Mobile Sempron SI-40 vs Core i9-9900K

Primary details

Comparing Core i9-9900K and Mobile Sempron SI-40 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	615	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	13.75	no data
Market segment	Desktop processor	Laptop
Series	Core i9 (Desktop)	AMD Mobile Sempron
Architecture codename	Coffee Lake-R (2018−2019)	Sable (2008−2009)
Release date	19 October 2018 (5 years ago)	4 July 2008 (16 years ago)
Launch price (MSRP)	$488	no data
Current price	$363 (0.7x MSRP)	$7.54

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core i9-9900K and Mobile Sempron SI-40 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)	1 (Single-Core)
Threads	16	1
Base clock speed	3.6 GHz	no data
Boost clock speed	5 GHz	2 GHz
Bus support	no data	1800 MHz
L1 cache	64K (per core)	no data
L2 cache	256K (per core)	512 KB
L3 cache	16 MB (shared)	no data
Chip lithography	14 nm	65 nm
Die size	178 mm2	no data
Maximum core temperature	100 °C	100 °C
Maximum case temperature (TCase)	72 °C	no data
64 bit support	+	+
Windows 11 compatibility	+	-
Unlocked multiplier	Yes	No

Compatibility

Information on Core i9-9900K and Mobile Sempron SI-40 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	no data
Socket	LGA-1151	S1g2
Power consumption (TDP)	95 Watt	25 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i9-9900K and Mobile Sempron SI-40. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2	65 nm, 1.075 - 1.125V
AES-NI	+	no data
AVX	+	no data
vPro	+	no data
Enhanced SpeedStep (EIST)	+	no data
Turbo Boost Technology	2.0	no data
Hyper-Threading Technology	+	no data
TSX	+	no data
Idle States	+	no data
Thermal Monitoring	+	no data
SIPP	+	no data
Status	Discontinued	no data

Security technologies

Core i9-9900K and Mobile Sempron SI-40 technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Core i9-9900K and Mobile Sempron SI-40 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i9-9900K and Mobile Sempron SI-40. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4	no data
Maximum memory size	128 GB	no data
Max memory channels	2	no data
Maximum memory bandwidth	41.6 GB/s	no data
ECC memory support	-	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel UHD Graphics 630	no data
Max video memory	64 GB	no data
Quick Sync Video	+	no data
Clear Video	+	no data
Clear Video HD	+	no data
Graphics max frequency	1.2 GHz	no data
InTru 3D	+	no data

Graphics interfaces

Available interfaces and connections of Core i9-9900K and Mobile Sempron SI-40 integrated GPUs.

Number of displays supported

3

no data

Graphics image quality

Maximum display resolutions supported by Core i9-9900K and Mobile Sempron SI-40 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 i9-9900K and Mobile Sempron SI-40 integrated GPUs, sometimes API versions are included.

DirectX	12	no data
OpenGL	4.5	no data

Peripherals

Specifications and connection of peripherals supported by Core i9-9900K and Mobile Sempron SI-40.

PCIe version	3.0	no data
PCI Express lanes	16	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.

---

Pros & cons summary

---

Recency	19 October 2018	4 July 2008
Physical cores	8	1
Threads	16	1
Chip lithography	14 nm	65 nm
Power consumption (TDP)	95 Watt	25 Watt

---

Should you still have questions on choice between Core i9-9900K and Mobile Sempron SI-40, 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.

---