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Intel Pentium 8500 vs Intel Core i7-1255U

Intel Pentium 8500

► remove from comparison Intel Pentium 8500

The Intel Pentium 8500 is an entry-level low-power mobile CPU for thin and light laptops based on the Alder Lake architecture. It was announced in early 2022 and offers one performance core (P-cores, Golden Cove architecture) and 4 efficient cores (E-cores, Gracemont architecture). The P-cores support Hyper-Threading leading to 6 supported threads when combined with the E-cores. The clock rate ranges from 1 to 4.4 GHz on the performance cluster and 0.7 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 8 MB L3-cache. Compared to the faster Core i3-1210U, the Pentium offers one less P-core.

Performance

Thanks to the 5 cores, the multi-threaded performance should be clearly faster than the older dual-core Tiger Lake CPUs with 15 Watt (like the Intel Core i3-1115G4). The sustained performance will be limited by the TDP setting (e.g., compared to the similar Pentium 8505 with 15W) 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.

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 48 of the 96 EUs (Execution Units) operating at up to 0.8 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.

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

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.

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 all 96 EUs (Execution Units) operating at up to 1.25 GHz.

The CPU is rated at 15 W base power (TDP, PL1) and 55 W max. Turbo power (PL2) and the whole SoC is manufactured in a 10nm process at Intel, which is known as Intel 7.

ModelIntel Pentium 8500Intel Core i7-1255U
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 i7-1255U1.2 - 4.7 GHz10 / 1212 MB
Intel Core i5-1245U compare1.2 - 4.4 GHz10 / 1212 MB
Intel Core i5-1235U compare0.9 - 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 i5-1240U compare0.8 - 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 85000.7 - 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 i7-1255U1.2 - 4.7 GHz10 / 1212 MB
Intel Core i5-1245U compare1.2 - 4.4 GHz10 / 1212 MB
Intel Core i5-1235U compare0.9 - 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 i5-1240U compare0.8 - 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 85000.7 - 4.4 GHz5 / 68 MB
Intel Celeron 7305 compare0.9 - 1.1 GHz5 / 58 MB
Intel Celeron 7300 compare0.7 - 1 GHz5 / 58 MB
Clock700 - 4400 MHz1200 - 4700 MHz
L1 Cache464 KB928 KB
L2 Cache9.3 MB18.5 MB
L3 Cache8 MB12 MB
Cores / Threads5 / 610 / 12
TDP9 Watt15 Watt
Technology10 nm10 nm
max. Temp.100 °C100 °C
SocketBGA1700BGA1700
FeaturesThread DirectorThread Director
iGPUIntel UHD Graphics Xe G4 48EUs ( - 800 MHz)Intel Iris Xe Graphics G7 96EUs ( - 1250 MHz)
Architecturex86x86
Announced

Benchmarks

Performance Rating - CB R15 + R20 + 7-Zip + X265 + Blender + 3DM11 CPU - i7-1255U
50.8 pt (60%)
Cinebench R23 - Cinebench R23 Multi Core
min: 5269     avg: 6995     median: 7385 (12%)     max: 8332 Points
Cinebench R23 - Cinebench R23 Single Core
min: 1425     avg: 1652     median: 1756 (87%)     max: 1775 Points
Cinebench R20 - Cinebench R20 CPU (Single Core)
min: 550     avg: 634     median: 669 (86%)     max: 682 Points
Cinebench R20 - Cinebench R20 CPU (Multi Core)
min: 2095     avg: 2699     median: 2870 (12%)     max: 3131 Points
Cinebench R15 - Cinebench R15 CPU Multi 64 Bit
min: 919     avg: 1195     median: 1229.5 (13%)     max: 1400 Points
07515022530037545052560067575082590097510501125120012751350Tooltip
Cinebench R15 - Cinebench R15 CPU Single 64 Bit
min: 213     avg: 238     median: 250 (86%)     max: 251 Points
7-Zip 18.03 - 7-Zip 18.03 Multli Thread 4 runs
min: 24126     avg: 30442     median: 29874 (21%)     max: 37325 MIPS
7-Zip 18.03 - 7-Zip 18.03 Single Thread 4 runs
min: 5168     avg: 5387     median: 5464 (78%)     max: 5529 MIPS
HWBOT x265 Benchmark v2.2 - HWBOT x265 4k Preset
min: 6.31     avg: 8.3     median: 8.7 (19%)     max: 9.92 fps
05101520Tooltip
Blender - Blender 3.2 Classroom CPU *
min: 726     avg: 941     median: 941 (16%)     max: 1156 Seconds
Blender - Blender 2.79 BMW27 CPU *
min: 381     avg: 466     median: 416 (3%)     max: 601 Seconds
R Benchmark 2.5 - R Benchmark 2.5 *
min: 0.4688     avg: 0.5     median: 0.5 (10%)     max: 0.558 sec
3DMark 11 - 3DM11 Performance Physics
min: 8097     avg: 11460     median: 11779 (41%)     max: 14505 Points
3DMark - 3DMark Cloud Gate Physics
min: 7665     avg: 9649     median: 9940 (25%)     max: 11343 Points
3DMark - 3DMark Fire Strike Standard Physics
min: 11482     avg: 14726     median: 15185 (37%)     max: 17512 Points
3DMark - 3DMark Time Spy CPU
min: 3623     avg: 5108     median: 5117 (27%)     max: 6584 Points
Geekbench 5.4 - Geekbench 5.1 - 5.4 64 Bit Single-Core
min: 1640     avg: 1671     median: 1661 (81%)     max: 1712 Points
Geekbench 5.4 - Geekbench 5.1 - 5.4 64 Bit Multi-Core
min: 5419     avg: 6767     median: 6778 (24%)     max: 8105 Points
Geekbench 5.0 - Geekbench 5.0 64 Bit Single-Core
min: 1523     avg: 1590     median: 1563 (79%)     max: 1684 Points
Geekbench 5.0 - Geekbench 5.0 64 Bit Multi-Core
min: 4557     avg: 6382     median: 6348 (20%)     max: 8241 Points
Mozilla Kraken 1.1 - Kraken 1.1 Total Score *
min: 559     avg: 617     median: 564 (1%)     max: 727 ms
Sunspider - Sunspider 1.0 Total Score *
97.3 ms (1%)
Octane V2 - Octane V2 Total Score
75963 Points (78%)
WebXPRT 3 - WebXPRT 3 Score
min: 200     avg: 257     median: 285 (75%)     max: 286 Points
CrossMark - CrossMark Overall
min: 1329     avg: 1452     median: 1454 (63%)     max: 1573 Points
Power Consumption - Prime95 Power Consumption - external Monitor *
min: 24.3     avg: 38.8     median: 41.8 (7%)     max: 50.2 Watt
05101520253035404550556065Tooltip
Power Consumption - Cinebench R15 Multi Power Consumption - external Monitor *
min: 27.8     avg: 43.3     median: 50.4 (13%)     max: 51.6 Watt
05101520253035404550556065Tooltip
Power Consumption - Idle Power Consumption - external Monitor *
11.6 Watt (11%)
012345678910111213Tooltip
Power Consumption - Idle Power Consumption 150cd *
min: 5.49     avg: 18.1     median: 18.1 (59%)     max: 30.7 Watt
051015202530354045Tooltip
Power Consumption - Cinebench R15 Multi Power Efficiency - external Monitor
min: 22.5     avg: 25.2     median: 25.2 (29%)     max: 27.8 Points per Watt

Average Benchmarks Intel Core i7-1255U → 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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show all (including archived), 2022, 2021
v1.17
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> Notebook / Laptop Reviews and News > Benchmarks / Tech > Processor Comparison - Head 2 Head
Redaktion, 2017-09- 8 (Update: 2017-09-11)