Intel Core i5-8265U vs Intel Core i5-8250U vs Intel Core i7-8550U

Intel Core i5-8265U

► remove

The Intel Core i5-8265U is a power efficient quad-core SoC for notebooks and Ultrabooks based on the Whiskey Lake generation and will probably be announced in August 2018. Compared to the similar named Kaby Lake-R processors (e.g. Core i5-8250U), the Whiskey Lake CPUs are now produced in a further improved 14nm process (14nm++) and offer higher clock speeds. The architecture and features are the same. The i5-8265U offers e.g. high Turbo clock speeds of 3,9 GHz (versus 3,4 GHz of the i5-8250U) for a single core (3.8 for two cores, 3.7 GHz for all four cores). The integrated GPU is still named Intel UHD Graphics 620 and the dual-channel memory controller still supports the same RAM speeds as Kaby-Lake-R (DDR4-2400 / LPDDR3-2133). Thermal Velocity Boost is not supported (only in the Core i7-8565U).

The Whiskey Lake SoCs are used with a new PCH produced in 14nm that supports USB 3.1 Gen 2 (10 Gbps) and CNVi WiFi/BT parts.

Architecture

Intel basically uses the same micro architecture compared to Skylake and Kaby Lake, so the per-MHz performance does not differ. That means Whiskey Lake is a Kaby Lake chip manufactured in the improved 14nm++ process.

Performance

The performance of the i5-8265U depends on the cooling solution of the laptop and the defined TDP limits for short and long term performance. We already saw big differences for Kaby Lake-R (e.g., i7-8550U benchmarks), especially for long term (sustained) performance. Therefore, it will be interesting to see how the additionalTurbo  clock speed can be made use of. For the Core i7, Intel estimates between 3-11% higher performance to the Kaby-Lake-R generation and that should be similar in the Core i5 (as long as the cooling is sufficient).

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 and Whiskey 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 a further improved 14nm process with FinFET transistors (14nm++), the same as the 8th Gen Coffee 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.

Warning: Above information is partly still based on rumors and leaks and may therefore change till release.

Intel Core i5-8250U

► remove Intel 8250U

The Intel Core i5-8250U 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 i5-7200U, which were still dual-cores, the i7-8250U is equipped with four cores but at a lower base frequency of 1.6 GHz. The Turbo Boost can go up to 3,4 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 behavior 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.

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 i7-8550U

► remove Intel 8550U

The Intel Core i7-8550U 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 predecessors Core i7-7500U and i5-7260U, respectively, which were still dual-cores, the i7-8550U is equipped with four cores but at a lower base frequency of 1.8 GHz. The Turbo Boost is not specified yet, but should be at least 3.7 - 4 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

The performance of the i7-8550U depends on the cooling solution of the laptop and the defined TDP limits for short and long term performance. This leads to big differences in our benchmark scores ranging from the 15 Watt reference by Intel up to the 23% higher score of the Inspiron 17-7773 in the Cinebench R15 Multi benchmark. Especially when taxing the CPU for longer periods, these differences can be even higher.

In our usual benchmarks, the average i7-8550U is as fast as the 35 Watt rated Core i5-7440HQ. For single thread performance, the high Turbo Boost frequency helps achieving one of the highest scores for mobile CPUs.

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 i5-8265UIntel Core i5-8250UIntel Core i7-8550U
Intel Core i5Intel Kaby Lake RefreshIntel Kaby Lake Refresh
Whiskey Lake-UKaby Lake RefreshKaby Lake Refresh
: Kaby Lake Refresh Kaby Lake Refresh
Intel Core i5-8365U1600 - 4100 MHz4 / 86 MB
» Intel Core i5-8265U1600 - 3900 MHz4 / 86 MB
Intel Core i7-8650U1900 - 4200 MHz4 / 88 MB
Intel Core i7-8550U1800 - 4000 MHz4 / 88 MB
Intel Core i5-8350U1700 - 3600 MHz4 / 86 MB
» Intel Core i5-8250U1600 - 3400 MHz4 / 86 MB
Intel Core i3-8130U2200 - 3400 MHz2 / 44 MB
Intel Pentium Gold 4417U2300 MHz2 / 42 MB
Intel Core i7-8650U1900 - 4200 MHz4 / 88 MB
» Intel Core i7-8550U1800 - 4000 MHz4 / 88 MB
Intel Core i5-8350U1700 - 3600 MHz4 / 86 MB
Intel Core i5-8250U1600 - 3400 MHz4 / 86 MB
Intel Core i3-8130U2200 - 3400 MHz2 / 44 MB
Intel Pentium Gold 4417U2300 MHz2 / 42 MB
1600 - 3900 MHz1600 - 3400 MHz1800 - 4000 MHz
256 KB256 KB256 KB
1 MB1 MB1 MB
6 MB6 MB8 MB
4 / 84 / 84 / 8
15 15 15
14 14 14
BGA1528BGA1356BGA1356
Dual-Channel DDR4 Memory Controller, HyperThreading, AVX, AVX2, Quick Sync, Virtualization, AES-NIDual-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 - 1100 MHz)Intel UHD Graphics 620 (300 - 1100 MHz)Intel UHD Graphics 620 (300 - 1150 MHz)
$297 U.S.$409 U.S.

Cinebench R20 - CPU (Single Core)
min: 325     avg: 390     median: 399 (78%)     max: 403 Points
351 Points (68%)
383 Points (75%)
Cinebench R20 - CPU (Multi Core)
min: 1103     avg: 1338     median: 1367 (15%)     max: 1564 Points
1117 Points (13%)
1138 Points (13%)
Cinebench R15 - CPU Multi 64Bit
min: 457     avg: 594     median: 601.5 (14%)     max: 750 Points
0102030405060708090100110120130140150160170180190200210220230240250260270280290300310320330340350360370380390400410420430440450460470480490500510520530540550560570580590600610620630640650660670680690700710720730740750Tooltip
min: 320     avg: 568     median: 555 (13%)     max: 730 Points
0102030405060708090100110120130140150160170180190200210220230240250260270280290300310320330340350360370380390400410420430440450460470480490500510520530540550560570580590600610620630640650660670680690700710720730740Tooltip
min: 301     avg: 569     median: 551 (13%)     max: 761 Points
0102030405060708090100110120130140150160170180190200210220230240250260270280290300310320330340350360370380390400410420430440450460470480490500510520530540550560570580590600610620630640650660670680690700710720730740750760770Tooltip
Cinebench R15 - CPU Single 64Bit
min: 111     avg: 155     median: 158 (72%)     max: 164 Points
min: 81     avg: 141     median: 144 (66%)     max: 147 Points
min: 108     avg: 160     median: 163.5 (75%)     max: 172 Points
Cinebench R11.5 - CPU Multi 64Bit
min: 5.22     avg: 6     median: 5.7 (15%)     max: 7.22 Points
min: 3.15     avg: 6     median: 5.9 (15%)     max: 7.76 Points
min: 4.38     avg: 6.3     median: 6.1 (16%)     max: 8.56 Points
Cinebench R11.5 - CPU Single 64Bit
min: 1.73     avg: 1.8     median: 1.8 (72%)     max: 1.88 Points
min: 0.91     avg: 1.6     median: 1.6 (67%)     max: 1.79 Points
min: 1.43     avg: 1.8     median: 1.9 (77%)     max: 1.95 Points
Cinebench R10 - Rendering Single 32Bit
min: 5841     avg: 6044     median: 6082 (62%)     max: 6209 Points
min: 5349     avg: 5631     median: 5533 (57%)     max: 8356 Points
min: 4202     avg: 6333     median: 6423 (66%)     max: 8211 Points
Cinebench R10 - Rendering Multiple CPUs 32Bit
min: 16318     avg: 18952     median: 19418 (33%)     max: 22962 Points
min: 14148     avg: 18261     median: 17987 (30%)     max: 22097 Points
min: 11694     avg: 17867     median: 17321.5 (29%)     max: 24180 Points
Cinebench R10 - Rendering Multiple CPUs 64Bit
min: 18924     avg: 21959     median: 21775.5 (29%)     max: 25361 Points
min: 11245     avg: 23585     median: 23873 (31%)     max: 28932 Points
min: 12279     avg: 23153     median: 22717 (30%)     max: 31667 Points
Cinebench R10 - Rendering Single CPUs 64Bit
min: 7705     avg: 7880     median: 7919 (74%)     max: 7975 Points
min: 5163     avg: 6972     median: 7174 (67%)     max: 8153 Points
min: 6737     avg: 8065     median: 8370.5 (78%)     max: 8436 Points
wPrime 2.0x - 1024m *
min: 371.408     avg: 402     median: 402.4 (5%)     max: 433.343 seconds
min: 243.336     avg: 310     median: 310.4 (4%)     max: 402.09 seconds
min: 257.514     avg: 352     median: 366.7 (4%)     max: 435 seconds
wPrime 2.0x - 32m *
min: 9.635     avg: 11     median: 11 (2%)     max: 12.41 seconds
min: 7.394     avg: 9     median: 8.2 (2%)     max: 13.753 seconds
min: 7.047     avg: 9.8     median: 9.9 (2%)     max: 12.7 seconds
wPrime 1.55 - 1024m *
847 seconds (3%)
wPrime 1.55 - 32m *
26.3 seconds (14%)
WinRAR - Result
min: 3215     avg: 4040     median: 3988 (47%)     max: 4916 KB/s
min: 3632     avg: 3991     median: 3991 (47%)     max: 4350 KB/s
min: 3847     avg: 4487     median: 4374 (51%)     max: 5287 KB/s
7-Zip 18.03 - 7z b 4
min: 14779     avg: 16847     median: 17229.5 (19%)     max: 18802 MIPS
min: 15003     avg: 16204     median: 16204 (17%)     max: 17405 MIPS
7-Zip 18.03 - 7z b 4 -mmt1
min: 3780     avg: 4073     median: 4156.5 (27%)     max: 4195 MIPS
min: 3726     avg: 3826     median: 3825.5 (25%)     max: 3925 MIPS
X264 HD Benchmark 4.0 - Pass 2
min: 31.9     avg: 37.2     median: 39.1 (25%)     max: 40.5 fps
min: 29.5     avg: 32.8     median: 32 (20%)     max: 37.7 fps
min: 32     avg: 35.3     median: 33.1 (21%)     max: 41 fps
X264 HD Benchmark 4.0 - Pass 1
min: 150.5     avg: 159     median: 156 (55%)     max: 169.47 fps
min: 124.58     avg: 139     median: 137.5 (49%)     max: 157.6 fps
min: 143.6     avg: 154     median: 147.9 (53%)     max: 178 fps
HWBOT x265 Benchmark v2.2 - 4k Preset
min: 3.9     avg: 4.4     median: 4.4 (16%)     max: 4.8 fps
01020Tooltip
min: 3.89     avg: 4.3     median: 4.3 (15%)     max: 4.78 fps
01020Tooltip
min: 3.88     avg: 4.2     median: 4.2 (15%)     max: 4.43 fps
010Tooltip
TrueCrypt - Serpent Mean 100MB
min: 0.427     avg: 0.5     median: 0.5 (24%)     max: 0.464 GB/s
min: 0.336     avg: 0.4     median: 0.4 (21%)     max: 0.415 GB/s
min: 0.357     avg: 0.4     median: 0.4 (23%)     max: 0.469 GB/s
TrueCrypt - Twofish Mean 100MB
min: 0.708     avg: 0.8     median: 0.8 (0%)     max: 0.789 GB/s
min: 0.58     avg: 0.6     median: 0.7 (0%)     max: 0.714 GB/s
min: 0.583     avg: 0.7     median: 0.7 (0%)     max: 0.793 GB/s
TrueCrypt - AES Mean 100MB
min: 4.1     avg: 4.3     median: 4.4 (23%)     max: 4.5 GB/s
min: 2.9     avg: 3.5     median: 3.5 (18%)     max: 4 GB/s
min: 3.3     avg: 4.2     median: 4.3 (22%)     max: 4.6 GB/s
Blender 2.79 *
min: 769     avg: 845     median: 825.6 (6%)     max: 959 Seconds
min: 812.5     avg: 969     median: 927.8 (7%)     max: 1209.2 Seconds
min: 841.1     avg: 889     median: 888.9 (6%)     max: 936.7 Seconds
3DMark 06 - CPU
min: 5637     avg: 6330     median: 6316 (42%)     max: 7439 Points
min: 4775     avg: 6370     median: 6348 (42%)     max: 7575 Points
min: 4534     avg: 5951     median: 5845 (39%)     max: 7795 Points
Super Pi mod 1.5 XS 1M *
min: 9.762     avg: 10     median: 9.8 (2%)     max: 10.321 Seconds
min: 10.9     avg: 11.7     median: 11.1 (2%)     max: 15.77 Seconds
min: 9     avg: 10.5     median: 9.3 (2%)     max: 17.455 Seconds
Super Pi mod 1.5 XS 2M *
min: 22.117     avg: 22.2     median: 22.2 (1%)     max: 22.432 Seconds
min: 24.9     avg: 26.3     median: 25.2 (1%)     max: 34.28 Seconds
min: 20     avg: 23     median: 21.2 (1%)     max: 32.72 Seconds
Super Pi Mod 1.5 XS 32M *
min: 542.501     avg: 562     median: 552.1 (2%)     max: 590.085 Seconds
min: 601     avg: 631     median: 613 (3%)     max: 782.59 Seconds
min: 509.5     avg: 575     median: 536 (2%)     max: 740.35 Seconds
3DMark Vantage - P CPU no PhysX 1280x1024
min: 15198     avg: 20933     median: 21899 (31%)     max: 24736 Points
21623 Points (30%)
3DMark 11 - Performance Physics 1280x720
min: 4154     avg: 6366     median: 6279 (31%)     max: 8443 points
min: 3233     avg: 6336     median: 6276 (31%)     max: 8014 points