Intel Atom E620

The Intel Atom E620 is a single-core, dual-thread mobile processor from the “Tunnel Creek” family, built on Intel’s 45 nm process node with 47 million transistors on a 26 mm² die. As an end-of-life product released in September 2010, it occupies a distinctive position in the benchmark database: its average benchmark score is zero, and it sits at the 50th percentile among all CPUs, indicating that it is neither an outlier for poor performance nor a leader in any measurable way. The absence of any rival entries in the immediate comparison set, combined with the lack of benchmark scores, means that the data presents the E620 as a baseline reference point rather than a competitive participant.

Benchmark Performance

The most striking aspect of the benchmark data for the Intel Atom E620 is that its average benchmark score is recorded as exactly zero. This is not a misleading figure; it reflects that the processor has no accumulated performance metrics in the database, likely due to its extremely low power envelope and historical market positioning. The 50th percentile ranking among all CPUs is thus a statistical artifact rather than a performance claim — it places the chip in the median of the database’s distribution, but with zero scores contributing to that position, it cannot be interpreted as “average performance.” For context, the processor’s base clock is 600 MHz, with no boost clock available, and it features just one core and two threads. In the absence of direct rival scores or delta percentages, the data suggests that the E620 was designed for tasks where raw performance was secondary to power efficiency. Benchmark results indicate that any workload requiring substantial compute throughput would see negligible progress, as the chip’s clock speed and core count are minimal. The percentile field, while numerically at 50%, should not be mistaken for competitiveness — it is a placeholder in a dataset where the E620 has no measured output.

Single-Thread vs Multi-Thread Behavior

The Intel Atom E620’s configuration — one physical core with two threads via Hyper-Threading — defines its behavior across single-threaded and multi-threaded workloads. In single-threaded tasks, the processor operates at its base clock of 600 MHz, which is the only clock speed available since no boost clock exists. This means that any application relying on a single thread will be limited by that 600 MHz ceiling, which is exceptionally low by modern standards. The dual threads allow the single core to handle two instruction streams concurrently, but this does not increase throughput for a single task; instead, it improves responsiveness when multiple lightweight processes are active. Multi-threaded behavior, therefore, is not about scaling across cores — there is only one — but about time-slicing between threads. For real workloads, this split means that the E620 can manage basic input/output operations or background tasks without stalling, but any compute-intensive thread will dominate the single core. The lack of an L3 cache, with only 64 KB of L1 and 512 KB of L2 per core, further constrains multi-threaded efficiency, as data sharing between threads must occur through the limited L2. In practice, the data suggests that the E620 is suited to embedded or low-power scenarios where workloads are intermittent and short-lived, rather than sustained parallel processing.

Power and Thermals

The Intel Atom E620 carries a thermal design power (TDP) of just 3 watts, which places it in the ultra-low-power class of processors. This TDP figure is the defining characteristic of the chip, as it dictates the entire thermal and cooling strategy. A 3-watt TDP implies that a passive cooling solution, such as a small heatsink or even a thermally conductive chassis, is sufficient to maintain operating temperatures; there is no requirement for an active fan in most deployments. The processor’s architecture, codenamed Tunnel Creek, and its 45 nm process node contribute to this efficiency, with 47 million transistors packed into a 26 mm² die. The integrated graphics are listed as “On certain motherboards (Chipset feature),” which means that the graphics processing is not integrated into the CPU die itself but relies on the chipset — this separation helps keep the CPU’s power draw minimal. For cooling, any capable air cooler designed for low-wattage embedded systems would be overkill; the 3-watt TDP suggests that the thermal solution is trivial. The data does not provide specific cooling recommendations, but the TDP class clearly indicates that the E620 generates negligible heat, making it suitable for fanless designs in compact or industrial settings. The absence of a boost clock further ensures that power consumption remains constant under load, as the processor cannot dynamically increase its clock speed to draw more power.

How It Compares

The nearestRivals array for the Intel Atom E620 is empty, which means the benchmark database has no directly comparable processors with recorded scores for this chip. This absence is notable for several reasons. First, it suggests that the E620’s performance tier is so unique — or so far removed from mainstream CPUs — that no other processor in the database shares a similar benchmark profile. Second, without rival scores or deltaPct values, any comparison must rely on the absolute specifications from the FACT PACK. The E620’s 600 MHz base clock, single core, and 3-watt TDP place it in a category populated by other low-power embedded parts, but the database does not provide those entries for a quantitative analysis. The 50th percentile ranking, while it exists, cannot be used to position the chip against peers because it is derived from an average benchmark score of zero. Thus, the data indicates that the E620 is a standalone reference point, likely included in the database for completeness rather than for competitive benchmarking. Users seeking a performance comparison would need to look at other Atom-family processors from the same era, but the FACT PACK does not supply those details.

FAQ

Q: What is the processor’s clock speed?

A: The base clock is 600.00 MHz, and there is no boost clock available.

Q: How many cores and threads does the Intel Atom E620 have?

A: It has one core and two threads, with a 64 KB L1 cache and 512 KB L2 cache per core.

Q: What is the thermal design power of this chip?

A: The TDP is 3 watts, indicating ultra-low power consumption.

Q: Does the processor support ECC memory?

A: No, ECC memory is not supported; it supports DDR2 memory.

Q: What is the production status of the Intel Atom E620?

A: The production status is end-of-life, and it was released on September 13, 2010.

Q: Is there an integrated GPU on the processor?

A: Integrated graphics are available on certain motherboards as a chipset feature, not on the CPU die itself.

Q: What socket does the E620 use?

A: It uses the Intel BGA 676 socket.