Core i7-10700KF vs Core 2 Duo E8400

VS

Aggregate performance score

Core 2 Duo E8400
2008
2 cores / 2 threads, 65 Watt
0.73
Core i7-10700KF
2020
8 cores / 16 threads, 125 Watt
11.69
+1501%

Core i7-10700KF outperforms Core 2 Duo E8400 by a whopping 1501% based on our aggregate benchmark results.

Primary details

Comparing Core 2 Duo E8400 and Core i7-10700KF processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking2671663
Place by popularitynot in top-100not in top-100
Market segmentDesktop processorDesktop processor
Power efficiency1.068.85
Architecture codenameWolfdale (2008−2010)Comet Lake (2020)
Release date1 January 2008 (16 years ago)30 April 2020 (4 years ago)

Detailed specifications

Core 2 Duo E8400 and Core i7-10700KF 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 cores2 (Dual-core)8 (Octa-Core)
Threads216
Base clock speed3 GHz3.8 GHz
Boost clock speed3 GHz5.1 GHz
Bus rate1333 MHz8 GT/s
L1 cache64 KB (per core)64K (per core)
L2 cache6 MB (shared)256K (per core)
L3 cache0 KB16 MB (shared)
Chip lithography45 nm14 nm
Die size104 mm2no data
Maximum core temperatureno data100 °C
Maximum case temperature (TCase)72 °C72 °C
Number of transistors410 millionno data
64 bit support++
Windows 11 compatibility-+
Unlocked multiplier-+
VID voltage range0.85V-1.3625Vno data

Compatibility

Information on Core 2 Duo E8400 and Core i7-10700KF 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 configuration11
SocketLGA775FCLGA1200
Power consumption (TDP)65 Watt125 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Duo E8400 and Core i7-10700KF. You'll probably need this information if you require some particular technology.

Instruction set extensionsno dataIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI-+
AVX-+
Enhanced SpeedStep (EIST)++
Turbo Boost Technology-2.0
Hyper-Threading Technology-+
Idle States++
Thermal Monitoring++
Demand Based Switching-no data
Turbo Boost Max 3.0no data+
FSB parity-no data

Security technologies

Core 2 Duo E8400 and Core i7-10700KF technologies aimed at improving security, for example, by protecting against hacks.

TXT++
EDB++
Secure Keyno data+
Identity Protection-+
SGXno dataYes with Intel® ME
OS Guardno data+

Virtualization technologies

Virtual machine speed-up technologies supported by Core 2 Duo E8400 and Core i7-10700KF are enumerated here.

VT-d++
VT-x++
EPTno data+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Duo E8400 and Core i7-10700KF. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR1, DDR2, DDR3DDR4-2933
Maximum memory sizeno data128 GB
Max memory channelsno data2
Maximum memory bandwidthno data45.8 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardOn certain motherboards (Chipset feature)no data

Peripherals

Specifications and connection of peripherals supported by Core 2 Duo E8400 and Core i7-10700KF.

PCIe version2.03.0
PCI Express lanesno data16

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.

Core 2 Duo E8400 0.73
i7-10700KF 11.69
+1501%

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.

Core 2 Duo E8400 1165
i7-10700KF 18569
+1494%

GeekBench 5 Single-Core

GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.

Core 2 Duo E8400 370
i7-10700KF 1730
+368%

GeekBench 5 Multi-Core

GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.

Core 2 Duo E8400 603
i7-10700KF 8230
+1265%

Gaming performance

Pros & cons summary


Performance score 0.73 11.69
Recency 1 January 2008 30 April 2020
Physical cores 2 8
Threads 2 16
Chip lithography 45 nm 14 nm
Power consumption (TDP) 65 Watt 125 Watt

Core 2 Duo E8400 has 92.3% lower power consumption.

i7-10700KF, on the other hand, has a 1501.4% higher aggregate performance score, an age advantage of 12 years, 300% more physical cores and 700% more threads, and a 221.4% more advanced lithography process.

The Core i7-10700KF is our recommended choice as it beats the Core 2 Duo E8400 in performance tests.


Should you still have questions on choice between Core 2 Duo E8400 and Core i7-10700KF, ask them in Comments section, and we shall answer.

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Intel Core 2 Duo E8400
Core 2 Duo E8400
Intel Core i7-10700KF
Core i7-10700KF

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Community ratings

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Questions & comments

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