Xeon E5645 vs i5-3570K

VS

Aggregate performance score

Core i5-3570K
2012
4 cores / 4 threads, 77 Watt
3.12
Xeon E5645
2010
6 cores / 12 threads, 80 Watt
3.18
+1.9%

Xeon E5645 outperforms Core i5-3570K by a minimal 2% based on our aggregate benchmark results.

Primary details

Comparing Core i5-3570K and Xeon E5645 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking16281618
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation0.521.38
Market segmentDesktop processorServer
SeriesIntel Core i5 (Desktop)no data
Power efficiency3.833.76
Architecture codenameIvy Bridge (2012−2013)Westmere-EP (2010−2011)
Release date29 April 2012 (12 years ago)16 March 2010 (14 years ago)
Launch price (MSRP)$235$294

Cost-effectiveness evaluation

Performance per price, higher is better.

Xeon E5645 has 165% better value for money than i5-3570K.

Detailed specifications

Core i5-3570K and Xeon E5645 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)6 (Hexa-Core)
Threads412
Base clock speed3.4 GHz2.4 GHz
Boost clock speed3.8 GHz2.67 GHz
Bus rate5 GT/sno data
L1 cache64K (per core)64 KB (per core)
L2 cache256K (per core)256 KB (per core)
L3 cache6 MB (shared)12 MB (shared)
Chip lithography22 nm32 nm
Die size160 mm2239 mm2
Maximum core temperature67 °C76 °C
Maximum case temperature (TCase)67 °Cno data
Number of transistors1,400 million1,170 million
64 bit support++
Windows 11 compatibility--
Unlocked multiplier+-

Compatibility

Information on Core i5-3570K and Xeon E5645 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 configuration12
SocketFCLGA1155FCLGA1366,LGA1366
Power consumption (TDP)77 Watt80 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i5-3570K and Xeon E5645. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.1, Intel® SSE4.2, Intel® AVXIntel® SSE4.2
AES-NI++
AVX+-
Enhanced SpeedStep (EIST)++
Turbo Boost Technology2.01.0
Hyper-Threading Technology-+
Idle States++
Thermal Monitoring+-
Demand Based Switchingno data+
PAEno data40 Bit
FDI+no data

Security technologies

Core i5-3570K and Xeon E5645 technologies aimed at improving security, for example, by protecting against hacks.

TXT-+
EDB++
Secure Key+no data
Identity Protection+-
Anti-Theft+no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i5-3570K and Xeon E5645 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i5-3570K and Xeon E5645. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3DDR3
Maximum memory size32 GB288 GB
Max memory channels23
Maximum memory bandwidth25.6 GB/s32 GB/s
ECC memory support-+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardIntel HD Graphics 4000no data
Quick Sync Video+-
Clear Video HD+no data
Graphics max frequency1.15 GHzno data
InTru 3D+no data

Graphics interfaces

Available interfaces and connections of Core i5-3570K and Xeon E5645 integrated GPUs.

Number of displays supported3no data

Peripherals

Specifications and connection of peripherals supported by Core i5-3570K and Xeon E5645.

PCIe version3.02.0

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.

i5-3570K 3.12
Xeon E5645 3.18
+1.9%

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.

i5-3570K 4957
Xeon E5645 5048
+1.8%

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.

i5-3570K 686
+84.4%
Xeon E5645 372

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.

i5-3570K 2052
+11.4%
Xeon E5645 1842

Gaming performance

Pros & cons summary


Performance score 3.12 3.18
Recency 29 April 2012 16 March 2010
Physical cores 4 6
Threads 4 12
Chip lithography 22 nm 32 nm
Power consumption (TDP) 77 Watt 80 Watt

i5-3570K has an age advantage of 2 years, a 45.5% more advanced lithography process, and 3.9% lower power consumption.

Xeon E5645, on the other hand, has a 1.9% higher aggregate performance score, and 50% more physical cores and 200% more threads.

Given the minimal performance differences, no clear winner can be declared between Core i5-3570K and Xeon E5645.

Note that Core i5-3570K is a desktop processor while Xeon E5645 is a server/workstation one.


Should you still have questions on choice between Core i5-3570K and Xeon E5645, ask them in Comments section, and we shall answer.

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Intel Core i5-3570K
Core i5-3570K
Intel Xeon E5645
Xeon E5645

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Community ratings

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Questions & comments

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