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Intel Core i5-1235U

Intel i5-1235U

The Intel Core i5-1235U is a mid-range mobile CPU for thin and light laptops based on the Alder Lake architecture. It was announced in early 2022 and offers 2 performance cores (P-cores, Golden Cove architecture) and 8 efficient cores (E-cores, Gracemont architecture). The P-cores support Hyper-Threading leading to 12 supported threads when combined with the E-cores. The clock rate ranges from 1.3 to 4.4 GHz on the performance cluster and 0.9 to 3.3 GHz on the efficient cluster. The performance of the E-cores should be similar to old Skylake cores (compare to the Core i7-6700HQ). All cores can use up to 12 MB L3 cache. Compared to the i5-1245U, the 1235U offers lower base clock speeds and only "Essentials" vPro management features. Compared to the P-series (28W) or H-series (45W), the 15W TDP may limit the sustained performance.

Performance

The average 1235U in our database is in the same league as the Ryzen 5 PRO 5650U and also, surprisingly enough, the i7-1250U and the i7-1260U, as far as multi-thread benchmark scores are concerned. This is a very respectable result, as of mid 2023.

Thanks to its decent cooling solution and a long-term CPU power limit of 27 W, the Beelink SEi12 is among the fastest systems built around the 1235U that we know of. It can be twice as fast in CPU-bound workloads as the slowest system featuring the same chip in our database, as of August 2023.

Architecture

The integrated memory controller supports various memory types up to DDR5-4800, DDR4-3200, LPDDR5-5200, and LPDDR4x-4267. The Thread Director (in hardware) can support the operating system to decide which thread to use on the performance or efficient cores for the best performance. For AI tasks, the CPU also integrates GNA 3.0 and DL Boost (via AVX2). Quick Sync in version 8 is the same as in the Rocket Lake CPUs and supports MPEG-2, AVC, VC-1 decode, JPEG, VP8 decode, VP9, HEVC, and AV1 decode in hardware. The CPU only supports PCIe 4.0 (x8 for a GPU and two x4 for SSDs).

The integrated graphics card is based on the Xe-architecture and offers 80 of the 96 EUs (Execution Units) operating at up to 1.2 GHz.

Power consumption

This ULV processor has a Base power consumption of 15 W (also known as the long-term power limit), with 55 W being its maximum Intel-recommended Turbo power consumption. Both values are too high to allow for passively cooled designs.

Core i5-1235U is manufactured on Intel's fourth-gen 10 nm process marketed as Intel 7 for decent, as of mid-2022, energy efficiency.

SeriesIntel Alder Lake-M
CodenameAlder Lake-U

Series: Alder Lake-M Alder Lake-U

Intel Core i7-1265U compare1.3 - 4.8 GHz10 / 12 cores12 MB L3
Intel Core i7-1255U compare1.2 - 4.7 GHz10 / 12 cores12 MB L3
Intel Core i5-1245U compare1.2 - 4.4 GHz10 / 12 cores12 MB L3
Intel Core i5-1235U « 0.9 - 4.4 GHz10 / 12 cores12 MB L3
Intel Core i7-1260U compare0.8 - 4.7 GHz10 / 12 cores12 MB L3
Intel Core i7-1250U compare0.8 - 4.7 GHz10 / 12 cores12 MB L3
Intel Core i5-1240U compare0.8 - 4.4 GHz10 / 12 cores12 MB L3
Intel Core i5-1230U compare0.7 - 4.4 GHz10 / 12 cores12 MB L3
Intel Core i3-1215U compare0.9 - 4.4 GHz6 / 8 cores10 MB L3
Intel Pentium 8505 compare0.9 - 4.4 GHz5 / 6 cores8 MB L3
Intel Core i3-1210U compare0.7 - 4.4 GHz6 / 8 cores10 MB L3
Intel Pentium 8500 compare0.7 - 4.4 GHz5 / 6 cores8 MB L3
Intel Celeron 7305 compare0.9 - 1.1 GHz5 / 5 cores8 MB L3
Intel Celeron 7300 compare0.7 - 1 GHz5 / 5 cores8 MB L3
Clock Rate900 - 4400 MHz
Level 1 Cache928 KB
Level 2 Cache9.5 MB
Level 3 Cache12 MB
Number of Cores / Threads10 / 12
Power Consumption (TDP = Thermal Design Power)15 Watt
Manufacturing Technology10 nm
Max. Temperature100 °C
SocketBGA1744
FeaturesDDR4-3200/LPDDR4x-4266/DDR5-4800/LPDDR5-5200 RAM, PCIe 4, Thr. Dir., DL Boost, GNA, vPro Ess., MMX SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX, AVX2, BMI2, ABM, FMA, ADX, SMEP, SMAP, EIST, TM1, TM2, HT, Turbo, SST, AES-NI, RDRAND, RDSEED, SHA
GPUIntel Iris Xe Graphics G7 80EUs ( - 1200 MHz)
64 Bit64 Bit support
Architecturex86
Announcement Date01/04/2022
Product Link (external)ark.intel.com

Benchmarks

Performance Rating - CB R15 + R20 + 7-Zip + X265 + Blender + 3DM11 CPU
36 pt (50%)
Cinebench R23 - Cinebench R23 Multi Core
min: 2485     avg: 6365     median: 6623 (6%)     max: 9208 Points
Cinebench R23 - Cinebench R23 Single Core
min: 1444     avg: 1587     median: 1597 (68%)     max: 1698 Points
Cinebench R20 - Cinebench R20 CPU (Single Core)
min: 566     avg: 613     median: 617 (69%)     max: 651 Points
Cinebench R20 - Cinebench R20 CPU (Multi Core)
min: 1783     avg: 2709     median: 2801 (7%)     max: 3537 Points
Cinebench R15 - Cinebench R15 CPU Multi 64 Bit
min: 785     avg: 1125     median: 1093.5 (7%)     max: 1587 Points
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Cinebench R15 - Cinebench R15 CPU Single 64 Bit
min: 151.5     avg: 213.2     median: 217.5 (66%)     max: 242.3 Points
7-Zip 18.03 - 7-Zip 18.03 Multli Thread 4 runs
min: 20166     avg: 30566     median: 30361.5 (17%)     max: 38643 MIPS
7-Zip 18.03 - 7-Zip 18.03 Single Thread 4 runs
min: 4371     avg: 5000     median: 5137.5 (61%)     max: 5233 MIPS
HWBOT x265 Benchmark v2.2 - HWBOT x265 4k Preset
min: 4.99     avg: 7.8     median: 8.6 (15%)     max: 9.43 fps
05101520Tooltip
Blender - Blender 3.3 Classroom CPU *
min: 707     avg: 955     median: 872 (11%)     max: 1374 Seconds
Blender - Blender 2.79 BMW27 CPU *
min: 366     avg: 491     median: 470 (3%)     max: 662 Seconds
R Benchmark 2.5 - R Benchmark 2.5 *
min: 0.4986     avg: 0.5     median: 0.5 (11%)     max: 0.603 sec
3DMark 11 - 3DM11 Performance Physics
min: 7465     avg: 11105     median: 10290 (28%)     max: 15604 Points
3DMark - 3DMark Cloud Gate Physics
min: 6543     avg: 9959     median: 10446 (26%)     max: 12476 Points
3DMark - 3DMark Fire Strike Standard Physics
min: 9965     avg: 15291     median: 15301.5 (27%)     max: 19386 Points
3DMark - 3DMark Time Spy CPU
min: 3133     avg: 5151     median: 5180.5 (22%)     max: 7083 Points
Geekbench 6.2 - Geekbench 6.2 Single-Core
min: 1981     avg: 2095     median: 2094.5 (56%)     max: 2208 points
Geekbench 6.2 - Geekbench 6.2 Multi-Core
min: 6703     avg: 6875     median: 6874.5 (27%)     max: 7046 points
Geekbench 5.5 - Geekbench 5.1 - 5.4 64 Bit Single-Core
min: 1426     avg: 1553     median: 1591.5 (67%)     max: 1643 points
Geekbench 5.5 - Geekbench 5.1 - 5.4 64 Bit Multi-Core
min: 5528     avg: 6774     median: 6084.5 (11%)     max: 8571 points
Geekbench 5.0 - Geekbench 5.0 64 Bit Single-Core
min: 1402     avg: 1539     median: 1592 (7%)     max: 1602 points
Geekbench 5.0 - Geekbench 5.0 64 Bit Multi-Core
min: 5450     avg: 7106     median: 7643 (24%)     max: 8558 points
Mozilla Kraken 1.1 - Kraken 1.1 Total Score *
min: 485.6     avg: 571     median: 585 (1%)     max: 634 ms
Octane V2 - Octane V2 Total Score
min: 78578     avg: 80181     median: 79131 (71%)     max: 83104 Points
WebXPRT 4 - WebXPRT 4 Score
min: 206     avg: 224     median: 226 (65%)     max: 236 Points
WebXPRT 3 - WebXPRT 3 Score
min: 233     avg: 262.6     median: 251 (52%)     max: 305 Points
PCMark for Android - PCM f. Android Storage 2.0 score
min: 9253     avg: 10006     median: 10006 (16%)     max: 10759 Points
PCMark for Android - PCM f. Android Work Score 3.0
min: 11508     avg: 11533     median: 11533 (53%)     max: 11558 Points
CrossMark - CrossMark Overall
min: 983     avg: 1383     median: 1430.5 (55%)     max: 1644 Points
CrXPRT 2 - CrXPRT2 Performance Score
min: 162     avg: 169.5     median: 169.5 (94%)     max: 177 Points
Power Consumption - Prime95 Power Consumption - external Monitor *
min: 27.8     avg: 43.5     median: 39.8 (7%)     max: 63.2 Watt
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Power Consumption - Cinebench R15 Multi Power Consumption - external Monitor *
min: 28.9     avg: 46.9     median: 44.9 (8%)     max: 69.5 Watt
051015202530354045505560657075808590Tooltip
Power Consumption - Idle Power Consumption - external Monitor *
min: 5.22     avg: 7.9     median: 6.3 (4%)     max: 16.6 Watt
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Power Consumption - Idle Power Consumption 150cd 1min *
min: 3.41     avg: 5.4     median: 5.6 (6%)     max: 7.17 Watt
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Power Consumption - Cinebench R15 Multi Power Efficiency - external Monitor
min: 20.3     avg: 25.3     median: 25.4 (19%)     max: 29 Points per Watt
- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card
* Smaller numbers mean a higher performance

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