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Intel Core i7-1185G7 vs Intel Core i7-1255U

Intel Core i7-1185G7

► remove from comparison Intel i7-1185G7

The Intel Core i7-1185G7 is a power-efficient quad-core SoC for laptops and Ultrabooks based on the Tiger Lake-U generation (UP3) that was introduced September 2020. It integrates four Willow Cove processor cores (8 threads thanks to Hyper-Threading). Each core can clock from 1.2 GHz (12 W base clock speed), 3 GHz (28 W base clock speed) to 4.8 GHz (single-core boost). All cores at once can clock at up to 4.3 GHz. At the time of announcement, the i7-1185G7 is the fastest model of the line-up. Since early 2021, the i7-1185G7 supports management features like vPro.

Another novelty is the integrated Iris Xe iGPU based on the completely new Gen 12 architecture. It should offer a significantly higher performance compared to the older Iris Plus G7 (Ice Lake). In the i7-1185G7 it uses 96 EUs and clocks between 400 - 1,350 MHz. The GPU and CPU can together use the 12 MB of L3 cache.

Furthermore, Tiger Lake SoCs add PCIe 4 support (four lanes), AI hardware acceleration, and the partial integration of Thunderbolt 4/USB 4 and Wi-Fi 6 in the chip.

Performance

The average 1185G7 in our database is just as fast as AMD's hexa-core Ryzen 5 4500U, as far as multi-thread benchmark scores are concerned. While the i7 is not the fastest Tiger Lake chip by any stretch of imagination, it's more than usable for your productivity and creative apps, with a bit of gaming possible as well.

Thanks to its decent cooling solution and a long-term CPU power limit of 55 W, the Stealth 15M A11SEK is among the fastest laptops powered by the 1185G7 that we know of. It can be almost twice as fast in CPU-bound workloads as the slowest system featuring the same chip in our database, as of August 2023.

Power consumption

This little Core i7 here has a default TDP of 12 W to 28 W, the expectation being that laptop manufacturers will go for a higher value in exchange for higher performance. Either way, that's a tad too high to allow for passively cooled designs.

The chip is manufactured on Intel's third-gen 10 nm process marketed as SuperFin for average, as of late 2022, energy efficiency.

Intel Core i7-1255U

► remove from comparison Intel i7-1255U

The Intel Core i7-1255U is a high-end 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 1.7 to 4.7 GHz on the performance cluster and 1.2 to 3.5 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 i7-1265U (fastest U-series CPU at launch), the 1255 offers 100 MHz lower clocked CPU cores 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 1255U in our database is in the same league as the Ryzen 5 5600U, as far as multi-thread benchmark scores are concerned. Which is nothing to be ashamed of, as of mid 2023.

Thanks to its decent cooling solution and a long-term CPU power limit of 28 W, the Spectre x360 13.5 14t-ef000 is among the fastest laptops built around the 1255U that we know of. It can be 20% faster in CPU-bound workloads than 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 all 96 EUs (Execution Units) operating at up to 1.25 GHz.

Power consumption

This Core i7 has a "minimum assured" power consumption of 12 W. Its Base power consumption sits at 15 W and its maximum Intel-recommended Turbo power consumption isn't supposed to exceed 55 W. All those values are too high to allow for pasisvely cooled designs.

Last but not the least, Core i7-1255U is built with Intel's fourth-gen 10 nm process marketed as Intel 7 for decent, as of late 2022, energy efficiency.

ModelIntel Core i7-1185G7Intel Core i7-1255U
SeriesIntel Tiger LakeIntel Alder Lake-M
CodenameTiger Lake-UP3Alder Lake-U
Series: Alder Lake-M Alder Lake-U
Intel Core i7-1195G7 compare2.9 - 5 GHz4 / 8 cores12 MB L3
Intel Core i7-1185G7 « 3 - 4.8 GHz4 / 8 cores12 MB L3
Intel Core i7-1165G7 compare2.8 - 4.7 GHz4 / 8 cores12 MB L3
Intel Core i5-1155G7 compare2.5 - 4.5 GHz4 / 8 cores8 MB L3
Intel Core i5-1145G7 compare2.6 - 4.4 GHz4 / 8 cores8 MB L3
Intel Core i5-1135G7 compare2.4 - 4.2 GHz4 / 8 cores8 MB L3
Intel Core i3-1125G4 compare2 - 3.7 GHz4 / 8 cores8 MB L3
Intel Core i3-1115G4 compare3 - 4.1 GHz2 / 4 cores6 MB L3
Intel Core i7-1265U compare1.3 - 4.8 GHz10 / 12 cores12 MB L3
Intel Core i7-1255U « 1.2 - 4.7 GHz10 / 12 cores12 MB L3
Intel Core i5-1245U compare1.2 - 4.4 GHz10 / 12 cores12 MB L3
Intel Core i5-1235U compare0.9 - 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
Clock3000 - 4800 MHz1200 - 4700 MHz
L1 Cache320 KB928 KB
L2 Cache5 MB9.5 MB
L3 Cache12 MB12 MB
Cores / Threads4 / 810 / 12
TDP28 Watt15 Watt
Technology10 nm10 nm
max. Temp.100 °C100 °C
SocketBGA1449BGA1744
FeaturesDDR4-3200/LPDDR4x-4266 RAM, PCIe 4, 4 GT/s bus, DL Boost, GNA, MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX, AVX2, AVX-512, BMI2, ABM, FMA, ADX, VMX, SMX, SMEP, SMAP, EIST, TM1, TM2, HT, Turbo, SST, AES-NI, RDRAND, RDSEED, SHA, TMEDDR4-3200/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
iGPUIntel Iris Xe Graphics G7 96EUs (400 - 1350 MHz)Intel Iris Xe Graphics G7 96EUs ( - 1250 MHz)
Architecturex86x86
Announced
Manufacturerark.intel.comark.intel.com

Benchmarks

Performance Rating - CB R15 + R20 + 7-Zip + X265 + Blender + 3DM11 CPU - i7-1185G7
34.4 pt (48%)
Performance Rating - CB R15 + R20 + 7-Zip + X265 + Blender + 3DM11 CPU - i7-1255U
37.9 pt (53%)
Cinebench R23 - Cinebench R23 Multi Core
min: 3610     avg: 5324     median: 5383.5 (5%)     max: 6383 Points
min: 5269     avg: 8198     median: 8332 (8%)     max: 9628 Points
Cinebench R23 - Cinebench R23 Single Core
min: 1251     avg: 1449     median: 1455.5 (62%)     max: 1532 Points
min: 1425     avg: 1649     median: 1656 (70%)     max: 1775 Points
Cinebench R20 - Cinebench R20 CPU (Single Core)
min: 489     avg: 557     median: 558.5 (62%)     max: 593 Points
min: 550     avg: 635     median: 638 (71%)     max: 682 Points
Cinebench R20 - Cinebench R20 CPU (Multi Core)
min: 1425     avg: 2039     median: 2090 (5%)     max: 2493 Points
min: 2095     avg: 3116     median: 3131 (8%)     max: 3702 Points
Cinebench R15 - Cinebench R15 CPU Multi 64 Bit
min: 617     avg: 859     median: 866 (5%)     max: 1066 Points
min: 919     avg: 1365     median: 1400 (9%)     max: 1577 Points
Cinebench R15 - Cinebench R15 CPU Single 64 Bit
min: 168     avg: 215.4     median: 217 (65%)     max: 230 Points
min: 161     avg: 229.4     median: 238.5 (72%)     max: 251 Points
Cinebench R11.5 - Cinebench R11.5 CPU Multi 64 Bit
min: 8.99     avg: 9.3     median: 9.3 (12%)     max: 9.67 Points
Cinebench R11.5 - Cinebench R11.5 CPU Single 64 Bit
min: 2.52     avg: 2.5     median: 2.5 (63%)     max: 2.56 Points
Cinebench R10 - Cinebench R10 Rend. Single (32bit)
min: 8782     avg: 8872     median: 8872 (54%)     max: 8962 Points
Cinebench R10 - Cinebench R10 Rend. Multi (32bit)
min: 26426     avg: 27025     median: 27024.5 (20%)     max: 27623 Points
Cinebench R10 - Cinebench R10 Rend. Multi (64bit)
min: 35564     avg: 36392     median: 36391.5 (25%)     max: 37219 Points
Cinebench R10 - Cinebench R10 Rend. Single (64bit)
min: 10927     avg: 11135     median: 11135 (14%)     max: 11343 Points
wPrime 2.10 - wPrime 2.0 1024m *
240.4 s (3%)
wPrime 2.10 - wPrime 2.0 32m *
min: 5.71     avg: 6     median: 5.8 (1%)     max: 6.875 s
WinRAR - WinRAR 4.0
6045 Points (10%)
7-Zip 18.03 - 7-Zip 18.03 Multli Thread 4 runs
min: 18812     avg: 23288     median: 23471 (13%)     max: 27693 MIPS
min: 24126     avg: 34066     median: 36825 (21%)     max: 37365 MIPS
7-Zip 18.03 - 7-Zip 18.03 Single Thread 4 runs
min: 3678     avg: 5112     median: 5153 (62%)     max: 5507 MIPS
min: 5150     avg: 5308     median: 5256 (63%)     max: 5529 MIPS
X264 HD Benchmark 4.0 - x264 Pass 2
46.6 fps (16%)
X264 HD Benchmark 4.0 - x264 Pass 1
198.8 fps (46%)
HWBOT x265 Benchmark v2.2 - HWBOT x265 4k Preset
min: 5.02     avg: 6.6     median: 6.6 (12%)     max: 8.13 fps
min: 6.31     avg: 9.2     median: 9.7 (17%)     max: 10.1 fps
TrueCrypt - TrueCrypt Serpent
0.5 GB/s (0%)
TrueCrypt - TrueCrypt Twofish
0.8 GB/s (14%)
TrueCrypt - TrueCrypt AES
5.8 GB/s (15%)
Blender - Blender 3.3 Classroom CPU *
min: 1099     avg: 1103     median: 1102.5 (14%)     max: 1106 Seconds
min: 683     avg: 772     median: 723 (9%)     max: 1156 Seconds
Blender - Blender 2.79 BMW27 CPU *
min: 478     avg: 588     median: 578.5 (4%)     max: 745 Seconds
min: 372     avg: 419.7     median: 383 (3%)     max: 601 Seconds
R Benchmark 2.5 - R Benchmark 2.5 *
min: 0.55     avg: 0.6     median: 0.6 (13%)     max: 0.615 sec
min: 0.4688     avg: 0.5     median: 0.5 (11%)     max: 0.558 sec
3DMark 06 - CPU - 3DMark 06 - CPU
9108 Points (19%)
Super Pi mod 1.5 XS 1M - Super Pi mod 1.5 XS 1M *
7.1 s (2%)
Super Pi mod 1.5 XS 2M - Super Pi mod 1.5 XS 2M *
15.6 s (1%)
Super Pi Mod 1.5 XS 32M - Super Pi mod 1.5 XS 32M *
380.4 s (2%)
3DMark Vantage - 3DM Vant. Perf. CPU no Physx
29182 Points (26%)
3DMark 11 - 3DM11 Performance Physics
min: 5707     avg: 10641     median: 11284 (31%)     max: 12726 Points
min: 8097     avg: 14121     median: 15314 (41%)     max: 16890 Points
3DMark - 3DMark Ice Storm Physics
min: 69716     avg: 71020     median: 71351 (58%)     max: 71993 Points
3DMark - 3DMark Ice Storm Extreme Physics
min: 69895     avg: 70538     median: 70537.5 (57%)     max: 71180 Points
3DMark - 3DMark Ice Storm Unlimited Physics
min: 67339     avg: 69256     median: 69331.5 (58%)     max: 71022 Points
3DMark - 3DMark Cloud Gate Physics
min: 5114     avg: 8442     median: 8804 (22%)     max: 10133 Points
min: 7665     avg: 10433     median: 10520 (27%)     max: 12522 Points
3DMark - 3DMark Fire Strike Standard Physics
min: 7886     avg: 13151     median: 13684 (24%)     max: 14680 Points
min: 11482     avg: 17380     median: 18157 (32%)     max: 20193 Points
3DMark - 3DMark Time Spy CPU
min: 2489     avg: 4447     median: 4495 (19%)     max: 5608 Points
min: 1124     avg: 5468     median: 6140 (26%)     max: 7649 Points
Geekbench 5.5 - Geekbench 5.1 - 5.4 64 Bit Single-Core
min: 1398     avg: 1520     median: 1529 (65%)     max: 1626 Points
min: 1560     avg: 1640     median: 1650.5 (70%)     max: 1712 Points
Geekbench 5.5 - Geekbench 5.1 - 5.4 64 Bit Multi-Core
min: 4620     avg: 5460     median: 5550 (10%)     max: 5944 Points
min: 4463     avg: 7315     median: 7989.5 (14%)     max: 8821 Points
Geekbench 5.0 - Geekbench 5.0 64 Bit Single-Core
min: 1217     avg: 1485     median: 1531.5 (7%)     max: 1561 Points
min: 1523     avg: 1607     median: 1610.5 (7%)     max: 1684 Points
Geekbench 5.0 - Geekbench 5.0 64 Bit Multi-Core
min: 4542     avg: 5511     median: 5578.5 (18%)     max: 6349 Points
min: 4557     avg: 6900     median: 7294.5 (23%)     max: 8452 Points
Geekbench 4.4 - Geekbench 4.1 - 4.4 64 Bit Single-Core
min: 5587     avg: 6340     median: 6437 (64%)     max: 6682 Points
Geekbench 4.4 - Geekbench 4.1 - 4.4 64 Bit Multi-Core
min: 20763     avg: 22357     median: 22175 (24%)     max: 25403 Points
Mozilla Kraken 1.1 - Kraken 1.1 Total Score *
min: 618     avg: 649     median: 645 (1%)     max: 695 ms
min: 476.2     avg: 586     median: 571 (1%)     max: 727 ms
Sunspider - Sunspider 1.0 Total Score *
97.3 ms (1%)
Octane V2 - Octane V2 Total Score
min: 59942     avg: 62365     median: 61608 (55%)     max: 66300 Points
min: 75963     avg: 82625     median: 82948 (75%)     max: 88687 Points
WebXPRT 4 - WebXPRT 4 Score
min: 189.4     avg: 189.9     median: 189.9 (55%)     max: 190.4 Points
min: 183.4     avg: 230     median: 232 (67%)     max: 249 Points
WebXPRT 3 - WebXPRT 3 Score
min: 230     avg: 251.2     median: 253 (53%)     max: 270 Points
min: 200     avg: 274.6     median: 275 (57%)     max: 366 Points
PCMark for Android - PCM f. Android Storage 2.0 score
9895 Points (16%)
PCMark for Android - PCM f. Android Work Score 3.0
11617 Points (54%)
CrossMark - CrossMark Overall
min: 1233     avg: 1343     median: 1325 (51%)     max: 1474 Points
min: 1329     avg: 1461     median: 1475 (56%)     max: 1573 Points
CrXPRT 2 - CrXPRT2 Performance Score
173 Points (96%)
Power Consumption - Prime95 Power Consumption - external Monitor *
min: 26.9     avg: 43.8     median: 44.6 (8%)     max: 59.4 Watt
min: 24.3     avg: 43.1     median: 44 (8%)     max: 51.2 Watt
Power Consumption - Cinebench R15 Multi Power Consumption - external Monitor *
min: 33.7     avg: 48.1     median: 46.9 (9%)     max: 68.3 Watt
min: 27.8     avg: 56.4     median: 55.6 (10%)     max: 75.9 Watt
Power Consumption - Idle Power Consumption - external Monitor *
10.6 Watt (7%)
min: 4.09     avg: 6.5     median: 6.2 (4%)     max: 11.6 Watt
Power Consumption - Idle Power Consumption 150cd 1min *
4.1 Watt (5%)
min: 3.55     avg: 9.4     median: 6.4 (7%)     max: 30.7 Watt
Power Consumption - Cinebench R15 Multi Power Efficiency - external Monitor
min: 12.3     avg: 17.3     median: 17.5 (13%)     max: 21.1 Points per Watt
min: 18.7     avg: 25     median: 24.5 (18%)     max: 33.1 Points per Watt

Average Benchmarks Intel Core i7-1185G7 → 100% n=25

Average Benchmarks Intel Core i7-1255U → 124% n=25

- 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)