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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

Thanks to the 10 cores, the multi-threaded performance should be clearly faster than the older quad-core Tiger Lake CPUs with 15 Watt (like the Intel Core i7-1160G7). The sustained performance will be limited by the TDP setting and thermals and therefore only short term loads. Thanks to the architectural improvements of the big Golden Cove cores, the single thread performance should be better than similar clocked Tiger Lake CPUs.

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. Core i5-1235U is manufactured on Intel's third-gen 10 nm process marketed as Intel 7 for decent 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 in 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 / 1212 MB
Intel Core i7-1255U compare1.2 - 4.7 GHz10 / 1212 MB
Intel Core i5-1245U compare1.2 - 4.4 GHz10 / 1212 MB
» Intel Core i5-1235U0.9 - 4.4 GHz10 / 1212 MB
Intel Core i7-1260U compare0.8 - 4.7 GHz10 / 1212 MB
Intel Core i7-1250U compare0.8 - 4.7 GHz10 / 1212 MB
Intel Core i3-1215U compare0.9 - 4.4 GHz6 / 810 MB
Intel Core i5-1240U0.8 - 4.4 GHz10 / 1212 MB
Intel Core i5-1230U compare0.7 - 4.4 GHz10 / 1212 MB
Intel Pentium 8505 compare0.9 - 4.4 GHz5 / 68 MB
Intel Core i3-1210U compare0.7 - 4.4 GHz6 / 810 MB
Intel Pentium 8500 compare0.7 - 4.4 GHz5 / 68 MB
Intel Celeron 7305 compare0.9 - 1.1 GHz5 / 58 MB
Intel Celeron 7300 compare0.7 - 1 GHz5 / 58 MB
Intel Core i7-1265U compare1.3 - 4.8 GHz10 / 1212 MB
Intel Core i7-1255U compare1.2 - 4.7 GHz10 / 1212 MB
Intel Core i5-1245U compare1.2 - 4.4 GHz10 / 1212 MB
Intel Core i5-1235U0.9 - 4.4 GHz10 / 1212 MB
Intel Core i7-1260U compare0.8 - 4.7 GHz10 / 1212 MB
Intel Core i7-1250U compare0.8 - 4.7 GHz10 / 1212 MB
Intel Core i3-1215U compare0.9 - 4.4 GHz6 / 810 MB
» Intel Core i5-1240U0.8 - 4.4 GHz10 / 1212 MB
Intel Core i5-1230U compare0.7 - 4.4 GHz10 / 1212 MB
Intel Pentium 8505 compare0.9 - 4.4 GHz5 / 68 MB
Intel Core i3-1210U compare0.7 - 4.4 GHz6 / 810 MB
Intel Pentium 8500 compare0.7 - 4.4 GHz5 / 68 MB
Intel Celeron 7305 compare0.9 - 1.1 GHz5 / 58 MB
Intel Celeron 7300 compare0.7 - 1 GHz5 / 58 MB
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
SocketBGA1700BGA1700
FeaturesThread DirectorThread Director
iGPUIntel Iris Xe Graphics G7 80EUs ( - 1200 MHz)Intel Iris Xe Graphics G7 80EUs ( - 900 MHz)
Architecturex86x86
Announced

Benchmarks

Performance Rating - CB R15 + R20 + 7-Zip + X265 + Blender + 3DM11 CPU - i5-1235U
40.9 pt (45%)
Cinebench R23 - Cinebench R23 Multi Core
min: 2485     avg: 5085     median: 4868 (8%)     max: 8117 Points
Cinebench R23 - Cinebench R23 Single Core
min: 1444     avg: 1572     median: 1572.5 (69%)     max: 1698 Points
Cinebench R20 - Cinebench R20 CPU (Single Core)
min: 566     avg: 607     median: 605.5 (70%)     max: 651 Points
Cinebench R20 - Cinebench R20 CPU (Multi Core)
min: 1783     avg: 2496     median: 2373 (10%)     max: 3456 Points
Cinebench R15 - Cinebench R15 CPU Multi 64 Bit
min: 785     avg: 988     median: 949 (10%)     max: 1268 Points
0651301952603253904555205856507157808459109751040110511701235Tooltip
Cinebench R15 - Cinebench R15 CPU Single 64 Bit
min: 151.5     avg: 199.3     median: 203.9 (62%)     max: 238 Points
7-Zip 18.03 - 7-Zip 18.03 Multli Thread 4 runs
min: 20166     avg: 28669     median: 28108.5 (17%)     max: 38291 MIPS
7-Zip 18.03 - 7-Zip 18.03 Single Thread 4 runs
min: 4371     avg: 4866     median: 4930.5 (59%)     max: 5233 MIPS
HWBOT x265 Benchmark v2.2 - HWBOT x265 4k Preset
min: 4.99     avg: 7.4     median: 7.7 (16%)     max: 9.39 fps
05101520Tooltip
Blender - Blender 3.3 Classroom CPU *
min: 846     avg: 1031     median: 872 (15%)     max: 1374 Seconds
Blender - Blender 2.79 BMW27 CPU *
min: 399     avg: 523     median: 515.5 (4%)     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: 10392     median: 9248.5 (25%)     max: 15604 Points
3DMark - 3DMark Ice Storm Physics
67708 Points (44%)
3DMark - 3DMark Cloud Gate Physics
min: 6543     avg: 9620     median: 9730.5 (25%)     max: 12476 Points
3DMark - 3DMark Fire Strike Standard Physics
min: 9965     avg: 15062     median: 15448.5 (29%)     max: 19386 Points
3DMark - 3DMark Time Spy CPU
min: 3133     avg: 4985     median: 4939.5 (25%)     max: 6928 Points
Geekbench 5.4 - Geekbench 5.1 - 5.4 64 Bit Single-Core
min: 1456     avg: 1548     median: 1547.5 (67%)     max: 1641 Points
Geekbench 5.4 - Geekbench 5.1 - 5.4 64 Bit Multi-Core
min: 5614     avg: 6995     median: 6971 (24%)     max: 8422 Points
Geekbench 5.0 - Geekbench 5.0 64 Bit Single-Core
min: 1402     avg: 1533     median: 1594 (71%)     max: 1602 Points
Geekbench 5.0 - Geekbench 5.0 64 Bit Multi-Core
min: 5450     avg: 6443     median: 5578 (18%)     max: 8302 Points
Mozilla Kraken 1.1 - Kraken 1.1 Total Score *
min: 580     avg: 602     median: 585 (1%)     max: 634 ms
WebXPRT 4 - WebXPRT 4 Score
min: 214     avg: 224.3     median: 224.5 (71%)     max: 234 Points
WebXPRT 3 - WebXPRT 3 Score
min: 240     avg: 253.6     median: 241 (64%)     max: 275 Points
CrossMark - CrossMark Overall
min: 983     avg: 1335     median: 1430.5 (55%)     max: 1495 Points
Power Consumption - Prime95 Power Consumption - external Monitor *
min: 27.8     avg: 43     median: 41.4 (7%)     max: 62.9 Watt
05101520253035404550556065Tooltip
Power Consumption - Cinebench R15 Multi Power Consumption - external Monitor *
min: 28.9     avg: 46     median: 51.8 (11%)     max: 64.4 Watt
05101520253035404550556065Tooltip
Power Consumption - Idle Power Consumption - external Monitor *
min: 6.06     avg: 6.2     median: 6.2 (6%)     max: 6.33 Watt
01234567Tooltip
Power Consumption - Cinebench R15 Multi Power Efficiency - external Monitor
min: 24.5     avg: 25.7     median: 25.5 (29%)     max: 27.2 Points per Watt

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

- 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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Redaktion, 2017-09- 8 (Update: 2017-09-11)