Intel Core 2 Duo E8135

The Intel Core 2 Duo E8135 is a mobile dual-core processor from Intel's Core 2 architecture, specifically the Penryn generation, manufactured on a 45 nm process. It operates at a fixed base clock of 2.67 GHz with no boost capability, and its 2 cores and 2 threads place it in the dual-core segment. The data records a TDP of 44 W, a 50th percentile standing among all CPUs in the database, and an average benchmark score of 0, reflecting the absence of active benchmark entries. This part is end-of-life, released in 2009, and targets the Intel Socket P platform.

Single-Thread vs Multi-Thread Behavior

The E8135 presents a symmetric dual-core configuration: 2 cores and 2 threads, meaning no simultaneous multithreading is available. Consequently, the multi-threaded workload capacity is exactly double the single-thread capacity, but only when both cores are fully utilized. The base clock of 2.67 GHz is the sole frequency indicator, as no boost clock is listed; therefore, the single-thread performance is fixed at this clock rate. The L1 cache is 64 KB per core, while the L2 cache is 6 MB shared between the two cores. This shared L2 design allows either core to access the full 6 MB, which is beneficial for workloads that exhibit data sharing between threads. However, the lack of an L3 cache and the absence of a boost clock mean that the processor's performance envelope is strictly defined by the 2.67 GHz clock and the 45 nm Penryn architecture.

For real workloads, the single-thread vs multi-thread split is straightforward. Applications that are not optimized for parallelism will rely entirely on the 2.67 GHz single-core execution. Given the 50th percentile ranking, this processor sits at the median of all CPUs in the database, indicating that its single-thread performance is typical for the era, but not exceptional. Multi-threaded workloads that can utilize exactly 2 threads will see up to a 2x scaling over single-threaded execution, assuming no memory bottlenecks. The dual-channel memory bus supporting DDR2 and DDR3 provides the memory bandwidth for these threads, though the exact bandwidth is not specified in the data. The 410 million transistors on a 107 mm² die suggest a relatively simple core design, consistent with a mobile part focused on efficiency rather than raw throughput.

Because there are no benchmark scores listed (average benchmark score of 0), the data cannot provide absolute performance figures. The percentile of 50 is the only quantitative measure of its standing. This means that in the database's historical classification, the E8135 is exactly average. The lack of a boost clock is a significant limitation for bursty single-threaded workloads, as the processor cannot dynamically raise its frequency. This is a key differentiator from many later processors that feature turbo capabilities. For users running legacy software, the 2.67 GHz clock and the 6 MB shared L2 will determine the experience. The 64 KB per-core L1 is standard for the Core 2 generation.

In summary, the data indicates a balanced dual-core part with no overclocking headroom (multiplier unlocked is false) and no frequency flexibility. The multi-threaded performance is capped at two threads, and the single-threaded performance is fixed at the base clock. The 50th percentile suggests that this processor is neither a high-end nor a low-end part in the database's overall CPU population, but rather a median mobile offering from 2009.

Power and Thermals

The thermal design power (TDP) is recorded at 44 W. This is a relatively modest figure for a dual-core processor, particularly one with a 45 nm process node. The 45 nm manufacturing process, with 410 million transistors packed into a 107 mm² die, contributes to this efficiency. For comparison, the TDP class implies a cooling solution typical of a mobile laptop or a compact desktop. The data does not specify a cooler size, but the 44 W envelope suggests that a standard notebook heatpipe and fan assembly would be sufficient. Because there is no boost clock, the processor does not have a higher transient power state; the 44 W TDP represents the sustained thermal load under full load.

The Intel Socket P interface is designed for mobile platforms, and the 44 W TDP aligns with that segment. The absence of an integrated GPU (the data notes integrated graphics are "On certain motherboards (Chipset feature)") means that the CPU itself does not generate graphics-related heat, keeping the thermal load focused on the two cores. The memory support for DDR2 and DDR3, via a dual-channel bus, does not add significant power draw compared to the cores. The ECC memory support is false, which simplifies the memory controller design and reduces power consumption.

For thermal management, the lack of a boost clock means there is no thermal throttling scenario based on frequency spikes; the processor runs at a constant 2.67 GHz. The 44 W TDP is the key number for system designers. A cooling solution that can dissipate 44 W of heat will keep the processor within its operating limits. The 50th percentile performance ranking does not directly correlate with thermal behavior, but the 44 W TDP is a clear indicator that this is an efficiency-oriented mobile chip. The end-of-life status means that no new thermal guidance is provided, but the historical data shows a modest cooling requirement.

In practice, users should expect a quiet and cool-running system, as 44 W is well within the range of passive or low-speed fan cooling for a mobile chassis. The 45 nm process node is a key factor here; older 65 nm parts typically had higher TDPs. The 410 million transistor count is moderate, and the 107 mm² die size is relatively small, both of which contribute to the low thermal output. The data shows no overclocking capability (multiplier unlocked is false), so the 44 W TDP is the maximum sustained power draw under normal operation.

How It Compares

The dataset provides no nearest rival entries for the Intel Core 2 Duo E8135. This absence means that the analysis cannot rely on specific rival names, scores, or delta percentages. Instead, the comparison must be based on the processor's absolute standing: the 50th percentile among all CPUs in the database. This percentile indicates that the E8135 is exactly at the median of the database's historical CPU population. Without rivals, the only quantitative anchor is the 50th percentile and the average benchmark score of 0, which reflects the lack of recorded benchmark runs.

Given the lack of rival data, the comparison shifts to internal characteristics. The 2.67 GHz base clock, 2 cores, and 2 threads are the defining features. The 6 MB shared L2 cache is a notable asset for a dual-core part, as it allows both cores to access a large pool of cache. The 45 nm process and 44 W TDP position it as an efficient mobile processor. The release date of 2009 places it in the late Penryn era, and the end-of-life status means it is no longer in production. The 50th percentile suggests that in the database's classification, this processor is neither a high-performance outlier nor a weak entry. It is a median mobile chip.

Without rival deltas, the analysis cannot state any percentage advantage or deficit. The only comparative statement possible is the percentile. The absence of benchmark scores (average of 0) further limits the quantitative comparison. However, the data does allow for a qualitative comparison: the E8135 is a dual-core, dual-thread mobile part with a fixed clock, no boost, and no unlocked multiplier. These features place it in a specific niche of the mobile market from 2009. The Intel Socket P socket is shared with other Core 2 mobile parts, but no specific rivals are listed.

FAQ

Q: What is the process node of the Intel Core 2 Duo E8135?

A: The process node is 45 nm, manufactured by Intel.

Q: Does the E8135 have an integrated GPU?

A: The data indicates integrated graphics are available "On certain motherboards (Chipset feature)," meaning the CPU itself does not include a GPU; it relies on the chipset.

Q: What is the TDP of this processor?

A: The TDP is 44 W, which is a modest figure for a mobile dual-core part.

Q: What memory types does it support?

A: It supports DDR2 and DDR3 memory, using a dual-channel memory bus. ECC memory is not supported.

Q: Is the multiplier unlocked for overclocking?

A: No, the multiplier is locked (multiplier unlocked is false).

Q: What is the production status of the E8135?

A: The production status is end-of-life, and it was released in 2009.

Q: How many cores and threads does it have?

A: It has 2 cores and 2 threads, with a base clock of 2.67 GHz and no boost clock.

Q: What is the cache configuration?

A: The L1 cache is 64 KB per core, and the L2 cache is 6 MB shared between the two cores. There is no L3 cache.

Benchmark Performance

The benchmark data for the Intel Core 2 Duo E8135 is notably sparse. The benchmarks array is empty, and the average benchmark score is recorded as 0. This absence of scores means that no absolute performance figures are available from the database. The only quantitative performance indicator is the percentile vs all CPUs, which is 50. This percentile places the E8135 at the exact median of the database's CPU population. In a normal distribution of scores, a 50th percentile means that half of the CPUs in the database are slower or equal, and half are faster or equal.

Because there are no nearest rivals, the benchmark performance analysis cannot rely on delta percentages. The data shows no rival names, scores, or deltaPct values. Therefore, the analysis must interpret the percentile in the context of the processor's specifications. The 2.67 GHz base clock is the sole frequency, and with 2 cores and 2 threads, the multi-threaded performance is limited to two threads. The 6 MB shared L2 cache is a significant asset for a dual-core part, as it reduces the penalty of cache misses when both cores access shared data. The 45 nm process node is a mature technology for 2009, and the 44 W TDP indicates an efficiency-focused design.

The 50th percentile suggests that the E8135's performance is average relative to all CPUs ever recorded in the database. This is a reasonable expectation for a mid-range mobile processor from 2009. Without benchmark scores, it is impossible to state a specific score, such as a multi-core score of X or a single-core score of Y. The data simply does not contain those figures. The average benchmark score of 0 is a placeholder indicating no recorded runs. This is common for end-of-life parts that were never benchmarked by the database's collection methods.

For real-world performance, the data implies that the E8135 will handle single-threaded tasks at a fixed 2.67 GHz, and multi-threaded tasks with up to 2 threads. The lack of a boost clock means no dynamic frequency scaling. The 50th percentile is the only benchmark-derived metric, and it places the processor in the middle of the pack. In comparison to hypothetical rivals, the E8135 would likely be outperformed by later dual-core parts with higher clocks or boost capabilities, and outperformed by quad-core parts in multi-threaded workloads. However, the data does not list any such rivals, so these comparisons are not possible within the constraints of the FACT PACK. The 410 million transistors and 107 mm² die size are physical characteristics, not performance numbers.

In summary, the benchmark performance section is defined by the absence of data. The percentile of 50 is the sole quantitative anchor, and the average score of 0 confirms that no benchmark runs are recorded. The processor's performance is thus described qualitatively: a 2-core, 2-thread mobile chip with a 2.67 GHz base clock and a 6 MB shared L2, sitting at the median of the database's CPU population. The data does not support any claims of specific deltas or scores.