Core 2 Duo P8400 vs Core i7-6822EQ

VS

Aggregate performance score

Core i7-6822EQ
2015
4 cores / 8 threads, 25 Watt
3.42
+522%

Core i7-6822EQ outperforms Core 2 Duo P8400 by a whopping 522% based on our aggregate benchmark results.

Primary details

Comparing Core i7-6822EQ and Core 2 Duo P8400 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking15742838
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation0.31no data
Market segmentLaptopLaptop
SeriesIntel Core i7Intel Core 2 Duo
Power efficiency12.472.01
Architecture codenameSkylake (2015−2016)Penryn (2008−2011)
Release date12 October 2015 (9 years ago)15 July 2008 (16 years ago)
Launch price (MSRP)$378$209

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Core i7-6822EQ and Core 2 Duo P8400 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 cores4 (Quad-Core)2 (Dual-core)
Threads82
Base clock speedno data2.26 GHz
Boost clock speed2 GHz2.26 GHz
Bus typeDMI 3.0no data
Bus rate4 × 8 GT/s1066 MHz
Multiplier20no data
L1 cache256 KB128 KB
L2 cache1 MB3 MB
L3 cache8 MB3 MB L2 Cache
Chip lithography14 nm45 nm
Die size122 mm2107 mm2
Maximum core temperatureno data105 °C
Number of transistorsno data410 Million
64 bit support++
Windows 11 compatibility--
VID voltage rangeno data1.05V-1.15V

Compatibility

Information on Core i7-6822EQ and Core 2 Duo P8400 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 configuration1 (Uniprocessor)no data
Socketno dataBGA479,PBGA479,PGA478
Power consumption (TDP)25 Watt25 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-6822EQ and Core 2 Duo P8400. You'll probably need this information if you require some particular technology.

AES-NI+-
AVX+-
vPro+no data
Enhanced SpeedStep (EIST)++
Turbo Boost Technologyno data-
Hyper-Threading Technologyno data-
TSX+-
Idle Statesno data+
Demand Based Switchingno data-
FSB parityno data-

Security technologies

Core i7-6822EQ and Core 2 Duo P8400 technologies aimed at improving security, for example, by protecting against hacks.

TXT++
EDBno data+

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-6822EQ and Core 2 Duo P8400 are enumerated here.

VT-d+no data
VT-x++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-6822EQ and Core 2 Duo P8400. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesLPDDR3-1866no data
Maximum memory size64 GBno data
Max memory channels2no data
Maximum memory bandwidth34.134 GB/sno data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardIntel HD Graphics 530no data

Peripherals

Specifications and connection of peripherals supported by Core i7-6822EQ and Core 2 Duo P8400.

PCIe version3.0no data
PCI Express lanes16no data

Synthetic benchmark performance

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


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.

i7-6822EQ 3.42
+522%
Core 2 Duo P8400 0.55

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

i7-6822EQ 5241
+517%
Core 2 Duo P8400 849

Gaming performance

Pros & cons summary


Performance score 3.42 0.55
Recency 12 October 2015 15 July 2008
Physical cores 4 2
Threads 8 2
Chip lithography 14 nm 45 nm

i7-6822EQ has a 521.8% higher aggregate performance score, an age advantage of 7 years, 100% more physical cores and 300% more threads, and a 221.4% more advanced lithography process.

The Core i7-6822EQ is our recommended choice as it beats the Core 2 Duo P8400 in performance tests.


Should you still have questions on choice between Core i7-6822EQ and Core 2 Duo P8400, ask them in Comments section, and we shall answer.

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Intel Core i7-6822EQ
Core i7-6822EQ
Intel Core 2 Duo P8400
Core 2 Duo P8400

Similar processor comparisons

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Community ratings

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Questions & comments

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