Intel Celeron G1840T

The Intel Celeron G1840T is a dual-core, dual-thread desktop processor based on the Haswell architecture, built on Intel's 22 nm process with 1,400 million transistors on a 177 mm² die. Its benchmark results place it at the 8th percentile of all CPUs, indicating that it is positioned firmly at the entry level of the performance spectrum. With an average benchmark score of 484, this chip delivers predictable, modest performance that is suitable for basic computing tasks, but it will struggle with demanding software. The data shows a processor designed for efficiency and simplicity, not for high-end workloads.

Who Should Consider It

The G1840T is a candidate for users whose primary workloads involve light office productivity, web browsing, and media playback. In multi-core Cinebench R23 testing, the processor scores 1339 points, which is a low figure that reflects its 2-core/2-thread configuration. For single-core tasks, the Cinebench R23 score of 189 points indicates that even basic responsive desktop use will feel adequate but not snappy. This is not a processor for content creation; video editing, 3D rendering, or heavy photo manipulation will result in long wait times. The Geekbench multi-core score of 665 and single-core score of 423 reinforce this assessment, showing a CPU that can handle document editing and spreadsheet work without issue.

Gaming is only viable for very old or indie titles that do not require substantial processing power. The integrated Intel HD (Haswell) graphics eliminates the need for a discrete GPU in basic systems, but its capability is limited to 2D applications and very light 3D workloads. Users building a home theater PC (HTPC) for streaming video or a simple file server may find the G1840T sufficient, as these tasks are not CPU-intensive. However, for anyone planning to run modern productivity suites with many active tabs or applications, the 8th percentile overall ranking suggests that the experience will be constrained. The processor is best suited for dedicated single-purpose machines where cost and power are more important than performance.

Power and Thermals

The G1840T carries a TDP of 54 watts, which classifies it as a low-power part within the desktop segment. This TDP figure implies that a stock cooler or a basic air cooler will be entirely sufficient to manage its thermal output. The 54 W rating means the processor will not generate significant heat, making it suitable for compact cases with limited airflow. The 22 nm process node contributes to this efficiency, as it allows the chip to operate at a base clock of 2.50 GHz without a boost clock, keeping power draw predictable and steady.

Given the modest thermal envelope, users do not need to invest in high-end cooling solutions. A capable air cooler, such as a low-profile model, will keep temperatures well within safe limits even under sustained load. The absence of a boost clock also means that power consumption does not spike under turbo conditions, which simplifies thermal management. For system builders, this TDP class allows for smaller power supply units and quieter fan profiles, as the processor will rarely push cooling systems to their limits. The data indicates that thermal throttling should not be a concern in any well-ventilated chassis.

How It Compares

The G1840T sits in a tight cluster of competing processors, with its nearest rivals all scoring within a narrow band of 480 to 489 points. Against the AMD PRO A6-8570E, which has an average score of 483, the G1840T is effectively tied with a deltaPct of 0.2%. This means the two chips deliver nearly identical multi-threaded performance, making the choice between them dependent on platform preferences rather than raw speed. The data shows no meaningful winner, so users should base their decision on socket compatibility and feature sets.

Compared to the Intel Core M-5Y10, which scores 480, the G1840T holds a slight edge of 0.7%. The Core M-5Y10 is a low-power mobile part, so the desktop-oriented G1840T’s advantage here is expected, but the margin is negligible in real-world use. Both processors will feel similar in everyday tasks, with the G1840T offering a minor performance lead that is unlikely to be perceptible.

The Intel Core i3-560, another rival with a score of 480, also trails the G1840T by 0.9%. This is notable because the i3-560 is a dual-core part with hyper-threading, yet the benchmark data shows it performing slightly below the Celeron. This suggests that the G1840T’s Haswell architecture and newer memory support compensate for its lack of threads in this particular test suite. The deltaPct of 0.9% is small, but it indicates that the G1840T is not the weakest option in its class.

The AMD Phenom II X3 B73 is the only rival that outpaces the G1840T, with a score of 489 and a deltaPct of -0.9%. This triple-core processor offers a small performance advantage, but the difference is minor at this performance tier. The G1840T’s single-thread performance, as shown by its Cinebench R23 single-core score of 189, may be more consistent than the Phenom's older architecture, but the multi-core deficit is clear. Overall, the G1840T is competitive within its immediate peer group, though none of these chips will satisfy demanding workloads.

Platform and Compatibility

The processor uses the Intel Socket 1150 platform, which is associated with the Haswell generation of desktop CPUs. This socket supports DDR3 memory in a dual-channel configuration, and the G1840T officially supports this memory type without ECC functionality. The platform's PCIe Gen 3 support allows for modern discrete graphics cards and NVMe storage adapters, though the processor's low performance will bottleneck such components. The 3 MB of shared L3 cache and 256 KB of L2 cache per core are typical for this generation, providing adequate data locality for basic tasks.

Upgrade path is limited but not non-existent. Users with a Socket 1150 motherboard can move to higher-tier Haswell processors, such as Core i5 or i7 models, without changing the board. This provides a viable upgrade path for users who start with the G1840T and later need more CPU performance. However, the platform does not support newer DDR4 memory or PCIe Gen 4, so it is a mature ecosystem with no forward-looking features. The processor is locked (multiplierUnlocked is false), meaning overclocking is not possible, and the base clock of 2.50 GHz is the maximum operational frequency.

FAQ

Q: Does this processor support ECC memory?

A: No, the G1840T does not support ECC memory, as indicated by the eccMemory field set to false.

Q: What is the integrated graphics capability?

A: The processor includes Intel HD (Haswell) integrated graphics, which is suitable for basic display output and light 2D workloads.

Q: How many cores and threads does the G1840T have?

A: It has 2 cores and 2 threads, meaning it can handle only two simultaneous processing threads.

Q: What is the release date of this processor?

A: The release date is 2014-04-30, placing it in the early Haswell desktop lineup.

Q: Can this processor be overclocked?

A: No, the multiplier is locked (multiplierUnlocked is false), so the clock speed cannot be adjusted above the base 2.50 GHz.

Q: What is the processor's production status?

A: The production status is listed as "Active," meaning it is still in production.

Single-Thread vs Multi-Thread Behavior

The G1840T exhibits a clear split between its single-thread and multi-thread performance, as evidenced by the Cinebench R23 scores of 189 (single-core) and 1339 (multi-core). The multi-core score is approximately 7 times higher than the single-core score, which is expected for a 2-core processor scaling across both cores. In Geekbench, the single-core score of 423 and multi-core score of 665 show a similar pattern, though the scaling is less dramatic due to test methodology. This behavior indicates that the processor can effectively utilize both of its cores when a workload is parallelized, but the absolute performance in each core is low.

For real-world applications, this means that heavily threaded tasks like video encoding or 3D rendering will use both cores, but the total throughput will still be limited by the low per-core speed. Single-threaded applications, such as older games or certain office tools, will run at the processor's base clock of 2.50 GHz, which is adequate for simple operations but will cause noticeable lag in complex calculations. The data suggests that users should prioritize single-thread performance when selecting software, as the G1840T will handle sequential tasks more efficiently than parallel ones, though both are constrained at this performance level. The 8th percentile ranking for all CPUs underscores that this is a processor for basic tasks, and the single-thread vs multi-thread behavior confirms that it is not suited for any performance-critical applications.