Xeon E7520 vs i9-9900KF

Primary details

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

Place in the ranking	913	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	5.59	no data
Market segment	Desktop processor	Server
Series	Intel Core i9	no data
Power efficiency	4.57	no data
Designer	Intel	Intel
Manufacturer	Intel	no data
Architecture codename	Coffee Lake-R (2018−2019)	no data
Release date	8 January 2019 (7 years ago)	1 January 2010 (16 years ago)
Launch price (MSRP)	$488	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Performance to price scatter graph

Detailed specifications

Core i9-9900KF and Xeon E7520 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	8 (Octa-Core)	4 (Quad-Core)
Threads	16	8
Base clock speed	3.6 GHz	1.87 GHz
Boost clock speed	5 GHz	1.87 GHz
Bus type	DMI 3.0	no data
Bus rate	4 × 8 GT/s	no data
L1 cache	64K (per core)	no data
L2 cache	256K (per core)	no data
L3 cache	16 MB (shared)	18 MB L3 Cache
Chip lithography	14 nm	45 nm
Maximum core temperature	100 °C	70 °C
Maximum case temperature (TCase)	72 °C	no data
64 bit support	+	-
Windows 11 compatibility	+	-
Unlocked multiplier	+	-

Compatibility

Information on Core i9-9900KF and Xeon E7520 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 (Uniprocessor)	no data
Socket	FCLGA1151	FCLGA1567
Power consumption (TDP)	95 Watt	95 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i9-9900KF and Xeon E7520. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2	no data
AES-NI	+	-
AVX	+	-
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	2.0	no data
Hyper-Threading Technology	+	+
TSX	+	-
Idle States	+	no data
Thermal Monitoring	+	-

Security technologies

Core i9-9900KF and Xeon E7520 technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	no data
EDB	+	+
MPX	+	-
Identity Protection	+	-
SGX	Yes with Intel® ME	no data
OS Guard	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i9-9900KF and Xeon E7520 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i9-9900KF and Xeon E7520. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-2666	no data
Maximum memory size	128 GB	no data
Max memory channels	2	no data
Maximum memory bandwidth	42.671 GB/s	no data

Peripherals

Specifications and connection of peripherals supported by Core i9-9900KF and Xeon E7520.

PCIe version	3.0	no data
PCI Express lanes	16	no data

Pros & cons summary

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Recency	8 January 2019	1 January 2010
Physical cores	8	4
Threads	16	8
Chip lithography	14 nm	45 nm