Ultra 7 255U vs Celeron 6305

Primary details

Comparing Celeron 6305 and Core Ultra 7 255U processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2304	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Tiger Lake	no data
Power efficiency	8.26	no data
Architecture codename	Tiger Lake-U (2020)	no data
Release date	1 September 2020 (4 years ago)	1 January 2025 (less than a year ago)

Detailed specifications

Celeron 6305 and Core Ultra 7 255U 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	2 (Dual-core)	12 (Dodeca-Core)
Performance-cores	no data	2
Efficient-cores	no data	8
Low Power Efficient-cores	no data	2
Threads	2	14
Boost clock speed	1.8 GHz	5.2 GHz
Bus rate	4 GT/s	no data
L1 cache	160 KB	no data
L2 cache	2.5 MB	no data
L3 cache	4 MB	12 MB
Chip lithography	10 nm SuperFin	Intel 3 nm
Maximum core temperature	100 °C	no data
64 bit support	+	+
Windows 11 compatibility	+	no data

Compatibility

Information on Celeron 6305 and Core Ultra 7 255U 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	1
Socket	FCBGA1449	FCBGA2049
Power consumption (TDP)	15 Watt	57 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Celeron 6305 and Core Ultra 7 255U. 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	+	+
AVX	+	-
Speed Shift	+	+
Turbo Boost Technology	-	no data
Hyper-Threading Technology	-	+
Idle States	+	no data
Thermal Monitoring	+	+
Turbo Boost Max 3.0	no data	-
Deep Learning Boost	+	+
Supported AI Software Frameworks	-	OpenVINO™, WindowsML, ONNX RT

Security technologies

Celeron 6305 and Core Ultra 7 255U technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	+
EDB	no data	+
Secure Key	no data	+
SGX	-	no data
OS Guard	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Celeron 6305 and Core Ultra 7 255U are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Celeron 6305 and Core Ultra 7 255U. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4	DDR5-6400
Maximum memory size	64 GB	128 GB
Max memory channels	2	2

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel UHD Graphics for 11th Gen Intel Processors	Intel® Graphics
Quick Sync Video	+	+
Clear Video HD	+	no data
Graphics max frequency	1.25 GHz	2.1 GHz
Execution Units	48	no data

Graphics interfaces

Available interfaces and connections of Celeron 6305 and Core Ultra 7 255U integrated GPUs.

Number of displays supported

4

4

Graphics image quality

Maximum display resolutions supported by Celeron 6305 and Core Ultra 7 255U integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.4	4096x2304@60Hz	4096 x 2304 @ 60Hz (HDMI 2.1 TMDS) 7680 x 4320 @ 60Hz (HDMI2.1 FRL)
Max resolution over eDP	4096x2304@60Hz	3840x2400 @ 120Hz
Max resolution over DisplayPort	7680x4320@60Hz	7680 x 4320 @ 60Hz

Graphics API support

APIs supported by Celeron 6305 and Core Ultra 7 255U integrated GPUs, sometimes API versions are included.

DirectX	12.1	12.2
OpenGL	4.6	4.6

Peripherals

Specifications and connection of peripherals supported by Celeron 6305 and Core Ultra 7 255U.

PCI Express lanes	no data	20
PCI support	no data	4.0

Pros & cons summary

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Recency	1 September 2020	1 January 2025
Physical cores	2	12
Threads	2	14
Power consumption (TDP)	15 Watt	57 Watt

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