Raspberry Pi Project Mtundu wapamwamba wa Raspberry Pi 4 board womwe umabwera ndi 8GB ya RAM. Mtengo wa njira yatsopano ya board $75. Poyerekeza, matabwa omwe ali ndi 2 ndi 4 GB ya RAM amagulitsa $ 35 ndi $ 55, motsatira.
Chip cha BCM2711 chomwe chimagwiritsidwa ntchito mu board chimakulolani kuti muzitha kukumbukira mpaka 16 GB, koma bolodi itapangidwa chaka chatha, panalibe tchipisi tating'ono ta LPDDR4 SDRAM togulitsidwa. Tsopano Micron watulutsa tchipisi zofunika za 8 GB, pamaziko omwe mtundu watsopano wa Raspberry Pi 4 umangidwira. chosinthira pulse kuchokera kudera lomwe lili pafupi ndi zolumikizira za USB 8 kupita kudera lomwe lili pafupi ndi USB-C.
Tikumbukire kuti bolodi ya Raspberry Pi 4 ili ndi SoC BCM2711 ndipo ili ndi ma cores anayi a 64-bit ARMv8 Cortex-A72 omwe amagwira ntchito pa 1.5GHz ndi VideoCore VI graphic accelerator yomwe imathandizira OpenGL ES 3.0 ndipo imatha kutsitsa mtundu wa kanema wa H.265 4Kp60 (kapena 4Kp30 kwa oyang'anira awiri). Bolodi ili ndi LPDDR4 memory, PCI Express controller, Gigabit Efaneti, madoko awiri a USB 3.0 (kuphatikiza ma doko awiri a USB 2.0), madoko awiri a Micro HDMI (4K), mapini 40 GPIO, DSI (kulumikizana pazenera), CSI (kamera kugwirizana) ndi chipangizo cholumikizira opanda zingwe chothandizira mulingo wa 802.11ac, ukugwira ntchito pa 2.4GHz ndi 5GHz ma frequency ndi Bluetooth 5.0. Mphamvu zitha kuperekedwa kudzera padoko la USB-C (lomwe kale linali USB yaying'ono-B), kudzera pa GPIO kapena posankha gawo la PoE HAT (Power over Ethernet). Poyesa magwiridwe antchito, Rasipiberi Pi 4 imaposa Raspberry Pi 3B+ ndi 2-4 nthawi, ndi Raspberry Pi 1 nthawi 40.
Source: opennet.ru