Raspberry Pi Project Ib qho kev tshaj tawm ntawm Raspberry Pi 4 board uas los nrog 8GB ntawm RAM. Tus nqi ntawm kev xaiv pawg thawj coj tshiab $75. Rau kev sib piv, cov laug cam nrog 2 thiab 4 GB ntawm RAM muag rau $ 35 thiab $ 55, feem.
BCM2711 nti siv nyob rau hauv lub rooj tsavxwm tso cai rau koj hais txog 16 GB ntawm lub cim xeeb, tab sis thaum lub rooj tsavxwm tau tsim xyoo tas los, tsis muaj qhov tsim nyog LPDDR4 SDRAM chips ntawm kev muag khoom. Tam sim no Micron tau tso tawm qhov tsim nyog 8 GB chips, raws li cov qauv tshiab ntawm Raspberry Pi 4 tau tsim. Kev xa tawm ntawm lub zog siv zog ntau dua 8 GB LPDDR4 SDRAM nti kuj yuav tsum tau hloov kho me ntsis ntawm lub zog hluav taws xob thiab txav mus. tus mem tes converter los ntawm cheeb tsam ib sab ntawm USB 2.0 connectors rau thaj tsam ntawm USB-C.
Cia peb nco ntsoov tias Raspberry Pi 4 lub rooj tsavxwm tau nruab nrog SoC BCM2711 thiab suav nrog plaub 64-ntsis ARMv8 Cortex-A72 cores ua haujlwm ntawm 1.5GHz thiab VideoCore VI cov duab nrawm uas txhawb nqa OpenGL ES 3.0 thiab muaj peev xwm txiav txim siab H.265 video zoo 4Kp60. (los yog 4Kp30 rau ob lub saib). Lub rooj tsavxwm tau nruab nrog LPDDR4 nco, PCI Express maub los, Gigabit Ethernet, ob lub USB 3.0 chaw nres nkoj (ntxiv rau ob lub USB 2.0 chaw nres nkoj), ob lub Micro HDMI (4K) chaw nres nkoj, 40-pin GPIO, DSI (kov screen txuas), CSI (lub koob yees duab kev sib txuas) thiab kev sib txuas lus wireless txhawb nqa tus qauv 802.11ac, ua haujlwm ntawm 2.4GHz thiab 5GHz zaus thiab Bluetooth 5.0. Lub zog tuaj yeem muab los ntawm USB-C chaw nres nkoj (yav dhau los USB micro-B), ntawm GPIO lossis los ntawm kev xaiv PoE HAT (Power over Ethernet) module. Hauv kev ntsuas kev ua tau zoo, Raspberry Pi 4 ua tau zoo dua Raspberry Pi 3B + los ntawm 2-4 zaug, thiab Raspberry Pi 1 los ntawm 40 zaug.
Tau qhov twg los: opennet.ru