Ultra 5 226V vs i7-1255U

VS

Aggregate performance score

Core i7-1255U
2022
10 cores / 12 threads, 15 Watt
8.53
Core Ultra 5 226V
2024
8 cores / 8 threads, 17 Watt
11.92
+39.7%

Core Ultra 5 226V outperforms Core i7-1255U by a considerable 40% based on our aggregate benchmark results.

Primary details

Comparing Core i7-1255U and Core Ultra 5 226V processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking896653
Place by popularity74not in top-100
Market segmentLaptopLaptop
SeriesIntel Alder Lake-Mno data
Power efficiency53.7866.32
Architecture codenameAlder Lake-U (2022)Lunar Lake (2024)
Release date23 February 2022 (2 years ago)24 September 2024 (less than a year ago)

Detailed specifications

Core i7-1255U and Core Ultra 5 226V 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)8 (Octa-Core)
Threads128
Base clock speed1.7 GHz2.1 GHz
Boost clock speed4.7 GHz4.5 GHz
Bus rateno data37 MHz
L1 cache80K (per core)192 KB (per core)
L2 cache1.25 MB (per core)2.5 MB (per core)
L3 cache12 MB (shared)8 MB (shared)
Chip lithography10 nm3 nm
Maximum core temperature100 °C100 °C
64 bit support++
Windows 11 compatibility+no data

Compatibility

Information on Core i7-1255U and Core Ultra 5 226V 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
SocketIntel BGA 1744FCBGA2833
Power consumption (TDP)15 Watt17 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-1255U and Core Ultra 5 226V. You'll probably need this information if you require some particular technology.

Instruction set extensionsno dataIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI++
FMA+-
AVX++
Enhanced SpeedStep (EIST)++
Speed Shiftno data+
Hyper-Threading Technologyno data-
TSX++
Thermal Monitoring-+
Turbo Boost Max 3.0no data-
Deep Learning Boost-+
Supported AI Software Frameworks-OpenVINO™, WindowsML, DirectML, ONNX RT, WebNN

Security technologies

Core i7-1255U and Core Ultra 5 226V technologies aimed at improving security, for example, by protecting against hacks.

TXT++
EDBno data+
Secure Keyno data+
OS Guardno data+

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-1255U and Core Ultra 5 226V are enumerated here.

VT-d++
VT-x++
EPTno data+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-1255U and Core Ultra 5 226V. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4, DDR5DDR5
Maximum memory sizeno data16 GB
Max memory channelsno data2

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card
Compare
Intel Iris Xe Graphics G7 96EUs ( - 1250 MHz)Intel Arc Graphics 130V
Quick Sync Video-+
Graphics max frequencyno data1.85 GHz

Graphics interfaces

Available interfaces and connections of Core i7-1255U and Core Ultra 5 226V integrated GPUs.

Number of displays supportedno data3

Graphics image quality

Maximum display resolutions supported by Core i7-1255U and Core Ultra 5 226V integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.4no data4096 x 2304 @ 60Hz (HDMI 2.1 TMDS) 7680 x 4320 @ 60Hz (HDMI2.1 FRL)
Max resolution over eDPno data3840x2400 @ 120Hz
Max resolution over DisplayPortno data7680 x 4320 @ 60Hz

Graphics API support

APIs supported by Core i7-1255U and Core Ultra 5 226V integrated GPUs, sometimes API versions are included.

DirectXno data12.2
OpenGLno data4.6

Peripherals

Specifications and connection of peripherals supported by Core i7-1255U and Core Ultra 5 226V.

PCIe version4.05.0
PCI Express lanes204
PCI supportno data5.0 and 4.0

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.

i7-1255U 8.53
Ultra 5 226V 11.92
+39.7%

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

i7-1255U 13544
Ultra 5 226V 18938
+39.8%

Geekbench 5.5 Multi-Core

i7-1255U 7982
Ultra 5 226V 8704
+9%

Blender(-)

i7-1255U 396
+11.4%
Ultra 5 226V 355

Geekbench 5.5 Single-Core

i7-1255U 1661
Ultra 5 226V 1852
+11.5%

7-Zip Single

i7-1255U 5248
Ultra 5 226V 5305
+1.1%

7-Zip

i7-1255U 36691
+10.9%
Ultra 5 226V 33099

WebXPRT 4 Overall

i7-1255U 233
Ultra 5 226V 249
+6.9%

Blender v3.3 Classroom CPU(-)

i7-1255U 726
+16.3%
Ultra 5 226V 624

Geekbench 6.3 Multi-Core

i7-1255U 7914
Ultra 5 226V 9850
+24.5%

Geekbench 6.3 Single-Core

i7-1255U 2313
Ultra 5 226V 2527
+9.3%

Gaming performance

Pros & cons summary


Performance score 8.53 11.92
Integrated graphics card 9.47 11.64
Recency 23 February 2022 24 September 2024
Physical cores 10 8
Threads 12 8
Chip lithography 10 nm 3 nm
Power consumption (TDP) 15 Watt 17 Watt

i7-1255U has 25% more physical cores and 50% more threads, and 13.3% lower power consumption.

Ultra 5 226V, on the other hand, has a 39.7% higher aggregate performance score, 22.9% faster integrated GPU, an age advantage of 2 years, and a 233.3% more advanced lithography process.

The Core Ultra 5 226V is our recommended choice as it beats the Core i7-1255U in performance tests.


Should you still have questions on choice between Core i7-1255U and Core Ultra 5 226V, 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.


Intel Core i7-1255U
Core i7-1255U
Intel Core Ultra 5 226V
Core Ultra 5 226V

Similar processor comparisons

We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.

Community ratings

Here you can see how users rate the processors, as well as rate them yourself.


3.7 823 votes

Rate Core i7-1255U on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
3 7 votes

Rate Core Ultra 5 226V on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

Questions & comments

Here you can ask a question about Core i7-1255U or Core Ultra 5 226V, agree or disagree with our judgements, or report an error or mismatch.