Intel Core 2 Duo E8400 benchmarks

Below are comparison charts, showing how the Intel Core 2 Duo E8400 stands against other x86 CPUs in multi-threaded programs. The difference in performance between Core 2 Duo E8400 and each of the listed microprocessors is calculated as an average of differences in 11 multi-threaded benchmarks from our benchmark database. The list of test applications and programs includes Blowfish encryption, CINEBENCH R10, Euler3D, FLAC encoding, Fritz Chess Benchmark, H.264 video encoding, PCMark05, LAME MP3 encoding, MySQL 5.0.96, wPrime, and XVid video encoding.

Benchmarks of Intel Core 2 Duo CPUs for Socket 775

This chart shows how well the Intel E8400 performs in comparison with other CPUs from Core 2 Duo family. The "Specs" column in the chart shows differences between major specs for all processors. All Core 2 Duo chips in the graph below have 2 cores and 65 Watt TDP.

To view comprehensive comparison, including specifications and individual benchmarks, between any processor from the chart and the Intel Core 2 Duo E8400, please click on the >   icon. This feature requires javascript, and will open in a popup window.

ModelRelative performance Specs 
Core 2 Duo E8600
109.3%3.33 GHz>
Core 2 Duo E8500
104.2%3.17 GHz>
Core 2 Duo E8400
100.0%3 GHz 
Core 2 Duo E7600
96.5%3.07 GHz>
Core 2 Duo E8300
95.3%2.83 GHz>
Core 2 Duo E7500
93.4%2.93 GHz>
Core 2 Duo E6850
90.6%3 GHz>
Core 2 Duo E8200
90.4%2.67 GHz>
Core 2 Duo E7400
89.5%2.8 GHz>
Core 2 Duo E7200
82.6%2.53 GHz>
Core 2 Duo E6750
81.8%2.67 GHz>
Core 2 Duo E6700
81.7%2.67 GHz>
Core 2 Duo E6600
74.8%2.4 GHz>
Core 2 Duo E6550
73.5%2.33 GHz>
Core 2 Duo E4600
70.9%2.4 GHz>
Core 2 Duo E4500
66.2%2.2 GHz>
Core 2 Duo E6400
65.3%2.13 GHz>
Core 2 Duo E6320
60.4%1.87 GHz>
Core 2 Duo E6300
58.6%1.87 GHz>

Intel CPUs with similar multi-threaded performance

This chart shows Intel microprocessors with approximately the same level of performance as the Intel E8400. All Intel CPUs in the graph come with 2 cores.

ModelRelative performance Specs 
Celeron G540
108.1%2.5 GHz, 2MB, 65W>
Celeron G1610T
106.2%2.3 GHz, 2MB, 35W>
Celeron G530
104.4%2.4 GHz, 2MB, 65W>
Core 2 Duo E8500
104.2%3.17 GHz, 65W>
Pentium G630T
102.3%2.3 GHz, 3MB, 35W>
Pentium E6800
101.0%3.33 GHz, 65W>
Core 2 Duo E8400
100.0%3 GHz, 65W 
Pentium G6950
99.0%2.8 GHz, 3MB, 73W>
Pentium G620T
97.5%2.2 GHz, 3MB, 35W>
Celeron G550T
97.4%2.2 GHz, 2MB, 35W>
Pentium E6700
97.4%3.2 GHz, 65W>
Core 2 Duo E7600
96.5%3.07 GHz, 65W>
Core 2 Duo E8300
95.3%2.83 GHz, 65W>

AMD CPUs with similar multi-threaded performance

This benchmark chart includes AMD processors with multi-threaded performance, similar to the Intel Core 2 Duo E8400. For the differences between most important features of listed microprocessors please see the "Specs" column.

ModelRelative performance Specs 
AMD Phenom X4 9150e
101.8%4C, 1.8 GHz, 2MB>
AMD Phenom X3 8750 (non-BE)
101.1%3C, 2.4 GHz, 2MB>
AMD Phenom X4 9100e
101.0%4C, 1.8 GHz, 2MB>
AMD Phenom X3 8750 (BE)
101.0%3C, 2.4 GHz, 2MB>
AMD A6-3500
100.5%3C, 2.1 GHz>
AMD Phenom II X2 521
100.2%2C, 3.5 GHz>
Intel Core 2 Duo E8400
100.0%2C, 3 GHz 
AMD Phenom II X2 560 BE
99.4%2C, 3.3 GHz, 6MB>
AMD Athlon II X2 270
99.2%2C, 3.4 GHz>
AMD Phenom II X2 511
98.1%2C, 3.4 GHz>
AMD Athlon II X3 405e (C3)
97.9%3C, 2.3 GHz>
AMD Athlon II X3 405e (C2)
97.6%3C, 2.3 GHz>
AMD Phenom X3 8600B (B3)
97.5%3C, 2.3 GHz, 2MB>

Core 2 Duo E8400 compared to the fastest desktop CPUs

This chart shows how the Core 2 Duo E8400 stands against the fastest desktop x86 processors from our benchmark database.

ModelRelative performance Specs 
Core i7-4770K
356.3%4C, 3.5 GHz, HT>
Core i7-4771
355.4%4C, 3.5 GHz, HT>
Core i7-4770
352.3%4C, 3.4 GHz, HT>
Core i7-3770
341.3%4C, 3.4 GHz, HT>
Core i7-3770K
340.6%4C, 3.5 GHz, HT>
Core i7-4770S
339.9%4C, 3.1 GHz, HT>
Core i7-3770S
325.7%4C, 3.1 GHz, HT>
Core i7-2700K
320.3%4C, 3.5 GHz, HT>
Core i7-2600
314.4%4C, 3.4 GHz, HT>
Core i7-2600K
314.4%4C, 3.4 GHz, HT>
Core i5-4670
299.0%4C, 3.4 GHz>
Core i5-4670K
297.8%4C, 3.4 GHz>
Core 2 Duo E8400
100.0%2C, 3 GHz 

Popular performance comparisons

This benchmark graph demonstrates relative multi-threading performance of microprocessors, that are most commonly compared to the Intel E8400.

ModelRelative performance Specs 
Core 2 Quad Q9550
169.3%4C, 2.83 GHz>
Core 2 Quad Q9400
153.7%4C, 2.67 GHz>
Pentium G3220
140.5%2C, 3 GHz, 3MB>
Core 2 Quad Q6600
133.5%4C, 2.4 GHz>
Core 2 Duo E8600
109.3%2C, 3.33 GHz>
Core 2 Duo E8500
104.2%2C, 3.17 GHz>
Core 2 Duo E8400
100.0%2C, 3 GHz 
Core 2 Duo E7500
93.4%2C, 2.93 GHz>
Core 2 Duo E6850
90.6%2C, 3 GHz>
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About the CPU

Intel Core 2 Duo E8400 is a dual-core desktop CPU, operating at 3 GHz. The processor comes with 6MB L2 cache, and it fits into 65 Watt thermal envelope. More details about this CPU you can find on the E8400 specs page.

More information

For averaged single- threaded performance please see Intel E8400 single-threaded benchmarks page.

Comparison of all tested Core 2 Duo processors can be found on the Intel Core 2 Duo benchmarks page.

Color codes

The benchmark charts use the following colors:
A6-Series
Athlon II X2
Athlon II X3
Celeron Dual-Core
Core 2 Duo
Core 2 Quad
Core i5
Core i7
Pentium Dual-Core
Phenom II X2
Phenom X3
Phenom X4