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Intel Celeron 3865U vs Intel Core i7-7820HK

Intel Celeron 3865U

► remove from comparison Intel Celeron 3865U

The Intel Celeron 3865U is an ULV (ultra low voltage) dual-core SoC based on the Kaby-Lake architecture and has been launched in the first quarter of 2017. The CPU can be found in ultrabooks as well as normal notebooks. In addition to two CPU cores clocked at 1.8 GHz (no Turbo Boost, no HyperThreading), the chip also integrates an HD Graphics 610 GPU and a dual-channel DDR4-2133/DDR3L-1600 memory controller. The SoC is manufactured using a 14 nm process with FinFET transistors.

Architecture

Intel basically uses the same micro architecture compared to Skylake, so the per-MHz performance does not differ. The manufacturer only reworked the Speed Shift technology for faster dynamic adjustments of voltages and clocks, and the improved 14nm process allows much higher frequencies combined with better efficiency than before.

Performance

Due to the missing Turbo Boost and the low clock speeds, especially the single thread performance is very limited which results in a lower performance even for lower demanding tasks. The performance should be noticeably slower than the Celeron 3965 which offers 400 MHz higher clocked CPU cores. Therefore, the CPU is only suited for entry level tasks like office, web surfing and multimedia.

Graphics

The integrated graphics unit called HD Graphics 610 (similar to the HD Graphics 510) represents the "GT1" version of the Kaby Lake GPU (Intel Gen. 9). Its 12 Execution Units, also called EUs, are clocked at 300 - 900 MHz and offer a performance somewhat below the older HD Graphics 4400. Only a few games of 2015 can be played smoothly in lowest settings.

Power Consumption

Specified at a TDP of 15 W (including CPU, GPU and memory controller), the CPU is best suited for small notebooks and ultrabooks (11-inches and above). Optionally, the TDP can be lowered to 10 watts (cTDP down), reducing both heat dissipation and performance and allowing even more compact designs.

Intel Core i7-7820HK

► remove from comparison Intel i7-7820HK

The Intel Core i7-7820HK is a fast quad-core processor for notebooks based on the Kaby Lake architecture and was announced in January 2017. It is the second fastest model of the consumer series at the time of the announcement. Only the i7-7920HQ and Xeon E3-1535M v6 are faster. Besides four cores including Hyper-Threading support running at 2.9 - 3.9 GHz (4 cores up to 3.5 GHz, 2 cores up to 3.7 GHz), the processor is also equipped with the HD Graphics 630 GPU as well as a dual-channel memory controller (DDR3L-1600/DDR4-2400). It is manufactured in a 14nm process with FinFET transistors.

Compared to the Core i7-7820HQ, the 7820HK lacks business features like vPro or TXT support.

Architecture

Intel basically uses the same micro architecture compared to Skylake, so the per-MHz performance does not differ. The manufacturer only reworked the Speed Shift technology for faster dynamic adjustments of voltages and clocks, and the improved 14nm process allows much higher frequencies combined with better efficiency than before.

Performance

Due to the higher clock speeds, the performance of the i7-7820HK is slightly faster than the old Skylake top model Core i7-6920HQ (2.9 - 3.8 GHz). The performance is sufficient even for very demanding tasks and on par with powerful desktop quad-core processors.

Graphics

The integrated Intel HD Graphics 630 has 24 Execution Units (similar to previous HD Graphics 530) running at 350 - 1100 MHz. The performance depends a lot on the memory configuration; it should be comparable to a dedicated Nvidia GeForce 920M in combination with fast DDR4-2133 dual-channel memory.

Contrary to Skylake, Kaby Lake now supports hardware decoding for H.265/HEVC Main 10 with a 10-bit color depth as well as Google's VP9 codec. The dual-core Kaby Lake processors, which were announced in January, should also support HDCP 2.2.

Power Consumption

The chip is manufactured in an improved 14nm process with FinFET transistors, which improves the efficiency even further. Intel still specifies the TDP with 45 Watts, but it can also be reduced to 35 Watts by the notebook manufacturers (cTDP down). This will obviously affect the performance, because the Turbo Boost cannot be maintained for longer periods.

ModelIntel Celeron 3865UIntel Core i7-7820HK
SeriesIntel Kaby LakeIntel Kaby Lake
CodenameKaby LakeKaby Lake
Series: Kaby Lake Kaby Lake
Intel Core i7-7700K compare4.2 - 4.5 GHz4 / 8 cores8 MB L3
Intel Core i7-7700 compare3.6 - 4.2 GHz4 / 8 cores8 MB L3
Intel Xeon E3-1535M v6 compare3.1 - 4.2 GHz4 / 8 cores8 MB L3
Intel Core i7-7920HQ compare3.1 - 4.1 GHz4 / 8 cores8 MB L3
Intel Core i7-7700T compare2.9 - 3.8 GHz4 / 8 cores8 MB L3
Intel Core i5-7600K compare3.8 - 4.2 GHz4 / 4 cores8 MB L3
Intel Xeon E3-1505M v6 compare3 - 4 GHz4 / 8 cores8 MB L3
Intel Core i7-7820HQ compare2.9 - 3.9 GHz4 / 8 cores8 MB L3
Intel Core i7-7820HK2.9 - 3.9 GHz4 / 8 cores8 MB L3
Intel Core i7-7700HQ compare2.8 - 3.8 GHz4 / 8 cores6 MB L3
Intel Core i5-7500 compare3.4 - 3.8 GHz4 / 4 cores6 MB L3
Intel Core i5-7440HQ compare2.8 - 3.8 GHz4 / 4 cores6 MB L3
Intel Core i7-7567U compare3.5 - 4 GHz2 / 4 cores4 MB L3
Intel Core i7-7660U compare2.5 - 4 GHz2 / 4 cores4 MB L3
Intel Core i7-7600U compare2.8 - 3.9 GHz2 / 4 cores4 MB L3
Intel Core i5-7300HQ compare2.5 - 3.5 GHz4 / 4 cores6 MB L3
Intel Core i5-7500T compare2.7 - 3.3 GHz4 / 4 cores6 MB L3
Intel Core i5-7287U compare3.3 - 3.7 GHz2 / 4 cores4 MB L3
Intel Core i7-7560U compare2.4 - 3.8 GHz2 / 4 cores4 MB L3
Intel Core i5-7267U compare3.1 - 3.5 GHz2 / 4 cores4 MB L3
Intel Core i5-7360U compare2.3 - 3.6 GHz2 / 4 cores4 MB L3
Intel Core i7-7500U compare2.7 - 3.5 GHz2 / 4 cores4 MB L3
Intel Core i5-7300U compare2.6 - 3.5 GHz2 / 4 cores3 MB L3
Intel Core i5-7260U compare2.2 - 3.4 GHz2 / 4 cores4 MB L3
Intel Core i5-7200U compare2.5 - 3.1 GHz2 / 4 cores3 MB L3
Intel Core i3-7100H compare3 GHz2 / 4 cores3 MB L3
Intel Core i3-7167U compare2.8 GHz2 / 4 cores3 MB L3
Intel Core i7-7Y75 compare1.3 - 3.6 GHz2 / 4 cores4 MB L3
Intel Core i5-7Y57 compare1.2 - 3.3 GHz2 / 4 cores4 MB L3
Intel Core i5-7Y54 compare1.2 - 3.2 GHz2 / 4 cores4 MB L3
Intel Core i3-7100U compare2.4 GHz2 / 4 cores3 MB L3
Intel Core m3-7Y32 compare1 - 3 GHz2 / 4 cores4 MB L3
Intel Pentium Gold 4415U compare2.3 GHz2 / 4 cores2 MB L3
Intel Core m3-7Y30 compare1 - 2.6 GHz2 / 4 cores4 MB L3
Intel Celeron 3965U compare2.2 GHz2 / 2 cores2 MB L3
Intel Core i3-7020U compare2.3 GHz2 / 4 cores3 MB L3
Intel Celeron 3867U compare1.8 GHz2 / 2 cores2 MB L3
Intel Celeron 3865U « 1.8 GHz2 / 2 cores2 MB L3
Intel Pentium Gold 4425Y compare1.7 GHz2 / 4 cores2 MB L3
Intel Pentium Gold 4415Y compare1.6 GHz2 / 4 cores2 MB L3
Intel Pentium Gold 4410Y compare1.5 GHz2 / 4 cores2 MB L3
Intel Celeron 3965Y compare1.5 GHz2 / 2 cores2 MB L3
Intel Core i7-7700K compare4.2 - 4.5 GHz4 / 8 cores8 MB L3
Intel Core i7-7700 compare3.6 - 4.2 GHz4 / 8 cores8 MB L3
Intel Xeon E3-1535M v6 compare3.1 - 4.2 GHz4 / 8 cores8 MB L3
Intel Core i7-7920HQ compare3.1 - 4.1 GHz4 / 8 cores8 MB L3
Intel Core i7-7700T compare2.9 - 3.8 GHz4 / 8 cores8 MB L3
Intel Core i5-7600K compare3.8 - 4.2 GHz4 / 4 cores8 MB L3
Intel Xeon E3-1505M v6 compare3 - 4 GHz4 / 8 cores8 MB L3
Intel Core i7-7820HQ compare2.9 - 3.9 GHz4 / 8 cores8 MB L3
Intel Core i7-7820HK « 2.9 - 3.9 GHz4 / 8 cores8 MB L3
Intel Core i7-7700HQ compare2.8 - 3.8 GHz4 / 8 cores6 MB L3
Intel Core i5-7500 compare3.4 - 3.8 GHz4 / 4 cores6 MB L3
Intel Core i5-7440HQ compare2.8 - 3.8 GHz4 / 4 cores6 MB L3
Intel Core i7-7567U compare3.5 - 4 GHz2 / 4 cores4 MB L3
Intel Core i7-7660U compare2.5 - 4 GHz2 / 4 cores4 MB L3
Intel Core i7-7600U compare2.8 - 3.9 GHz2 / 4 cores4 MB L3
Intel Core i5-7300HQ compare2.5 - 3.5 GHz4 / 4 cores6 MB L3
Intel Core i5-7500T compare2.7 - 3.3 GHz4 / 4 cores6 MB L3
Intel Core i5-7287U compare3.3 - 3.7 GHz2 / 4 cores4 MB L3
Intel Core i7-7560U compare2.4 - 3.8 GHz2 / 4 cores4 MB L3
Intel Core i5-7267U compare3.1 - 3.5 GHz2 / 4 cores4 MB L3
Intel Core i5-7360U compare2.3 - 3.6 GHz2 / 4 cores4 MB L3
Intel Core i7-7500U compare2.7 - 3.5 GHz2 / 4 cores4 MB L3
Intel Core i5-7300U compare2.6 - 3.5 GHz2 / 4 cores3 MB L3
Intel Core i5-7260U compare2.2 - 3.4 GHz2 / 4 cores4 MB L3
Intel Core i5-7200U compare2.5 - 3.1 GHz2 / 4 cores3 MB L3
Intel Core i3-7100H compare3 GHz2 / 4 cores3 MB L3
Intel Core i3-7167U compare2.8 GHz2 / 4 cores3 MB L3
Intel Core i7-7Y75 compare1.3 - 3.6 GHz2 / 4 cores4 MB L3
Intel Core i5-7Y57 compare1.2 - 3.3 GHz2 / 4 cores4 MB L3
Intel Core i5-7Y54 compare1.2 - 3.2 GHz2 / 4 cores4 MB L3
Intel Core i3-7100U compare2.4 GHz2 / 4 cores3 MB L3
Intel Core m3-7Y32 compare1 - 3 GHz2 / 4 cores4 MB L3
Intel Pentium Gold 4415U compare2.3 GHz2 / 4 cores2 MB L3
Intel Core m3-7Y30 compare1 - 2.6 GHz2 / 4 cores4 MB L3
Intel Celeron 3965U compare2.2 GHz2 / 2 cores2 MB L3
Intel Core i3-7020U compare2.3 GHz2 / 4 cores3 MB L3
Intel Celeron 3867U compare1.8 GHz2 / 2 cores2 MB L3
Intel Celeron 3865U1.8 GHz2 / 2 cores2 MB L3
Intel Pentium Gold 4425Y compare1.7 GHz2 / 4 cores2 MB L3
Intel Pentium Gold 4415Y compare1.6 GHz2 / 4 cores2 MB L3
Intel Pentium Gold 4410Y compare1.5 GHz2 / 4 cores2 MB L3
Intel Celeron 3965Y compare1.5 GHz2 / 2 cores2 MB L3
Clock1800 MHz2900 - 3900 MHz
L1 Cache128 KB256 KB
L2 Cache512 KB1 MB
L3 Cache2 MB8 MB
Cores / Threads2 / 24 / 8
TDP15 Watt45 Watt
Technology14 nm14 nm
max. Temp.100 °C100 °C
SocketBGA
FeaturesDual-Channel LPDDR3-1866/DDR4-2133/DDR3L-1600 Memory Controller, HyperThreading, AVX, AVX2, Quick Sync, Virtualization, AES-NIDual-Channel DDR4 Memory Controller, HyperThreading, AVX, AVX2, Quick Sync, Virtualization, AES-NI
iGPUIntel HD Graphics 610 (300 - 900 MHz)Intel HD Graphics 630 (300 - 1150 MHz)
Architecturex86x86
$107 U.S.$378 U.S.
Announced
Manufacturerark.intel.com

Benchmarks

Cinebench R15 - Cinebench R15 CPU Multi 64 Bit
142 Points (1%)
min: 689     avg: 773     median: 770 (5%)     max: 867 Points
Cinebench R15 - Cinebench R15 CPU Single 64 Bit
72 Points (22%)
min: 156     avg: 162.7     median: 162 (49%)     max: 171 Points
Cinebench R11.5 - Cinebench R11.5 CPU Multi 64 Bit
1.7 Points (2%)
min: 8.34     avg: 8.6     median: 8.4 (11%)     max: 9.53 Points
Cinebench R11.5 - Cinebench R11.5 CPU Single 64 Bit
0.9 Points (21%)
min: 1.69     avg: 1.8     median: 1.8 (46%)     max: 1.85 Points
Cinebench R10 - Cinebench R10 Rend. Single (32bit)
2853 Points (17%)
min: 6062     avg: 6231     median: 6182 (37%)     max: 6566 Points
Cinebench R10 - Cinebench R10 Rend. Multi (32bit)
5425 Points (4%)
min: 22793     avg: 23622     median: 23046.5 (17%)     max: 26081 Points
Cinebench R10 - Cinebench R10 Rend. Multi (64bit)
min: 32769     avg: 34129.5     median: 34129.5 (24%)     max: 35490 Points
Cinebench R10 - Cinebench R10 Rend. Single (64bit)
min: 8465     avg: 8558.5     median: 8558.5 (10%)     max: 8652 Points
wPrime 2.10 - wPrime 2.0 1024m *
1213 s (14%)
min: 179.4     avg: 234.7     median: 214.3 (3%)     max: 330.9 s
wPrime 2.10 - wPrime 2.0 32m *
39.4 s (8%)
min: 6.668     avg: 10.4     median: 8.6 (2%)     max: 17.8 s
wPrime 1.55 - wPrime 1.55 1024m *
215.4 s (1%)
wPrime 1.55 - wPrime 1.55 32m *
17.8 s (9%)
WinRAR - WinRAR 4.0
1108 Points (2%)
min: 5114     avg: 5135     median: 5134.5 (8%)     max: 5155 Points
X264 HD Benchmark 4.0 - x264 Pass 2
10.8 fps (4%)
min: 46     avg: 46.9     median: 46.9 (16%)     max: 47.8 fps
X264 HD Benchmark 4.0 - x264 Pass 1
54.4 fps (13%)
min: 177     avg: 178.8     median: 178.8 (41%)     max: 180.6 fps
TrueCrypt - TrueCrypt Serpent
0.1 GB/s (0%)
min: 0.416     avg: 0.5     median: 0.4 (0%)     max: 0.609 GB/s
TrueCrypt - TrueCrypt Twofish
0.1 GB/s (2%)
min: 0.71     avg: 0.7     median: 0.7 (13%)     max: 0.831 GB/s
TrueCrypt - TrueCrypt AES
0.8 GB/s (2%)
min: 3.9     avg: 4.2     median: 4.2 (11%)     max: 4.3 GB/s
3DMark 06 - CPU - 3DMark 06 - CPU
min: 7957     avg: 8098     median: 8038 (17%)     max: 8360 Points
Super Pi mod 1.5 XS 1M - Super Pi mod 1.5 XS 1M *
21.4 s (5%)
min: 9     avg: 9.6     median: 9.6 (2%)     max: 10.5 s
Super Pi mod 1.5 XS 2M - Super Pi mod 1.5 XS 2M *
48.1 s (2%)
min: 20.67     avg: 21.7     median: 21.5 (1%)     max: 23.5 s
Super Pi Mod 1.5 XS 32M - Super Pi mod 1.5 XS 32M *
1120 s (5%)
min: 490.5     avg: 529     median: 535 (2%)     max: 550 s
3DMark Vantage - 3DM Vant. Perf. CPU no Physx
30280 Points (27%)
3DMark 11 - 3DM11 Performance Physics
1906 Points (5%)
min: 9542     avg: 10034     median: 10019 (27%)     max: 10523 Points
3DMark - 3DMark Ice Storm Physics
15039 Points (12%)
min: 51307     avg: 53563     median: 52699.5 (43%)     max: 59600 Points
3DMark - 3DMark Ice Storm Extreme Physics
14983 Points (12%)
min: 50796     avg: 53623     median: 52515.5 (43%)     max: 59482 Points
3DMark - 3DMark Ice Storm Unlimited Physics
15647 Points (13%)
min: 51327     avg: 54058     median: 52784.5 (44%)     max: 60127 Points
3DMark - 3DMark Cloud Gate Physics
1375 Points (3%)
min: 7905     avg: 8141     median: 8001.5 (20%)     max: 9050 Points
3DMark - 3DMark Fire Strike Standard Physics
1609 Points (3%)
min: 11041     avg: 11381     median: 11174 (20%)     max: 12592 Points
3DMark - 3DMark Time Spy CPU
min: 4259     avg: 4439     median: 4447 (19%)     max: 4568 Points
Geekbench 4.4 - Geekbench 4.1 - 4.4 64 Bit Single-Core
2240 Points (22%)
min: 4841     avg: 4897     median: 4896.5 (49%)     max: 4952 Points
Geekbench 4.4 - Geekbench 4.1 - 4.4 64 Bit Multi-Core
3719 Points (4%)
min: 15838     avg: 16002     median: 16001.5 (18%)     max: 16165 Points
Geekbench 4.0 - Geekbench 4.0 64 Bit Single-Core
2182 Points (30%)
min: 4867     avg: 4905     median: 4904.5 (67%)     max: 4942 Points
Geekbench 4.0 - Geekbench 4.0 64 Bit Multi-Core
3564 Points (9%)
min: 15042     avg: 15309     median: 15308.5 (37%)     max: 15575 Points
Geekbench 3 - Geekbench 3 32 Bit Multi-Core
3224 Points (6%)
min: 14323     avg: 15088     median: 14476 (26%)     max: 16465 Points
Geekbench 3 - Geekbench 3 32 Bit Single-Core
1843 Points (36%)
min: 3718     avg: 4002     median: 3926 (77%)     max: 4361 Points
Geekbench 3 - Geekbench 3 64 Bit Multi-Core
3392 Points (5%)
14990 Points (23%)
Geekbench 3 - Geekbench 3 64 Bit Single-Core
1933 Points (29%)
3885 Points (58%)
Geekbench 2 - 32 Bit - Geekbench Stream
5368 Points (43%)
Geekbench 2 - 32 Bit - Geekbench Memory
4800 Points (44%)
Geekbench 2 - 32 Bit - Geekbench Floating Point
2838 Points (6%)
Geekbench 2 - 32 Bit - Geekbench Integer
3251 Points (7%)
Geekbench 2 - 32 Bit - Geekbench Total Score
3627 Points (9%)
Mozilla Kraken 1.1 - Kraken 1.1 Total Score *
2443 ms (3%)
min: 901     avg: 2277     median: 984 (1%)     max: 7545 ms
Sunspider - Sunspider 1.0 Total Score *
176.6 ms (2%)
min: 68.3     avg: 138.2     median: 71.1 (1%)     max: 400.9 ms
Octane V2 - Octane V2 Total Score
13961 Points (13%)
min: 35189     avg: 38766     median: 39000 (35%)     max: 40652 Points

Average Benchmarks Intel Celeron 3865U → 100% n=34

Average Benchmarks Intel Core i7-7820HK → 337% n=34

- 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), 2024, 2023
v1.26
log 19. 06:04:10

#0 checking url part for id 9594 +0s ... 0s

#1 checking url part for id 8415 +0s ... 0s

#2 not redirecting to Ajax server +0s ... 0s

#3 did not recreate cache, as it is less than 5 days old! Created at Tue, 19 Mar 2024 05:32:10 +0100 +0.001s ... 0.001s

#4 composed specs +0.029s ... 0.03s

#5 did output specs +0s ... 0.03s

#6 getting avg benchmarks for device 9594 +0.003s ... 0.032s

#7 got single benchmarks 9594 +0.01s ... 0.042s

#8 getting avg benchmarks for device 8415 +0.003s ... 0.045s

#9 got single benchmarks 8415 +0.066s ... 0.111s

#10 got avg benchmarks for devices +0s ... 0.111s

#11 No cached benchmark found, getting uncached values +0.053s ... 0.164s

#12 No cached benchmark found, getting uncached values +0.003s ... 0.167s

#13 No cached benchmark found, getting uncached values +0.076s ... 0.243s

#14 min, max, avg, median took s +0.135s ... 0.378s

#15 return log +0.026s ... 0.405s

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> Expert Reviews and News on Laptops, Smartphones and Tech Innovations > Benchmarks / Tech > Processor Comparison - Head 2 Head
Redaktion, 2017-09- 8 (Update: 2023-07- 1)