i5-10400 vs Xeon E5645

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Aggregate performance score

Xeon E5645
2010
6 cores / 12 threads, 80 Watt
3.18
Core i5-10400
2020
6 cores / 12 threads, 65 Watt
7.63
+140%

Core i5-10400 outperforms Xeon E5645 by a whopping 140% based on our aggregate benchmark results.

Primary details

Comparing Xeon E5645 and Core i5-10400 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking1618971
Place by popularitynot in top-10093
Cost-effectiveness evaluation1.38no data
Market segmentServerDesktop processor
Power efficiency3.7611.10
Architecture codenameWestmere-EP (2010−2011)Comet Lake (2020)
Release date16 March 2010 (14 years ago)30 April 2020 (4 years ago)
Launch price (MSRP)$294no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Xeon E5645 and Core i5-10400 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 cores6 (Hexa-Core)6 (Hexa-Core)
Threads1212
Base clock speed2.4 GHz2.9 GHz
Boost clock speed2.67 GHz4.3 GHz
Bus rateno data8 GT/s
L1 cache64 KB (per core)64K (per core)
L2 cache256 KB (per core)256K (per core)
L3 cache12 MB (shared)12 MB (shared)
Chip lithography32 nm14 nm
Die size239 mm2no data
Maximum core temperature76 °C100 °C
Maximum case temperature (TCase)no data72 °C
Number of transistors1,170 millionno data
64 bit support++
Windows 11 compatibility-+

Compatibility

Information on Xeon E5645 and Core i5-10400 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 configuration21
SocketFCLGA1366,LGA1366FCLGA1200
Power consumption (TDP)80 Watt65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E5645 and Core i5-10400. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.2Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI++
AVX-+
Enhanced SpeedStep (EIST)++
Turbo Boost Technology1.02.0
Hyper-Threading Technology++
Idle States++
Thermal Monitoring-+
Demand Based Switching+no data
PAE40 Bitno data
Turbo Boost Max 3.0no data-

Security technologies

Xeon E5645 and Core i5-10400 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 Xeon E5645 and Core i5-10400 are enumerated here.

VT-d++
VT-x++
EPT++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E5645 and Core i5-10400. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3DDR4-2666
Maximum memory size288 GB128 GB
Max memory channels32
Maximum memory bandwidth32 GB/s41.6 GB/s
ECC memory support+-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataIntel UHD Graphics 630
Max video memoryno data64 GB
Quick Sync Video-+
Clear Videono data+
Clear Video HDno data+
Graphics max frequencyno data1.1 GHz
InTru 3Dno data+

Graphics interfaces

Available interfaces and connections of Xeon E5645 and Core i5-10400 integrated GPUs.

Number of displays supportedno data3

Graphics image quality

Maximum display resolutions supported by Xeon E5645 and Core i5-10400 integrated GPUs, including resolutions over different interfaces.

4K resolution supportno data+
Max resolution over HDMI 1.4no data4096 x 2160@30Hz
Max resolution over eDPno data4096 x 2304@60Hz
Max resolution over DisplayPortno data4096 x 2304@60Hz

Graphics API support

APIs supported by Xeon E5645 and Core i5-10400 integrated GPUs, sometimes API versions are included.

DirectXno data12
OpenGLno data4.5

Peripherals

Specifications and connection of peripherals supported by Xeon E5645 and Core i5-10400.

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.

Xeon E5645 3.18
i5-10400 7.63
+140%

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.

Xeon E5645 5048
i5-10400 12115
+140%

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.

Xeon E5645 372
i5-10400 1445
+288%

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.

Xeon E5645 1842
i5-10400 5534
+200%

Gaming performance

Pros & cons summary


Performance score 3.18 7.63
Recency 16 March 2010 30 April 2020
Chip lithography 32 nm 14 nm
Power consumption (TDP) 80 Watt 65 Watt

i5-10400 has a 139.9% higher aggregate performance score, an age advantage of 10 years, a 128.6% more advanced lithography process, and 23.1% lower power consumption.

The Core i5-10400 is our recommended choice as it beats the Xeon E5645 in performance tests.

Be aware that Xeon E5645 is a server/workstation processor while Core i5-10400 is a desktop one.


Should you still have questions on choice between Xeon E5645 and Core i5-10400, ask them in Comments section, and we shall answer.

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Intel Xeon E5645
Xeon E5645
Intel Core i5-10400
Core i5-10400

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Community ratings

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Questions & comments

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