Intel Xeon W-2255 vs Intel Core i9-9940X

Comparative analysis of Intel Xeon W-2255 and Intel Core i9-9940X processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Peripherals, Security & Reliability, Advanced Technologies, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core, 3DMark Fire Strike - Physics Score.

Intel Xeon W-2255

Intel Core i9-9940X

Differences

Reasons to consider the Intel Xeon W-2255

CPU is newer: launch date 1 year(s) 0 month(s) later
Around 2% higher clock speed: 4.50 GHz vs 4.40 GHz
8x more maximum memory size: 1 TB vs 128 GB
Around 3% better performance in PassMark - Single thread mark: 2708 vs 2629

Specifications (specs)
Launch date	7 Oct 2019 vs October 2018
Maximum frequency	4.50 GHz vs 4.40 GHz
Maximum memory size	1 TB vs 128 GB
Benchmarks
PassMark - Single thread mark	2708 vs 2629

Reasons to consider the Intel Core i9-9940X

Processor is unlocked, an unlocked multiplier allows for easier overclocking
4 more cores, run more applications at once: 14 vs 10
8 more threads: 28 vs 20
Around 42% higher maximum core temperature: 88°C vs 62°C
Around 40% more L1 cache; more data can be stored in the L1 cache for quick access later
Around 40% more L2 cache; more data can be stored in the L2 cache for quick access later
Around 25% better performance in PassMark - CPU mark: 27995 vs 22394

Specifications (specs)
Unlocked	Unlocked vs Locked
Number of cores	14 vs 10
Number of threads	28 vs 20
Maximum core temperature	88°C vs 62°C
L1 cache	64K (per core) vs 640 KB
L2 cache	1 MB (per core) vs 10 MB
Benchmarks
PassMark - CPU mark	27995 vs 22394

Compare benchmarks

CPU 1: Intel Xeon W-2255
CPU 2: Intel Core i9-9940X

PassMark - Single thread mark

CPU 1

CPU 2

2708

2629

PassMark - CPU mark

CPU 1

CPU 2

22394

27995

Name	Intel Xeon W-2255	Intel Core i9-9940X
PassMark - Single thread mark	2708	2629
PassMark - CPU mark	22394	27995
Geekbench 4 - Single Core		1140
Geekbench 4 - Multi-Core		13302
3DMark Fire Strike - Physics Score		11442

Compare specifications (specs)

	Intel Xeon W-2255	Intel Core i9-9940X
Essentials
Architecture codename	Cascade Lake	Skylake
Launch date	7 Oct 2019	October 2018
Launch price (MSRP)	$778
Place in performance rating	675	679
Processor Number	W-2255	i9-9940X
Series	Intel Xeon W Processor	Intel® Core™ X-series Processors
Status	Launched	Launched
Vertical segment	Workstation	Desktop
Performance
64 bit support
Base frequency	3.70 GHz	3.30 GHz
Bus Speed	8 GT/s	8 GT/s DMI3
L1 cache	640 KB	64K (per core)
L2 cache	10 MB	1 MB (per core)
L3 cache	19.25 MB	19.25 MB (shared)
Manufacturing process technology	14 nm	14 nm
Maximum core temperature	62°C	88°C
Maximum frequency	4.50 GHz	4.40 GHz
Number of cores	10	14
Number of QPI Links	0	0
Number of threads	20	28
Number of Ultra Path Interconnect (UPI) Links	0
Unlocked
Memory
Max memory channels	4	4
Maximum memory bandwidth	93.85 GB/s
Maximum memory size	1 TB	128 GB
Supported memory types	DDR4 2933	DDR4-2666
Compatibility
Max number of CPUs in a configuration	1	1
Package Size	45mm x 52.5mm
Sockets supported	FCLGA2066	FCLGA2066
Thermal Design Power (TDP)	165 Watt	165 Watt
Thermal Solution		PCG 2017X
Peripherals
Max number of PCIe lanes	48	44
PCI Express revision	3.0	3.0
PCIe configurations	x4, x8, x16
Scalability	1S Only	1S Only
Security & Reliability
Execute Disable Bit (EDB)
Intel® Identity Protection technology
Intel® Memory Protection Extensions (Intel® MPX)
Intel® OS Guard
Intel® Secure Key technology
Intel® Software Guard Extensions (Intel® SGX)
Intel® Trusted Execution technology (TXT)
Secure Boot
Advanced Technologies
Enhanced Intel SpeedStep® technology
Idle States
Instruction set extensions	Intel SSE4.2, Intel AVX, Intel AVX2, Intel AVX-512	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512
Intel 64
Intel® AES New Instructions
Intel® Demand Based Switching
Intel® Hyper-Threading technology
Intel® Optane™ Memory Supported
Intel® Turbo Boost technology
Intel® Volume Management Device (VMD)
Intel® vPro™ Platform Eligibility
Number of AVX-512 FMA Units	2	2
Physical Address Extensions (PAE)	46-bit
Speed Shift technology
Thermal Monitoring
Intel® Advanced Vector Extensions (AVX)
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)