Intel Pentium Gold G6405T

The Intel Pentium Gold G6405T is a desktop processor on Intel Socket 1200, built on the 14 nm Comet Lake-R architecture with a fixed 3.50 GHz base clock and no listed boost clock. It provides 2 cores and 4 threads, a 4 MB shared L3 cache, and integrated UHD Graphics 610. The average benchmark score is 905, placing it at the 23rd percentile among all CPUs in the database. Its four nearest rivals sit within 0.5% of that average score, placing the G6405T in a very dense performance cluster at the low end of the desktop range.

Who Should Consider

The benchmark profile points to low-intensity desktop workloads rather than heavy compute. The 23rd percentile figure means the majority of CPUs in the database produce higher scores. For gaming, the relevant limitations are the two-core, four-thread design, the fixed 3.50 GHz clock, and the integrated UHD Graphics 610. The Cinebench R20 single-core score of 155 and multi-core score of 1104 indicate that even moderately threaded game logic is likely to be the bottleneck. This is not a part aimed at high-refresh or modern AAA gaming; it is better suited to basic 2D desktop use, media playback, and very light 3D loads.

For creation workloads, the multi-core results are similarly low. The Cinebench R15 multi-core score is 264, R20 multi-core is 1104, and R23 multi-core is 2630. Those numbers are far below what heavily threaded rendering, encoding, or compilation tasks expect from a desktop CPU. With only four logical threads across two physical cores, there is limited parallel headroom. A user whose primary task is video rendering or 3D scene export should look toward higher-scoring parts in the database.

For everyday office productivity, the picture is different. The 3.50 GHz base clock gives the chip a predictable single-thread speed for sequential tasks such as document editing, web browsing, and spreadsheet work. The 35 W TDP and integrated graphics make it viable for a compact desktop or a low-power always-on machine. The data suggests a clear workload boundary: the G6405T is credible for light, single-thread-focused desktop use, but not for creative or gaming workloads that scale across many threads.

Single-Thread vs Multi-Thread Behavior

The single-thread scores are low in absolute terms: 155 in Cinebench R20 single-core and 371 in Cinebench R23 single-core. Because no boost clock is listed, the 3.50 GHz base clock is the reference point for single-thread performance. The CPU does not appear to have a higher frequency state to invoke during short bursts, so the single-thread result is effectively anchored to that base frequency.

The multi-thread scores are higher in the Cinebench tests, as expected from a part with four threads: 264 in R15 multi-core, 1104 in R20 multi-core, and 2630 in R23 multi-core. These figures show that the chip can use its four logical threads, but the absolute values remain modest. The gap between single-thread and multi-thread scores reflects the thread count available for parallel work. However, the multi-thread results are still low next to the broader CPU pool, which is consistent with the 23rd percentile standing.

The cache hierarchy also shapes behavior. Each core has 64 KB of L1 and 256 KB of L2, while the shared L3 is 4 MB. These are small capacities by modern desktop standards, and they contribute to the CPU’s placement near the bottom of the database. In single-threaded tasks, the 3.50 GHz clock can carry basic responsiveness; in multi-threaded tasks, the two-core design caps throughput quickly.

Power and Thermals

The defining power figure is the 35 W TDP. On a desktop Socket 1200 platform with only two cores and four threads, a 35 W TDP implies a low thermal load. The cooling tier required is modest: a basic air cooler rated for Socket 1200 is sufficient, and there is no indication from the power envelope that a large radiator or elaborate liquid cooling setup is necessary.

The 14 nm process node and integrated UHD Graphics 610 also keep system complexity low. Because the CPU includes graphics, a separate video card is not required for display output, which reduces both system power consumption and thermal output. The combination of 35 W TDP, integrated graphics, and active production status makes the G6405T usable in small desktops or low-noise builds where heat dissipation is limited. Thermals are not a point of concern for this product; the scarcity is in compute throughput, not in cooling headroom.

FAQ

Q: What is the launch MSRP?

A: The launch MSRP is $64.

Q: Does the G6405T support ECC memory?

A: No; the ECC memory field is false, so ECC memory is not supported.

Q: What integrated graphics does the CPU include?

A: It includes UHD Graphics 610, and the PCIe configuration provides 16 Gen 3 lanes from the CPU for expansion such as a discrete GPU.

Q: Is the multiplier unlocked?

A: No; the multiplier unlocked field is false, so the clock multiplier is locked.

Q: What memory configuration does it support?

A: It supports dual-channel DDR4 memory with a memory bandwidth of 42.7 GB/s.

Q: When was the product released, and is it still in production?

A: It was released on 2021-03-15 and its production status is Active.

How It Compares

The G6405T has an average benchmark score of 905. Its nearest rivals all sit between 904 and 909, so the comparison is defined by very small margins.

Against the Intel Core i5-5350U, which has an average score of 904, the G6405T is 0.1% ahead. This is a negligible margin and effectively a tie in aggregate benchmark terms.

Against the AMD A10-7860K, also with an average score of 904, the G6405T is again 0.1% ahead. The delta is so small that the two CPUs are statistically interchangeable in this dataset.

Against the Intel Core i5-4258U, with an average score of 906, the G6405T is 0.1% behind. The difference is within the same narrow band as the two 904-score rivals, so the G6405T neither gains nor loses meaningful ground.

Against the Intel Xeon W3540, with an average score of 909, the G6405T is 0.5% behind. This is the largest gap among the four nearest rivals, but it is still a very small margin in overall score terms. The data does not indicate that any of these CPUs separates itself in practical performance.

Platform and Compatibility

The G6405T uses Intel Socket 1200 and the Comet Lake architecture, with the more specific codename Comet Lake-R. It is marked as a Desktop market segment part, and production is listed as Active. The memory controller supports DDR4 in dual-channel configuration at 42.7 GB/s of bandwidth, but ECC memory is not supported, which points toward mainstream desktop motherboards rather than validated ECC platforms.

The PCIe support is Gen 3 with 16 lanes from the CPU only. That allows a discrete GPU or other expansion cards to connect directly to the CPU, while the integrated UHD Graphics 610 provides display output without requiring such a card. The dual-channel DDR4 support and Socket 1200 define the motherboard requirements. The part number is SRH41.

Because the multiplier is locked, overclocking through the CPU clock multiplier is not available. Any platform upgrade must remain within the Socket 1200 and DDR4 ecosystem, and the CPU’s Active production status means it remains a current low-power desktop option rather than a discontinued legacy part.