Ultra 7 255HX vs i5-10300H

Primary details

Comparing Core i5-10300H and Core Ultra 7 255HX processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1217	not rated
Place by popularity	42	not in top-100
Market segment	Laptop	Laptop
Series	Intel Comet Lake	no data
Power efficiency	11.01	no data
Architecture codename	Comet Lake-H (2020)	no data
Release date	17 September 2020 (4 years ago)	1 January 2025 (less than a year ago)

Detailed specifications

Core i5-10300H and Core Ultra 7 255HX 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)	20 (Icosa-Core)
Performance-cores	no data	8
Efficient-cores	no data	12
Threads	8	20
Base clock speed	2.5 GHz	no data
Boost clock speed	4.5 GHz	5.2 GHz
Bus rate	8 GT/s	no data
L1 cache	64K (per core)	no data
L2 cache	256K (per core)	no data
L3 cache	6 MB (shared)	30 MB
Chip lithography	14 nm	no data
Maximum core temperature	100 °C	no data
Maximum case temperature (TCase)	72 °C	no data
64 bit support	+	+
Windows 11 compatibility	+	no data

Compatibility

Information on Core i5-10300H and Core Ultra 7 255HX 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	FCBGA1440	FCBGA2114
Power consumption (TDP)	45 Watt	55 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i5-10300H and Core Ultra 7 255HX. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI	+	+
FMA	+	-
AVX	+	-
Enhanced SpeedStep (EIST)	+	+
Speed Shift	+	+
Turbo Boost Technology	2.0	2.0
Hyper-Threading Technology	+	no data
Idle States	+	+
Thermal Monitoring	+	+
Flex Memory Access	+	no data
Turbo Boost Max 3.0	-	+
Deep Learning Boost	-	+
Supported AI Software Frameworks	-	OpenVINO™, WindowsML, DirectML, ONNX RT, WebNN

Security technologies

Core i5-10300H and Core Ultra 7 255HX technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Core i5-10300H and Core Ultra 7 255HX are enumerated here.

VT-d	+	+
VT-x	+	+
EPT	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i5-10300H and Core Ultra 7 255HX. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4	DDR5-6400
Maximum memory size	128 GB	192 GB
Max memory channels	2	2
Maximum memory bandwidth	45.8 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel UHD Graphics for 10th Gen Intel Processors	Intel® Graphics
Quick Sync Video	+	+
Graphics max frequency	1.05 GHz	1.85 GHz

Graphics interfaces

Available interfaces and connections of Core i5-10300H and Core Ultra 7 255HX integrated GPUs.

Number of displays supported	3	4
eDP	+	no data
DisplayPort	+	-
HDMI	+	-
DVI	+	no data

Graphics image quality

Maximum display resolutions supported by Core i5-10300H and Core Ultra 7 255HX integrated GPUs, including resolutions over different interfaces.

4K resolution support	+	no data
Max resolution over HDMI 1.4	4096 x 2304@30Hz	4K @ 60Hz (HDMI 2.1 TMDS) 8K @ 60Hz (HDMI2.1 FRL)
Max resolution over eDP	4096 x 2304@60Hz	3840x2400 @ 120Hz
Max resolution over DisplayPort	4096 x 2304@60Hz	7680 x 4320 @ 60Hz

Graphics API support

APIs supported by Core i5-10300H and Core Ultra 7 255HX integrated GPUs, sometimes API versions are included.

DirectX	12	12
OpenGL	4.5	4.5

Peripherals

Specifications and connection of peripherals supported by Core i5-10300H and Core Ultra 7 255HX.

PCIe version	3.0	5.0 and 4.0
PCI Express lanes	16	24

Pros & cons summary

---

Recency	17 September 2020	1 January 2025
Physical cores	4	20
Threads	8	20
Power consumption (TDP)	45 Watt	55 Watt

---

Should you still have questions on choice between Core i5-10300H and Core Ultra 7 255HX, 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.

---