Benchmark #134326 - pibenchmarks.com

Brand: Samsung PM991 M.2 NVMe Series
SSD (M.2 NVMe)
#4 / 1,702
1,402
#154 / 1,702
#154 / 990
#145 / 284
34,517
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Overview
2026-06-27 00:03:26
#134,326
22,458
-12,059 (-53.70%)
pxpunx
Samsung PM991a 256GB on Xerxes Pi Rev2 w/ CM4008000

Storage Details
Samsung PM991 M.2 NVMe Series
SSD (M.2 NVMe)
238.5G
SSD
Samsung
PM991aNVMeSamsung256GB
None

System Board Details
		Amazon.com AliExpress
Raspberry Pi Compute Module 4 1.1
Raspberry Pi Compute Module 4 Rev 1.1
Raspberry Pi Foundation
N/A
4
1,500
500
1,600

Operating System

Debian GNU/Linux 13 (trixie)
aarch64

Benchmark Results
206 MB/s
360.36 MB/s
358.26 MB/s
38,496 IOPS
83,934 IOPS
153,984 KB/s
335,737 KB/s
107,771 KB/s
74,254 KB/s
43,635 KB/s
95,766 KB/s

inxi Results
System: Host: xerxes Kernel: 6.18.34+rpt-rpi-v8 arch: aarch64 bits: 64 compiler: N/A clocksource: arch_sys_counter parameters: coherent_pool=1M 8250.nr_uarts=0 snd_bcm2835.enable_headphones=0 cgroup_disable=memory numa_policy=interleave nvme.max_host_mem_size_mb=32 snd_bcm2835.enable_hdmi=1 snd_bcm2835.enable_hdmi=0 smsc95xx.macaddr=XX:XX:XX:XX:XX:XX vc_mem.mem_base=0x3ec00000 vc_mem.mem_size=0x40000000 console=ttyS0,115200 console=tty1 root=PARTUUID=a6802a5e-02 rootfstype=ext4 fsck.repair=yes rootwait cfg80211.ieee80211_regdom=US ds=nocloud!i=rpi-imager-1782528674744 Console: pty pts/1 Distro: Debian GNU/Linux 13 (trixie) Machine: Type: ARM System: Raspberry Pi Compute Module 4 Rev 1.1 details: N/A rev: d03141 Battery: Message: No system battery data found. Is one present? Memory: System RAM: total: 8 GiB available: 7.62 GiB used: 301.4 MiB (3.9%) igpu: 76 MiB RAM Report: smbios: No SMBIOS data for dmidecode to process PCI Slots: Message: No ARM data found for this feature. CPU: Info: model: N/A variant: cortex-a72 bits: 64 type: MCP arch: ARMv8 family: 8 model-id: 0 stepping: 3 Topology: cpus: 1x cores: 4 smt: disabled cache: L1: 320 KiB desc: d-4x32 KiB! i-4x48 KiB L2: 1024 KiB desc: 1x1024 KiB Speed (MHz): avg: 1500 min/max: 600/1500 boost: disabled scaling: driver: cpufreq-dt governor: ondemand cores: 1: 1500 2: 1500 3: 1500 4: 1500 bogomips: 432 Features: asimd cpuid crc32 evtstrm fp Vulnerabilities: Type: gather_data_sampling status: Not affected Type: ghostwrite status: Not affected Type: indirect_target_selection status: Not affected Type: itlb_multihit status: Not affected Type: l1tf status: Not affected Type: mds status: Not affected Type: meltdown status: Not affected Type: mmio_stale_data status: Not affected Type: old_microcode status: Not affected Type: reg_file_data_sampling status: Not affected Type: retbleed status: Not affected Type: spec_rstack_overflow status: Not affected Type: spec_store_bypass status: Vulnerable Type: spectre_v1 mitigation: __user pointer sanitization Type: spectre_v2 status: Vulnerable Type: srbds status: Not affected Type: tsa status: Not affected Type: tsx_async_abort status: Not affected Type: vmscape status: Not affected Graphics: Device-1: bcm2711-hdmi0 driver: vc4_hdmi v: N/A bus-ID: N/A chip-ID: brcm:fef00700 class-ID: hdmi Device-2: bcm2711-hdmi1 driver: vc4_hdmi v: N/A bus-ID: N/A chip-ID: brcm:fef05700 class-ID: hdmi Device-3: bcm2711-vc5 driver: vc4_drm v: N/A bus-ID: N/A chip-ID: brcm:gpu class-ID: gpu Display: server: No display server data found. Headless machine? tty: 240x64 API: N/A Message: No API data available in console. Headless machine? Audio: Device-1: bcm2711-hdmi0 driver: vc4_hdmi bus-ID: N/A chip-ID: brcm:fef00700 class-ID: hdmi Device-2: bcm2711-hdmi1 driver: vc4_hdmi bus-ID: N/A chip-ID: brcm:fef05700 class-ID: hdmi API: ALSA v: k6.18.34+rpt-rpi-v8 status: kernel-api tools: alsactl,alsamixer,amixer Network: Device-1: bcm2835-mmc driver: mmc_bcm2835 v: N/A port: N/A bus-ID: N/A chip-ID: brcm:fe300000 class-ID: mmcnr Device-2: bcm2711-genet-v5 driver: bcmgenet v: N/A port: N/A bus-ID: N/A chip-ID: brcm:fd580000 class-ID: ethernet IF: eth0 state: up speed: 1000 Mbps duplex: full mac: XX:XX:XX:XX:XX:XX IP v4: 10.0.X.X/28 type: dynamic noprefixroute scope: global broadcast: 10.0.X.X IP v6: fe80::50d2:a0c5:1a78:444b/64 type: noprefixroute scope: link WAN IP: 73.240.X.X Bluetooth: Device-1: pl011-axi driver: uart_pl011 bus-ID: N/A chip-ID: arm:fe201000 class-ID: serial Report: hciconfig ID: hci0 rfk-id: 0 state: down bt-service: enabled,running rfk-block: hardware: no software: yes address: XX:XX:XX:XX:XX:XX Info: acl-mtu: 0:0 sco-mtu: 0:0 link-mode: peripheral accept Device-2: pl011-axi driver: ctrl bus-ID: N/A chip-ID: arm:gpiochip0 class-ID: serial Logical: Message: No logical block device data found. RAID: Message: No RAID data found. Drives: Local Storage: total: 268.29 GiB used: 4.32 GiB (1.6%) ID-1: /dev/mmcblk0 maj-min: 179:0 vendor: Samsung model: EB1QT size: 29.81 GiB block-size: physical: 512 B logical: 512 B type: Removable tech: SSD scheme: MBR SMART Message: Unknown smartctl error. Unable to generate data. ID-2: /dev/nvme0n1 maj-min: 259:0 vendor: Samsung model: PM991a NVMe 256GB size: 238.47 GiB block-size: physical: 512 B logical: 512 B speed: 31.6 Gb/s lanes: 4 tech: SSD fw-rev: 26300039 temp: 79.8 C SMART: yes health: PASSED on: 2 hrs cycles: 23 read-units: 154,077 [78.8 GB] written-units: 227,820 [116 GB] Message: No optical or floppy data found. Partition: ID-1: / raw-size: 29.3 GiB size: 28.8 GiB (98.26%) used: 4.24 GiB (14.7%) fs: ext4 block-size: 4096 B dev: /dev/mmcblk0p2 maj-min: 179:2 label: rootfs uuid: 15f4c6be-1102-4331-9904-f78e78afd1fd ID-2: /boot/firmware raw-size: 512 MiB size: 504.1 MiB (98.46%) used: 75.4 MiB (15.0%) fs: vfat block-size: 512 B dev: /dev/mmcblk0p1 maj-min: 179:1 label: bootfs uuid: B2F0-82D2 ID-3: /mnt/sda1 raw-size: 238.47 GiB size: 234.64 GiB (98.39%) used: 3.2 MiB (0.0%) fs: ext4 block-size: 4096 B dev: /dev/nvme0n1 maj-min: 259:0 label: N/A uuid: 1e79fd55-fbf8-49a9-b83c-b6a5c7b5944e Swap: Kernel: swappiness: 60 (default) cache-pressure: 100 (default) zswap: no ID-1: swap-1 type: zram size: 2 GiB used: 0 KiB (0.0%) priority: 100 comp: zstd avail: lzo-rle,lzo,lz4 dev: /dev/zram0 Unmounted: Message: No unmounted partitions found. USB: Hub-1: 1-0:1 info: hi-speed hub with single TT ports: 1 rev: 2.0 speed: 480 Mb/s (57.2 MiB/s) lanes: 1 mode: 2.0 chip-ID: 1d6b:0002 class-ID: 0900 Sensors: Src: /sys System Temperatures: cpu: 49.2 C mobo: N/A Fan Speeds (rpm): N/A Repos: Packages: pm: dpkg pkgs: 689 libs: 334 tools: apt,apt-get No active apt repos in: /etc/apt/sources.list Active apt repos in: /etc/apt/sources.list.d/debian.sources 1: deb http://deb.debian.org/debian/ trixie trixie-updates main contrib non-free non-free-firmware 2: deb http://deb.debian.org/debian-security/ trixie-security main contrib non-free non-free-firmware Active apt repos in: /etc/apt/sources.list.d/raspi.sources 1: deb http://archive.raspberrypi.com/debian/ trixie main Processes: CPU top: 5 of 168 1: cpu: 50.0% command: ps pid: 959 mem: 3.33 MiB (0.0%) 2: cpu: 1.2% command: init pid: 1 mem: 14.1 MiB (0.1%) 3: cpu: 0.2% command: [kworker/u16:0-kvfree_rcu_reclaim] pid: 12 mem: 0.00 MiB (0.0%) 4: cpu: 0.2% command: systemd-udevd pid: 341 mem: 9.88 MiB (0.1%) 5: cpu: 0.2% command: systemd pid: 738 mem: 11.9 MiB (0.1%) Memory top: 5 of 168 1: mem: 18.9 MiB (0.2%) command: networkmanager pid: 591 cpu: 0.1% 2: mem: 14.1 MiB (0.1%) command: init pid: 1 cpu: 1.2% 3: mem: 11.9 MiB (0.1%) command: systemd pid: 738 cpu: 0.2% 4: mem: 11.7 MiB (0.1%) command: sshd-session: pid: 732 cpu: 0.0% 5: mem: 9.88 MiB (0.1%) command: systemd-udevd pid: 341 cpu: 0.2% Info: Processes: 168 Uptime: 2m Init: systemd v: 257 default: multi-user tool: systemctl Compilers: gcc: 14.2.0 alt: 14 Shell: Bash (sudo) v: 5.2.37 running-in: pty pts/1 inxi: 3.3.31

inxi Results

System:
  Host: xerxes Kernel: 6.18.34+rpt-rpi-v8 arch: aarch64 bits: 64 compiler: N/A
    clocksource: arch_sys_counter parameters: coherent_pool=1M 8250.nr_uarts=0
    snd_bcm2835.enable_headphones=0 cgroup_disable=memory numa_policy=interleave
    nvme.max_host_mem_size_mb=32 snd_bcm2835.enable_hdmi=1 snd_bcm2835.enable_hdmi=0
    smsc95xx.macaddr=XX:XX:XX:XX:XX:XX vc_mem.mem_base=0x3ec00000 vc_mem.mem_size=0x40000000
    console=ttyS0,115200 console=tty1 root=PARTUUID=a6802a5e-02 rootfstype=ext4 fsck.repair=yes
    rootwait cfg80211.ieee80211_regdom=US ds=nocloud!i=rpi-imager-1782528674744
  Console: pty pts/1 Distro: Debian GNU/Linux 13 (trixie)
Machine:
  Type: ARM System: Raspberry Pi Compute Module 4 Rev 1.1 details: N/A rev: d03141
    Battery:
  Message: No system battery data found. Is one present?
Memory:
  System RAM: total: 8 GiB available: 7.62 GiB used: 301.4 MiB (3.9%) igpu: 76 MiB
  RAM Report: smbios: No SMBIOS data for dmidecode to process
PCI Slots:
  Message: No ARM data found for this feature.
CPU:
  Info: model: N/A variant: cortex-a72 bits: 64 type: MCP arch: ARMv8 family: 8 model-id: 0
    stepping: 3
  Topology: cpus: 1x cores: 4 smt: disabled cache: L1: 320 KiB desc: d-4x32 KiB! i-4x48 KiB
    L2: 1024 KiB desc: 1x1024 KiB
  Speed (MHz): avg: 1500 min/max: 600/1500 boost: disabled scaling: driver: cpufreq-dt
    governor: ondemand cores: 1: 1500 2: 1500 3: 1500 4: 1500 bogomips: 432
  Features: asimd cpuid crc32 evtstrm fp
  Vulnerabilities:
  Type: gather_data_sampling status: Not affected
  Type: ghostwrite status: Not affected
  Type: indirect_target_selection status: Not affected
  Type: itlb_multihit status: Not affected
  Type: l1tf status: Not affected
  Type: mds status: Not affected
  Type: meltdown status: Not affected
  Type: mmio_stale_data status: Not affected
  Type: old_microcode status: Not affected
  Type: reg_file_data_sampling status: Not affected
  Type: retbleed status: Not affected
  Type: spec_rstack_overflow status: Not affected
  Type: spec_store_bypass status: Vulnerable
  Type: spectre_v1 mitigation: __user pointer sanitization
  Type: spectre_v2 status: Vulnerable
  Type: srbds status: Not affected
  Type: tsa status: Not affected
  Type: tsx_async_abort status: Not affected
  Type: vmscape status: Not affected
Graphics:
  Device-1: bcm2711-hdmi0 driver: vc4_hdmi v: N/A bus-ID: N/A chip-ID: brcm:fef00700
    class-ID: hdmi
  Device-2: bcm2711-hdmi1 driver: vc4_hdmi v: N/A bus-ID: N/A chip-ID: brcm:fef05700
    class-ID: hdmi
  Device-3: bcm2711-vc5 driver: vc4_drm v: N/A bus-ID: N/A chip-ID: brcm:gpu class-ID: gpu
  Display: server: No display server data found. Headless machine? tty: 240x64
  API: N/A Message: No API data available in console. Headless machine?
Audio:
  Device-1: bcm2711-hdmi0 driver: vc4_hdmi bus-ID: N/A chip-ID: brcm:fef00700 class-ID: hdmi
  Device-2: bcm2711-hdmi1 driver: vc4_hdmi bus-ID: N/A chip-ID: brcm:fef05700 class-ID: hdmi
  API: ALSA v: k6.18.34+rpt-rpi-v8 status: kernel-api tools: alsactl,alsamixer,amixer
Network:
  Device-1: bcm2835-mmc driver: mmc_bcm2835 v: N/A port: N/A bus-ID: N/A chip-ID: brcm:fe300000
    class-ID: mmcnr
  Device-2: bcm2711-genet-v5 driver: bcmgenet v: N/A port: N/A bus-ID: N/A
    chip-ID: brcm:fd580000 class-ID: ethernet
  IF: eth0 state: up speed: 1000 Mbps duplex: full mac: XX:XX:XX:XX:XX:XX
  IP v4: 10.0.X.X/28 type: dynamic noprefixroute scope: global broadcast: 10.0.X.X
  IP v6: fe80::50d2:a0c5:1a78:444b/64 type: noprefixroute scope: link
  WAN IP: 73.240.X.X
Bluetooth:
  Device-1: pl011-axi driver: uart_pl011 bus-ID: N/A chip-ID: arm:fe201000 class-ID: serial
  Report: hciconfig ID: hci0 rfk-id: 0 state: down bt-service: enabled,running rfk-block:
    hardware: no software: yes address: XX:XX:XX:XX:XX:XX
  Info: acl-mtu: 0:0 sco-mtu: 0:0 link-mode: peripheral accept
  Device-2: pl011-axi driver: ctrl bus-ID: N/A chip-ID: arm:gpiochip0 class-ID: serial
Logical:
  Message: No logical block device data found.
RAID:
  Message: No RAID data found.
Drives:
  Local Storage: total: 268.29 GiB used: 4.32 GiB (1.6%)
  ID-1: /dev/mmcblk0 maj-min: 179:0 vendor: Samsung model: EB1QT size: 29.81 GiB block-size:
    physical: 512 B logical: 512 B type: Removable tech: SSD scheme: MBR
  SMART Message: Unknown smartctl error. Unable to generate data.
  ID-2: /dev/nvme0n1 maj-min: 259:0 vendor: Samsung model: PM991a NVMe 256GB size: 238.47 GiB
    block-size: physical: 512 B logical: 512 B speed: 31.6 Gb/s lanes: 4 tech: SSD
    fw-rev: 26300039 temp: 79.8 C
  SMART: yes health: PASSED on: 2 hrs cycles: 23 read-units: 154,077 [78.8 GB]
    written-units: 227,820 [116 GB]
  Message: No optical or floppy data found.
Partition:
  ID-1: / raw-size: 29.3 GiB size: 28.8 GiB (98.26%) used: 4.24 GiB (14.7%) fs: ext4
    block-size: 4096 B dev: /dev/mmcblk0p2 maj-min: 179:2 label: rootfs
    uuid: 15f4c6be-1102-4331-9904-f78e78afd1fd
  ID-2: /boot/firmware raw-size: 512 MiB size: 504.1 MiB (98.46%) used: 75.4 MiB (15.0%)
    fs: vfat block-size: 512 B dev: /dev/mmcblk0p1 maj-min: 179:1 label: bootfs uuid: B2F0-82D2
  ID-3: /mnt/sda1 raw-size: 238.47 GiB size: 234.64 GiB (98.39%) used: 3.2 MiB (0.0%) fs: ext4
    block-size: 4096 B dev: /dev/nvme0n1 maj-min: 259:0 label: N/A
    uuid: 1e79fd55-fbf8-49a9-b83c-b6a5c7b5944e
Swap:
  Kernel: swappiness: 60 (default) cache-pressure: 100 (default) zswap: no
  ID-1: swap-1 type: zram size: 2 GiB used: 0 KiB (0.0%) priority: 100 comp: zstd
    avail: lzo-rle,lzo,lz4 dev: /dev/zram0
Unmounted:
  Message: No unmounted partitions found.
USB:
  Hub-1: 1-0:1 info: hi-speed hub with single TT ports: 1 rev: 2.0 speed: 480 Mb/s (57.2 MiB/s)
    lanes: 1 mode: 2.0 chip-ID: 1d6b:0002 class-ID: 0900
Sensors:
  Src: /sys System Temperatures: cpu: 49.2 C mobo: N/A
  Fan Speeds (rpm): N/A
Repos:
  Packages: pm: dpkg pkgs: 689 libs: 334 tools: apt,apt-get
  No active apt repos in: /etc/apt/sources.list
  Active apt repos in: /etc/apt/sources.list.d/debian.sources
    1: deb http://deb.debian.org/debian/ trixie trixie-updates main contrib non-free non-free-firmware
    2: deb http://deb.debian.org/debian-security/ trixie-security main contrib non-free non-free-firmware
  Active apt repos in: /etc/apt/sources.list.d/raspi.sources
    1: deb http://archive.raspberrypi.com/debian/ trixie main
Processes:
  CPU top: 5 of 168
  1: cpu: 50.0% command: ps pid: 959 mem: 3.33 MiB (0.0%)
  2: cpu: 1.2% command: init pid: 1 mem: 14.1 MiB (0.1%)
  3: cpu: 0.2% command: [kworker/u16:0-kvfree_rcu_reclaim] pid: 12 mem: 0.00 MiB (0.0%)
  4: cpu: 0.2% command: systemd-udevd pid: 341 mem: 9.88 MiB (0.1%)
  5: cpu: 0.2% command: systemd pid: 738 mem: 11.9 MiB (0.1%)
  Memory top: 5 of 168
  1: mem: 18.9 MiB (0.2%) command: networkmanager pid: 591 cpu: 0.1%
  2: mem: 14.1 MiB (0.1%) command: init pid: 1 cpu: 1.2%
  3: mem: 11.9 MiB (0.1%) command: systemd pid: 738 cpu: 0.2%
  4: mem: 11.7 MiB (0.1%) command: sshd-session: pid: 732 cpu: 0.0%
  5: mem: 9.88 MiB (0.1%) command: systemd-udevd pid: 341 cpu: 0.2%
Info:
  Processes: 168 Uptime: 2m Init: systemd v: 257 default: multi-user tool: systemctl Compilers:
  gcc: 14.2.0 alt: 14 Shell: Bash (sudo) v: 5.2.37 running-in: pty pts/1 inxi: 3.3.31

Benchmark #134326 - Brand: Samsung PM991 M.2 NVMe Series