Ultra 7 265KF vs Xeon L5640

Aggregate performance score

Xeon L5640
2010
6 cores / 12 threads, 60 Watt
2.98
Core Ultra 7 265KF
2024
20 cores / 20 threads, 125 Watt
39.75
+1234%

Core Ultra 7 265KF outperforms Xeon L5640 by a whopping 1234% based on our aggregate benchmark results.

Primary details

Comparing Xeon L5640 and Core Ultra 7 265KF processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking164973
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation1.55100.00
Market segmentServerDesktop processor
Power efficiency4.6129.54
Architecture codenameWestmere-EP (2010−2011)Arrow Lake-S (2024−2025)
Release date16 March 2010 (14 years ago)24 October 2024 (recently)
Launch price (MSRP)$200$379

Cost-effectiveness evaluation

Performance per price, higher is better.

Ultra 7 265KF has 6352% better value for money than Xeon L5640.

Detailed specifications

Xeon L5640 and Core Ultra 7 265KF 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)20 (Icosa-Core)
Threads1220
Base clock speed2.26 GHz3.9 GHz
Boost clock speed2.8 GHz5.5 GHz
L1 cache64 KB (per core)112 KB (per core)
L2 cache256 KB (per core)3 MB (per core)
L3 cache12 MB (shared)30 MB (shared)
Chip lithography32 nm3 nm
Die size239 mm2243 mm2
Maximum core temperature69 °Cno data
Number of transistors1,170 million17,800 million
64 bit support++
Windows 11 compatibility-no data
Unlocked multiplier-+

Compatibility

Information on Xeon L5640 and Core Ultra 7 265KF 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,LGA13661851
Power consumption (TDP)60 Watt125 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon L5640 and Core Ultra 7 265KF. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.2no data
AES-NI++
AVX-+
Enhanced SpeedStep (EIST)++
Turbo Boost Technology1.0no data
Hyper-Threading Technology+no data
TSX-+
Idle States+no data
Demand Based Switching+no data
PAE40 Bitno data

Security technologies

Xeon L5640 and Core Ultra 7 265KF technologies aimed at improving security, for example, by protecting against hacks.

TXT++
EDB+no data

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon L5640 and Core Ultra 7 265KF are enumerated here.

VT-d++
VT-x++
EPT+no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon L5640 and Core Ultra 7 265KF. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3DDR5
Maximum memory size288 GBno data
Max memory channels3no data
Maximum memory bandwidth32 GB/sno data
ECC memory support+-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataN/A

Peripherals

Specifications and connection of peripherals supported by Xeon L5640 and Core Ultra 7 265KF.

PCIe version2.05.0
PCI Express lanesno data20

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 L5640 2.98
Ultra 7 265KF 39.75
+1234%

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 L5640 4645
Ultra 7 265KF 61964
+1234%

Gaming performance

Pros & cons summary


Performance score 2.98 39.75
Recency 16 March 2010 24 October 2024
Physical cores 6 20
Threads 12 20
Chip lithography 32 nm 3 nm
Power consumption (TDP) 60 Watt 125 Watt

Xeon L5640 has 108.3% lower power consumption.

Ultra 7 265KF, on the other hand, has a 1233.9% higher aggregate performance score, an age advantage of 14 years, 233.3% more physical cores and 66.7% more threads, and a 966.7% more advanced lithography process.

The Core Ultra 7 265KF is our recommended choice as it beats the Xeon L5640 in performance tests.

Be aware that Xeon L5640 is a server/workstation processor while Core Ultra 7 265KF is a desktop one.


Should you still have questions on choice between Xeon L5640 and Core Ultra 7 265KF, ask them in Comments section, and we shall answer.

Vote for your favorite

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Intel Xeon L5640
Xeon L5640
Intel Core Ultra 7 265KF
Core Ultra 7 265KF

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Community ratings

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Questions & comments

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