Intel Core 2 Quad Q9400

Intel Core 2 Quad Q9400
Benchmarks & Specs

Last updated:
The Intel Core 2 Quad Q9400 was considered a solid processor. It laid a reliable foundation for various computer applications. With its four cores, it enabled good multitasking performance. Users could thus use multiple programs smoothly and efficiently simultaneously. Manufacturing in the 45 nm process represented an important step in production technology.

The robust Yorkfield architecture formed the technical basis, which contributed to its remarkable stability. A 6 MB L2 cache significantly supported fast data access. A maximum memory bandwidth of 17 GB/s was completely sufficient for many tasks. We saw the Intel Core 2 Quad Q9400 as a very consistent component.

It showed what performance could be achieved in its class. Its reliability convinced many users for years. The processor was a popular choice for everyday systems.
  • Four Cores for Multitasking
  • 45 nm Manufacturing Process
  • 6 MB L2 Cache
  • High Reliability

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

AMD A4-4020
AMD A4-4020 100 %
2C / 2T · 3.40 GHz
379
AMD Phenom II X3 720
3C / 3T · 2.80 GHz
379
Intel Core 2 Quad Q9400
4C / 4T · 2.66 GHz
378
AMD Athlon II X4 638
4C / 4T · 2.70 GHz
374
AMD Athlon II X3 440
3C / 3T · 3.00 GHz
374
Geekbench 5, 64bit Multi-Core

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

AMD Phenom II X4 820
4C / 4T · 2.80 GHz
1,177
Intel Core i3-550
2C / 4T · 3.20 GHz
1,170
Intel Core 2 Quad Q9400
4C / 4T · 2.66 GHz
1,163
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
CPU-Z Benchmark 17 Single-Core

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

Intel Core i7-920
4C / 8T · 2.93 GHz
242
AMD FX-8350
AMD FX-8350 105 %
8C / 8T · 4.20 GHz
241
Intel Core 2 Quad Q9400
4C / 4T · 2.66 GHz
230
AMD FX-4300
4C / 4T · 3.80 GHz
224
AMD FX-8320
8C / 8T · 4.00 GHz
223
CPU-Z Benchmark 17 Multi-Core

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

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
AMD FX-6100
6C / 6T · 3.30 GHz
853

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-Cache6.00 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 dateQ3/2008
Release price
Documents
Intel Core 2 Quad Q9400
Intel Core 2 Quad Q9400
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