Intel Core i7-7660U vs Intel Core i5-7267U

Intel Core i7-7660U

► remove from comparison Intel i7-7660U

The Intel Core i7-7660U is a fast dual-core SoC for notebooks and Ultrabooks based on the Kaby Lake architecture and was announced in January 2017. The CPU has two processor cores clocked at 2.5-4 GHz (two cores up to 3.8 GHz). The processor can execute up to four threads simultaneously thanks to Hyper Threading. It is also equipped with an Intel Iris Plus Graphics 640 GPU with 64 MB eDRAm, a dual-channel memory controller (DDR4) as well as VP9 and H.265 video decoding as well as encoding. The chip is still manufactured in a 14nm process with FinFET transistors.

Compared to the Core i7-7600U, the 7660 does have a higher single-core Turbo of 4 GHz (+100 MHz), but a lower dual-core Turbo (-100 MHz) and a lower base frequency (-300 MHz). However, the CPU part can also use the 64 MB eDRAM as L5 cache.

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

At 2.5-4 GHz, the Core i7-7660U has a slightly lower frequency (except for the single-core Turbo) compared to the Core i7-7600U, but the CPU part can also use the 64 MB eDRAM, so the performance should be similar.

Graphics

The integrated Intel Iris Plus 640 Graphics is the GT3e model of the Kaby Lake GPU (Intel Gen. 9.5). It has 48 Execution Units running at 300-1050 MHz and the performance is comparable to a GeForce 920MX thanks to fast eDRAM cache. However, there aren't any significant improvements compared to the old Iris Pro 540, so modern games can often not be played smoothly or only at the lowest or medium settings, respectively.

Contrary to Skylake, Kaby lake now also supports H.265/HEVC Main 10 with a 10-bit color depth as well as Google's VP9 codec. The dual-core Kaby Lake processors 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 15 Watts, which is typical for ULV chips. Depending on the usage scenario, the TDP can vary between 7.5 (cTDP Down) and 25 Watts.

Intel Core i5-7267U

► remove from comparison

The Intel Core i5-7267U is a fast dual-core SoC for notebooks based on the Kaby Lake architecture and was announced in January 2017. The CPU has two processor cores clocked at 3.1-3.5 GHz (two cores also up to 3.5 GHz). The processor can execute up to four threads simultaneously thanks to Hyper Threading. It is also equipped with an Intel Iris Plus Graphics 650 GPU with 64 MB eDRAM, a dual-channel memory controller (DDR4) as well as VP9 and H.265 video decoding as well as encoding. The chip is still manufactured in a 14nm 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

The performance of the 28-Watt CPU should be on par with the Core i7-7500U (2.7-3.5 GHz, no eDRAM, 15 Watts), but it should be a bit slower on practice due to the missing level 4 eDRAM and the lower TDP. This means the i5 is still one of the faster dual-core processors and should be sufficient for most scenarios. Some games might still require a real quad-core processor and therefore nit run perfectly on the dual-core processor, despite Hyper Threading.

Graphics

The integrated Intel Iris Plus 650 Graphics is the GT3e model of the Kaby Lake GPU (Intel Gen. 9.5). It has 48 Execution Units running at 300-1050 MHz and the performance is comparable to a GeForce 920MX thanks to fast eDRAM cache. However, there aren't any significant improvements compared to the old Iris Pro 550, so modern games can often not be played smoothly or only at the lowest or medium settings, respectively.

Contrary to Skylake, Kaby lake now also supports H.265/HEVC Main 10 with a 10-bit color depth as well as Google's VP9 codec. The dual-core Kaby Lake processors 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 specifies the TDP with 28 Watts, which can be reduced to 23 Watts (cTDP Down) depending on the usage scenario. The TDP is pretty high compared to the common 15-Watt TDP for dual-core processors, but allows a better utilization of CPU and GPU Turbo.

Intel Core i7-7660UIntel Core i5-7267U
Intel Kaby LakeIntel Kaby Lake
Kaby LakeKaby Lake
Series: Kaby Lake Kaby Lake
Intel Core i7-7700K compare4.2 - 4.5 GHz4 / 88 MB
Intel Core i7-7700 compare3.6 - 4.2 GHz4 / 88 MB
Intel Xeon E3-1535M v6 compare3.1 - 4.2 GHz4 / 88 MB
Intel Core i7-7920HQ compare3.1 - 4.1 GHz4 / 88 MB
Intel Core i7-7700T compare2.9 - 3.8 GHz4 / 88 MB
Intel Core i5-7600K compare3.8 - 4.2 GHz4 / 48 MB
Intel Xeon E3-1505M v6 compare3 - 4 GHz4 / 88 MB
Intel Core i7-7820HQ compare2.9 - 3.9 GHz4 / 88 MB
Intel Core i7-7820HK compare2.9 - 3.9 GHz4 / 88 MB
Intel Core i7-7700HQ compare2.8 - 3.8 GHz4 / 86 MB
Intel Core i5-7500 compare3.4 - 3.8 GHz4 / 46 MB
Intel Core i5-7440HQ compare2.8 - 3.8 GHz4 / 46 MB
Intel Core i7-7567U compare3.5 - 4 GHz2 / 44 MB
» Intel Core i7-7660U2.5 - 4 GHz2 / 44 MB
Intel Core i7-7600U compare2.8 - 3.9 GHz2 / 44 MB
Intel Core i5-7300HQ compare2.5 - 3.5 GHz4 / 46 MB
Intel Core i5-7500T compare2.7 - 3.3 GHz4 / 46 MB
Intel Core i5-7287U compare3.3 - 3.7 GHz2 / 44 MB
Intel Core i7-7560U compare2.4 - 3.8 GHz2 / 44 MB
Intel Core i5-7360U compare2.3 - 3.6 GHz2 / 44 MB
Intel Core i5-7267U3.1 - 3.5 GHz2 / 44 MB
Intel Core i7-7500U compare2.7 - 3.5 GHz2 / 44 MB
Intel Core i5-7300U compare2.6 - 3.5 GHz2 / 43 MB
Intel Core i5-7260U compare2.2 - 3.4 GHz2 / 44 MB
Intel Core i5-7200U compare2.5 - 3.1 GHz2 / 43 MB
Intel Core i3-7100H compare3 GHz2 / 43 MB
Intel Core i3-7167U compare2.8 GHz2 / 43 MB
Intel Core i3-7130U compare2.7 GHz2 / 43 MB
Intel Core i7-7Y75 compare1.3 - 3.6 GHz2 / 44 MB
Intel Core i5-7Y57 compare1.2 - 3.3 GHz2 / 44 MB
Intel Core i5-7Y54 compare1.2 - 3.2 GHz2 / 44 MB
Intel Core i3-7100U compare2.4 GHz2 / 43 MB
Intel Core m3-7Y32 compare1 - 3 GHz2 / 44 MB
Intel Pentium Gold 4415U compare2.3 GHz2 / 42 MB
Intel Core m3-7Y30 compare1 - 2.6 GHz2 / 44 MB
Intel Celeron 3965U compare2.2 GHz2 / 22 MB
Intel Core i3-7020U compare2.3 GHz2 / 43 MB
Intel Celeron 3867U compare1.8 GHz2 / 22 MB
Intel Celeron 3865U compare1.8 GHz2 / 22 MB
Intel Pentium Gold 4425Y compare1.7 GHz2 / 42 MB
Intel Pentium Gold 4415Y compare1.6 GHz2 / 42 MB
Intel Pentium Gold 4410Y compare1.5 GHz2 / 42 MB
Intel Celeron 3965Y compare1.5 GHz2 / 22 MB
Intel Core i7-7700K compare4.2 - 4.5 GHz4 / 88 MB
Intel Core i7-7700 compare3.6 - 4.2 GHz4 / 88 MB
Intel Xeon E3-1535M v6 compare3.1 - 4.2 GHz4 / 88 MB
Intel Core i7-7920HQ compare3.1 - 4.1 GHz4 / 88 MB
Intel Core i7-7700T compare2.9 - 3.8 GHz4 / 88 MB
Intel Core i5-7600K compare3.8 - 4.2 GHz4 / 48 MB
Intel Xeon E3-1505M v6 compare3 - 4 GHz4 / 88 MB
Intel Core i7-7820HQ compare2.9 - 3.9 GHz4 / 88 MB
Intel Core i7-7820HK compare2.9 - 3.9 GHz4 / 88 MB
Intel Core i7-7700HQ compare2.8 - 3.8 GHz4 / 86 MB
Intel Core i5-7500 compare3.4 - 3.8 GHz4 / 46 MB
Intel Core i5-7440HQ compare2.8 - 3.8 GHz4 / 46 MB
Intel Core i7-7567U compare3.5 - 4 GHz2 / 44 MB
Intel Core i7-7660U2.5 - 4 GHz2 / 44 MB
Intel Core i7-7600U compare2.8 - 3.9 GHz2 / 44 MB
Intel Core i5-7300HQ compare2.5 - 3.5 GHz4 / 46 MB
Intel Core i5-7500T compare2.7 - 3.3 GHz4 / 46 MB
Intel Core i5-7287U compare3.3 - 3.7 GHz2 / 44 MB
Intel Core i7-7560U compare2.4 - 3.8 GHz2 / 44 MB
Intel Core i5-7360U compare2.3 - 3.6 GHz2 / 44 MB
» Intel Core i5-7267U3.1 - 3.5 GHz2 / 44 MB
Intel Core i7-7500U compare2.7 - 3.5 GHz2 / 44 MB
Intel Core i5-7300U compare2.6 - 3.5 GHz2 / 43 MB
Intel Core i5-7260U compare2.2 - 3.4 GHz2 / 44 MB
Intel Core i5-7200U compare2.5 - 3.1 GHz2 / 43 MB
Intel Core i3-7100H compare3 GHz2 / 43 MB
Intel Core i3-7167U compare2.8 GHz2 / 43 MB
Intel Core i3-7130U compare2.7 GHz2 / 43 MB
Intel Core i7-7Y75 compare1.3 - 3.6 GHz2 / 44 MB
Intel Core i5-7Y57 compare1.2 - 3.3 GHz2 / 44 MB
Intel Core i5-7Y54 compare1.2 - 3.2 GHz2 / 44 MB
Intel Core i3-7100U compare2.4 GHz2 / 43 MB
Intel Core m3-7Y32 compare1 - 3 GHz2 / 44 MB
Intel Pentium Gold 4415U compare2.3 GHz2 / 42 MB
Intel Core m3-7Y30 compare1 - 2.6 GHz2 / 44 MB
Intel Celeron 3965U compare2.2 GHz2 / 22 MB
Intel Core i3-7020U compare2.3 GHz2 / 43 MB
Intel Celeron 3867U compare1.8 GHz2 / 22 MB
Intel Celeron 3865U compare1.8 GHz2 / 22 MB
Intel Pentium Gold 4425Y compare1.7 GHz2 / 42 MB
Intel Pentium Gold 4415Y compare1.6 GHz2 / 42 MB
Intel Pentium Gold 4410Y compare1.5 GHz2 / 42 MB
Intel Celeron 3965Y compare1.5 GHz2 / 22 MB
2500 - 4000 MHz3100 - 3500 MHz
128 KB128 KB
512 KB512 KB
4 MB4 MB
2 / 42 / 4
15 28
14 14
100 °C100 °C
BGA1356BGA1356
Dual-Channel DDR4 Memory Controller, HyperThreading, AVX, AVX2, Quick Sync, Virtualization, AES-NIDual-Channel DDR4 Memory Controller, HyperThreading, AVX, AVX2, Quick Sync, Virtualization, AES-NI
iGPUIntel Iris Plus Graphics 640 (300 - 1050 MHz)Intel Iris Plus Graphics 650 (300 - 1050 MHz)
Architecturex86x86
$415 U.S.$304 U.S.
Intel Kaby Lake i5-7267U

Benchmarks

Cinebench R15 - Cinebench R15 CPU Multi 64 Bit
min: 397     avg: 404     median: 403.5 (9%)     max: 410 Points
0102030405060708090100110120130140150160170180190200210220230240250260270280290300310320330340350360370380390400410Tooltip
383 Points (9%)
0102030405060708090100110120130140150160170180190200210220230240250260270280290300310320330340350360370380390Tooltip
Cinebench R15 - Cinebench R15 CPU Single 64 Bit
min: 154     avg: 159     median: 158.5 (58%)     max: 163 Points
141 Points (52%)
Cinebench R11.5 - Cinebench R11.5 CPU Multi 64 Bit
min: 4.39     avg: 4.5     median: 4.5 (9%)     max: 4.55 Points
4.1 Points (8%)
Cinebench R11.5 - Cinebench R11.5 CPU Single 64 Bit
min: 1.84     avg: 1.9     median: 1.9 (59%)     max: 1.89 Points
1.5 Points (49%)
Cinebench R10 - Cinebench R10 Rend. Single (32bit)
min: 6126     avg: 6170     median: 6169.5 (55%)     max: 6213
5010 (45%)
Cinebench R10 - Cinebench R10 Rend. Multi (32bit)
min: 13779     avg: 13809     median: 13808.5 (23%)     max: 13838
11403 (19%)
wPrime 2.10 - wPrime 2.0 1024m *
min: 433     avg: 436     median: 435.5 (5%)     max: 438 s
492 s (6%)
wPrime 2.10 - wPrime 2.0 32m *
min: 12.6     avg: 12.9     median: 12.9 (3%)     max: 13.2 s
15.6 s (3%)
WinRAR - WinRAR 4.0
3243 (21%)
X264 HD Benchmark 4.0 - x264 Pass 2
min: 25     avg: 25.3     median: 25.3 (11%)     max: 25.6 fps
21.9 fps (10%)
X264 HD Benchmark 4.0 - x264 Pass 1
min: 134     avg: 137     median: 136.5 (40%)     max: 139 fps
119 fps (35%)
TrueCrypt - TrueCrypt Serpent
0.2 GB/s (10%)
0.2 GB/s (8%)
TrueCrypt - TrueCrypt Twofish
0.4 GB/s (11%)
0.3 GB/s (9%)
TrueCrypt - TrueCrypt AES
2.4 GB/s (9%)
1.9 GB/s (7%)
Blender 2.79 - Blender 2.79 BMW27 CPU *
1257 Seconds (9%)
3DMark 06 - CPU - 3DMark 06 - CPU
min: 5193     avg: 5227     median: 5226.5 (29%)     max: 5260 Points
4378 Points (24%)
Super Pi mod 1.5 XS 1M - Super Pi mod 1.5 XS 1M *
12.1 s (3%)
Super Pi mod 1.5 XS 2M - Super Pi mod 1.5 XS 2M *
27.7 s (1%)
Super Pi Mod 1.5 XS 32M - Super Pi mod 1.5 XS 32M *
626 s (3%)
3DMark 11 - 3DM11 Performance Physics
min: 4463     avg: 5069     median: 5230 (21%)     max: 5513 Points
4896 Points (20%)
3DMark - 3DMark Ice Storm Unlimited Physics
57582 Points (60%)
44493 Points (46%)
3DMark - 3DMark Cloud Gate Physics
min: 3823     avg: 3936     median: 3935.5 (10%)     max: 4048 Points
3712 Points (9%)
3DMark - 3DMark Fire Strike Standard Physics
min: 5412     avg: 5561     median: 5560.5 (14%)     max: 5709 Points
5169 Points (13%)
3DMark - 3DMark Time Spy CPU
min: 1979     avg: 1990     median: 1989.5 (14%)     max: 2000 Points
2044 Points (14%)
Geekbench 3 - Geekbench 3 64 Bit Multi-Core
8570 (13%)
Geekbench 3 - Geekbench 3 64 Bit Single-Core
4074 (83%)
Geekbench 4.0 - Geekbench 4.0 64 Bit Single-Core
4603 (71%)
Geekbench 4.0 - Geekbench 4.0 64 Bit Multi-Core
8952 (22%)
Geekbench 4.1 - 4.4 - Geekbench 4.1 - 4.4 64 Bit Single-Core
4786 (65%)
min: 3972     avg: 4182     median: 4181.5 (57%)     max: 4391
Geekbench 4.1 - 4.4 - Geekbench 4.1 - 4.4 64 Bit Multi-Core
9320 (15%)
min: 8084     avg: 8706     median: 8706 (14%)     max: 9328
Mozilla Kraken 1.1 - Kraken 1.1 Total Score *
min: 927     avg: 938     median: 937.7 (2%)     max: 948.4 ms
820 ms (1%)
Sunspider - Sunspider 1.0 Total Score *
min: 65.2     avg: 65.6     median: 65.6 (1%)     max: 66 ms
110 ms (1%)
Octane V2 - Octane V2 Total Score
min: 35767     avg: 36437     median: 36436.5 (58%)     max: 37106 Points
38960 Points (62%)
Power Consumption - Prime95 Power Consumption - external Monitor *
min: 39.2     avg: 40     median: 40 (11%)     max: 40.8 Watt
42.8 Watt (11%)
Power Consumption - Cinebench R15 Multi Power Consumption - external Monitor *
min: 39.2     avg: 40     median: 40 (11%)     max: 40.8 Watt
29.5 Watt (8%)

Average Benchmarks Intel Core i7-7660U → 100% n=24

Average Benchmarks Intel Core i5-7267U → 90% n=24

- 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)