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Intel Core i7-8650U vs Intel Core i7-7820HQ

Intel Core i7-8650U

► remove from comparison Intel i7-8650U

The Intel Core i7-8650U is a power efficient quad-core SoC for notebooks and Ultrabooks based on the Kaby Lake Refresh generation and was announced in August 2017. Contrary to its direct predecessor the Core i7-7600U, which were still dual-cores, the i7-8650U is equipped with four cores but at a lower base frequency of 1.9 GHz. The Turbo Boost can go up to 4,2 GHz and therefore also offer good short term single core speeds. The GPU is now named Intel UHD Graphics 620 but otherwise identical to the Intel HD Graphics 620. The integrated memory controller supports DDR4-2400 / LPDDR3-2133 and dual channel memory.

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

According to Intel, the new quad core models are up to 40% faster than their dual core predecessors. Due to the reduced TDP and the same 14nm+ process, the long term performance and throttling behaviour will be interesting and depending on the laptop design. Therefore, the older 35 Watt quad-core models should be faster in applications that demand longer CPU loads. The performance however is highly depending on the TDP settings and cooling solution of the laptop. Especially, longer loads will show varying results in different laptops.

Graphics

The integrated Intel UHD Graphics 620 (Intel Gen 9.5) is untouched from the 8th Gen Kaby Lake chips. With fast dual-channel memory it can reach the performance of a dedicated GeForce 920M.

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 (14nm+), the same as the 7th Gen Kaby Lake processors. 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 i7-7820HQ

► remove from comparison Intel i7-7820HQ

The Intel Core i7-7820HQ 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.

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 i7-7820HQ 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 Core i7-8650UIntel Core i7-7820HQ
SeriesIntel Kaby Lake RefreshIntel Kaby Lake
CodenameKaby Lake RefreshKaby Lake
Series: Kaby Lake Kaby Lake
Intel Core i7-8650U « 1.9 - 4.2 GHz4 / 8 cores8 MB L3
Intel Core i7-8550U compare1.8 - 4 GHz4 / 8 cores8 MB L3
Intel Core i5-8350U compare1.7 - 3.6 GHz4 / 8 cores6 MB L3
Intel Core i5-8250U compare1.6 - 3.4 GHz4 / 8 cores6 MB L3
Intel Core i3-8130U compare2.2 - 3.4 GHz2 / 4 cores4 MB L3
Intel Pentium Gold 4417U compare2.3 GHz2 / 4 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 « 2.9 - 3.9 GHz4 / 8 cores8 MB L3
Intel Core i7-7820HK compare2.9 - 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 compare1.8 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
Clock1900 - 4200 MHz2900 - 3900 MHz
L1 Cache256 KB256 KB
L2 Cache1 MB1 MB
L3 Cache8 MB8 MB
Cores / Threads4 / 84 / 8
TDP15 Watt45 Watt
Technology14 nm14 nm
SocketBGA1356
FeaturesDual-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 UHD Graphics 620 (300 - 1150 MHz)Intel HD Graphics 630 (300 - 1150 MHz)
Architecturex86x86
$409 U.S.$378 U.S.
Announced
Manufacturerark.intel.com
max. Temp.100 °C

Benchmarks

Cinebench R15 - Cinebench R15 CPU Multi 64 Bit
min: 451     avg: 589     median: 605 (4%)     max: 675 Points
min: 630     avg: 710     median: 736 (5%)     max: 762 Points
Cinebench R15 - Cinebench R15 CPU Single 64 Bit
min: 128     avg: 165     median: 169 (51%)     max: 178 Points
min: 160     avg: 163     median: 163 (49%)     max: 166 Points
Cinebench R11.5 - Cinebench R11.5 CPU Multi 64 Bit
min: 5.04     avg: 6.4     median: 6.8 (9%)     max: 7.24 Points
min: 7.36     avg: 7.9     median: 8 (10%)     max: 8.28 Points
Cinebench R11.5 - Cinebench R11.5 CPU Single 64 Bit
min: 1.67     avg: 1.9     median: 1.9 (48%)     max: 2.04 Points
min: 1.79     avg: 1.8     median: 1.8 (46%)     max: 1.83 Points
Cinebench R10 - Cinebench R10 Rend. Single (32bit)
min: 5307     avg: 6337     median: 6629 (40%)     max: 6782 Points
min: 5776     avg: 6007     median: 6118 (37%)     max: 6128 Points
Cinebench R10 - Cinebench R10 Rend. Multi (32bit)
min: 16227     avg: 18738     median: 18635 (14%)     max: 21455 Points
min: 21534     avg: 22293     median: 22369 (16%)     max: 22977 Points
Cinebench R10 - Cinebench R10 Rend. Multi (64bit)
21677 Points (15%)
Cinebench R10 - Cinebench R10 Rend. Single (64bit)
6864 Points (8%)
wPrime 2.10 - wPrime 2.0 1024m *
min: 268.3     avg: 301.9     median: 302.8 (4%)     max: 334.6 s
317 s (4%)
wPrime 2.10 - wPrime 2.0 32m *
min: 8.636     avg: 9.6     median: 9.9 (2%)     max: 10.28 s
9.4 s (2%)
wPrime 1.55 - wPrime 1.55 1024m *
413.8 s (2%)
wPrime 1.55 - wPrime 1.55 32m *
10.3 s (5%)
WinRAR - WinRAR 4.0
min: 4140     avg: 4423     median: 4319 (7%)     max: 4915 Points
X264 HD Benchmark 4.0 - x264 Pass 2
min: 35     avg: 39.1     median: 39.8 (14%)     max: 41.98 fps
X264 HD Benchmark 4.0 - x264 Pass 1
min: 149     avg: 165.4     median: 169.6 (39%)     max: 173.2 fps
TrueCrypt - TrueCrypt Serpent
min: 0.393     avg: 0.4     median: 0.4 (0%)     max: 0.444 GB/s
0.4 GB/s (0%)
TrueCrypt - TrueCrypt Twofish
min: 0.662     avg: 0.7     median: 0.7 (12%)     max: 0.733 GB/s
0.7 GB/s (11%)
TrueCrypt - TrueCrypt AES
min: 3.9     avg: 4.2     median: 4.3 (11%)     max: 4.4 GB/s
4.2 GB/s (11%)
3DMark 06 - CPU - 3DMark 06 - CPU
min: 4487     avg: 6716     median: 6936 (15%)     max: 7939 Points
min: 6675     avg: 7448     median: 7679 (16%)     max: 7989 Points
Super Pi mod 1.5 XS 1M - Super Pi mod 1.5 XS 1M *
min: 8     avg: 8.6     median: 8.8 (2%)     max: 9 s
9.6 s (2%)
Super Pi mod 1.5 XS 2M - Super Pi mod 1.5 XS 2M *
min: 19     avg: 19.7     median: 20 (1%)     max: 20.1 s
21.4 s (1%)
Super Pi Mod 1.5 XS 32M - Super Pi mod 1.5 XS 32M *
min: 501     avg: 513     median: 508 (2%)     max: 542 s
527 s (2%)
3DMark Vantage - 3DM Vant. Perf. CPU no Physx
19125 Points (17%)
min: 23800     avg: 26622     median: 27717 (24%)     max: 28349 Points
3DMark 11 - 3DM11 Performance Physics
min: 5168     avg: 7106     median: 6863 (19%)     max: 8887 Points
min: 8362     avg: 9087     median: 9118.5 (25%)     max: 9747 Points
3DMark - 3DMark Ice Storm Physics
min: 39040     avg: 42198     median: 41275 (34%)     max: 47797 Points
45502 Points (37%)
3DMark - 3DMark Ice Storm Extreme Physics
min: 41011     avg: 43029     median: 41405.5 (34%)     max: 48293 Points
3DMark - 3DMark Ice Storm Unlimited Physics
min: 44090     avg: 52920     median: 56455 (48%)     max: 58675 Points
min: 44113     avg: 50414     median: 52957 (45%)     max: 54171 Points
3DMark - 3DMark Cloud Gate Physics
min: 4442     avg: 5935     median: 6089 (15%)     max: 7416 Points
min: 6771     avg: 7398     median: 7384 (19%)     max: 8051 Points
3DMark - 3DMark Fire Strike Standard Physics
min: 6823     avg: 8895     median: 9167 (16%)     max: 10541 Points
min: 9364     avg: 10277     median: 10303.5 (18%)     max: 11138 Points
3DMark - 3DMark Time Spy CPU
min: 2685     avg: 3010     median: 2876 (12%)     max: 3569 Points
min: 3698     avg: 3898     median: 3897.5 (16%)     max: 4097 Points
Mozilla Kraken 1.1 - Kraken 1.1 Total Score *
min: 809     avg: 1126     median: 1076.5 (1%)     max: 1912 ms
min: 913     avg: 972     median: 995 (1%)     max: 1007 ms
Sunspider - Sunspider 1.0 Total Score *
min: 63.8     avg: 74.2     median: 74.4 (1%)     max: 83.1 ms
74.1 ms (1%)
Octane V2 - Octane V2 Total Score
min: 11491     avg: 31341     median: 33906 (30%)     max: 42822 Points
min: 35321     avg: 37525     median: 38182 (34%)     max: 39072 Points
WebXPRT 3 - WebXPRT 3 Score
227 Points (47%)
Power Consumption - Prime95 Power Consumption - external Monitor *
min: 68.4     avg: 79.1     median: 79.1 (14%)     max: 89.7 Watt
Power Consumption - Cinebench R15 Multi Power Consumption - external Monitor *
min: 65.1     avg: 67.7     median: 67.7 (12%)     max: 70.3 Watt
Power Consumption - Cinebench R15 Multi Power Efficiency - external Monitor
min: 10.8     avg: 11.1     median: 11.1 (8%)     max: 11.3 Points per Watt

Average Benchmarks Intel Core i7-8650U → 100% n=25

Average Benchmarks Intel Core i7-7820HQ → 108% 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)