Intel Core 2 Quad Q8400 Benchmark, Test and specs

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The Intel Core 2 Quad Q8400 was released in Q2/2009 and has 4 cores. The processor can process 4 threads simultaneously and uses a mainboard with the socket LGA 775. In the Geekbench 5 benchmark, the Intel Core 2 Quad Q8400 achieved a result of 369 points (single-core) or 1,155 points (multi-core).
Intel Core 2 Quad Q8400

At a glance

Name: Intel Core 2 Quad Q8400
Family: Intel Core2 Quad (19)
CPU group: Intel Core 2 Quad Q8000/Q9000 (16)
Architecture: Yorkfield (Penryn)
Technology: 45 nm
Segment: Desktop
Generation: 2
Predecessor: --
Successor: --

CPU Cores and Base Frequency

The Intel Core 2 Quad Q8400 has 4 cores. The clock frequency of the Intel Core 2 Quad Q8400 is 2.66 GHz. An initial performance assessment can be made using the number of CPU cores.

CPU Cores / Threads: 4 / 4
Core architecture: normal
Cores: 4x
Hyperthreading / SMT: No
Overclocking: No
Frequency: 2.66 GHz
Turbo Frequency (1 Core): --
Turbo Frequency (4 Cores): --

Memory & PCIe

The Intel Core 2 Quad Q8400 supports a maximum of 16 GB memory. Depending on the mainboard, the processor can use a maximum of 2 (Dual Channel) memory channels. This results in a maximum bandwidth of the main memory of 17.1 GB/s.

Memory type: Memory bandwidth:
DDR3-1066
DDR2-800
17.1 GB/s
12.8 GB/s
Max. Memory: 16 GB
Memory channels: 2 (Dual Channel)
ECC: No
PCIe:
PCIe Bandwidth: --

Thermal Management

The Intel Core 2 Quad Q8400 has a TDP of 95 W. Based on the TDP, the system manufacturer can and must adapt the cooling solution to the processor.

TDP (PL1 / PBP): 95 W
TDP (PL2): --
TDP up: --
TDP down: --
Tjunction max.: --

Technical details

Modern production reduces the waste heat of a processor and increases its efficiency. The Intel Core 2 Quad Q8400 is made in 45 nm and has 4.00 MB cache.

Technology: 45 nm
Chip design: Monolithic
Socket: LGA 775
L2-Cache: 4.00 MB
L3-Cache: --
AES-NI: No
Operating systems: Windows 10, Linux
Virtualization: VT-x, VT-d
Instruction set (ISA): x86-64 (64 bit)
ISA extensions: MMX, SSE2, SSE3, SSE4.1
Release date: Q2/2009
Release price: --
Part Number: --
Documents: --

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Benchmark results

Verified Benchmark results
The benchmark results for the Intel Core 2 Quad Q8400 have been carefully checked by us. We only publish benchmark results that have been created by us or that have been submitted by a visitor and then checked by a team member. All results are based on and fullfill our benchmark guidelines.

Screenshots:

Geekbench 5, 64bit (Single-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
AMD Athlon II X2 220 AMD Athlon II X2 220
2C 2T @ 2.80 GHz
371
Intel Core2 Duo E6750 Intel Core2 Duo E6750
2C 2T @ 2.66 GHz
371
AMD Phenom II X4 B95 AMD Phenom II X4 B95
4C 4T @ 3.00 GHz
370
Intel Core 2 Quad Q8400 Intel Core 2 Quad Q8400
4C 4T @ 2.66 GHz
369
AMD Athlon II X2 240e AMD Athlon II X2 240e
2C 2T @ 2.80 GHz
369
Intel Pentium E5400 Intel Pentium E5400
2C 2T @ 2.70 GHz
368
Intel Core2 Duo E7200 Intel Core2 Duo E7200
2C 2T @ 2.53 GHz
368

Geekbench 5, 64bit (Multi-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
Intel Core 2 Quad Q9400 Intel Core 2 Quad Q9400
4C 4T @ 2.66 GHz
1163
AMD Athlon II X4 615e AMD Athlon II X4 615e
4C 4T @ 2.50 GHz
1161
AMD A8-3850 AMD A8-3850
4C 4T @ 2.90 GHz
1159
Intel Core 2 Quad Q8400 Intel Core 2 Quad Q8400
4C 4T @ 2.66 GHz
1155
AMD Athlon II X4 620 AMD Athlon II X4 620
4C 4T @ 2.60 GHz
1155
Intel Celeron G1830 Intel Celeron G1830
2C 2T @ 2.80 GHz
1150
Intel Core i3-540 Intel Core i3-540
2C 4T @ 3.06 GHz
1141

Estimated results for PassMark CPU Mark

Some of the CPUs listed below have been benchmarked by CPU-monkey. However the majority of CPUs have not been tested and the results have been estimated by a CPU-monkey’s secret proprietary formula. As such they do not accurately reflect the actual Passmark CPU mark values and are not endorsed by PassMark Software Pty Ltd.
AMD Phenom II X2 555 AMD Phenom II X2 555
2C 2T @ 3.20 GHz
2060
AMD Phenom II X2 B57 AMD Phenom II X2 B57
2C 2T @ 3.20 GHz
2060
Intel Core i3-3240T Intel Core i3-3240T
2C 4T @ 2.90 GHz
2030
Intel Core 2 Quad Q8400 Intel Core 2 Quad Q8400
4C 4T @ 2.66 GHz
2029
Intel Core i3-2130 Intel Core i3-2130
2C 4T @ 3.40 GHz
2020
AMD Phenom II X4 830 AMD Phenom II X4 830
4C 4T @ 2.80 GHz
2020
Intel Core 2 Quad Q9505 Intel Core 2 Quad Q9505
4C 4T @ 2.83 GHz
2017

CPU-Z Benchmark 17 (Multi-Core)

The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.
AMD Phenom II X6 1100T AMD Phenom II X6 1100T
6C 6T @ 3.30 GHz
923
Intel Core i3-4130 Intel Core i3-4130
2C 4T @ 3.40 GHz
921
AMD Phenom II X6 1090T AMD Phenom II X6 1090T
6C 6T @ 3.20 GHz
895
Intel Core 2 Quad Q8400 Intel Core 2 Quad Q8400
4C 4T @ 2.66 GHz
894
Intel Core 2 Quad Q9400 Intel Core 2 Quad Q9400
4C 4T @ 2.66 GHz
891
Intel Core 2 Quad Q9300 Intel Core 2 Quad Q9300
4C 4T @ 2.50 GHz
855
AMD FX-6100 AMD FX-6100
6C 6T @ 3.30 GHz
853

Benchmarks





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