Xeon Gold 6226 vs Core 2 Quad Q8400

Primary details

Comparing Core 2 Quad Q8400 and Xeon Gold 6226 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	2165	537
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	2.73	20.49
Market segment	Desktop processor	Server
Series	no data	Intel Xeon Gold
Architecture codename	Yorkfield (2007−2009)	Cascade Lake (2019−2020)
Release date	April 2009 (15 years ago)	2 April 2019 (5 years ago)
Launch price (MSRP)	no data	$1,776
Current price	$41	$636 (0.4x MSRP)

Cost-effectiveness evaluation

Performance per price, higher is better.

Xeon Gold 6226 has 651% better value for money than Core 2 Quad Q8400.

Detailed specifications

Core 2 Quad Q8400 and Xeon Gold 6226 basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores	4 (Quad-Core)	12 (Dodeca-Core)
Threads	4	24
Base clock speed	2.66 GHz	2.7 GHz
Boost clock speed	2.67 GHz	3.7 GHz
Bus support	no data	4 × 8 GT/s
L1 cache	64K (per core)	768 KB
L2 cache	4 MB (shared)	12 MB
L3 cache	0 KB	19.25 MB
Chip lithography	45 nm	14 nm
Die size	2x 81 mm2	no data
Maximum core temperature	71 °C	86 °C
Maximum case temperature (TCase)	71 °C	no data
Number of transistors	456 million	no data
64 bit support	+	+
Windows 11 compatibility	-	+
Unlocked multiplier	No	No
VID voltage range	0.85V-1.3625V	no data

Compatibility

Information on Core 2 Quad Q8400 and Xeon Gold 6226 compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration	1	4 (Multiprocessor)
Socket	FCLGA775,LGA775	FCLGA3647
Power consumption (TDP)	95 Watt	125 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Quad Q8400 and Xeon Gold 6226. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512
AES-NI	-	+
AVX	no data	+
vPro	no data	+
Enhanced SpeedStep (EIST)	+	+
Speed Shift	no data	+
Turbo Boost Technology	-	2.0
Hyper-Threading Technology	-	+
TSX	no data	+
Idle States	+	no data
Thermal Monitoring	+	no data
Demand Based Switching	-	no data
Turbo Boost Max 3.0	no data	-
FSB parity	-	no data
Status	Discontinued	Launched

Security technologies

Core 2 Quad Q8400 and Xeon Gold 6226 technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	+
EDB	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Core 2 Quad Q8400 and Xeon Gold 6226 are enumerated here.

VT-d	no data	+
VT-x	+	+
EPT	no data	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Quad Q8400 and Xeon Gold 6226. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR1, DDR2, DDR3	DDR4-2933
Maximum memory size	no data	1 TB
Max memory channels	no data	6
Maximum memory bandwidth	no data	140.8 GB/s
ECC memory support	no data	+

Peripherals

Specifications and connection of peripherals supported by Core 2 Quad Q8400 and Xeon Gold 6226.

PCIe version	no data	3.0
PCI Express lanes	no data	48

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

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Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

Xeon Gold 6226 outperforms Core 2 Quad Q8400 by 886% based on our aggregate benchmark results.

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Pros & cons summary

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Performance score	1.34	13.21
Physical cores	4	12
Threads	4	24
Chip lithography	45 nm	14 nm
Power consumption (TDP)	95 Watt	125 Watt

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Should you still have questions on choice between Core 2 Quad Q8400 and Xeon Gold 6226, ask them in Comments section, and we shall answer.

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