Intel Celeron 3865U vs Intel Celeron 3965Y

Intel Celeron 3865U

► remove Intel 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 Celeron 3965Y

► remove Intel 3965Y

The Intel Celeron 3965Y is a low power entry level processor for small laptops or tablets and based on the Kaby Lake architecture. It was announced in Q2 2017 and offers two processor cores clocked at 1.5 GHz (no Turbo Boost). Compared to the Pentium 4410Y, the Celeron 3965Y offers no HyperThreading and therefore can execute only up to two threads simultaneously. The chips also includes the Intel HD Graphics 615 GPU, a dual-channel memory controller (DDR3L/LPDDR3) as well as VP9 and H.265 video de- and encoder. It is still produced in a 14 nm process with FinFET transistors. Currently (2017) it is the slowest Kaby-Lake based processor.

Architecture

Intel basically used the familiar micro architecture from the Skylake generation, so the per-MHz performance is identical. Only the Speed-Shift technology for faster dynamic adjustments of the voltages and clocks was improved, and the matured 14 nm process now also enables much higher frequencies and better efficiency than before. 

Performance

Due to the missing HyperThreading, the Celeron 3965Y is slightly slower than the similar clocked Pentium 4410Y in some multi threaded benchmarks. The single thread performance is due to the missing Turbo Boost significantly worse than the more expensive Core m3-7Y30. This should be noticeable in daily tasks. 

Graphics

The integrated Intel HD Graphics 615 GPU has 24 Execution Units (EUs) like the old HD Graphics 515 and runs with clocks between 300 and 850 MHz in combination with this processor. The performance heavily depends on the TDP limit as well as the memory configuration; with fast LPDDR3-1866 RAM in dual-channel mode, the GPU should sometimes be able to compete with the HD Graphics 520, but can also be much slower in other scenarios. Modern games from 2016 will, if at all, only run smoothly in the lowest settings.

Contrary to Skylake, Kaby Lake now also supports hardware decoding for H.265/HEVC Main10 with a 10-bit color depth as well as Google's VP9 codec.

Power Consumption

The chip is manufactured in an improved 14 nm process with FinFET transistors, so the power efficiency was once again improved significantly. The TDP is rated at 6 Watt and can be reduced to 4,5 Watt (cTDP down).

Intel Celeron 3865UIntel Celeron 3965Y
Intel CeleronIntel Celeron
Kaby LakeKaby Lake
: Celeron Kaby Lake
Intel Celeron 3965U (compare)2200 MHz2 / 22 MB
» Intel Celeron 3865U1800 MHz2 / 22 MB
Intel Celeron 3965Y1500 MHz2 / 22 MB
Intel Celeron 3965U (compare)2200 MHz2 / 22 MB
Intel Celeron 3865U1800 MHz2 / 22 MB
» Intel Celeron 3965Y1500 MHz2 / 22 MB
1800 MHz1500 MHz
128 KB128 KB
512 KB512 KB
2 MB2 MB
2 / 22 / 2
15 6
14 14
100 °C100 °C
BGAFCBGA1515
Dual-Channel LPDDR3-1866/DDR4-2133/DDR3L-1600 Memory Controller, HyperThreading, AVX, AVX2, Quick Sync, Virtualization, AES-NIDual-Channel DDR3L-1600/LPDDR3-1866 Memory Controller, HyperThreading, AVX, AVX2, Quick Sync, Virtualization, AES-NI, TXT
iGPUIntel HD Graphics 610 (300 - 900 MHz)Intel HD Graphics 615 (300 - 850 MHz)
$107 U.S.
Intel Celeron 3865UIntel Celeron 3965Y

Cinebench R15 - CPU Multi 64Bit
142 Points (3%)
Cinebench R15 - CPU Single 64Bit
72 Points (33%)
Cinebench R11.5 - CPU Multi 64Bit
1.7 Points (4%)
Cinebench R11.5 - CPU Single 64Bit
0.9 Points (43%)
Cinebench R10 - Rendering Single 32Bit
2853 Points (31%)
Cinebench R10 - Rendering Multiple CPUs 32Bit
5425 Points (8%)
wPrime 2.0x - 1024m *
1213.3 seconds (14%)
wPrime 2.0x - 32m *
39.4 seconds (8%)
WinRAR - Result
1108 KB/s (13%)
X264 HD Benchmark 4.0 - Pass 2
10.8 fps (0%)
X264 HD Benchmark 4.0 - Pass 1
54.4 fps (20%)
TrueCrypt - Serpent Mean 100MB
0.1 GB/s (4%)
TrueCrypt - Twofish Mean 100MB
0.1 GB/s (4%)
TrueCrypt - AES Mean 100MB
0.8 GB/s (4%)
Super Pi mod 1.5 XS 1M *
21.4 Seconds (5%)
Super Pi mod 1.5 XS 2M *
48.1 Seconds (2%)
Super Pi Mod 1.5 XS 32M *
1120.2 Seconds (5%)
3DMark 11 - Performance Physics 1280x720
1906 points (10%)
3DMark - Ice Storm Standard Physics 1280x720
15039 Points (10%)
3DMark - Ice Storm Extreme Physics 1920x1080
14983 Points (18%)
3DMark - Ice Storm Unlimited Physics 1280x720 offscreen
15647 Points (18%)
3DMark - Cloud Gate Standard Physics 1280x720
1375 Points (3%)
3DMark - Fire Strike Physics 1920x1080
1609 Points (5%)
Geekbench 2 - 32 Bit - Stream
5368 Points (43%)
Geekbench 2 - 32 Bit - Memory
4800 Points (44%)
Geekbench 2 - 32 Bit - Floating Point
2838 Points (5%)
Geekbench 2 - 32 Bit - Integer
3251 Points (6%)
Geekbench 2 - 32 Bit - Total Score
3627 Points (8%)
Geekbench 3 - 32 Bit Multi-Core Score
3224 Points (4%)
Geekbench 3 - 32 Bit Single-Core Score
1843 Points (38%)
Geekbench 3 - 64 Bit Multi-Core Score
3392 Points (9%)
Geekbench 3 - 64 Bit Single-Core Score
1933 Points (39%)
Geekbench 4.0 - Compute OpenCL Score
11389 Points (4%)
Geekbench 4.0 - 64 Bit Multi-Core Score
3564 Points (12%)
Geekbench 4.0 - 64 Bit Single-Core Score
2182 Points (36%)
Geekbench 4.4 - 64 Bit Single-Core Score
2240 Points (35%)
Geekbench 4.4 - 64 Bit Multi-Core Score
3719 Points (6%)
Mozilla Kraken 1.1 - Total Score *
2442.5 ms (4%)
Sunspider - 1.0 Total Score *
176.6 ms (2%)
Octane V2 - Total Score
13961 Points (27%)

Average Benchmarks Intel Celeron 3865U → 100%

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* Smaller numbers mean a higher performance
1 This benchmark is not used for the average calculation

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> Notebook / Laptop Reviews and News > Benchmarks / Tech > Processor Comparison - Head 2 Head
Redaktion, 2017-09- 8 (Update: 2017-09-11)