Xeon X5675 vs Silver 4123

Aggregate performance score

Xeon Silver 4123
2018
8 cores / 16 threads, 105 Watt
9.07
+125%
Xeon X5675
2011
6 cores / 12 threads, 95 Watt
4.03

Xeon Silver 4123 outperforms Xeon X5675 by a whopping 125% based on our aggregate benchmark results.

Primary details

Comparing Xeon Silver 4123 and Xeon X5675 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking8421410
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluationno data3.80
Market segmentServerServer
Power efficiency8.174.01
Architecture codenameno dataWestmere-EP (2010−2011)
Release date1 January 2018 (6 years ago)14 February 2011 (13 years ago)
Launch price (MSRP)no data$162

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Xeon Silver 4123 and Xeon X5675 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)6 (Hexa-Core)
Threads1612
Base clock speed3 GHz3.06 GHz
Boost clock speed3.2 GHz3.46 GHz
L1 cacheno data64 KB (per core)
L2 cacheno data256 KB (per core)
L3 cache11 MB12288 KB (shared)
Chip lithography14 nm32 nm
Die sizeno data239 mm2
Maximum core temperatureno data81 °C
Number of transistorsno data1,170 million
64 bit support-+
Windows 11 compatibility--

Compatibility

Information on Xeon Silver 4123 and Xeon X5675 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 configurationno data2
SocketFCLGA3647FCLGA1366,LGA1366
Power consumption (TDP)105 Watt95 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon Silver 4123 and Xeon X5675. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® AVX-512Intel® SSE4.2
AES-NI++
vPro+no data
Enhanced SpeedStep (EIST)no data+
Speed Shift+no data
Turbo Boost Technology2.01.0
Hyper-Threading Technology++
TSX+-
Idle Statesno data+
Demand Based Switchingno data+
PAEno data40 Bit
Turbo Boost Max 3.0-no data

Security technologies

Xeon Silver 4123 and Xeon X5675 technologies aimed at improving security, for example, by protecting against hacks.

TXT++
EDBno data+

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon Silver 4123 and Xeon X5675 are enumerated here.

VT-dno data+
VT-x++
EPTno data+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon Silver 4123 and Xeon X5675. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4-2400DDR3
Maximum memory size512 GB288 GB
Max memory channels63
Maximum memory bandwidthno data32 GB/s
ECC memory support++

Peripherals

Specifications and connection of peripherals supported by Xeon Silver 4123 and Xeon X5675.

PCIe version3.02.0
PCI Express lanes48no data

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 Silver 4123 9.07
+125%
Xeon X5675 4.03

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 Silver 4123 14405
+125%
Xeon X5675 6396

Gaming performance

Pros & cons summary


Performance score 9.07 4.03
Recency 1 January 2018 14 February 2011
Physical cores 8 6
Threads 16 12
Chip lithography 14 nm 32 nm
Power consumption (TDP) 105 Watt 95 Watt

Xeon Silver 4123 has a 125.1% higher aggregate performance score, an age advantage of 6 years, 33.3% more physical cores and 33.3% more threads, and a 128.6% more advanced lithography process.

Xeon X5675, on the other hand, has 10.5% lower power consumption.

The Xeon Silver 4123 is our recommended choice as it beats the Xeon X5675 in performance tests.


Should you still have questions on choice between Xeon Silver 4123 and Xeon X5675, ask them in Comments section, and we shall answer.

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Intel Xeon Silver 4123
Xeon Silver 4123
Intel Xeon X5675
Xeon X5675

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Community ratings

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