Core 2 Duo T6400

Details and Benchmarks for Intel Core 2 Duo T6400

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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.
Frequently Compared

Intel Core i7-5500U 4 views

AMD Ryzen 5 3500X 3 views

Intel Core 2 Duo E8600 3 views

Intel Celeron G530 3 views

Intel Pentium G3240 3 views

AMD A6-3620 2 views

AMD A4-6300 2 views

AMD A10-5757M 2 views

AMD A6-5400K 2 views

AMD Phenom 9750 2 views

Intel Core 2 Duo T6400

Main Specifications

Designer: Intel
Name: Core 2 Duo T6400
Model Number: T6400
Cores: 2
Threads: 4
Base Frequency: 2000 MHz
Socket: PGA478
Max CPUs: 1
TDP: 35 W

Cache Specifications

Memory Specifications

Supported Memory Type: DDR3 1066/1333
Memory Channels: 2
Maximum Memory: 0 GB
Maximum Bandwidth: 21.3 GB/s
ECC Support: No

PCI-Express Specifications

PCIe Revision: 2.0
PCIe Lanes: 16
PCIe Configuration: 1x16, 2x8, 1x8 2x4

Integrated Graphics

GPU: HD Graphics 3000
GPU Designer: Intel
GPU Max Frequency: 950 MHz

Physical Specifications

Process: 45 nm
Word Size: 64-bit

CPU Features

SSE4.1 SSE4.2 AVX2 AES x86-64 HT EIST TXT vPro VT-x VT-d EPT Secure Key SMEP SIPP IPT TSX Flex Memory FMA
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