Courte critique des processeurs Coffee Lake i7-8700K et i5-8400

Avec les nouveaux processeurs Coffee Lake, Intel propose au grand public pour la première fois de son histoire plus de quatre cœurs physiques. Peu importe que l’on considère que ce soit une réponse aux Ryzen d’AMD, Coffee Lake combine des vitesses élevées avec plus de cœurs que par le passé, méritant ainsi une recommandation d’achat.

Silvio Werner, Klaus Hinum, 👁 Klaus Hinum (traduit par JBP), Published 12/21/2017 🇺🇸 🇩🇪 ...

Cinebench R15
CPU Single 64Bit
Intel Core i7-7740X	195 Points +17%
Intel Core i7-7700K	194 Points +16%
Intel Core i7-8700K	194 Points +16%
Intel Core i9-7900X	192.7 Points +15%
Intel Core i5-7600K	191 Points +14%
Intel Core i5-8400	167 Points
AMD Ryzen 7 1800X	164 Points -2%
AMD Ryzen 7 1700X	157 Points -6%
AMD Ryzen 5 1500X	157 Points -6%
Intel Core i7-7700HQ	149 Points -11%
AMD Ryzen 7 1700	147.6 Points -12%
AMD Ryzen 5 1600	147 Points -12%
AMD Ryzen 5 1400	134.5 (133.01^min - 136.04^max) Points -19%
CPU Multi 64Bit
Intel Core i9-7900X	2148 (2133.11^min - 2158.31^max) Points +128%
AMD Ryzen 7 1800X	1647 Points +75%
AMD Ryzen 7 1700X	1557 Points +65%
Intel Core i7-8700K	1422 Points +51%
AMD Ryzen 7 1700	1418 (1413.38^min - 1425.16^max) Points +51%
AMD Ryzen 5 1600	1125 Points +20%
Intel Core i7-7740X	988 Points +5%
Intel Core i7-7700K	984 Points +5%
Intel Core i5-8400	941 (921.89^min - 945.25^max) Points
AMD Ryzen 5 1500X	818 Points -13%
Intel Core i7-7700HQ	738 Points -22%
AMD Ryzen 5 1400	692 (676.26^min - 706.89^max) Points -26%
Intel Core i5-7600K	688 Points -27%

Performance Rating | TrueCrypt

Performance Rating - Percent
Intel Core i9-7900X	100 pt
AMD Ryzen 7 1800X	76.5 pt
AMD Ryzen 7 1700X	72.8 pt
Intel Core i7-8700K	66.4 pt
AMD Ryzen 5 1600	52.5 pt
AMD Ryzen 5 1600	48.5 pt
Intel Core i7-7740X	45.7 pt
Intel Core i7-7700K	45.4 pt
Intel Core i5-8400	40.8 pt
AMD Ryzen 5 1500X	38.2 pt
AMD Ryzen 5 1400	33 pt
Intel Core i5-7600K	30.1 pt

TrueCrypt
Serpent Mean 100MB
Intel Core i9-7900X	1.2 GB/s +140%
AMD Ryzen 7 1800X	0.945 GB/s +89%
AMD Ryzen 7 1700X	0.898 GB/s +80%
Intel Core i7-8700K	0.796 GB/s +59%
AMD Ryzen 5 1600	0.655 GB/s +31%
AMD Ryzen 5 1600	0.649 GB/s +30%
Intel Core i7-7700K	0.554 GB/s +11%
Intel Core i7-7740X	0.551 GB/s +10%
Intel Core i5-8400	0.5 GB/s
AMD Ryzen 5 1500X	0.465 GB/s -7%
AMD Ryzen 5 1400	0.41 GB/s -18%
Intel Core i5-7600K	0.367 GB/s -27%
Twofish Mean 100MB
Intel Core i9-7900X	2.1 GB/s +154%
AMD Ryzen 7 1800X	1.5 GB/s +81%
AMD Ryzen 7 1700X	1.4 GB/s +69%
Intel Core i7-8700K	1.4 GB/s +69%
AMD Ryzen 5 1600	1 GB/s +21%
AMD Ryzen 5 1600	1 GB/s +21%
Intel Core i7-7740X	0.944 GB/s +14%
Intel Core i7-7700K	0.939 GB/s +14%
Intel Core i5-8400	0.827 GB/s
AMD Ryzen 5 1500X	0.744 GB/s -10%
AMD Ryzen 5 1400	0.647 GB/s -22%
Intel Core i5-7600K	0.611 GB/s -26%
AES Mean 100MB
Intel Core i9-7900X	12.1 GB/s +142%
AMD Ryzen 7 1800X	9.6 GB/s +92%
AMD Ryzen 7 1700X	9.3 GB/s +86%
Intel Core i7-8700K	8 GB/s +60%
AMD Ryzen 5 1600	6.7 GB/s +34%
Intel Core i7-7740X	5.6 GB/s +12%
Intel Core i7-7700K	5.5 GB/s +10%
AMD Ryzen 5 1600	5.3 GB/s +6%
Intel Core i5-8400	5 GB/s
AMD Ryzen 5 1500X	4.9 GB/s -2%
AMD Ryzen 5 1400	4.1 GB/s -18%
Intel Core i5-7600K	3.7 GB/s -26%

Performance Rating | TrueCrypt

wPrime 2.10
1024m
Intel Core i5-7600K	259.5 s * -35%
AMD Ryzen 5 1400	237.3 s * -24%
AMD Ryzen 5 1500X	210.6 s * -10%
Intel Core i5-8400	191.8 s *
Intel Core i7-7700K	169.8 s * +11%
Intel Core i7-7740X	167.2 s * +13%
Intel Core i7-8700K	118.9 s * +38%
AMD Ryzen 7 1700X	109 s * +43%
AMD Ryzen 7 1800X	103 s * +46%
Intel Core i9-7900X	76 s * +60%
32m
Intel Core i5-7600K	8.3 s * -34%
AMD Ryzen 5 1400	7.8 s * -26%
AMD Ryzen 5 1500X	6.9 s * -11%
Intel Core i5-8400	6.2 s *
Intel Core i7-7700K	5.5 s * +11%
Intel Core i7-7740X	5.4 s * +13%
Intel Core i7-8700K	4.96 s * +20%
AMD Ryzen 7 1700X	4 s * +35%
AMD Ryzen 7 1800X	3.8 s * +39%
Intel Core i9-7900X	2.91 s * +53%

* ... Moindre est la valeur, meilleures sont les performances

Geekbench 4.0
64 Bit Single-Core Score
Intel Core i7-8700K	5770 Points +15%
Intel Core i7-8700K	5738 (5724^min - 5740^max) Points +15%
Intel Core i7-7740X	5619 Points +12%
Intel Core i7-7700K	5480 Points +10%
Intel Core i5-7600K	5225 Points +5%
Intel Core i5-8400	4996 Points
Intel Core i9-7900X	4987 Points 0%
AMD Ryzen 7 1800X	4499 Points -10%
AMD Ryzen 7 1700X	4333 Points -13%
Intel Core i7-7700HQ	4321 Points -14%
AMD Ryzen 7 1700	4179 Points -16%
AMD Ryzen 5 1500X	4149 Points -17%
AMD Ryzen 5 1600	4130 Points -17%
AMD Ryzen 5 1400	3885 Points -22%
64 Bit Multi-Core Score
Intel Core i9-7900X	27533 Points +41%
Intel Core i7-8700K	23230 (23142^min - 23272^max) Points +19%
Intel Core i7-8700K	23187 Points +19%
AMD Ryzen 7 1800X	22009 Points +13%
AMD Ryzen 7 1700X	21038 Points +8%
AMD Ryzen 7 1700	19784 Points +1%
Intel Core i5-8400	19500 Points
Intel Core i7-7740X	18383 Points -6%
AMD Ryzen 5 1600	17937 Points -8%
Intel Core i7-7700K	17800 Points -9%
Intel Core i5-7600K	15030 Points -23%
AMD Ryzen 5 1500X	14463 Points -26%
Intel Core i7-7700HQ	14026 Points -28%
AMD Ryzen 5 1400	12785 Points -34%

WinRAR - Result
Intel Core i7-8700K	7120 KB/s +38%
Intel Core i7-8700K	7032 KB/s +36%
Intel Core i7-7740X	6417 KB/s +24%
Intel Core i9-7900X	5918 KB/s +14%
Intel Core i7-7700K	5823 KB/s +13%
Intel Core i5-8400	5173 KB/s
AMD Ryzen 7 1800X	4120 KB/s -20%
AMD Ryzen 7 1700X	3999 KB/s -23%
AMD Ryzen 5 1500X	3910 KB/s -24%
AMD Ryzen 5 1600	3687 KB/s -29%
Intel Core i5-7600K	3570 KB/s -31%
AMD Ryzen 5 1400	3147 KB/s -39%

X264 HD Benchmark 4.0
Pass 1
Intel Core i7-7740X	233.6 (231.9^min - 233.6^max) fps +4%
Intel Core i7-8700K	233 (232^min - 234^max) fps +4%
Intel Core i7-8700K	232 (229^min - 233^max) fps +4%
Intel Core i7-7700K	230 fps +3%
Intel Core i5-8400	223.8 fps
Intel Core i5-7600K	223 fps 0%
Intel Core i9-7900X	217 fps -3%
AMD Ryzen 7 1800X	195 fps -13%
AMD Ryzen 7 1700X	186 fps -17%
AMD Ryzen 5 1600	177 fps -21%
AMD Ryzen 5 1500X	177 fps -21%
AMD Ryzen 5 1400	154 fps -31%
Pass 2
Intel Core i9-7900X	121 fps +97%
AMD Ryzen 7 1800X	95 fps +55%
AMD Ryzen 7 1700X	90.6 fps +48%
Intel Core i7-8700K	87.4 fps +42%
Intel Core i7-8700K	87.2 fps +42%
AMD Ryzen 5 1600	68.7 fps +12%
Intel Core i7-7740X	61.7 (61.6^min - 61.8^max) fps 0%
Intel Core i7-7700K	61.6 fps 0%
Intel Core i5-8400	61.4 fps
AMD Ryzen 5 1500X	49.5 fps -19%
Intel Core i5-7600K	46.2 fps -25%
AMD Ryzen 5 1400	43.4 fps -29%

PCMark 8
Home Score Accelerated v2
Intel Core i7-7740X	5347 Points
Intel Core i9-7900X	5239 Points
Intel Core i7-7700K	5042 Points
Intel Core i5-7600K	4749 Points
AMD Ryzen 7 1800X	4746 Points
Intel Core i7-8700K	4648 Points
AMD Ryzen 5 1500X	4647 Points
AMD Ryzen 7 1700X	4613 Points
AMD Ryzen 7 1700	4485 Points
AMD Ryzen 5 1600	4437 Points
AMD Ryzen 5 1400	4346 Points
Intel Core i7-7700HQ	4069 Points
Work Score Accelerated v2
Intel Core i9-7900X	5325 Points
Intel Core i7-7700HQ	5234 Points
Intel Core i7-7700K	5167 Points
Intel Core i7-7740X	4977 Points
Intel Core i7-8700K	4821 Points
AMD Ryzen 5 1500X	4557 Points
AMD Ryzen 7 1800X	4511 Points
AMD Ryzen 7 1700X	4487 Points
AMD Ryzen 5 1600	4431 Points
AMD Ryzen 7 1700	4402 Points
AMD Ryzen 5 1400	4401 Points

3DMark
1920x1080 Fire Strike Physics
Intel Core i9-7900X	22626 Points +83%
Intel Core i7-8700K	19358 Points +57%
AMD Ryzen 7 1800X	18915 Points +53%
AMD Ryzen 7 1700X	18407 Points +49%
AMD Ryzen 7 1700	16830 Points +36%
AMD Ryzen 5 1600	15818 Points +28%
Intel Core i7-7740X	14432 Points +17%
Intel Core i7-7700K	14325 Points +16%
Intel Core i5-8400	12346 Points
AMD Ryzen 5 1400	10848 Points -12%
Intel Core i7-7700HQ	10455 Points -15%
Intel Core i5-7600K	9292 Points -25%
2560x1440 Time Spy CPU
Intel Core i9-7900X	10131 Points +84%
AMD Ryzen 7 1800X	8252 Points +50%
AMD Ryzen 7 1700X	7806 Points +42%
AMD Ryzen 7 1700X	7806 Points +42%
AMD Ryzen 7 1700	7415 Points +35%
Intel Core i7-7740X	5632 Points +2%
AMD Ryzen 5 1600	5542 Points +1%
Intel Core i5-8400	5509 Points
Intel Core i7-7700K	5490 Points 0%
Intel Core i7-7700HQ	4189 Points -24%
Intel Core i5-7600K	4152 Points -25%
AMD Ryzen 5 1500X	4067 Points -26%
AMD Ryzen 5 1400	3700 Points -33%

3DMark 11 - 1280x720 Performance Physics
Intel Core i9-7900X	15260 Points
AMD Ryzen 7 1800X	14150 Points
AMD Ryzen 7 1700	13124 Points
Intel Core i7-7740X	12322 Points
Intel Core i7-7700K	12026 Points
AMD Ryzen 5 1600	11164 Points
AMD Ryzen 5 1500X	9566 Points
Intel Core i7-7700HQ	9462 Points
AMD Ryzen 5 1400	8177 Points

3DMark 06 - CPU - CPU Score
Intel Core i9-7900X	12678 Points
Intel Core i7-8700K	11599 Points
Intel Core i7-7740X	10229 Points
Intel Core i7-7700K	10156 Points
AMD Ryzen 7 1700	8940 Points
Intel Core i5-7600K	8532 Points
AMD Ryzen 5 1600	8222 Points
Intel Core i7-7700HQ	7761 Points
AMD Ryzen 5 1500X	7403 Points
AMD Ryzen 5 1400	6599 Points

Farming Simulator 17 | The Witcher 3 | For Honor

Farming Simulator 17 - 3840x2160 High Preset AA:2xMS AF:2x
Intel Core i7-7740X	213 (195^min - 262^max) fps +11%
Intel Core i5-7600K	205 (191^min - 241^max) fps +7%
Intel Core i7-7700K	204 (188^min - 248^max) fps +6%
Intel Core i9-7900X	201 (186^min - 242^max) fps +5%
AMD Ryzen 5 1500X	195 (188^min - 203^max) fps +2%
Intel Core i7-8700K	194 (179^min - 234^max) fps +1%
Intel Core i5-8400	192 (178^min - 231^max) fps
Intel Core i7-5960X	191 (175^min - 228^max) fps -1%
AMD Ryzen 7 1800X	191 (180^min - 203^max) fps -1%
AMD Ryzen 5 1600	188 (177^min - 194^max) fps -2%
AMD Ryzen 7 1700	181 (172^min - 189^max) fps -6%
AMD Ryzen 5 1400	170 (164^min - 177^max) fps -11%

The Witcher 3
1920x1080 Ultra Graphics & Postprocessing (HBAO+)
Intel Core i7-7740X	102 (87^min - 116^max) fps +1%
Intel Core i7-8700K	102 (86^min - 115^max) fps +1%
Intel Core i5-8400	101 (87^min - 113^max) fps
Intel Core i7-7700K	100 (86^min - 113^max) fps -1%
AMD Ryzen 7 1700	98 fps -3%
AMD Ryzen 7 1800X	97 (83^min - 110^max) fps -4%
Intel Core i9-7900X	97 (80^min - 112^max) fps -4%
AMD Ryzen 5 1500X	96.4 (84^min - 110^max) fps -5%
AMD Ryzen 5 1400	96.3 (83^min - 110^max) fps -5%
AMD Ryzen 5 1600	95 (80^min - 108^max) fps -6%
1024x768 Low Graphics & Postprocessing
Intel Core i9-7900X	349 (260^min - 392^max) fps +15%
Intel Core i7-8700K	338 (307^min - 390^max) fps +12%
Intel Core i7-7740X	327 (258^min - 363^max) fps +8%
Intel Core i7-7700K	313 (284^min - 344^max) fps +3%
Intel Core i5-8400	303 (277^min - 338^max) fps
AMD Ryzen 7 1800X	297 (267^min - 336^max) fps -2%
AMD Ryzen 7 1700	274 (243^min - 310^max) fps -10%
AMD Ryzen 5 1600	254 (237^min - 292^max) fps -16%
AMD Ryzen 5 1500X	250 (226^min - 287^max) fps -17%
AMD Ryzen 5 1400	225 (202^min - 256^max) fps -26%

For Honor
3840x2160 High Preset AA:T AF:8x
Intel Core i7-7700K	79 (46^min - 117^max) fps +2%
Intel Core i7-7740X	79 (63^min - 135^max) fps +2%
AMD Ryzen 7 1700	78 (63^min - 91^max) fps +1%
Intel Core i9-7900X	78 (62^min - 105^max) fps +1%
Intel Core i5-7600K	77.9 (23^min - 105^max) fps 0%
AMD Ryzen 5 1500X	77.8 (63^min - 89^max) fps 0%
AMD Ryzen 5 1400	77.6 (63^min - 91^max) fps 0%
Intel Core i5-8400	77.6 (60^min - 100^max) fps
Intel Core i7-8700K	77.3 (63^min - 97^max) fps 0%
AMD Ryzen 5 1600	77.1 (62^min - 89^max) fps -1%
AMD Ryzen 7 1800X	77 (62^min - 91^max) fps -1%
Intel Core i7-5960X	76 (30^min - 107^max) fps -2%
1280x720 Low Preset
Intel Core i7-7740X	347 (240^min - 500^max) fps +21%
Intel Core i7-7700K	333 (184^min - 467^max) fps +16%
Intel Core i7-8700K	328 (184^min - 429^max) fps +15%
Intel Core i5-8400	286 (141^min - 414^max) fps
AMD Ryzen 5 1500X	271 (193^min - 400^max) fps -5%
Intel Core i5-7600K	263 (17^min - 383^max) fps -8%
AMD Ryzen 5 1600	250 (187^min - 317^max) fps -13%
AMD Ryzen 5 1400	233 (145^min - 317^max) fps -19%
AMD Ryzen 7 1800X	230 (187^min - 300^max) fps -20%
Intel Core i7-5960X	224 (168^min - 283^max) fps -22%
AMD Ryzen 7 1700	208 (159^min - 273^max) fps -27%
Intel Core i9-7900X	155 (129^min - 180^max) fps -46%

Farming Simulator 17 | The Witcher 3 | For Honor

Nous ne saurons jamais trop si nous devons ou non remercier AMD pour avoir proposé des CPU grand public à six cœurs. Mais il est clair que le Core i7-8700K atteint presque le même niveau multi-cœur que les Ryzen, et des performances mono-cœur excellentes. De ce fait, il est très performant dans les jeux vidéo, ce qui lui permet d’être extrêmement polyvalent, pour les professionnels comme pour les consommateurs classiques. Il en va de même pour le i5-8400 : ses performances en jeu sont exceptionnelles par rapport aux Ryzen d’AMD, ce qui lui permet d’être fortement recommandé pour les joueurs.

L’intégralité de cette critique est disponible en anglais en suivant ce lien.

Editor of the original article: Finn D Boerne - Translator - 450 articles published on Notebookcheck since 2017

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> Revues et rapports de ordinateurs portatifs et smartphones, ordiphones > Critiques > Courte critique des processeurs Coffee Lake i7-8700K et i5-8400

Silvio Werner, Klaus Hinum, 2017-12-21 (Update: 2024-11- 4)