidth of 17.1 GB/s. The processor also includes PCIe Gen 2 connectivity, which is an older standard but sufficient for its era.

The integrated HD Graphics (Ironlake) provides basic display output but lacks the performance needed for graphics-intensive tasks. The CPU does not support ECC memory, which is typical for consumer mobile parts. Given its end-of-life status and soldered design, the upgrade path is essentially nonexistent; users are locked into whatever system contains this chip.

Single-Thread vs Multi-Thread Behavior

The i7-620LM's benchmark results reveal a distinct split between single-threaded and multi-threaded performance. In Cinebench R23, the single-core score of 168 is extremely low, while the multi-core score of 1195 shows a 7.1x scaling when all threads are engaged. This suggests that the four threads (two cores with Hyper-Threading) provide substantial parallel efficiency in workloads that can utilize them. However, the absolute numbers are so low that even the multi-core result is insufficient for demanding tasks.

In Geekbench, the single-core score of 379 and multi-core score of 636 yield a scaling factor of only 1.68. This lower ratio indicates that Geekbench's workload is less dependent on thread count, or that the CPU's multi-threading efficiency degrades under this particular test. For real-world applications, this means that single-threaded tasks (like basic browsing) will perform better relative to their multi-threaded counterparts, but both are constrained by the chip's overall weakness.

Power and Thermals

The i7-620LM has a TDP of 25 watts, placing it in the low-power category for mobile processors. This low thermal envelope implies that a modest cooling solution—such as a small fan or heatpipe—can adequately manage heat output. The 32nm process node and 382 million transistors contribute to its efficiency, though the architecture is old by modern standards.

Because the TDP is only 25W, the CPU is well-suited for thin-and-light laptops where battery life and thermal management are priorities. The boost clock of 2.80 GHz is achievable within this power budget, but sustained multi-threaded loads may cause the clock to drop to the 2000 MHz base. The low power draw also means that passive cooling might be feasible in some designs, but the integrated graphics and memory controller add to the overall system heat. In summary, the i7-620LM's thermal characteristics align with its low-performance positioning, requiring only basic cooling infrastructure.