Processor U300 vs i7-1255U

Aggregate performance score

Core i7-1255U
2022
10 cores / 12 threads, 15 Watt
8.33
+48%
Processor U300
2023
5 cores / 6 threads, 15 Watt
5.63

Core i7-1255U outperforms Processor U300 by a considerable 48% based on our aggregate benchmark results.

Primary details

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

Place in the ranking9771228
Place by popularitynot in top-100not in top-100
Market segmentLaptopLaptop
SeriesIntel Alder Lake-MIntel Raptor Lake-U
Power efficiency53.1935.95
DesignerIntelIntel
ManufacturerIntelIntel
Architecture codenameAlder Lake-U (2022)Raptor Lake-U (2023)
Release date23 February 2022 (3 years ago)4 January 2023 (2 years ago)
Launch price (MSRP)no data$193

Detailed specifications

Core i7-1255U and Processor U300 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 cores10 (Deca-Core)5 (Penta-Core)
Performance-cores2no data
Efficient-cores8no data
Threads126
Base clock speed1.7 GHz1.2 GHz
Boost clock speed4.7 GHz4.4 GHz
Bus rateno data55 MHz
L1 cache80K (per core)80K (per core)
L2 cache1.25 MB (per core)1.25 MB (per core)
L3 cache12 MB (shared)8 MB (shared)
Chip lithographyIntel 7 nm10 nm
Maximum core temperature100 °C100 °C
64 bit support++
Windows 11 compatibility++

Compatibility

Information on Core i7-1255U and Processor U300 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 configuration11
SocketFCBGA1744Intel BGA 1744
Power consumption (TDP)15 Watt15 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-1255U and Processor U300. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2no data
AES-NI++
FMA+-
AVX++
Enhanced SpeedStep (EIST)++
Speed Shift+no data
Hyper-Threading Technology+no data
TSX++
Thermal Monitoring+-
Flex Memory Access+no data
Deep Learning Boost+-

Security technologies

Core i7-1255U and Processor U300 technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-1255U and Processor U300 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-1255U and Processor U300. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4, DDR5DDR4, DDR5 Dual-channel
Maximum memory size64 GBno data
Max memory channels2no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardIntel® Iris® Xe Graphics eligibleIntel UHD Graphics Xe G4 48EUs ( - 1100 MHz)
Quick Sync Video+-
Graphics max frequency1.25 GHzno data
Execution Units96no data

Graphics interfaces

Available interfaces and connections of Core i7-1255U and Processor U300 integrated GPUs.

Number of displays supported4no data

Graphics image quality

Maximum display resolutions supported by Core i7-1255U and Processor U300 integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.44096 x 2304 @ 60Hzno data
Max resolution over eDP4096 x 2304 @ 120Hzno data
Max resolution over DisplayPort7680 x 4320 @ 60Hzno data

Graphics API support

APIs supported by Core i7-1255U and Processor U300 integrated GPUs, sometimes API versions are included.

DirectX12.1no data
OpenGL4.6no data

Peripherals

Specifications and connection of peripherals supported by Core i7-1255U and Processor U300.

PCIe version4.04.0
PCI Express lanes208

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.

i7-1255U 8.33
+48%
Processor U300 5.63

Geekbench 5.5 Multi-Core

i7-1255U 7948
+111%
Processor U300 3764

7-Zip Single

i7-1255U 5256
+8.4%
Processor U300 4847

7-Zip

i7-1255U 36557
+92.6%
Processor U300 18979

WebXPRT 4 Overall

i7-1255U 232
+17.5%
Processor U300 197

Blender v3.3 Classroom CPU(-)

i7-1255U 728
Processor U300 1362
+87.1%

Geekbench 6.4 Multi-Core

i7-1255U 8273
+89.4%
Processor U300 4369

Geekbench 6.4 Single-Core

i7-1255U 2319
+13.6%
Processor U300 2041

Gaming performance

Pros & cons summary


Performance score 8.33 5.63
Recency 23 February 2022 4 January 2023
Physical cores 10 5
Threads 12 6

i7-1255U has a 48% higher aggregate performance score, and 100% more physical cores and 100% more threads.

Processor U300, on the other hand, has an age advantage of 10 months.

The Intel Core i7-1255U is our recommended choice as it beats the Intel Processor U300 in performance tests.

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Intel Core i7-1255U
Core i7-1255U
Intel Processor U300
Processor U300

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Community ratings

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