i7-1255U vs Xeon E3-1585 v5

VS

Aggregate performance score

Xeon E3-1585 v5
2016
4 cores / 8 threads, 65 Watt
5.29
Core i7-1255U
2022
10 cores / 12 threads, 15 Watt
8.53
+61.2%

Core i7-1255U outperforms Xeon E3-1585 v5 by an impressive 61% based on our aggregate benchmark results.

Primary details

Comparing Xeon E3-1585 v5 and Core i7-1255U processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking1184895
Place by popularitynot in top-10074
Cost-effectiveness evaluation2.07no data
Market segmentServerLaptop
SeriesIntel Xeon E3Intel Alder Lake-M
Power efficiency7.7053.82
Architecture codenameSkylake-H (2015−2016)Alder Lake-U (2022)
Release date31 May 2016 (8 years ago)23 February 2022 (2 years ago)
Launch price (MSRP)$556no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Xeon E3-1585 v5 and Core i7-1255U 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)10 (Deca-Core)
Threads812
Base clock speed3.5 GHz1.7 GHz
Boost clock speed3.9 GHz4.7 GHz
Bus typeDMI 3.0no data
Bus rate4 × 8 GT/sno data
Multiplier35no data
L1 cache64 KB (per core)80K (per core)
L2 cache256 KB (per core)1.25 MB (per core)
L3 cache8 MB (shared)12 MB (shared)
Chip lithography14 nmIntel 7 nm
Die size171 mm2no data
Maximum core temperature100 °C100 °C
Number of transistors2,300 millionno data
64 bit support++
Windows 11 compatibility-+

Compatibility

Information on Xeon E3-1585 v5 and Core i7-1255U 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 configuration1 (Uniprocessor)1
SocketFCBGA1440FCBGA1744
Power consumption (TDP)65 Watt15 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E3-1585 v5 and Core i7-1255U. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI++
FMA-+
AVX++
vPro+no data
Enhanced SpeedStep (EIST)++
eDRAM128 MBno data
Speed Shiftno data+
Turbo Boost Technology2.0no data
Hyper-Threading Technology++
TSX++
Idle States+no data
Thermal Monitoring-+
Flex Memory Accessno data+
FDI+no data
Deep Learning Boost-+

Security technologies

Xeon E3-1585 v5 and Core i7-1255U technologies aimed at improving security, for example, by protecting against hacks.

TXT++
EDB++
Secure Keyno data+
OS Guard++

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E3-1585 v5 and Core i7-1255U are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E3-1585 v5 and Core i7-1255U. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3L,LPDDR3 1600 MHz, DDR4 2133 MHz at 1.2VDDR4, DDR5
Maximum memory size64 GB64 GB
Max memory channels22
Maximum memory bandwidth34.134 GB/sno data
ECC memory support+-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardIntel Iris Pro Graphics P580Intel® Iris® Xe Graphics eligible
Max video memory64 GBno data
Quick Sync Video++
Clear Video+no data
Graphics max frequency1.15 GHz1.25 GHz
Execution Units7296

Graphics interfaces

Available interfaces and connections of Xeon E3-1585 v5 and Core i7-1255U integrated GPUs.

Number of displays supported34

Graphics image quality

Maximum display resolutions supported by Xeon E3-1585 v5 and Core i7-1255U integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.4no data4096 x 2304 @ 60Hz
Max resolution over eDPno data4096 x 2304 @ 120Hz
Max resolution over DisplayPortno data7680 x 4320 @ 60Hz

Graphics API support

APIs supported by Xeon E3-1585 v5 and Core i7-1255U integrated GPUs, sometimes API versions are included.

DirectXno data12.1
OpenGLno data4.6

Peripherals

Specifications and connection of peripherals supported by Xeon E3-1585 v5 and Core i7-1255U.

PCIe version3.04.0
PCI Express lanes1620

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 E3-1585 v5 5.29
i7-1255U 8.53
+61.2%

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 E3-1585 v5 8408
i7-1255U 13545
+61.1%

Gaming performance

Pros & cons summary


Performance score 5.29 8.53
Recency 31 May 2016 23 February 2022
Physical cores 4 10
Threads 8 12
Power consumption (TDP) 65 Watt 15 Watt

i7-1255U has a 61.2% higher aggregate performance score, an age advantage of 5 years, 150% more physical cores and 50% more threads, and 333.3% lower power consumption.

The Core i7-1255U is our recommended choice as it beats the Xeon E3-1585 v5 in performance tests.

Be aware that Xeon E3-1585 v5 is a server/workstation processor while Core i7-1255U is a notebook one.


Should you still have questions on choice between Xeon E3-1585 v5 and Core i7-1255U, ask them in Comments section, and we shall answer.

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Intel Xeon E3-1585 v5
Xeon E3-1585 v5
Intel Core i7-1255U
Core i7-1255U

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Community ratings

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