Core 2 Duo T6400 Benchmarks & Performance Report

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Benchmark Results

Combined benchmark scores based on multiple data points, giving a quick overview of this processor's performance.

Overall Score

Overall score for Core 2 Duo T6400 based on all benchmark results gathered. Look at this like a meta score, you will find more specific workload ratings below.

4,119 Rank: 1782

Rank	Name	Score	Visual
1778	Core 2 Duo T6500	4,123	+0.1%
1779	Pentium 3556U	4,123	+0.1%
1780	Core 2 Duo P7450	4,121	+0%
1781	Pentium E5200	4,120	+0%
1782	Core 2 Duo T6400	4,119
1783	A10-7400P	4,118	+-0%
1784	Core 2 Duo P9300	4,117	+-0%
1785	Pentium 4405Y	4,116	-0.1%
1786	Pentium T4400	4,115	-0.1%
1787	Core 2 Duo T9500	4,114	-0.1%

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Multicore Score

Multicore performance score for Core 2 Duo T6400 based on multi-threaded benchmark results.

4,236 Rank: 1948

Rank	Name	Score	Visual
1944	A6-6400K	4,237	+0%
1945	Core 2 Duo P7570	4,237	+0%
1946	Core 2 Duo T6500	4,237	+0%
1947	Atom D425	4,237	+0%
1948	Core 2 Duo T6400	4,236
1949	Intel Atom x5-Z8350	4,235	+-0%
1950	Core i5-3337U	4,235	+-0%
1951	Sempron 2500+	4,235	+-0%
1952	Pentium T4300	4,234	+-0%
1953	Intel Core i5-560UM	4,233	-0.1%

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Singlecore Score

Single-core performance score for Core 2 Duo T6400 based on single-threaded benchmark results.

4,041 Rank: 1738

Rank	Name	Score	Visual
1734	Core 2 Duo P9300	4,043	+0%
1735	Phenom 9500	4,042	+0%
1736	Core i3-4012Y	4,042	+0%
1737	A6-4400M	4,042	+0%
1738	Core 2 Duo T6400	4,041
1739	E2-9010	4,039	+-0%
1740	Xeon E7-4830	4,037	-0.1%
1741	Celeron B840	4,037	-0.1%
1742	A6-3420M	4,037	-0.1%
1743	A8-5545M	4,035	-0.1%

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Workload Scores

Performance scores grouped by workload type, normalized and aggregated from multiple raw benchmark results.

Number Crunching

Aggregated score for Core 2 Duo T6400 based on integer math, floating point math, and prime number computation benchmarks.

-- Rank: --

Number Crunching score not yet available.

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Data Processing

Aggregated score for Core 2 Duo T6400 based on data encryption, data compression, and string sorting benchmarks.

-- Rank: --

Data Processing score not yet available.

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Physics & Compute

Aggregated score for Core 2 Duo T6400 based on physics simulation and extended instruction set (SSE/AVX) benchmarks.

-- Rank: --

Physics & Compute score not yet available.

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Core 2 Duo T6400 Details

Released in 2010, the Intel Core 2 Duo T6400 is a relic of the late-era Penryn architecture, representing a transitional step in Intel's shift toward more power-efficient mobile processors. Though now over 13 years old, it remains a notable example of Intel's dual-core design philosophy during the early 2010s, offering a balance between performance and thermal efficiency for its time. Built on a 45 nm process, the T6400 operates at a base clock of 2.00 GHz with a turbo frequency of 1.86 GHz and supports Hyper-Threading, enabling it to handle four threads simultaneously. It is designed for the PGA478 socket and has a modest TDP of 35 W, making it suitable for laptops where power consumption was a key concern.

The processor features a 2 MB L2 cache, which was considered substantial for its era, and supports DDR3 1066/1333 memory across two channels, with a maximum memory capacity of 16 GB. Its integrated graphics, Intel HD Graphics 3000, runs at a base frequency of 350 MHz with a burst frequency of 950 MHz, capable of driving up to two displays. While not powerful by modern standards, this GPU provided basic multimedia and light gaming capabilities for its time.

In benchmark testing, the Core 2 Duo T6400 achieves an overall score of 4119, ranking #1782 out of 2060 processors. Its single-core performance scores 4041, placing it at #1738, while its multicore score of 4236 lands at #1948. These results place it just behind its sibling, the Core 2 Duo T6500, and slightly ahead of the Pentium T4400, indicating it was a mid-tier performer in its class. The processor competes with other aging Intel and AMD chips from the same period, such as the Celeron B840 and the A6-3420M, but is clearly outpaced by modern architectures.

Despite its age, the T6400 supports a range of advanced features including SSE4.1, SSE4.2, AVX2, AES encryption, and Intel's virtualization technologies like VT-x and VT-d. It also includes EIST for dynamic frequency scaling and TXT for enhanced security. These capabilities reflect Intel's focus on security and virtualization even in consumer-grade mobile processors of that era.

As of March 2026, the Core 2 Duo T6400 serves as a historical benchmark for how far processor performance has advanced. While it is no longer suitable for modern workloads such as gaming, video editing, or machine learning, it remains a viable option for legacy systems, basic office tasks, or educational purposes where low power consumption and system stability are prioritized over raw performance.