Intel Core i7-3689Y

The Intel Core i7-3689Y is a 2-core, 4-thread mobile processor from the Ivy Bridge architecture, built on Intel's 22 nm process with a die size of 118 mm². Its benchmark profile is dominated by a stark contrast between modest multi-core throughput and very low single-core scores, placing it in the 12th percentile of all CPUs tracked. The data reveals a chip engineered for extreme power efficiency rather than raw performance, a trade-off that defines its entire usability spectrum.

Single-Thread vs Multi-Thread Behavior

The gap between single-thread and multi-thread performance is the defining characteristic of this chip. In Cinebench R23, the i7-3689Y scores 236 points in single-core and 1,671 points in multi-core, a ratio of roughly 7:1. This indicates that multi-threaded workloads benefit substantially from the processor's two physical cores and Hyper-Threading, scaling far better than the base clock of 1.50 GHz would suggest. The boost clock of 2.60 GHz helps single-threaded tasks, but the score remains low in absolute terms.

For real-world applications, this split implies that lightly-threaded tasks—such as web browsing, document editing, or legacy software—will feel sluggish, as the single-core score is near the bottom of the benchmark database. Conversely, applications that can utilise all four threads, like video encoding or batch photo processing, will see a proportionally larger return. The Cinebench R20 results reinforce this: multi-core scores 701, while single-core drops to 99, a seven-fold difference that mirrors the R23 pattern. This behaviour suggests the chip's scheduler is heavily dependent on thread count to compensate for low clock speeds.

The data indicates that the i7-3689Y is not a balanced performer. Its multi-core advantage is real but modest, while its single-core deficit is severe. Users running modern, single-thread-dependent operating systems or software will likely perceive stutter and slow response times, whereas those running parallelised batch jobs will see more acceptable throughput. The 4 MB shared L3 cache helps mitigate some of the latency penalties from the low clocks, but it cannot overcome the fundamental frequency limitation.

Who Should Consider It

This processor is not suited for gaming. The single-core score of 236 in R23 is far below the threshold required for smooth frame rates in most contemporary titles, which rely heavily on per-core performance. The multi-core score of 1,671 also lags behind, meaning even games optimised for multiple threads will struggle. Data shows no integrated graphics specifications, but the CPU's low scores alone disqualify it for any gaming role beyond casual or 2D titles.

For content creation, the picture is mixed but generally negative. Video editing in 1080p may be possible for short clips, given the multi-core R23 score of 1,671, but render times will be long. Photo editing in tools like Adobe Photoshop, which is largely single-threaded, will suffer from the 236-point single-core result. Office productivity, including spreadsheets and word processing, is functional but will exhibit noticeable lag when handling large files or complex formulas, due to the low single-thread performance.

The most suitable use case is as a low-power embedded or ultra-portable processor for basic tasks like email, streaming video, and light document work, where the 13 W TDP allows for fanless or passively cooled designs. It is a poor choice for any workload that demands responsiveness or high throughput. Benchmark results indicate that it is outperformed by many older desktop chips, making it a niche product only for specific low-power applications.

Platform and Compatibility

The processor uses the Intel BGA 1023 socket, meaning it is soldered directly to the motherboard and is not user-upgradeable. This limits the upgrade path to replacing the entire system, as there is no socketed variant. The architecture is Ivy Bridge, which is a third-generation Core series design, indicating a platform from circa 2013. Memory support is limited to DDR3, operating in dual-channel mode, with no ECC support.

PCIe information is not provided in the data, so expansion capabilities cannot be confirmed. The lack of a listed integrated graphics controller is notable, but it is likely present given the mobile segment, though its performance is irrelevant given the CPU's limits. The 22 nm process node is relatively old by modern standards, but it enables the extremely low 13 W TDP, which is the primary selling point.

The upgrade path is effectively non-existent. Users are locked into whatever motherboard this chip is attached to, with no possibility of swapping to a faster processor. The DDR3 memory standard is outdated, and the dual-channel bus offers limited bandwidth compared to modern platforms. This makes the platform suitable only for static, low-demand deployments where longevity and power efficiency are prioritised over performance or future expansion.

How It Compares

Intel Core i3-4010U: The i3-4010U has an average benchmark score of 574, which is 0.1% higher than the i7-3689Y's 575. This makes them nearly identical in overall performance, despite the i7 branding. The i3-4010U is also a low-power mobile chip, so the competition is close, but the i7's higher thread count does not yield a meaningful advantage.

AMD Athlon II X4 605e: This AMD processor scores 574, a 0.2% difference from the i7-3689Y. The Athlon has four physical cores but no Hyper-Threading, yet it matches the i7's multi-threaded output. This suggests the i7's 13 W TDP and low clocks are severe handicaps, as a desktop chip from an older generation achieves parity.

Intel Core i3-2120: The i3-2120 scores 576, which is 0.2% higher than the i7-3689Y. This is a desktop dual-core without Hyper-Threading, yet it edges out the i7 in average score. The comparison highlights that the i7's mobile efficiency comes at a steep performance cost, as a basic desktop i3 from the same era is slightly faster.

Intel Core i7-740QM: A quad-core mobile processor from an earlier generation, the i7-740QM scores 573, which is 0.3% lower than the i7-3689Y. Despite having more physical cores, the older architecture and slower clock speeds result in a negligible performance deficit. This indicates that generational improvements in efficiency do not translate to significant speed gains for this low-power part.

Benchmark Performance

In Cinebench R15 multi-core, the i7-3689Y scores 168 points. This is a low result, but the R20 and R23 scores of 701 and 1,671, respectively, show a consistent scaling pattern across versions. The average benchmark score of 575 places it in the 12th percentile, meaning it outperforms only a small fraction of all CPUs in the database.

Compared to its nearest rivals, the deltas are minimal. Against the Intel Core i3-4010U, the i7-3689Y is 0.1% behind, a statistically insignificant margin. The Athlon II X4 605e shows the same 0.2% lead for the AMD chip. The i3-2120 is 0.2% ahead, and the i7-740QM is 0.3% behind. None of these differences exceed a fraction of a percent, indicating that the i7-3689Y sits in a tightly clustered performance band.

The data shows that the multi-core scores are disproportionately high relative to the single-core scores. In R23, the multi-core score of 1,671 is 7.1 times the single-core score of 236, whereas a perfectly scaling dual-core with Hyper-Threading would expect a ratio closer to 3.0. This anomaly suggests that the boost clock of 2.60 GHz is rarely sustained under multi-threaded loads, and the chip relies on sustained low-frequency operation across all cores, which inflates the multi-core figure but does not help real-time single-threaded tasks.

FAQ

Q: Is the Intel Core i7-3689Y faster than the Intel Core i3-4010U?

A: No. The i3-4010U has an average benchmark score of 574, while the i7-3689Y scores 575, making the i7 0.1% slower. They are effectively equal in performance.

Q: What is the single-core performance of this processor?

A: In Cinebench R23, the single-core score is 236 points. In Cinebench R20, it is 99 points. These are very low scores, placing the chip in the bottom percentile for single-threaded tasks.

Q: Can this processor handle 4K video playback?

A: The data does not include integrated graphics specifications or video decoding capabilities. However, the low single-core and multi-core scores suggest it would struggle with any demanding media tasks beyond standard definition.

Q: What memory type does it support?

A: It supports DDR3 memory in a dual-channel configuration. ECC memory is not supported.

Q: How many threads does it have?

A: The processor has 2 physical cores and 4 threads, enabled by Hyper-Threading technology. This is confirmed by the core and thread counts in the specifications.

Q: What is the TDP of this chip?

A: The thermal design power is 13 W, which is extremely low for a Core i7. This allows for passive cooling in thin and light devices.

Power and Thermals

The 13 W TDP is the most salient feature of this processor. It is an exceptionally low power envelope for a Core i7, enabling fanless designs and extremely long battery life in ultra-portable devices. The 22 nm process node is crucial to achieving this, as it reduces leakage and switching losses compared to older, larger nodes. The architecture is Ivy Bridge, which was designed with efficiency in mind, but the low TDP forces significant clock throttling to stay within thermal limits.

The base clock of 1.50 GHz and boost clock of 2.60 GHz indicate that the chip can briefly ramp up for bursty tasks, but sustained loads will likely settle near the base clock to maintain the thermal envelope. The data does not provide specific thermal measurements, but the TDP class suggests that a simple passive heatsink or a small low-profile fan is sufficient. This is in stark contrast to desktop processors, which require large tower coolers or liquid cooling for similar performance levels.

The implication is that the i7-3689Y is not thermally constrained in the sense of overheating, but rather in the sense of limited performance headroom. Users should expect consistent, low-level performance rather than bursts of speed. The low TDP also means that system builders can use smaller batteries and thinner chassis, which is the primary advantage of this chip. However, the performance trade-off is severe, as benchmark results show it ranks in the 12th percentile of all CPUs.