Xeon X5355 vs Core i9-7900X

Primary details

Comparing Core i9-7900X and Xeon X5355 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	508	2195
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	4.74	no data
Market segment	Desktop processor	Server
Series	Core i9 (Desktop)	no data
Architecture codename	Skylake-X (2018)	Clovertown
Release date	26 June 2017 (7 years ago)	14 November 2006 (17 years ago)
Launch price (MSRP)	$999	no data
Current price	$864 (0.9x MSRP)	$67

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core i9-7900X and Xeon X5355 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 cores	10 (Deca-Core)	4 (Quad-Core)
Threads	20	4
Base clock speed	3.3 GHz	2.66 GHz
Boost clock speed	4.5 GHz	0.67 GHz
L1 cache	64 KB (per core)	64 KB (per core)
L2 cache	1 MB (per core)	4 MB (per die)
L3 cache	14 MB (shared)	8 MB L2 Cache
Chip lithography	14 nm	65 nm
Die size	no data	2x 143 mm2
Maximum core temperature	95 °C	70 °C
Maximum case temperature (TCase)	72 °C	63 °C
Number of transistors	no data	582 million
64 bit support	+	+
Windows 11 compatibility	+	no data
Unlocked multiplier	Yes	No
VID voltage range	no data	1V-1.5V

Compatibility

Information on Core i9-7900X and Xeon X5355 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 configuration	1	2
Socket	Socket R4	LGA771,PLGA771
Power consumption (TDP)	140 Watt	120 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i9-7900X and Xeon X5355. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512	no data
AES-NI	+	no data
AVX	+	no data
vPro	+	no data
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	2.0	-
Hyper-Threading Technology	+	-
TSX	+	no data
Idle States	no data	+
Thermal Monitoring	no data	+
Demand Based Switching	no data	+
PAE	no data	32 Bit
Turbo Boost Max 3.0	+	no data
FSB parity	no data	+
Status	Discontinued	Discontinued

Security technologies

Core i9-7900X and Xeon X5355 technologies aimed at improving security, for example, by protecting against hacks.

TXT	no data	-
EDB	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Core i9-7900X and Xeon X5355 are enumerated here.

AMD-V	+	no data
VT-d	+	no data
VT-x	+	+
EPT	no data	-

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i9-7900X and Xeon X5355. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4	DDR2, DDR3 Depends on motherboard
Maximum memory size	128 GB	no data
Max memory channels	4	no data
Maximum memory bandwidth	85 GB/s	no data
ECC memory support	-	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

N/A

N/A

Peripherals

Specifications and connection of peripherals supported by Core i9-7900X and Xeon X5355.

PCIe version	3.0	no data
PCI Express lanes	44	no 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.

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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.

Core i9-7900X outperforms Xeon X5355 by 966% based on our aggregate benchmark results.

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Pros & cons summary

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Performance score	13.65	1.28
Recency	26 June 2017	14 November 2006
Physical cores	10	4
Threads	20	4
Chip lithography	14 nm	65 nm
Power consumption (TDP)	140 Watt	120 Watt

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Should you still have questions on choice between Core i9-7900X and Xeon X5355, ask them in Comments section, and we shall answer.

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