Intel Core i7-10700KA vs Intel Core 2 Duo E8400

Intel Core i7-10700KA on Amazon USA
Intel Core 2 Duo E8400 on Amazon USA

Comparison of the technical characteristics between the processors, with the Intel Core i7-10700KA on one side and the Intel Core 2 Duo E8400 on the other side. The first is dedicated to the desktop sector, It has 8 cores, 16 threads, a maximum frequency of 5.1GHz. The second is used on the desktop segment, it has a total of 2 cores, 2 threads, its turbo frequency is set to 3.0 GHz. The following table also compares the lithography, the number of transistors (if indicated), the amount of cache memory, the maximum RAM memory capacity, the type of memory accepted, the release date, the maximum number of PCIe lanes, the values ​​obtained in Geekbench 4 and Cinebench R15.


Processor Intel Core i7-10700KA Intel Core 2 Duo E8400
Market (main) Desktop Desktop
ISA x86-64 (64 bit) x86-64 (64 bit)
Microarchitecture Comet Lake Penryn
Core name Comet Lake-S Wolfdale
Family Core i7-10000 Core 2 Duo 8000
Part number(s), S-Spec BX8070110700K,
Release date Q4 2020 Q1 2008
Lithography 14 nm+++ 45 nm
Transistors - 410,000,000
Cores 8 2
Threads 16 2
Base frequency 3.8 GHz 3.0 GHz
Turbo frequency 5.1 GHz -
Cache memory 16 MB 6 MB
Max memory capacity 128 GB 8 GB
Memory types DDR4-2933 DDR2-800
Max PCIe lanes 16 16
TDP 125 W 65 W
Suggested PSU 650W ATX Power Supply 600W ATX Power Supply
GPU integrated graphics Intel UHD Graphics 630 (Comet Lake) None
GPU execution units 24 -
GPU shading units 192 -
GPU base clock rate 350 MHz -
GPU max clock rate 1200 MHz -
GPU FP32 floating point 460.8 GFLOPS -
Socket LGA1200 LGA775
Compatible motherboard Socket LGA 1200 Motherboard  Socket LGA 775 Motherboard 
Maximum temperature 100°C 72.4°C
Cinebench R15 single thread 220 101
Cinebench R15 multi-thread 2,005 175
Cinebench R23 single thread 1,290 450
Cinebench R23 multi-thread 12,704 854
PassMark single thread 3,080 1,230
PassMark CPU Mark 19,800 1,170
(Windows 64-bit)
Geekbench 4 single core
6,204 1,831
(Windows 64-bit)
Geekbench 4 multi-core
35,139 3,028
GFLOPS performance
612.88 GFLOPS 28.9 GFLOPS
(Multi-core / watt performance)
Performance / watt ratio
281 pts / W 47 pts / W

We can better compare what are the technical differences between the two processors.

Suggested PSU: We assume that we have An ATX computer case, a high end graphics card, 16GB RAM, a 512GB SSD, a 1TB HDD hard drive, a Blu-Ray drive. We will have to rely on a more powerful power supply if we want to have several graphics cards, several monitors, more memory, etc.

Price: For technical reasons, we cannot currently display a price less than 24 hours, or a real-time price. This is why we prefer for the moment not to show a price. You should refer to the respective online stores for the latest price, as well as availability.

The processor Intel Core i7-10700KA has more cores, the maximum frequency of Intel Core i7-10700KA is greater, that the thermal dissipation power of Intel Core 2 Duo E8400 is less. The Intel Core i7-10700KA was designed earlier.

Performances :

Performance comparison between the two processors, for this we consider the results generated on benchmark software such as Geekbench 4.

Cinebench R15 - Multi-thread & single thread score
Intel Core i7-10700KA 220
Intel Core 2 Duo E8400 101

In single core, the difference is 118%. In multi-core, the differential gap is 1046%.

Cinebench R15 evaluates the performance of CPU calculations by restoring a photorealistic 3D scene. The scene has 2,000 objects, 300,000 polygons, uses sharp and fuzzy reflections, bright areas, shadows, procedural shaders, antialiasing, and so on. The faster the rendering of the scene is created, the more powerful the PC is, with a high number of points.

Cinebench R23 - Multi-thread & single thread score
Intel Core i7-10700KA 1,290
Intel Core 2 Duo E8400 450

In single core, the difference is 187%. In multi-core, the differential gap is 1388%.

Cinebench R23 is cross-platform testing software that allows you to assess the hardware capabilities of a device such as a computer, tablet, server. This version of Cinebench takes into account recent developments in processors with multiple cores and the latest improvements in rendering techniques. The evaluation is ultimately even more relevant. The test scene contains no less than 2,000 objects and more than 300,000 polygons in total.

PassMark - CPU Mark & single thread
Intel Core i7-10700KA 3,080
Intel Core 2 Duo E8400 1,230

In single core, the difference is 150%. In multi-core, the differential gap is 1592%.

PassMark is a benchmarking software that performs several performance tests including prime numbers, integers, floating point, compression, physics, extended instructions, encoding, sorting. The higher the score is, the higher is the device capacity.

On Windows 64-bit:

Geekbench 4 - Multi-core & single core score - Windows 64-bit
Intel Core i7-10700KA 6,204
Intel Core 2 Duo E8400 1,831

In single core, the difference is 239%. In multi-core, the differential gap is 1060%.

On Linux 64-bit:

Geekbench 4 - Multi-core & single core score - Linux 64-bit
Intel Core i7-10700KA 6,908
Intel Core 2 Duo E8400 2,106

In single core, the difference is 228%. In multi-core, the differential gap is 1164%.

On Mac OS X 64-bit:

Geekbench 4 - Multi-core & single core score - Mac OS X 64-bit
Intel Core i7-10700KA 6,124
Intel Core 2 Duo E8400 2,089

In single core, the difference is 193%. In multi-core, the differential gap is 920%.

Geekbench 4 is a complete benchmark platform with several types of tests, including data compression, images, AES encryption, SQL encoding, HTML, PDF file rendering, matrix computation, Fast Fourier Transform, 3D object simulation, photo editing, memory testing. This allows us to better visualize the respective power of these devices. For each result, we took an average of 250 values on the famous benchmark software.


Intel Core i7-10700KA AMD equivalentIntel Core 2 Duo E8400 AMD equivalent

See also:

Intel Core i7-10700KIntel Core i7-10700KF © 2021 - Information - XML sitemap - Privacy policy - Advertising policy - Contact


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