Intel Xeon D-1581 vs E-2146G


General info

Comparing Xeon E-2146G and Xeon D-1581 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking778775
Place by popularitynot in top-100not in top-100
Value for money6.652.56
Market segmentServerServer
SeriesIntel Xeon EIntel Xeon D
Architecture codenameCoffee Lake (2017−2019)Broadwell (2015−2019)
Release date12 July 2018 (5 years old)24 February 2016 (8 years old)
Launch price (MSRP)$311no data
Current price$927 (3x MSRP)$728
Value for money

Performance per price, higher is better.

Xeon E-2146G has 160% better value for money than Xeon D-1581.

Technical specs

Xeon E-2146G and Xeon D-1581 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)16 (Hexadeca-Core)
Base clock speed3.5 GHz1.8 GHz
Boost clock speed4.5 GHz2.4 GHz
Bus support4 × 8 GT/sno data
L1 cache384 KB64K (per core)
L2 cache1.5 MB256K (per core)
L3 cache12 MB1.5 MB (per core)
Chip lithography14 nm14 nm
Die sizeno data306.18 mm2
Maximum core temperature100 °Cno data
Maximum case temperature (TCase)no data80 °C
Number of transistorsno data3,200 million
64 bit support++
Windows 11 compatibility+-
Unlocked multiplier--


Information on Xeon E-2146G and Xeon D-1581 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 configuration11
Power consumption (TDP)80 Watt65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E-2146G and Xeon D-1581. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2Intel® AVX2
vPro+no data
Enhanced SpeedStep (EIST)++
Turbo Boost Technology2.02.0
Hyper-Threading Technology++
Idle States++
Thermal Monitoring++
GPIOno data+

Security technologies

Xeon E-2146G and Xeon D-1581 technologies aimed at improving security, for example, by protecting against hacks.

Secure Key++
MPX+no data
SGXYes with Intel® MEno data
OS Guard++

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E-2146G and Xeon D-1581 are enumerated here.


Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E-2146G and Xeon D-1581. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4-2666DDR4, DDR3
Maximum memory size128 GB128 GB
Max memory channels22
Maximum memory bandwidth41.6 GB/s34.124 GB/s
ECC memory support++

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardIntel UHD Graphics P630no data
Max video memory128 GBno data
Quick Sync Video+no data
Clear Video+no data
Clear Video HD+no data
Graphics max frequency1.15 GHzno data
InTru 3D+no data

Graphics interfaces

Available interfaces and connections of Xeon E-2146G and Xeon D-1581 integrated GPUs.

Number of displays supported3no data
eDP+no data
DisplayPort+no data
HDMI+no data
DVI+no data

Graphics image quality

Maximum display resolutions supported by Xeon E-2146G and Xeon D-1581 integrated GPUs, including resolutions over different interfaces.

4K resolution support+no data
Max resolution over HDMI 1.44096x2160@24Hzno data
Max resolution over eDP4096x2304@60Hzno data
Max resolution over DisplayPort4096x2304@60Hzno data
Max resolution over VGAN/Ano data

Graphics API support

APIs supported by Xeon E-2146G and Xeon D-1581 integrated GPUs, sometimes API versions are included.

DirectX12no data
OpenGL4.5no data


Specifications and connection of peripherals supported by Xeon E-2146G and Xeon D-1581.

PCIe version3.02.0/3.0
PCI Express lanes1632
USB revisionno data2.0/3.0
Total number of SATA portsno data6
Number of USB portsno data8
Integrated LANno data+
UARTno 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 E-2146G


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.

Benchmark coverage: 67%

Xeon E-2146G 13260
Xeon D-1581 13282

Gaming performance

Advantages and disadvantages

Performance score 8.59 8.61
Recency 12 July 2018 24 February 2016
Physical cores 6 16
Threads 12 32
Boost clock speed 3500 2400
Base clock speed 0 1800
Power consumption (TDP) 80 Watt 65 Watt

We couldn't decide between Xeon E-2146G and Xeon D-1581. The differences in performance seem too small.

Should you still have questions on choice between Xeon E-2146G and Xeon D-1581, ask them in Comments section, and we shall answer.

Cast your own vote

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite CPU.

Intel Xeon E-2146G
Xeon E-2146G
Intel Xeon D-1581
Xeon D-1581

Similar processor comparisons

We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.

User ratings: view and submit

Here you can see how users rate the processors, as well as rate them yourself.

4 7 votes

Rate Intel Xeon E-2146G on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
3.8 15 votes

Rate Intel Xeon D-1581 on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

Questions and comments

Here you can ask a question about Xeon E-2146G or Xeon D-1581, agree or disagree with our judgements, or report an error or mismatch.