i7-1255U vs Xeon E7-4830

VS

Aggregate performance score

Xeon E7-4830
2011
8 cores / 16 threads, 105 Watt
12.58
+47.5%
Core i7-1255U
2022
10 cores / 12 threads, 15 Watt
8.53

Xeon E7-4830 outperforms Core i7-1255U by a considerable 47% based on our aggregate benchmark results.

Primary details

Comparing Xeon E7-4830 and Core i7-1255U processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking617895
Place by popularitynot in top-10074
Cost-effectiveness evaluation3.24no data
Market segmentServerLaptop
SeriesIntel Xeon E7Intel Alder Lake-M
Power efficiency11.3453.82
Architecture codenameWestmere-EX (2011)Alder Lake-U (2022)
Release date3 April 2011 (13 years ago)23 February 2022 (2 years ago)
Launch price (MSRP)$2,059no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Xeon E7-4830 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 cores8 (Octa-Core)10 (Deca-Core)
Threads1612
Base clock speed2.13 GHz1.7 GHz
Boost clock speed2.4 GHz4.7 GHz
Bus typeQPIno data
Bus rate6.4 GT/sno data
Multiplier16no data
L1 cache64 KB (per core)80K (per core)
L2 cache256 KB (per core)1.25 MB (per core)
L3 cache24 MB (shared)12 MB (shared)
Chip lithography32 nmIntel 7 nm
Die size513 mm2no data
Maximum core temperatureno data100 °C
Maximum case temperature (TCase)64 °Cno data
Number of transistors2,600 millionno data
64 bit support++
Windows 11 compatibility-+

Compatibility

Information on Xeon E7-4830 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 configuration4 (Multiprocessor)1
SocketLGA1567FCBGA1744
Power consumption (TDP)105 Watt15 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E7-4830 and Core i7-1255U. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.1, Intel® SSE4.2Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI++
FMA-+
AVX-+
Enhanced SpeedStep (EIST)++
Speed Shiftno data+
Turbo Boost Technology1.0no data
Hyper-Threading Technology++
TSX-+
Thermal Monitoring++
Flex Memory Accessno data+
Deep Learning Boost-+

Security technologies

Xeon E7-4830 and Core i7-1255U technologies aimed at improving security, for example, by protecting against hacks.

TXT++
EDB++
Secure Keyno data+
OS Guardno data+

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E7-4830 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 E7-4830 and Core i7-1255U. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3-800, DDR3-978, DDR3-1066, DDR3-1333, Speed-1066DDR4, DDR5
Maximum memory size2 TB64 GB
Max memory channels42
Maximum memory bandwidth34.113 GB/sno data
ECC memory support+-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardN/AIntel® Iris® Xe Graphics eligible
Quick Sync Video-+
Graphics max frequencyno data1.25 GHz
Execution Unitsno data96

Graphics interfaces

Available interfaces and connections of Xeon E7-4830 and Core i7-1255U integrated GPUs.

Number of displays supportedno data4

Graphics image quality

Maximum display resolutions supported by Xeon E7-4830 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 E7-4830 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 E7-4830 and Core i7-1255U.

PCIe versionno data4.0
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 E7-4830 12.58
+47.5%
i7-1255U 8.53

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 E7-4830 19981
+47.5%
i7-1255U 13545

Gaming performance

Pros & cons summary


Performance score 12.58 8.53
Recency 3 April 2011 23 February 2022
Physical cores 8 10
Threads 16 12
Power consumption (TDP) 105 Watt 15 Watt

Xeon E7-4830 has a 47.5% higher aggregate performance score, and 33.3% more threads.

i7-1255U, on the other hand, has an age advantage of 10 years, 25% more physical cores, and 600% lower power consumption.

The Xeon E7-4830 is our recommended choice as it beats the Core i7-1255U in performance tests.

Be aware that Xeon E7-4830 is a server/workstation processor while Core i7-1255U is a notebook one.


Should you still have questions on choice between Xeon E7-4830 and Core i7-1255U, ask them in Comments section, and we shall answer.

Vote for your favorite

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Intel Xeon E7-4830
Xeon E7-4830
Intel Core i7-1255U
Core i7-1255U

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Community ratings

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Questions & comments

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