Core 2 Quad Q9400

Details and Benchmarks for Intel Core 2 Quad Q9400

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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 Quad Q9400 based on all benchmark results gathered. Look at this like a meta score, you will find more specific workload ratings below.

4,233 Rank: 1621
Rank Name Score Visual
1617 Core i5-460M 4,237
+0.1%
1618 Celeron N4000 4,234
+0%
1619 Athlon II X4 630 4,234
+0%
1620 Phenom II X3 710 4,234
+0%
1621 Core 2 Quad Q9400 4,233
1622 Core i7-2610UE 4,232
+-0%
1623 A6-9210 4,232
+-0%
1624 Phenom 9150e 4,232
+-0%
1625 Pentium 3825U 4,232
+-0%
1626 Athlon II X4 620 4,230
-0.1%

View full ranking →

Multicore Score

Multicore performance score for Core 2 Quad Q9400 based on multi-threaded benchmark results.

4,164 Rank: 2030
Rank Name Score Visual
2026 Core 2 Duo T7700 4,173
+0.2%
2027 Core 2 Duo T9550 4,168
+0.1%
2028 Core 2 Duo U9600 4,168
+0.1%
2029 Xeon E3110 4,166
+0%
2030 Core 2 Quad Q9400 4,164
2031 Core i5-4300Y 4,161
-0.1%
2032 Core 2 Duo P8400 4,155
-0.2%
2033 Core 2 Quad Q8400 4,150
-0.3%
2034 Athlon II X2 250 4,149
-0.4%
2035 A4-6320 4,143
-0.5%

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Singlecore Score

Single-core performance score for Core 2 Quad Q9400 based on single-threaded benchmark results.

4,279 Rank: 1508
Rank Name Score Visual
1504 Phenom II X2 B57 4,282
+0.1%
1505 Phenom II N950 4,281
+0%
1506 FX-6100 4,280
+0%
1507 Pentium E6500 4,279
+0%
1508 Core 2 Quad Q9400 4,279
1509 Core i7-860S 4,278
+-0%
1510 Athlon II X4 645 4,276
-0.1%
1511 Xeon W3505 4,276
-0.1%
1512 Core i5-560M 4,275
-0.1%
1513 A6-5357M 4,273
-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 Quad Q9400 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 Quad Q9400 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 Quad Q9400 based on physics simulation and extended instruction set (SSE/AVX) benchmarks.

-- Rank: --

Physics & Compute score not yet available.

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Core 2 Quad Q9400 Details

The Intel Core 2 Quad Q9400 ranks among the lower tier of processors in modern benchmarking evaluations, with an overall score of 4233 placing it at #1621 out of 2060 CPUs. While it holds a single-core score of 4279 and a multicore score of 4164, its performance is significantly overshadowed by contemporary high-end processors, which now exceed 12,000 in multicore performance and 8,000 in single-core scores. In direct comparison, the Q9400 is outpaced by nearly all modern CPUs, even entry-level models such as the Celeron N4000 and A6-9210. Its closest peers in performance include the Core i5-460M and Athlon II X4 630, both of which offer comparable overall scores, indicating that the Q9400 is positioned as a mid-tier performer from a bygone era of computing.

Launched in August 2008, the Core 2 Quad Q9400 is an older desktop processor based on Intel’s Yorkfield architecture, manufactured on a 45 nm process node. It features four cores with a base clock of 2.666 GHz and a locked multiplier, limiting its overclocking potential. The processor supports dual-channel DDR1, DDR2, and DDR3 memory, with a maximum capacity of 8 GB, and uses a Socket 775 interface. It has a 95 W TDP, which requires adequate cooling due to its relatively high power draw for a quad-core design of its time. The chip integrates 6 MB of L2 cache across its cores, with 5.722 MiB of total L2 cache and 0.061 MiB of L1 cache. Despite lacking integrated graphics, certain motherboards with compatible chipsets can provide this functionality.

The Q9400 supports a range of Intel technologies including SSE, SSE2, SSE3, SSE4.1, EIST, VT-x, and TXT, which enhance multimedia, virtualization, and power management capabilities. However, it does not support ECC memory or simultaneous multithreading, which limits its use in enterprise or high-performance computing environments. The processor was designed for mainstream desktop use and served well in its time for multitasking and light productivity workloads. Today, it is best suited for legacy systems or low-cost builds where modern performance is not required.

As of March 2026, the Core 2 Quad Q9400 is considered obsolete by modern standards. Its multicore score of 4164 places it near the bottom of the multicore performance list, trailing behind nearly all current-generation CPUs. While it once offered strong performance for its era, the rapid evolution of processor technology has rendered it largely irrelevant for contemporary computing needs. Its primary legacy lies in its role as one of Intel’s early quad-core designs, paving the way for more advanced architectures in the years that followed.
Frequently Compared

Intel Core i9-7900X 8 views

Intel Pentium G4600 7 views

AMD Phenom II X3 710 3 views

AMD A10-5757M 3 views

AMD A4-6300 3 views

AMD A6-5400K 3 views

Intel Xeon W3505 3 views

Intel Celeron G530 3 views

Intel Xeon E3-1240 3 views

AMD Ryzen 5 3500X 2 views

Intel Core 2 Quad Q9400

Main Specifications

Designer: Intel
Name: Core 2 Quad Q9400
Cores: 4
Threads: 4
Base Frequency: 2666 MHz
Clock Multiplier: 8x (locked)
Core Name: Yorkfield
Socket: Socket 775
Package: FC-LGA6
Target Segment: Desktop
TDP: 95 W

Cache Specifications

L1 Cache: 62.464 KiB
L2 Cache: 5.722 MiB

Memory Specifications

Supported Memory Type: DDR1, DDR2, DDR3

Physical Specifications

Process: 45 nm
Die Area: 81 mm²
Transistor Count: 0.00 billion
Manufacturer: Intel

CPU Features

MMX SSE SSE2 SSE3 SSE4.1 EIST TXT VT-x
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