Intel Core i5-3339Y

The Intel Core i5-3339Y is an ultra-low-power mobile processor from the Ivy Bridge era, designed for thin-and-light laptops where battery life and thermal silence take priority over raw performance. Its benchmark scores place it in the 7th percentile of all CPUs, which means it sits far below mainstream desktop parts in capability. This is not a processor for demanding workloads; instead, it suits users whose primary needs are basic productivity, web browsing, and media consumption, provided they have realistic expectations about its limits. The data suggests a chip that is adequate for light, single-threaded tasks but struggles under sustained multi-threaded load, making it a niche product for a specific, non-performance-oriented audience.

Who Should Consider It

The i5-3339Y is aimed squarely at users who prioritize portability and passive cooling over computational power. With a Cinebench R23 multi-core score of 1350 and a single-core score of 190, the data indicates that this processor is best suited for office work such as word processing, spreadsheets, and email, where load is intermittent and largely single-threaded. For these tasks, the 2.30 GHz boost clock provides adequate responsiveness for typing and navigating documents without noticeable lag. However, the 2-core/2-thread configuration, combined with a base clock of 1500 MHz, means that modern productivity suites with heavy background processes will push it to its limits quickly.

Gamers should look elsewhere; the processor lacks the multi-threaded muscle for contemporary titles, and the single-core performance is too low for competitive or fast-paced games that rely on high frame rates. Creation workloads, such as video editing or 3D rendering, are effectively out of the question—the Cinebench R15 multi-core score of 136 is a fraction of what mainstream desktop chips produce, indicating render times that would be measured in hours rather than minutes. This is a processor for secondary laptops, travel machines, or basic education devices where the workload is browsing and document editing, and where any heavy task is an exception, not the norm.

Platform and Compatibility

The i5-3339Y uses the Intel BGA 1023 socket, which means it is soldered directly to the motherboard and cannot be upgraded or replaced by the user. This is a critical limitation for anyone considering a long-term investment; the platform is effectively sealed, so the processor’s lifespan is tied to the laptop’s other components. Memory support is limited to dual-channel DDR3, which is an older standard that limits bandwidth compared to modern DDR4 or DDR5, though the chip’s performance ceiling is so low that this is not a bottleneck in practice. The architecture is Ivy Bridge, built on a 22 nm process with 1,400 million transistors in a 160 mm² die, and it supports no ECC memory, which rules out any workstation or server use case.

The upgrade path is nonexistent—not only is the CPU soldered, but the platform itself is from the 2013 era, meaning there are no newer compatible processors that would fit the same socket. PCIe support is not specified in the data, but given the mobile segment and low TDP, the available lanes are likely limited to basic peripherals rather than high-bandwidth GPUs. For anyone building or buying a system today, the data implies a dead-end platform with no future expansion, which reinforces that this chip is only suitable for a fixed, low-intensity role in a device that is expected to be replaced rather than upgraded.

Single-Thread vs Multi-Thread Behavior

The split between single-thread and multi-thread performance is telling. In Cinebench R20, the single-core score is 79, while the multi-core score is 567, which gives a ratio of roughly 7.2x—meaning the multi-core score is not scaling linearly from the single-core result. This is expected for a 2-core/2-thread part with no Hyper-Threading; the multi-threaded score is nearly double the single-threaded score, but the absolute numbers are so low that both are far below modern entry-level chips. In Cinebench R23, the single-core score is 190 and the multi-core score is 1350, a ratio of about 7.1x, confirming that the chip does not benefit from any additional thread scheduling tricks—it simply runs two threads in parallel.

For real workloads, this means that applications which rely on a single thread, such as older software or basic scripting, will see performance roughly equal to the 190 R23 score, which is adequate for text editing but sluggish for complex web pages with heavy JavaScript. Multi-threaded applications, like file compression or batch photo resizing, will use both cores, but the 567 R20 score indicates that even parallel tasks will complete slowly compared to a mainstream quad-core. The data suggests that the processor is balanced between single and multi-threaded performance relative to its own capabilities, but that balance is at such a low absolute level that neither workload type is enjoyable beyond the simplest tasks.

How It Compares

Against the AMD Phenom II X3 710, the i5-3339Y is essentially tied, with an average score of 464 versus 463 for the AMD part, a delta of 0.2% in favor of the Intel chip. This is remarkable because the Phenom II X3 is a desktop processor with three cores, yet the i5-3339Y matches it in aggregate benchmarks, suggesting that the Ivy Bridge architecture’s efficiency per core compensates for the lower core count. In practice, this means the i5-3339Y can handle the same average workload as that older desktop chip, but with far lower power consumption.

The comparison with the AMD Athlon II X3 425 shows a negligible difference, with the Intel part scoring 464 against 465, a delta of -0.2% meaning the Athlon is marginally faster. This is a statistical tie, indicating that the i5-3339Y’s performance is nearly identical to that of a three-core desktop processor from the same era. The implication is that the mobile chip’s low clock speed is offset by its newer architecture, but it does not exceed the older part in any meaningful way.

Against the Intel Celeron G1620, the i5-3339Y scores 464 versus 462, a 0.3% lead. The G1620 is a desktop Celeron with a higher clock speed but older architecture, and the data shows they are effectively interchangeable in average performance. This suggests that the i5-3339Y’s low TDP does not cost it performance relative to a low-end desktop chip, though the Celeron likely runs cooler and is cheaper in a desktop context.

Finally, the Intel Celeron G1820T scores 467 versus the i5-3339Y’s 464, a delta of -0.7% meaning the Celeron is slightly faster. The G1820T is also a low-power part, and the data indicates the i5-3339Y is not the top performer in its class, but the difference is within noise. Overall, the i5-3339Y sits in a tight cluster of low-performance CPUs, all within 1% of each other, meaning no rival offers a meaningful performance advantage.

Power and Thermals

The TDP is rated at 13 watts, which is exceptionally low for a processor—far below typical desktop chips that range from 35 to 125 watts. This low TDP class implies that the i5-3339Y can be cooled by a passive heatsink or a very small, quiet fan, making it ideal for fanless designs or ultra-thin laptops where thermal dissipation is limited. The 22 nm process node helps achieve this efficiency, and the data suggests that thermals are a non-issue; the chip will not throttle under load unless the laptop’s cooling solution is severely compromised.

For cooling tier, the 13-watt TDP means that a capable air cooler, even a small low-profile one, is more than sufficient. Users do not need to worry about liquid cooling or large heatsinks, and the processor is unlikely to produce audible fan noise under typical workloads. The trade-off is that performance is capped by this low power envelope, so the benchmark scores reflect a design philosophy that favors battery life and silent operation over speed. In practice, this means the i5-3339Y will run cool to the touch and maintain consistent performance without thermal throttling, provided the laptop has any functional cooling at all.

FAQ

Q: Is the Intel Core i5-3339Y suitable for gaming?

A: No. The Cinebench R23 multi-core score of 1350 and single-core score of 190 are far too low for modern games, which require significantly higher single-thread performance and multi-core scaling.

Q: Can the processor be upgraded?

A: No, it uses the Intel BGA 1023 socket, which is a soldered connection, meaning the CPU is permanently attached to the motherboard and cannot be replaced.

Q: What type of memory does it support?

A: It supports dual-channel DDR3 memory, with no ECC capability, which is an older memory standard that is adequate for the chip’s low performance level.

Q: How does it compare to a desktop processor from the same era?

A: The data shows it is statistically tied with the AMD Phenom II X3 710 and AMD Athlon II X3 425, both of which are triple-core desktop CPUs, with deltas of 0.2% and -0.2% respectively.

Q: What is the thermal design power?

A: The TDP is 13 watts, which is very low, allowing for passive cooling or a small, quiet fan in ultra-thin mobile devices.

Q: What is the release date?

A: The release date is January 7, 2013, placing it in the early 2013 mobile processor lineup.

Benchmark Performance

The benchmark data presents a clear picture of a processor that is at the very bottom of the performance spectrum. The Cinebench R15 multi-core score of 136 is low enough to indicate that even basic rendering tasks will take an impractically long time. Moving to R20, the multi-core score rises to 567, which is a 4.2x improvement over R15 due to the different workload, but the single-core score of 79 highlights the chip’s weakness: it is barely above the threshold for what is considered usable in modern single-threaded applications. The R23 results continue this trend, with a multi-core score of 1350 and a single-core score of 190, confirming that the processor’s performance does not improve with newer benchmark versions—it remains consistently low across all tests.

The average benchmark score of 464 places the i5-3339Y in the 7th percentile of all CPUs, which means it is faster than only 7% of the processors in the database. This is a stark statistic, indicating that the vast majority of CPUs, including many from the same era, outperform it. The nearest rivals are all within a 1% band: the AMD Phenom II X3 710 scores 463 (delta 0.2%), the AMD Athlon II X3 425 scores 465 (delta -0.2%), the Intel Celeron G1620 scores 462 (delta 0.3%), and the Intel Celeron G1820T scores 467 (delta -0.7%). These numbers show that the i5-3339Y is not uniquely slow—it is surrounded by equally low-performing parts—but it also does not stand out as having any advantage over its peers.

The deltas are so small that they are effectively meaningless in real-world terms; a 0.3% difference in average score will not be perceptible to any user. However, the consistency of the scores across multiple benchmark versions suggests that the processor is well-behaved in terms of thermal management, as it does not appear to throttle or degrade under load. The multi-core to single-core ratios in R20 (7.2x) and R23 (7.1x) indicate that the two cores are utilized efficiently, but the absolute scores are so low that this efficiency does not translate to usable performance. In summary, the benchmark data shows a processor that is technically functional but severely limited, and its placement in the 7th percentile is a fair assessment of its capabilities relative to the broader market.