Intel Core 2 Quad Q8400

Intel Core 2 Quad Q8400
Benchmarks & Specs

Last updated:
The Intel Core 2 Quad Q8400 was once a widely appreciated component for many computers. It offered users a solid foundation for various everyday tasks. Its then state-of-the-art quad-core design is particularly noteworthy. This enabled smooth multitasking during operation; numerous applications ran efficiently side by side.

This was a noticeable step in the overall user experience. Manufacturing took place in the 45 nm process, which was advanced for its time. This not only contributed to compactness but also to improved energy efficiency of the chip. Another plus was the generous 4 MB Level 2 Cache. This supported the rapid provision of data for the processing cores.

The underlying architecture is known under the code name Yorkfield. It built on the proven Penryn microarchitecture and ensured stability in the system. With 17 GB/s maximum memory bandwidth, a fast data flow between processor and memory was achieved. This processor was ideally suited for everyday office work and media playback.

It was often completely sufficient for light gaming as well. It was a reliable component in many computer systems. We were surprised at the time by how well its basic performance could still convince even under load. It embodied the important entry of multi-core processors into the broad market.
  • Quad-Core Design
  • 45-nm Manufacturing
  • 4 MB Level 2 Cache
  • Solid performance for everyday tasks

Performance Overview
Average performance across multiple benchmarks

Single-core performance
Rank ? / ?
In segment Desktop
Multi-core performance
Rank ? / ?
In segment Desktop
Geekbench 5, 64bit Single-Core

Geekbench 5, 64bit Single-Core
Single-core performance

Intel Core2 Duo E6750
2C / 2T · 2.66 GHz
371
AMD Phenom II X4 B95
4C / 4T · 3.00 GHz
370
Intel Core 2 Quad Q8400
4C / 4T · 2.66 GHz
369
AMD A8-3800
AMD A8-3800 100 %
4C / 4T · 2.70 GHz
368
Intel Core2 Duo E7200
2C / 2T · 2.53 GHz
368
Geekbench 5, 64bit Multi-Core

Geekbench 5, 64bit Multi-Core
Multi-core performance

AMD Athlon II X4 615e
4C / 4T · 2.50 GHz
1,161
AMD A8-3850
AMD A8-3850 100 %
4C / 4T · 2.90 GHz
1,159
Intel Core 2 Quad Q8400
4C / 4T · 2.66 GHz
1,155
Intel Celeron G1830
2C / 2T · 2.80 GHz
1,150
Intel Core i3-3220T
2C / 4T · 2.80 GHz
1,141
CPU-Z Benchmark 17 Multi-Core

CPU-Z Benchmark 17 Multi-Core
Multi-core performance

Intel Core i3-4130
2C / 4T · 3.40 GHz
921
AMD Phenom II X6 1090T
6C / 6T · 3.20 GHz
895
Intel Core 2 Quad Q8400
4C / 4T · 2.66 GHz
894
Intel Core 2 Quad Q9400
4C / 4T · 2.66 GHz
891
Intel Core 2 Quad Q9300
4C / 4T · 2.50 GHz
855

More benchmarks

At a glance

PropertyValue
FamilyIntel Core2 Quad (19)
CPU groupIntel Core 2 Quad Q8000/Q9000 (16)
ArchitectureYorkfield (Penryn)
Technology45 nm
SegmentDesktop
SocketLGA 775
Generation2
Predecessor
Successor

CPU Cores and Base Frequency

PropertyValue
CPU Cores / Threads4 / 4
Hyperthreading / SMT
Core architecturenormal
Cores: 4x
Frequency: 2.66 GHz
Turbo Frequency (1 Core):
Turbo Frequency (4 Cores):
L2-Cache4.00 MB
L3-Cache
OverclockingNo

Memory & PCIe

Memory typeMemory bandwidth
DDR3-1066
DDR2-800
17.1 GB/s
12.8 GB/s
PropertyValue
Max. Memory16 GB
Memory channels2
ECC
PCIe
PCIe Bandwidth

Thermal Management

PropertyValue
TDP95 W
TDP (PL2)
TDP up
TDP down
T. junction max.

Technical details

PropertyValue
Chip designMonolithic
AES-NI
Operating systemsWindows 10, Linux
Instruction setx86-64 (64 bit)
ISA extensionsMMX, SSE2, SSE3, SSE4.1
Release dateQ2/2009
Release price
Documents
Intel Core 2 Quad Q8400
Intel Core 2 Quad Q8400
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