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Intel Core i5-1235U vs Intel Core i5-1240U

Intel Core i5-1235U

► remove from comparison 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.

Intel Core i5-1240U

► remove from comparison Intel i5-1240U

The Intel Core i5-1240U is a 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 1.1 to 4.4 GHz on the performance cluster and 0.8 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 similar Core i7-1260U, the 1240U offers lower clocked CPU cores, a slower iGPU, but the same "Enterprise" vPro management features.

Performance

Compared to the old 7 Watt Comet Lake-Y series (like the i7-10510Y), the performance should be clearly better thanks to the 10 cores and the improved architecture of the P-cores. Compared to the 15 W U-series (like the similar specified Core i5-1245U) the sustained performance will be clearly limited by the 9 Watt TDP. As always, the performance will also greatly depend on the cooling solution, especially for fanless laptops and tablets.

Features

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 0.9 GHz.

The CPU is rated at 9 W base power (TDP, PL1) and 29 W max. Turbo power (PL2) and the whole SoC is manufactured on a 10nm process at Intel, which is known as Intel 7.

ModelIntel Core i5-1235UIntel Core i5-1240U
SeriesIntel Alder Lake-MIntel Alder Lake-M
CodenameAlder Lake-UAlder 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 i5-1240U0.8 - 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
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 i5-1235U0.9 - 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 « 0.8 - 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
Clock900 - 4400 MHz800 - 4400 MHz
L1 Cache928 KB928 KB
L2 Cache9.5 MB9.5 MB
L3 Cache12 MB12 MB
Cores / Threads10 / 1210 / 12
TDP15 Watt9 Watt
Technology10 nm10 nm
max. Temp.100 °C100 °C
SocketBGA1744BGA1781
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, SHALPDDR4x-4266/LPDDR5-5200 RAM, PCIe 4, Thr. Director, DL Boost, GNA, vPro Enterp., RPE, 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, TME
iGPUIntel Iris Xe Graphics G7 80EUs ( - 1200 MHz)Intel Iris Xe Graphics G7 80EUs ( - 900 MHz)
Architecturex86x86
Announced
Manufacturerark.intel.comark.intel.com

Benchmarks

Performance Rating - CB R15 + R20 + 7-Zip + X265 + Blender + 3DM11 CPU - i5-1235U
35.9 pt (50%)
Performance Rating - CB R15 + R20 + 7-Zip + X265 + Blender + 3DM11 CPU - i5-1240U
35.3 pt (49%)
Cinebench R23 - Cinebench R23 Multi Core
min: 2485     avg: 6225     median: 5902 (5%)     max: 9208 Points
7902 Points (7%)
Cinebench R23 - Cinebench R23 Single Core
min: 1444     avg: 1588     median: 1610 (68%)     max: 1698 Points
1559 Points (66%)
Cinebench R20 - Cinebench R20 CPU (Single Core)
min: 566     avg: 613     median: 620 (69%)     max: 651 Points
596 Points (66%)
Cinebench R20 - Cinebench R20 CPU (Multi Core)
min: 1783     avg: 2695     median: 2797 (7%)     max: 3537 Points
2990 Points (7%)
Cinebench R15 - Cinebench R15 CPU Multi 64 Bit
min: 785     avg: 1129     median: 1086 (7%)     max: 1587 Points
1242 Points (8%)
Cinebench R15 - Cinebench R15 CPU Single 64 Bit
min: 151.5     avg: 212.1     median: 214 (64%)     max: 242.3 Points
226 Points (68%)
7-Zip 18.03 - 7-Zip 18.03 Multli Thread 4 runs
min: 20166     avg: 30814     median: 31892 (18%)     max: 38643 MIPS
31097 MIPS (18%)
7-Zip 18.03 - 7-Zip 18.03 Single Thread 4 runs
min: 4371     avg: 4970     median: 5083 (61%)     max: 5233 MIPS
4446 MIPS (53%)
HWBOT x265 Benchmark v2.2 - HWBOT x265 4k Preset
min: 4.99     avg: 7.8     median: 9.2 (16%)     max: 9.43 fps
9.1 fps (16%)
Blender - Blender 3.3 Classroom CPU *
min: 707     avg: 951     median: 859 (11%)     max: 1374 Seconds
744 Seconds (9%)
Blender - Blender 2.79 BMW27 CPU *
min: 366     avg: 490.9     median: 448 (3%)     max: 662 Seconds
407 Seconds (3%)
R Benchmark 2.5 - R Benchmark 2.5 *
min: 0.4986     avg: 0.5     median: 0.5 (11%)     max: 0.603 sec
0.5 sec (11%)
3DMark 11 - 3DM11 Performance Physics
min: 7465     avg: 11189     median: 10063 (27%)     max: 15604 Points
12746 Points (34%)
3DMark - 3DMark Ice Storm Physics
67708 Points (55%)
3DMark - 3DMark Cloud Gate Physics
min: 6543     avg: 9959     median: 10446 (26%)     max: 12476 Points
10240 Points (26%)
3DMark - 3DMark Fire Strike Standard Physics
min: 9965     avg: 15665     median: 16969 (30%)     max: 19386 Points
15715 Points (28%)
3DMark - 3DMark Time Spy CPU
min: 3133     avg: 5134     median: 5092 (21%)     max: 7083 Points
6274 Points (26%)
Geekbench 6.2 - Geekbench 6.2 Single-Core
2208 Points (67%)
Geekbench 6.2 - Geekbench 6.2 Multi-Core
7046 Points (28%)
Geekbench 5.5 - Geekbench 5.1 - 5.4 64 Bit Single-Core
min: 1426     avg: 1547     median: 1572 (66%)     max: 1643 Points
1596 Points (67%)
Geekbench 5.5 - Geekbench 5.1 - 5.4 64 Bit Multi-Core
min: 5528     avg: 6865     median: 6220 (11%)     max: 8571 Points
7066 Points (13%)
Geekbench 5.0 - Geekbench 5.0 64 Bit Single-Core
min: 1402     avg: 1539     median: 1592 (7%)     max: 1602 Points
1547 Points (7%)
Geekbench 5.0 - Geekbench 5.0 64 Bit Multi-Core
min: 5450     avg: 7106     median: 7643 (24%)     max: 8558 Points
7029 Points (22%)
Mozilla Kraken 1.1 - Kraken 1.1 Total Score *
min: 485.6     avg: 567     median: 584.5 (1%)     max: 634 ms
659 ms (1%)
Sunspider - Sunspider 1.0 Total Score *
99.6 ms (1%)
Octane V2 - Octane V2 Total Score
min: 78578     avg: 80479     median: 80117 (72%)     max: 83104 Points
WebXPRT 4 - WebXPRT 4 Score
min: 214     avg: 226     median: 231 (66%)     max: 236 Points
221 Points (64%)
WebXPRT 3 - WebXPRT 3 Score
min: 240     avg: 265.6     median: 261 (54%)     max: 305 Points
266 Points (55%)
PCMark for Android - PCM f. Android Storage 2.0 score
min: 9253     avg: 10006     median: 10006 (18%)     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: 1398     median: 1467 (56%)     max: 1644 Points
1363 Points (52%)
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: 44.3     median: 41.4 (7%)     max: 63.2 Watt
48.2 Watt (8%)
Power Consumption - Cinebench R15 Multi Power Consumption - external Monitor *
min: 28.9     avg: 48.2     median: 51.8 (9%)     max: 69.5 Watt
45.9 Watt (8%)
Power Consumption - Idle Power Consumption - external Monitor *
min: 5.22     avg: 8.2     median: 6.3 (4%)     max: 16.6 Watt
6.7 Watt (4%)
Power Consumption - Idle Power Consumption 150cd 1min *
min: 3.41     avg: 5.3     median: 5.3 (6%)     max: 7.17 Watt
7.8 Watt (9%)
Power Consumption - Cinebench R15 Multi Power Efficiency - external Monitor
min: 20.3     avg: 24.6     median: 25.3 (19%)     max: 27.2 Points per Watt
27.1 Points per Watt (20%)

Average Benchmarks Intel Core i5-1235U → 100% n=24

Average Benchmarks Intel Core i5-1240U → 103% n=24

- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card
* Smaller numbers mean a higher performance
1 This benchmark is not used for the average calculation

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v1.26
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Redaktion, 2017-09- 8 (Update: 2023-07- 1)