Procesor
AMD
AMD A-Series
AMD E-Series
AMD Ryzen 3 2200U 2,5GHz
AMD Ryzen 3 2300U 2,0GHz
AMD Ryzen 3 3200U 2,6GHz
AMD Ryzen 3 3250U 2,6GHz
AMD Ryzen 3 3350U 2,1GHz
AMD Ryzen 3 5300U 2,6GHz
AMD Ryzen 3 5400U 2,6GHz
AMD Ryzen 3 5425U 2,7GHz
AMD Ryzen 3 7320U 2,4GHz
AMD Ryzen 3 7330U 2,3GHz
AMD Ryzen 3 7335U 3,0GHz
AMD Ryzen 5 3450U 2,1GHz
AMD Ryzen 5 3500U 2,1GHz
AMD Ryzen 5 3550H 2,1GHz
AMD Ryzen 5 3580U 2,1GHz
AMD Ryzen 5 4500U 2,3GHz
AMD Ryzen 5 4600H 3,0GHz
AMD Ryzen 5 4680U 2,2GHz
AMD Ryzen 5 5500U 2,1GHz
AMD Ryzen 5 5600H 3,3GHz
AMD Ryzen 5 5600U 2,3GHz
AMD Ryzen 5 5625U 2,3GHz
AMD Ryzen 5 6600H 3,3GHz
AMD Ryzen 5 6600U 2,9GHz
AMD Ryzen 5 7520C 2,8GHz
AMD Ryzen 5 7520U 2,8GHz
AMD Ryzen 5 7530U 2,0GHz
AMD Ryzen 5 7535HS 3,3GHz
AMD Ryzen 5 7535U 2,9GHz
AMD Ryzen 5 7540U 3,2GHz
AMD Ryzen 5 7640HS 4,3GHz
AMD Ryzen 5 7645HX 4,0GHz
AMD Ryzen 5 PRO 4650U 2,1GHz
AMD Ryzen 5 PRO 5650U 2,3GHz
AMD Ryzen 5 PRO 6650U 2,9GHz
AMD Ryzen 5 PRO 7540U 3,2GHz
AMD Ryzen 7 3700U 2,2GHz
AMD Ryzen 7 4700U 2,0GHz
AMD Ryzen 7 4800H 2,9GHz
AMD Ryzen 7 4980U 2,0GHz
AMD Ryzen 7 5700U 1,8GHz
AMD Ryzen 7 5800H 3,2GHz
AMD Ryzen 7 5800U 1,9GHz
AMD Ryzen 7 5825U 2,0GHz
AMD Ryzen 7 6800H 3,3GHz
AMD Ryzen 7 6800HS 3,2GHz
AMD Ryzen 7 7435HS
AMD Ryzen 7 7730U 2,0GHz
AMD Ryzen 7 7735HS 3,2GHz
AMD Ryzen 7 7735U 2,7GHz
AMD Ryzen 7 7736U 2,7GHz
AMD Ryzen 7 7745HX 3,6GHz
AMD Ryzen 7 7840HS 3,8GHz
AMD Ryzen 7 7840U 3,3GHz
AMD Ryzen 7 8745HX
AMD Ryzen 7 8845HS
AMD Ryzen 7 Pro 4750U 1,7GHz
AMD Ryzen 7 PRO 5875U 2,0GHz
AMD Ryzen 7 PRO 6850U 2,7GHz
AMD Ryzen 7 PRO 7840HS 3,8GHz
AMD Ryzen 7 PRO 7840U 3,3GHz
AMD Ryzen 9 5900HX 3,3GHz
AMD Ryzen 9 6900HS 3,3GHz
AMD Ryzen 9 6900HX 3,3GHz
AMD Ryzen 9 7845HX
AMD Ryzen 9 7940HS 4,0GHz
AMD Ryzen 9 7945HX
AMD Ryzen 9 7945HX 2,5GHz
AMD Ryzen 9 8940HX
AMD Ryzen 9 9955
AMD Ryzen 9 PRO 7940HS 4,0GHz
AMD Ryzen AI 5 340
AMD Ryzen AI 7 350
AMD Ryzen AI 7 Pro
AMD Ryzen AI 9 365
AMD Ryzen AI 9 HX 370
AMD Ryzen Al 7 350
Apple M1
Apple M2
Apple M4
Apple M5
Intel
Intel Core i3-1005G1 1,2GHz
Intel Core i3-10110U 2,1GHz
Intel Core i3-1115G4 3GHz
Intel Core i3-1125G4 2,0GHz
Intel Core i3-1215U 0,9GHz
Intel Core i3-1220P 1,1GHz
Intel Core i3-1305U 1,2GHz
Intel Core i3-1315U 0,9GHz
Intel Core i3-4005U 1,7GHz
Intel Core i3-4030U 1,9GHz
Intel Core i3-5005U 2,0GHz
Intel Core i3-6006U 2,0GHz
Intel Core i3-6100U 2,3GHz
Intel Core i3-7020U 2,3GHz
Intel Core i5-10210U 1,6GHz
Intel Core i5-10300H 2,5GHz
Intel Core i5-1030NG7 1,1GHz
Intel Core i5-10310U 1,7GHz
Intel Core i5-1035G1 1,0GHz
Intel Core i5-1035G4 1,1GHz
Intel Core i5-10500H 2,5GHz
Intel Core i5-11260H 2,6GHz
Intel Core i5-11300H 3,1GHz
Intel Core i5-1130G7 1,80GHz
Intel Core i5-11320H 3,2GHz
Intel Core i5-1135G7 2,40GHz
Intel Core i5-11400H 2,7GHz
Intel Core i5-1145G7 1,6GHz
Intel Core i5-11500H 2,9GHz
Intel Core i5-1155G7 2,5GHz
Intel Core i5-1235U 0,9GHz
Intel Core i5-1240P 1,2GHz
Intel Core i5-12450H 1,5GHz
Intel Core i5-12450HX 1,8GHz
Intel Core i5-1245U 1,2GHz
Intel Core i5-12500H 1,8GHz
Intel Core i5-12600HX 1,8GHz
Intel Core i5-1334U 0,9GHz
Intel Core i5-1335U 0,9GHz
Intel Core i5-1340P 1,4GHz
Intel Core i5-13420H 1,5GHz
Intel Core i5-13450HX 1,8GHz
Intel Core i5-1345U 1,2GHz
Intel Core i5-13500H 1,9GHz
Intel Core i5-13500HX 1,8GHz
Intel Core i5-13505H 1,9GHz
Intel Core i5-1350P 1,4GHz
Intel Core i5-13600HX 1,9GHz
Intel Core i5-2450M 2,5GHz
Intel Core i5-4200U 1,6GHz
Intel Core i5-4210H 2,9GHz
Intel Core i5-4210M 2,6GHz
Intel Core i5-4210U 1,7GHz
Intel Core i5-5200U 2,2GHz
Intel Core i5-520M 2,4GHz
Intel Core i5-540 2,5GHz
Intel Core i5-6300HQ 2,3GHz
Intel Core i5-8250U 1,6GHz
Intel Core i5-8265U 1,6GHz
Intel Core i5-8279U 2,4GHz
Intel Core i5-8350U 1,7GHz
Intel Core i5-8365U 1,6GHz
Intel Core i5-9300H 2,4GHz
Intel Core i7-10510U 1,8GHz
Intel Core i7-10610U 1,8GHz
Intel Core i7-1065G7 1,3GHz
Intel Core i7-10750H 2,6GHz
Intel Core i7-10850H 2,7GHz
Intel Core i7-10870H 2,2GHz
Intel Core i7-10875H 2,3GHz
Intel Core i7-11370H 3,3GHz
Intel Core i7-11375H 3,3GHz
Intel Core i7-11390H 3,4GHz
Intel Core i7-1165G7 2,8GHz
Intel Core i7-11800H 2,3GHz
Intel Core i7-1185G7 3,0GHz
Intel Core i7-1195G7 2,9GHz
Intel Core i7-1250U 0,8GHz
Intel Core i7-1255U 1,2GHz
Intel Core i7-1260P 1,5GHz
Intel Core i7-1260U 0,8GHz
Intel Core i7-12650H 1,7GHz
Intel Core i7-1265U 1,3GHz
Intel Core i7-12700H 1,7GHz
Intel Core i7-1270P 1,6GHz
Intel Core i7-12800H 1,8GHz
Intel Core i7-1280P 1,3GHz
Intel Core i7-1355U 1,2GHz
Intel Core i7-1360P 1,6GHz
Intel Core i7-13620H 1,8GHz
Intel Core i7-13650HX 1,9GHz
Intel Core i7-1365U 1,3GHz
Intel Core i7-13700H 1,8GHz
Intel Core i7-13700HX 1,5GHz
Intel Core i7-1370P 1,4GHz
Intel Core i7-13800H 1,8GHz
Intel Core i7-13850HX 1,5GHz
Intel Core i7-4710HQ 2,5GHz
Intel Core i7-4720HQ 2,6GHz
Intel Core i7-5500U 2,4GHz
Intel Core i7-6700HQ 2,6GHz
Intel Core i7-7500U 3,5GHz
Intel Core i7-7700HQ 2,8GHz
Intel Core i7-8550U 1,8GHz
Intel Core i7-8565U 1,8GHz
Intel Core i7-8665U 1,9GHz
Intel Core i7-8750H 2,2GHz
Intel Core i7-9750H 2,6GHz
Intel Core i9-10980HK 2,4GHz
Intel Core i9-11900H 2,5GHz
Intel Core i9-11950H 2,6GHz
Intel Core i9-12900H 1,8GHz
Intel Core i9-12900HX 1,7GHz
Intel Core i9-12950HX 1,7GHz
Intel Core i9-13900H 1,9GHz
Intel Core i9-13900HK 1,9GHz
Intel Core i9-13900HX 1,6GHz
Intel Core i9-13950HX 1,6GHz
Intel Core i9-13980HX 1,6GHz
Intel Core i9-9880H 2,3GHz
Intel Core Ultra 5 125H
Intel Core Ultra 5 125U
Intel Core Ultra 5 135U
Intel Core Ultra 5 225H
Intel Core Ultra 5 226V
Intel Core Ultra 5 228V
Intel Core Ultra 5 235U
Intel Core Ultra 7 155H
Intel Core Ultra 7 155U
Intel Core Ultra 7 165H
Intel Core Ultra 7 165U
Intel Core Ultra 7 255
Intel Core Ultra 7 255H
Intel Core Ultra 7 256
Intel Core Ultra 7 258V
Intel Core Ultra 7 265
Intel Core Ultra 7 266
Intel Core Ultra 7 268
Intel Core Ultra 7 268
Intel Core Ultra 7 268
Intel Core Ultra 9 185
Intel Core Ultra 9 275
Intel Core Ultra 9 285
Intel Core Ultra 9 288
Intel i7 14650HX
Intel Pentium 2020M 2,4GHz
Intel Xeon W-11855M 3,2GHz
Turion
Karta graficzna
AMD
AMD Radeon 520
AMD Radeon 610M
AMD Radeon 625
AMD Radeon 660M
AMD Radeon 680M
AMD Radeon 740M
AMD Radeon 760M
AMD Radeon 780M
AMD Radeon R4
AMD Radeon R5 M330
AMD Radeon R7 M340
AMD Radeon R7 M445
AMD Radeon RX 550X
AMD Radeon RX 6500M
AMD Radeon RX 6600M
AMD Radeon RX 6650M
AMD Radeon RX 6700M
AMD Radeon RX 7600S
AMD Radeon RX Vega 10
AMD Radeon RX Vega 11
AMD Radeon RX Vega 2
AMD Radeon RX Vega 3
AMD Radeon RX Vega 5
AMD Radeon RX Vega 6
AMD Radeon RX Vega 7
AMD Radeon RX Vega 8
Intel
Intel HD Graphics 4400
Intel HD Graphics 500
Intel HD Graphics 520
Intel HD Graphics 5500
Intel HD Graphics 6000
Intel HD Graphics 610
Intel HD Graphics 620
Intel Iris Graphics
Intel Iris Plus Graphics 655
Intel Iris Xe
Intel UHD Graphics
Intel UHD Graphics 600
Intel UHD Graphics 605
Intel UHD Graphics 615
Intel UHD Graphics 620
nVidia
NVIDIA GeForce 920M
NVIDIA GeForce 940M
NVIDIA GeForce 940MX
NVIDIA GeForce GTX 1050
NVIDIA GeForce GTX 1050 Ti
NVIDIA GeForce GTX 1060
NVIDIA GeForce GTX 1650
NVIDIA GeForce GTX 1650 Ti
NVIDIA GeForce GTX 1650 Ti Max-Q
NVIDIA GeForce GTX 1660 Ti
NVIDIA GeForce GTX 1660 Ti Max-Q
NVIDIA GeForce GTX 850M
NVIDIA GeForce GTX 950M
NVIDIA GeForce GTX 960M
NVIDIA GeForce GTX 980M
NVIDIA GeForce MX110
NVIDIA GeForce MX150
NVIDIA GeForce MX250
NVIDIA GeForce MX330
NVIDIA GeForce MX350
NVIDIA GeForce MX450
NVIDIA GeForce MX550
NVIDIA GeForce MX570
NVIDIA GeForce RTX 2050
NVIDIA GeForce RTX 2060
NVIDIA GeForce RTX 2070
NVIDIA GeForce RTX 2070 Max-Q
NVIDIA GeForce RTX 2080
NVIDIA GeForce RTX 3000
NVIDIA GeForce RTX 3050
NVIDIA GeForce RTX 3050 Ti
NVIDIA GeForce RTX 3060
NVIDIA GeForce RTX 3070
NVIDIA GeForce RTX 3070 Ti
NVIDIA GeForce RTX 3080
NVIDIA GeForce RTX 3080 Ti
NVIDIA GeForce RTX 4050
NVIDIA GeForce RTX 4060
NVIDIA GeForce RTX 4070
NVIDIA GeForce RTX 4080
NVIDIA GeForce RTX 4090
NVIDIA GeForce RTX 5050
NVIDIA Geforce RTX 5060
NVIDIA Geforce RTX 5070
NVIDIA Geforce RTX 5080
NVIDIA Geforce RTX 5090
NVIDIA Quadro M3000M
NVIDIA Quadro RTX 4000
NVIDIA Quadro RTX 5000
NVIDIA Quadro T2000
NVIDIA RTX A1000
NVIDIA RTX A2000
NVIDIA RTX A3000
NVIDIA RTX A4500
NVIDIA RTX A500
Częstotliwość odświeżania ekranu
FILTRUJ
RESETUJ

Ranking Laptopów (Acer)

Wybrane filtry: Acer× - Wyczyść filtry
Laptopy Cena EkranProcesorPamięć RAMSystem operacyjnywlanBluetoothDysk SSD
961
Acer Aspire A17-51M-79VS Intel Core 7 150U 43,9 cm (17.3
Acer Aspire A17-51M-79VS Intel Core 7 150U 43,9 cm (17.3") Full HD 16 GB LPDDR5-SDRAM 1 TB SSD Wi-Fi 6E (802.11ax) Windows 11 Pro Szary NX.J02EG.01C
1 opinia
już od
5886 zł
Zobacz w sklepie
17,3” 1920x1080Intel Core 7 150U16GBWindows 11 Protaktak1000GB
962
Acer Aspire 14 AI A14-52M-55NH Intel Core Ultra 5 226V 14
Acer Aspire 14 AI A14-52M-55NH Intel Core Ultra 5 226V 14" WUXGA 16 GB RAM 512 GB SSD Wi-Fi 6E (802.11ax) Windows 11 Home Szary
4 opinie
już od
4381 zł
Zobacz w sklepie
17,3” 1920x1080Intel Core 7 150U16GBWindows 11 Protaktak1000GB
963
Acer Aspire Go 15 AG15-71P-73XV Intel® Core i7 i7-13620H (15.6
Acer Aspire Go 15 AG15-71P-73XV Intel® Core i7 i7-13620H (15.6") Full HD 16 GB DDR5-SDRAM 512 GB SSD Wi-Fi 6 (802.11ax) Windows 11 Home Srebrny
3 opinie
już od
3543 zł
Zobacz w sklepie
17,3” 1920x1080Intel Core 7 150U16GBWindows 11 Protaktak1000GB
964
Acer TravelMate P6 TMP614-73-TCO-79JZ Intel Core Ultra 7 155H 35,6 cm (14
Acer TravelMate P6 TMP614-73-TCO-79JZ Intel Core Ultra 7 155H 35,6 cm (14") WUXGA 16 GB LPDDR5x-SDRAM 512 GB SSD Wi-Fi 7 (802.11be) Windows 11 Pro Czarny NX.B5LEG.003
2 opinie
już od
6439 zł
Zobacz w sklepie
17,3” 1920x1080Intel Core 7 150U16GBWindows 11 Protaktak1000GB
965
Acer Swift SFX14-72G-788M Intel Core Ultra 7 155H 36,8 cm (14.5
Acer Swift SFX14-72G-788M Intel Core Ultra 7 155H 36,8 cm (14.5") 2.8K 32 GB LPDDR5-SDRAM 1 TB SSD NVIDIA GeForce RTX 4050 Wi-Fi 6 (802.11ax) Windows 11 Pro Szary NX.KR7EG.006
1 opinia
już od
7725 zł
Zobacz w sklepie
17,3” 1920x1080Intel Core 7 150U16GBWindows 11 Protaktak1000GB
966
Acer TravelMate P4 TMP414-53-750Q Intel Core i7 i7-1355U 35,6 cm (14
Acer TravelMate P4 TMP414-53-750Q Intel Core i7 i7-1355U 35,6 cm (14") WUXGA 16 GB DDR4-SDRAM 512 GB SSD Wi-Fi 6E (802.11ax) Windows 11 Pro Niebieski NX.B3YEG.003
1 opinia
już od
5106 zł
Zobacz w sklepie
17,3” 1920x1080Intel Core 7 150U16GBWindows 11 Protaktak1000GB
967
Acer TravelMate P2 15,6
Acer TravelMate P2 15,6" FHD 5-225U 16GB 512GBSSD W11P NX.BLMEG.003
1 opinia
już od
4862 zł
Zobacz w sklepie
17,3” 1920x1080Intel Core 7 150U16GBWindows 11 Protaktak1000GB
968
Acer Nitro 18 AI AMD AN18-61-R968 Copilot+ PC AMD Ryzen AI 9 365 (18
Acer Nitro 18 AI AMD AN18-61-R968 Copilot+ PC AMD Ryzen AI 9 365 (18") WQXGA 32 GB DDR5-SDRAM 1 TB SSD NVIDIA GeForce RTX 5070 Wi-Fi 6E (802.11ax) Windows 11 Home Niemiecki Czarny NH.QYKEG.004
1 opinia
już od
10486 zł
Zobacz w sklepie
17,3” 1920x1080Intel Core 7 150U16GBWindows 11 Protaktak1000GB
969
Acer TravelMate P4 TMP414-42-TCO-R86F AMD Ryzen™ 5 8540U (14
Acer TravelMate P4 TMP414-42-TCO-R86F AMD Ryzen™ 5 8540U (14") WUXGA 16 GB 512 GB SSD Wi-Fi 6E (802.11ax) Windows 11 Pro Niebieski NX.BD0EG.001
1 opinia
już od
3957 zł
Zobacz w sklepie
17,3” 1920x1080Intel Core 7 150U16GBWindows 11 Protaktak1000GB
970
Acer Nitro V16 R5-8645HS/64GB/512/Win11 RTX4050 165Hz
Acer Nitro V16 R5-8645HS/64GB/512/Win11 RTX4050 165Hz
1 opinia
już od
5849 zł
Zobacz w sklepie
17,3” 1920x1080Intel Core 7 150U16GBWindows 11 Protaktak1000GB
971
Acer NB AGSP14-31PT N150 14
Acer NB AGSP14-31PT N150 14"/16/512GB W11 NX.J3UEL.001
3 opinie
już od
2583.59 zł
Zobacz w sklepie
17,3” 1920x1080Intel Core 7 150U16GBWindows 11 Protaktak1000GB
972
Acer Nitro V 16 - Ryzen 5 8645HS 16'' 64GB 1TB Win11 RTX 4050
Acer Nitro V 16 - Ryzen 5 8645HS 16'' 64GB 1TB Win11 RTX 4050
3 opinie
już od
6690 zł
Zobacz w sklepie
17,3” 1920x1080Intel Core 7 150U16GBWindows 11 Protaktak1000GB
973
Acer NX.J7WEB.00D 39
Acer NX.J7WEB.00D 39" AMD Ryzen 5 5625U 8 GB RAM 512 GB SSD
3 opinie
już od
2437.98 zł
Zobacz w sklepie
17,3” 1920x1080Intel Core 7 150U16GBWindows 11 Protaktak1000GB
974
Acer TravelMate TMP414-53-TCO-52H8 14''/i5/16GB/512GB/Win11 NXB1TEL006 NX.B1TEL.006
Acer TravelMate TMP414-53-TCO-52H8 14''/i5/16GB/512GB/Win11 NXB1TEL006 NX.B1TEL.006
4 opinie
już od
3038.97 zł
Zobacz w sklepie
17,3” 1920x1080Intel Core 7 150U16GBWindows 11 Protaktak1000GB
975
Acer NB AG15-32P C3-N355 15
Acer NB AG15-32P C3-N355 15" ENG/16/512GB W11 NX.J46EL.003
3 opinie
już od
2581.34 zł
Zobacz w sklepie
17,3” 1920x1080Intel Core 7 150U16GBWindows 11 Protaktak1000GB
976
ACER SF14-51 CU7-256V 14
ACER SF14-51 CU7-256V 14" EN/16GB/1TB W11 NX.J2KEL.002
1 opinia
już od
4507.63 zł
Zobacz w sklepie
17,3” 1920x1080Intel Core 7 150U16GBWindows 11 Protaktak1000GB
977
Acer Aspire Lite AL15-72P-595Y Intel® Core™ i5 i5-13500H (15.6
Acer Aspire Lite AL15-72P-595Y Intel® Core™ i5 i5-13500H (15.6") Full HD 16 GB DDR5-SDRAM 512 GB SSD Wi-Fi 6 (802.11ax) Windows 11 Home Srebrny NX.D5HEX.001
3 opinie
już od
2301.94 zł
Zobacz w sklepie
17,3” 1920x1080Intel Core 7 150U16GBWindows 11 Protaktak1000GB
978
Acer TravelMate P4 14
Acer TravelMate P4 14" 16:10 i7-255U 16GB 512GBSSD W11P NX.BFEEG.003
1 opinia
już od
5445 zł
Zobacz w sklepie
17,3” 1920x1080Intel Core 7 150U16GBWindows 11 Protaktak1000GB
979
Acer Nitro 16S AI AN16S-61-R5MK (16
Acer Nitro 16S AI AN16S-61-R5MK (16") Szary NH.U06EG.001
1 opinia
już od
12610 zł
Zobacz w sklepie
17,3” 1920x1080Intel Core 7 150U16GBWindows 11 Protaktak1000GB
980
Acer TravelMate P4 14
Acer TravelMate P4 14" 16:10 5-225U 16GB 512GBSSD W11P
3 opinie
już od
5397.63 zł
Zobacz w sklepie
17,3” 1920x1080Intel Core 7 150U16GBWindows 11 Protaktak1000GB

Laptopy - Top 3



961
top Acer Aspire A17-51M-79VS Intel Core 7 150U 43,9 cm (17.3 Acer Aspire A17-51M-79VS Intel Core 7 150U 43,9 cm (17.3") Full HD 16 GB LPDDR5-SDRAM 1 TB SSD Wi-Fi 6E (802.11ax) Windows 11 Pro Szary NX.J02EG.01C
962
top Acer Aspire 14 AI A14-52M-55NH Intel Core Ultra 5 226V 14 Acer Aspire 14 AI A14-52M-55NH Intel Core Ultra 5 226V 14" WUXGA 16 GB RAM 512 GB SSD Wi-Fi 6E (802.11ax) Windows 11 Home Szary
963
top Acer Aspire Go 15 AG15-71P-73XV Intel® Core i7 i7-13620H (15.6 Acer Aspire Go 15 AG15-71P-73XV Intel® Core i7 i7-13620H (15.6") Full HD 16 GB DDR5-SDRAM 512 GB SSD Wi-Fi 6 (802.11ax) Windows 11 Home Srebrny
Cena:
5886 zł
Zobacz w sklepie
4381 zł
Zobacz w sklepie
3543 zł
Zobacz w sklepie
Ocena:
1 opinia
4 opinie
3 opinie
Ekran: 17,3” 1920x108017,3” 1920x108017,3” 1920x1080
Procesor: Intel Core 7 150UIntel Core 7 150UIntel Core 7 150U
Pamięć RAM: 16GB16GB16GB
System operacyjny: Windows 11 ProWindows 11 ProWindows 11 Pro
wlan: taktaktak
Bluetooth: taktaktak
Dysk SSD: 1000GB1000GB1000GB