Xeon E5420 vs i7-8650U

Primary details

Comparing Core i7-8650U and Xeon E5420 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1427	2281
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Server
Series	Intel Core i7	no data
Power efficiency	24.88	1.51
Architecture codename	Kaby Lake Refresh (2017−2019)	no data
Release date	21 August 2017 (7 years ago)	1 October 2007 (17 years ago)
Launch price (MSRP)	$409	no data

Detailed specifications

Core i7-8650U and Xeon E5420 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	4 (Quad-Core)	no data
Threads	8	no data
Base clock speed	1.9 GHz	2.5 GHz
Boost clock speed	4.2 GHz	no data
Bus type	OPI	no data
Bus rate	4 GT/s	no data
Multiplier	19	no data
L1 cache	256 KB	no data
L2 cache	1 MB	no data
L3 cache	8 MB (shared)	12 MB L2 Cache
Chip lithography	14 nm	45 nm
Die size	123 mm2	no data
Maximum core temperature	100 °C	67 °C
Maximum case temperature (TCase)	72 °C	no data
64 bit support	+	+
Windows 11 compatibility	+	-
VID voltage range	no data	0.85V-1.35V

Compatibility

Information on Core i7-8650U and Xeon E5420 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	FCBGA1356,FC-BGA1356	LGA771
Power consumption (TDP)	15 Watt	80 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-8650U and Xeon E5420. 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)	+	+
Speed Shift	+	no data
My WiFi	+	no data
Turbo Boost Technology	2.0	-
Hyper-Threading Technology	+	-
TSX	+	-
Idle States	+	+
Thermal Monitoring	+	+
Flex Memory Access	+	no data
SIPP	+	-
Smart Response	+	no data
Demand Based Switching	no data	+
FSB parity	no data	+

Security technologies

Core i7-8650U and Xeon E5420 technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-8650U and Xeon E5420 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-8650U and Xeon E5420. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4	no data
Maximum memory size	32 GB	no data
Max memory channels	2	no data
Maximum memory bandwidth	38.397 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel UHD Graphics 620	no data
Max video memory	32 GB	no data
Quick Sync Video	+	-
Clear Video	+	no data
Clear Video HD	+	no data
Graphics max frequency	1.15 GHz	no data

Graphics interfaces

Available interfaces and connections of Core i7-8650U and Xeon E5420 integrated GPUs.

Number of displays supported	3	no data
eDP	+	no data
DisplayPort	+	-
HDMI	+	-
DVI	+	no data

Graphics image quality

Maximum display resolutions supported by Core i7-8650U and Xeon E5420 integrated GPUs, including resolutions over different interfaces.

4K resolution support	+	no data
Max resolution over HDMI 1.4	4096 x 2304@24Hz	no data
Max resolution over eDP	4096 x 2304@60Hz	no data
Max resolution over DisplayPort	4096 x 2304@60Hz	no data

Graphics API support

APIs supported by Core i7-8650U and Xeon E5420 integrated GPUs, sometimes API versions are included.

DirectX	12	no data
OpenGL	4.4	no data

Peripherals

Specifications and connection of peripherals supported by Core i7-8650U and Xeon E5420.

PCIe version	3.0	no data
PCI Express lanes	12	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.

---

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.

---

Pros & cons summary

---

Performance score	3.96	1.28
Recency	21 August 2017	1 October 2007
Chip lithography	14 nm	45 nm
Power consumption (TDP)	15 Watt	80 Watt

---

Should you still have questions on choice between Core i7-8650U and Xeon E5420, ask them in Comments section, and we shall answer.

Vote for your favorite

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

---