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Intel Core i5-8257U vs Intel Core i7-8559U

Intel Core i5-8257U

► remove from comparison

The Intel Core i5-8257U is a quad-core SoC for notebooks based on the Coffee Lake architecture that was announced in the new entry level MacBook Pro 13 in mid 2019. Compared to its predecessor, the CPU is now a quad-core with Hyperthreading support for the execution of up to 8 threads simultaneously. The base frequency is only 1.4 GHz, but the Turbo goes all the way up to 3.9 GHz. It is also equipped with an Intel Iris Plus Graphics 645 GPU with 128 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 faster Core i7-8557U model with eDRAM and 15 Watts, the i5-8257U only features 6 MB smart cache and the slowest clock of the Iris Plus GPU.

Architecture

Intel basically uses the same micro architecture compared to Kaby Lake, 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

Thanks to the relative high Turbo Boost clock, the single thread performance should be very good, but still behind the faster i7 model. The short burst all core performance is clearly better compared to the old dual core predecessors thanks to the additional cores. In sustained workloads, the performance is usually limited by the TDP and cooling. In these workloads the difference to the Core i7 should be also smaller.

Graphics

The integrated Intel Iris Plus 645 Graphics is the GT3e model of the Coffee Lake GPU (Intel Gen. 9.5). It has 48 Execution Units running at 300-1050 MHz and the performance is comparable to a GeForce 930M or 940MX thanks to fast eDRAM cache. However, there aren't any significant improvements compared to the old Iris Plus 650, 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 15 Watts and therefore suited for thin and light laptops.

Intel Core i7-8559U

► remove from comparison

The Intel Core i7-8559U is a quad-core SoC for notebooks based on the Coffee Lake architecture and was announced in April 2018. Compared to its predecessor Core i7-7567U, the CPU is now a quad-core with Hyperthreading support for the execution of up to 8 threads simultaneously. The base frequency is 2.7 GHz, but the Turbo goes all the way up to 4.5 GHz. It is also equipped with an Intel Iris Plus Graphics 655 GPU with 128 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 faster Core i5 models with eDRAM and 28 Watts, the i5-8559U features 8 MB smart cache and the fastest clock of the Iris Plus GPU.

Architecture

Intel basically uses the same micro architecture compared to Kaby Lake, 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

Clocked at up to 4.5 GHz, the Core i7-8559U is currently the fastest quad core ULV from Intel. Whether these speeds can be maintained in practice depends on the cooling capabilities of the laptop, but the performance should be above the Core i7-8650U due to the increased TDPConsidering the clocks of the Core i7-8559U, its performance should be between the 15W models Core i5-8350U and Core i7-8550U. The i5-8259U should still be faster than the i7-8550U in practice thanks to the increased TDP, especially during sustained workloads.

Graphics

The integrated Intel Iris Plus 655 Graphics is the GT3e model of the Coffee Lake GPU (Intel Gen. 9.5). It has 48 Execution Units running at 300-1200 MHz  and the performance is comparable to a GeForce 930M or 940MX thanks to fast eDRAM cache. However, there aren't any significant improvements compared to the old Iris Plus 650, 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 quad-core processors, but allows a better utilization of CPU and GPU Turbo.

Intel Core i5-8257UIntel Core i7-8559U
Intel Coffee LakeIntel Coffee Lake
Coffee Lake-UCoffee Lake-U
Series: Coffee Lake Coffee Lake-U
Intel Core i7-8559U2.7 - 4.5 GHz4 / 88 MB
Intel Core i7-8557U compare1.7 - 4.5 GHz4 / 88 MB
Intel Core i5-8269U compare2.6 - 4.2 GHz4 / 86 MB
Intel Core i5-8279U compare2.4 - 4.1 GHz4 / 86 MB
Intel Core i5-8259U compare2.3 - 3.8 GHz4 / 86 MB
» Intel Core i5-8257U1.4 - 3.9 GHz4 / 86 MB
Intel Core i3-8109U compare3 - 3.6 GHz2 / 44 MB
» Intel Core i7-8559U2.7 - 4.5 GHz4 / 88 MB
Intel Core i7-8557U compare1.7 - 4.5 GHz4 / 88 MB
Intel Core i5-8269U compare2.6 - 4.2 GHz4 / 86 MB
Intel Core i5-8279U compare2.4 - 4.1 GHz4 / 86 MB
Intel Core i5-8259U compare2.3 - 3.8 GHz4 / 86 MB
Intel Core i5-8257U1.4 - 3.9 GHz4 / 86 MB
Intel Core i3-8109U compare3 - 3.6 GHz2 / 44 MB
1400 - 3900 MHz2700 - 4500 MHz
256 KB256 KB
1 MB1 MB
6 MB8 MB
4 / 84 / 8
15 28
14 14
100 °C100 °C
FCBGA1528FCBGA1528
Dual-Channel DDR4 Memory Controller, HyperThreading, AVX, AVX2, Quick Sync, Virtualization, AES-NI, Intel SSE4.1, Intel SSE 4.2Dual-Channel DDR4 Memory Controller, HyperThreading, AVX, AVX2, Quick Sync, Virtualization, AES-NI, Intel SSE4.1, Intel SSE 4.2
iGPUIntel Iris Plus Graphics 645 (300 - 1050 MHz)Intel Iris Plus Graphics 655 (300 - 1200 MHz)
Architecturex86x86
Intel Coffee Lake i5-8257UIntel Coffee Lake i7-8559U

Benchmarks

Performance Rating - CB R15 + R20 + 7-Zip + X265 + Blender + 3DM11 CPU - i5-8257U
38.1 pt (43%)
Performance Rating - CB R15 + R20 + 7-Zip + X265 + Blender + 3DM11 CPU - i7-8559U
44.4 pt (51%)
Cinebench R23 - Cinebench R23 CPU (Multi Core)
4033 Points (7%)
Cinebench R23 - Cinebench R23 CPU (Single Core)
1003 Points (59%)
Cinebench R20 - Cinebench R20 CPU (Single Core)
min: 388     avg: 393     median: 393 (61%)     max: 398 Points
466 Points (72%)
Cinebench R20 - Cinebench R20 CPU (Multi Core)
min: 1494     avg: 1520     median: 1519.5 (6%)     max: 1545 Points
1691 Points (7%)
Cinebench R15 - Cinebench R15 CPU Multi 64 Bit
min: 629     avg: 633     median: 633.5 (7%)     max: 637.97 Points
03570105140175210245280315350385420455490525560595630629.43621.58626.52623.43623.64624.54625.35624.72622.35623.26622.19623.5625.34621.73623.71624.28622.65622.69622.4624.54622.28622.38623.54621.74624.19625.72624.43624.54622.94624.74621.11622.14622.51623.74623.98622.54622.49623.13625.17625.97624.45628.01626.27625.53625.95627.74625.71625.17623.86625.35637.93611.7633.65637.3634.57636.99636.46637.49637.97637.56635.46636.34632.51635.51633636.45633.95634.38635.53634.08633.04633.33635.37634.16634.13Tooltip
798 Points (8%)
04080120160200240280320360400440480520560600640680720760798.44674.05680.65675.08674.37678.13671.37678.48676.33675.98677.07674.21677.77678.66677.23674.55676.16678.31677.22677.05677.07676.16678.85675.45677.05Tooltip
Cinebench R15 - Cinebench R15 CPU Single 64 Bit
min: 156     avg: 158     median: 157.7 (58%)     max: 159.33 Points
188 Points (69%)
Cinebench R11.5 - Cinebench R11.5 CPU Multi 64 Bit
7.3 Points (13%)
Cinebench R11.5 - Cinebench R11.5 CPU Single 64 Bit
2.2 Points (69%)
Cinebench R10 - Cinebench R10 Rend. Single (32bit)
7249 (65%)
Cinebench R10 - Cinebench R10 Rend. Multi (32bit)
23215 (37%)
wPrime 2.10 - wPrime 2.0 1024m *
235 s (3%)
wPrime 2.10 - wPrime 2.0 32m *
6.5 s (1%)
WinRAR - WinRAR 4.0
6656 (43%)
7-Zip 18.03 - 7-Zip 18.03 Multli Thread 4 runs
19620 MIPS (14%)
min: 22033     avg: 26302     median: 26301.5 (19%)     max: 30570 MIPS
7-Zip 18.03 - 7-Zip 18.03 Single Thread 4 runs
4083 MIPS (59%)
min: 4826     avg: 5499     median: 5498.5 (79%)     max: 6171 MIPS
X264 HD Benchmark 4.0 - x264 Pass 2
45.6 fps (21%)
X264 HD Benchmark 4.0 - x264 Pass 1
191 fps (56%)
HWBOT x265 Benchmark v2.2 - HWBOT x265 4k Preset
5.3 fps (11%)
01234567891011120.733.024.616.367.297.688.549.329.741010.410.71111.211.411.711.611.811.611.911.91212.111.71110.910.910.510.110.19.99.819.669.459.419.249.279.048.858.898.728.68.628.568.448.538.458.558.568.468.48.398.198.18.158.098.017.937.967.867.827.757.757.717.677.587.597.57.467.357.357.37.267.277.227.187.167.137.057.097.037.016.956.986.946.926.856.886.866.786.746.756.726.636.666.626.576.536.536.526.466.496.476.456.436.46.426.396.376.316.296.256.256.226.226.176.196.166.116.116.076.056.036.046.035.995.975.985.965.945.915.935.895.885.875.855.855.855.85.825.85.785.765.765.745.725.725.715.685.675.655.655.645.615.635.615.595.595.575.585.545.565.555.535.545.525.535.515.535.525.515.55.525.515.55.515.495.495.485.55.485.475.485.475.455.475.465.435.455.445.465.455.475.465.465.485.475.485.515.495.525.535.545.585.595.625.635.665.665.655.645.645.645.635.635.645.645.625.635.635.625.625.625.625.65.625.65.625.615.65.615.65.65.65.585.555.565.565.545.565.545.555.555.545.545.545.525.535.525.515.525.535.525.55.525.515.515.495.495.55.495.485.55.495.485.485.485.485.475.485.485.475.485.475.485.465.475.465.465.465.475.465.455.465.445.455.435.455.435.435.445.435.425.425.435.425.415.425.415.45.415.45.415.395.415.45.395.395.395.385.395.385.395.395.385.385.395.385.395.385.395.375.385.385.385.375.375.375.355.365.355.365.355.365.355.345.345.325.335.325.315.35.35.295.295.295.275.285.265.265.265.245.245.245.235.245.235.225.215.215.25.195.195.185.155.155.155.145.155.145.125.125.115.085.095.095.095.075.085.075.075.085.085.085.085.15.125.125.145.165.175.195.195.215.225.225.245.265.275.285.285.295.295.295.285.285.285.285.295.295.285.295.285.295.295.295.295.285.295.285.285.295.285.285.285.295.285.285.275.275.285.275.275.275.265.275.265.275.265.265.255.255.265.265.255.255.255.245.245.245.255.245.245.245.245.245.235.245.245.235.235.235.225.225.225.225.225.215.25.25.25.195.175.185.175.185.175.175.165.165.165.145.155.145.145.145.135.145.135.135.135.125.125.125.125.125.125.125.125.115.115.115.15.115.15.15.095.095.095.095.085.085.085.075.085.085.075.075.075.085.075.085.075.075.065.065.065.055.065.065.065.055.055.045.045.045.045.035.035.025.015.015.015.0155.0154.994.994.994.994.994.984.984.984.984.974.964.974.964.974.954.954.954.954.954.954.954.954.954.954.954.944.934.944.944.934.944.934.934.934.934.924.924.924.914.914.94.94.94.894.894.894.884.894.884.874.874.874.874.874.874.864.854.854.854.854.854.854.844.854.844.844.844.844.834.834.834.834.824.824.814.814.814.814.84.84.84.84.794.794.794.794.794.794.784.784.784.784.784.774.784.784.784.784.784.84.84.814.824.824.844.844.854.864.874.884.884.894.94.94.914.914.924.934.944.954.954.964.974.974.984.984.9955.015.015.025.035.035.045.055.055.065.065.075.075.075.085.085.095.095.15.15.15.115.115.135.135.145.145.145.155.155.165.175.175.185.185.185.195.25.215.215.215.225.235.235.245.245.255.27Tooltip
min: 5.523     avg: 5.7     median: 5.7 (12%)     max: 5.9 fps
0123456789101112130.884.726.868.319.219.9910.811.111.511.81212.412.412.712.913131313.113.212.712.61211.911.611.611.411.411.111.110.810.910.610.610.410.410.310.310.210.210.110.210.110.310.210.19.99.819.859.79.749.619.569.589.549.439.419.339.329.239.229.018.989.018.948.968.878.898.848.778.88.728.748.668.678.628.558.588.548.468.418.428.398.298.328.298.228.188.28.158.168.148.078.048.058.017.957.977.97.877.867.847.87.817.797.737.737.687.697.677.587.67.577.57.57.447.427.377.337.337.277.277.257.217.187.197.187.137.117.077.077.0477.016.986.946.926.886.856.866.856.826.86.786.786.776.716.736.716.696.716.676.686.676.646.676.656.646.636.636.626.646.616.646.616.66.596.66.596.556.576.556.546.536.546.496.526.56.526.516.516.536.516.526.536.526.546.536.556.576.576.66.636.656.696.76.726.726.696.716.76.76.76.686.686.676.686.676.686.676.656.666.646.656.646.626.626.626.636.616.636.626.66.556.566.556.566.546.536.536.546.516.526.516.496.496.496.56.486.496.486.476.476.486.466.476.466.446.446.456.446.436.446.436.446.426.436.436.416.426.416.46.416.46.416.396.416.396.386.396.376.366.356.366.356.346.346.356.346.326.336.326.316.36.316.316.296.36.36.286.296.286.276.286.276.286.276.266.276.266.256.266.266.256.266.256.256.246.256.246.216.216.226.216.216.26.216.216.26.26.196.186.176.166.156.146.136.136.136.16.116.16.096.076.066.066.066.046.056.046.026.0265.985.995.985.945.935.945.925.925.925.95.95.885.855.855.855.845.835.845.835.835.835.835.835.835.835.845.845.875.895.915.935.955.965.986.016.026.046.066.076.086.076.056.066.066.076.066.066.076.066.066.056.066.066.066.066.066.056.056.056.056.056.046.056.046.046.046.046.036.046.036.046.036.036.026.036.016.026.026.016.016.01665.9965.995.995.995.995.985.995.985.995.985.985.985.975.975.975.975.965.975.965.955.955.955.945.935.925.925.95.95.895.95.95.895.885.885.885.865.865.855.855.855.845.855.845.845.835.835.835.825.835.835.825.815.825.815.815.85.85.85.85.795.795.795.795.775.775.775.775.775.765.765.765.775.775.765.775.765.755.765.755.755.755.745.745.745.745.735.745.735.725.725.75.75.75.695.685.685.675.685.675.675.665.675.665.665.655.645.645.645.645.625.625.625.635.615.615.615.615.65.65.65.65.65.65.65.595.585.585.585.585.585.585.575.585.575.565.575.565.555.555.545.545.545.545.525.525.525.525.55.55.55.55.495.495.495.485.475.485.475.475.475.475.475.465.465.465.465.465.455.455.455.455.445.445.445.445.435.425.425.425.415.425.415.415.415.45.415.45.45.45.395.395.385.385.385.385.395.385.395.395.415.425.435.445.455.465.465.475.485.495.55.515.525.535.545.555.565.565.575.585.595.65.615.625.635.645.645.655.665.675.685.695.695.75.715.715.725.735.735.745.735.745.755.765.765.775.785.795.85.85.815.815.825.835.835.845.855.865.865.875.885.895.895.95.915.925.93Tooltip
TrueCrypt - TrueCrypt Serpent
0.5 GB/s (16%)
TrueCrypt - TrueCrypt Twofish
0.8 GB/s (17%)
TrueCrypt - TrueCrypt AES
5 GB/s (19%)
Blender 2.79 - Blender 2.79 BMW27 CPU *
714 Seconds (5%)
min: 650     avg: 666     median: 666 (5%)     max: 682 Seconds
R Benchmark 2.5 - R Benchmark 2.5 *
0.6 sec (14%)
3DMark 06 - CPU - 3DMark 06 - CPU
8313 Points (46%)
Super Pi mod 1.5 XS 1M - Super Pi mod 1.5 XS 1M *
8.3 s (2%)
Super Pi mod 1.5 XS 2M - Super Pi mod 1.5 XS 2M *
18.7 s (1%)
Super Pi Mod 1.5 XS 32M - Super Pi mod 1.5 XS 32M *
464 s (2%)
3DMark Vantage - 3DM Vant. Perf. CPU no Physx
24670 Points (29%)
3DMark 11 - 3DM11 Performance Physics
7866 Points (29%)
9162 Points (33%)
3DMark - 3DMark Ice Storm Physics
52765 Points (34%)
3DMark - 3DMark Cloud Gate Physics
7377 Points (19%)
3DMark - 3DMark Fire Strike Standard Physics
8936 Points (23%)
10418 Points (26%)
3DMark - 3DMark Time Spy CPU
2740 Points (19%)
3625 Points (25%)
Geekbench 2 - 32 Bit - Geekbench Stream
9111 Points (73%)
Geekbench 2 - 32 Bit - Geekbench Memory
10023 Points (91%)
Geekbench 2 - 32 Bit - Geekbench Floating Point
16013 Points (31%)
Geekbench 2 - 32 Bit - Geekbench Integer
15397 Points (31%)
Geekbench 2 - 32 Bit - Geekbench Total Score
13909 Points (36%)
Geekbench 3 - Geekbench 3 64 Bit Multi-Core
16848 (26%)
Geekbench 3 - Geekbench 3 64 Bit Single-Core
4494 (91%)
Geekbench 4.1 - 4.4 - Geekbench 4.1 - 4.4 64 Bit Single-Core
4608 (58%)
min: 5372     avg: 5384     median: 5383.5 (67%)     max: 5395
Geekbench 4.1 - 4.4 - Geekbench 4.1 - 4.4 64 Bit Multi-Core
16580 (21%)
min: 17702     avg: 18095     median: 18095 (22%)     max: 18488
Geekbench 5.0 - Geekbench 5.0 64 Bit Single-Core
989 (53%)
1150 (62%)
Geekbench 5.0 - Geekbench 5.0 64 Bit Multi-Core
4181 (13%)
4440 (14%)
Geekbench 5.3 - Geekbench 5.1 - 5.4 64 Bit Single-Core
948 (50%)
723 (38%)
Geekbench 5.3 - Geekbench 5.1 - 5.4 64 Bit Multi-Core
3858 (23%)
3660 (22%)
Mozilla Kraken 1.1 - Kraken 1.1 Total Score *
min: 901.4     avg: 914     median: 913.8 (2%)     max: 926.1 ms
Octane V2 - Octane V2 Total Score
min: 38704     avg: 39388     median: 39387.5 (57%)     max: 40071 Points
WebXPRT 3 - WebXPRT 3 Score
210 Points (67%)
Power Consumption - Cinebench R15 Multi Power Consumption - external Monitor *
74.2 Watt (20%)

Average Benchmarks Intel Core i5-8257U → 100% n=17

Average Benchmarks Intel Core i7-8559U → 114% n=17

- 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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v1.16
log 26. 08:40:11

#0 checking url part for id 11433 +0s ... 0s

#1 checking url part for id 10072 +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 Sat, 25 Sep 2021 13:09:19 +0200 +0s ... 0s

#4 composed specs +0.004s ... 0.004s

#5 did output specs +0s ... 0.004s

#6 getting avg benchmarks for device 11433 +0.003s ... 0.007s

#7 got single benchmarks 11433 +0.007s ... 0.014s

#8 getting avg benchmarks for device 10072 +0.004s ... 0.018s

#9 got single benchmarks 10072 +0.008s ... 0.026s

#10 got avg benchmarks for devices +0s ... 0.026s

#11 min, max, avg, median took s +0.057s ... 0.083s

#12 return log +0.004s ... 0.087s

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Redaktion, 2017-09- 8 (Update: 2017-09-11)