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Radxa Dragon Q6A #85

@geerlingguy

Description

@geerlingguy

Image

Basic information

  • Board URL (official): https://radxa.com/products/dragon/q6a/
  • Board purchased from: AliExpress
  • Board purchase date: October 27, 2025
  • Board specs (as tested): 8GB RAM
  • Board price (as tested): $141.39

Linux/system information

# output of `screenfetch`
                          ./+o+-       radxa@radxa-dragon-q6a
                  yyyyy- -yyyyyy+      OS: Ubuntu 24.04 noble
               ://+//////-yyyyyyo      Kernel: aarch64 Linux 6.17.1-3-qcom
           .++ .:/++++++/-.+sss/`      Uptime: 1m
         .:++o:  /++++++++/:--:/-      Packages: 1871
        o:+o+:++.`..```.-/oo+++++/     Shell: dash
       .:+o:+o/.          `+sssoo+/    Disk: 6.3G / 30G (23%)
  .++/+:+oo+o:`             /sssooo.   CPU: ARM Cortex-A55 Cortex-A78 @ 8x 1.9584GHz
 /+++//+:`oo+o               /::--:.   GPU: 
 \+/+o+++`o++o               ++////.   RAM: 683MiB / 7604MiB
  .++.o+++oo+:`             /dddhhh.  
       .+.o+oo:.          `oddhhhh+   
        \+.++o+o``-````.:ohdhhhhh+    
         `:o+++ `ohhhhhhhhyo++os:     
           .o:`.syhhhhhhh/.oo++o`     
               /osyyyyyyo++ooo+++/    
                   ````` +oo+++o\:    
                          `oo++.      

# output of `uname -a`
Linux radxa-dragon-q6a 6.17.1-3-qcom #3 SMP PREEMPT_DYNAMIC Wed Nov  5 14:13:05 UTC 2025 aarch64 aarch64 aarch64 GNU/Linux

System topology

Image

Note: lstopo results may be missing some information on new and strange SoCs.

Benchmark results

CPU

Power

  • Idle power draw (at wall): 2.9 W
  • Maximum simulated power draw (stress-ng --matrix 0): 9.3 W
  • During Geekbench multicore benchmark: 9.5 W
  • During top500 HPL benchmark: 10.1 W

Disk

Samsung Pro+ 32GB microSD

Benchmark Result
iozone 4K random read 8.91 MB/s
iozone 4K random write 0.80 MB/s
iozone 1M random read 72.64 MB/s
iozone 1M random write 2.32 MB/s
iozone 1M sequential read 73.70 MB/s
iozone 1M sequential write 61.45 MB/s

Network

iperf3 results:

Built-in Ethernet (Realtek 1 Gbps)

  • iperf3 -c $SERVER_IP: 943 Mbps
  • iperf3 -c $SERVER_IP --reverse: 942 Mbps
  • iperf3 -c $SERVER_IP --bidir: 920 Mbps up, 937 Mbps down

Built-in WiFi (AICSemi AIC 8800D80 WiFi 6)

  • iperf3 -c $SERVER_IP: 187 Mbps
  • iperf3 -c $SERVER_IP --reverse: 177 Mbps
  • iperf3 -c $SERVER_IP --bidir: 113 Mbps up, 107 Mbps down

(Be sure to test all interfaces, noting any that are non-functional.)

GPU

glmark2

glmark2-es2 results:

ATTENTION: default value of option force_gl_vendor overridden by environment.
=======================================================
    glmark2 2023.01
=======================================================
    OpenGL Information
    GL_VENDOR:      notfreedreno
    GL_RENDERER:    FD643
    GL_VERSION:     4.6 (Compatibility Profile) Mesa 25.0.7-0ubuntu0.24.04.2
    Surface Config: buf=32 r=8 g=8 b=8 a=8 depth=24 stencil=0 samples=0
    Surface Size:   800x600 windowed
=======================================================
[build] use-vbo=false: FPS: 1884 FrameTime: 0.531 ms
[build] use-vbo=true: FPS: 2078 FrameTime: 0.481 ms
[texture] texture-filter=nearest: FPS: 1914 FrameTime: 0.523 ms
[texture] texture-filter=linear: FPS: 1827 FrameTime: 0.548 ms
[texture] texture-filter=mipmap: FPS: 1814 FrameTime: 0.551 ms
[shading] shading=gouraud: FPS: 1865 FrameTime: 0.536 ms
[shading] shading=blinn-phong-inf: FPS: 1856 FrameTime: 0.539 ms
[shading] shading=phong: FPS: 1832 FrameTime: 0.546 ms
[shading] shading=cel: FPS: 1810 FrameTime: 0.553 ms
[bump] bump-render=high-poly: FPS: 1392 FrameTime: 0.719 ms
[bump] bump-render=normals: FPS: 2008 FrameTime: 0.498 ms
[bump] bump-render=height: FPS: 1907 FrameTime: 0.525 ms
[effect2d] kernel=0,1,0;1,-4,1;0,1,0;: FPS: 1673 FrameTime: 0.598 ms
[effect2d] kernel=1,1,1,1,1;1,1,1,1,1;1,1,1,1,1;: FPS: 1249 FrameTime: 0.801 ms
[pulsar] light=false:quads=5:texture=false: FPS: 1901 FrameTime: 0.526 ms
[desktop] blur-radius=5:effect=blur:passes=1:separable=true:windows=4: FPS: 1194 FrameTime: 0.838 ms
[desktop] effect=shadow:windows=4: FPS: 1672 FrameTime: 0.598 ms
[buffer] columns=200:interleave=false:update-dispersion=0.9:update-fraction=0.5:update-method=map: FPS: 330 FrameTime: 3.033 ms
[buffer] columns=200:interleave=false:update-dispersion=0.9:update-fraction=0.5:update-method=subdata: FPS: 553 FrameTime: 1.811 ms
[buffer] columns=200:interleave=true:update-dispersion=0.9:update-fraction=0.5:update-method=map: FPS: 730 FrameTime: 1.370 ms
[ideas] speed=duration: FPS: 1269 FrameTime: 0.788 ms
[jellyfish] <default>: FPS: 1668 FrameTime: 0.600 ms
[terrain] <default>: FPS: 218 FrameTime: 4.592 ms
[shadow] <default>: FPS: 1304 FrameTime: 0.767 ms
[refract] <default>: FPS: 224 FrameTime: 4.472 ms
[conditionals] fragment-steps=0:vertex-steps=0: FPS: 1840 FrameTime: 0.544 ms
[conditionals] fragment-steps=5:vertex-steps=0: FPS: 1803 FrameTime: 0.555 ms
[conditionals] fragment-steps=0:vertex-steps=5: FPS: 1795 FrameTime: 0.557 ms
[function] fragment-complexity=low:fragment-steps=5: FPS: 1788 FrameTime: 0.559 ms
[function] fragment-complexity=medium:fragment-steps=5: FPS: 1777 FrameTime: 0.563 ms
[loop] fragment-loop=false:fragment-steps=5:vertex-steps=5: FPS: 1782 FrameTime: 0.561 ms
[loop] fragment-steps=5:fragment-uniform=false:vertex-steps=5: FPS: 1747 FrameTime: 0.573 ms
[loop] fragment-steps=5:fragment-uniform=true:vertex-steps=5: FPS: 1758 FrameTime: 0.569 ms
=======================================================
                                  glmark2 Score: 1528 
=======================================================

vkmark

vkmark results:

ERROR:             VkInstanceCreateInfo::pApplicationInfo::apiVersion has value of 0 which is not permitted. If apiVersion is not 0, then it must be greater than or equal to the value of VK_API_VERSION_1_0 [VUID-VkApplicationInfo-apiVersion]
ATTENTION: default value of option force_gl_vendor overridden by environment.
=======================================================
    vkmark 2017.08
=======================================================
    Vendor ID:      0x5143
    Device ID:      0x6030500
    Device Name:    Turnip Adreno (TM) 643
    Driver Version: 104857607
    Device UUID:    cc360f788b9de32391c52de0238d6409
=======================================================
[vertex] device-local=true: FPS: 3384 FrameTime: 0.296 ms
[vertex] device-local=false: FPS: 3572 FrameTime: 0.280 ms
[texture] anisotropy=0: FPS: 2996 FrameTime: 0.334 ms
[texture] anisotropy=16: FPS: 3010 FrameTime: 0.332 ms
[shading] shading=gouraud: FPS: 2196 FrameTime: 0.455 ms
[shading] shading=blinn-phong-inf: FPS: 2219 FrameTime: 0.451 ms
[shading] shading=phong: FPS: 2213 FrameTime: 0.452 ms
[shading] shading=cel: FPS: 2235 FrameTime: 0.447 ms
[effect2d] kernel=edge: FPS: 4825 FrameTime: 0.207 ms
[effect2d] kernel=blur: FPS: 2804 FrameTime: 0.357 ms
[desktop] <default>: FPS: 3122 FrameTime: 0.320 ms
[cube] <default>: FPS: 5063 FrameTime: 0.198 ms
[clear] <default>: FPS: 5321 FrameTime: 0.188 ms
=======================================================
                                   vkmark Score: 3304
=======================================================

GravityMark

GravityMark results:

M:      0 us: ../data.zip: 313 files
M:    350 us: Temporal antialiasing
M:    374 us: Render Statistics
M:  48.97 ms: Build Date: Jun 20 2025
M:  49.11 ms: Build Info: version=20250429; linux; arm64; release; vk=1; gl=45; gles=32; cu=1; fusion
M:  49.15 ms: Build Version: 1.89
M:  52.98 ms: Name: Radxa Dragon Q6A
M:  53.12 ms: System: Ubuntu 24.04.3 LTS
M:  53.17 ms: Kernel: Linux 6.17.1-3-qcom aarch64
M:  53.21 ms: Memory: 7.43 GB
M:  53.27 ms: Uptime: 13 m 4 s
M:  53.30 ms: CPU: arm64
M:  62.04 ms: Desktop: 1920x1080 1.0
M:  65.64 ms: Screen 0: 1920x1080 0 0 HDMI-1
M:  65.87 ms: Creating 1600x900 OpenGL Window
M: 217.50 ms: Render Size: 1600x900
M: 217.65 ms: Using Fetch Mode
Segmentation fault
E:  24.376 s: Session::read(): can't exec "./GravityMark.arm64 -gl -ta 1 -a 200000 -fps 1 -info 1 -sensors 1 -name "geerlingguy" -benchmark 1" command

GravityMark wouldn't run with either Vulkan or OpenGL on the official image.

AI / LLM Inference

tinyllama-1.1b-1t-openorca.Q4_K_M.gguf

model size params backend threads test t/s
llama 1B Q4_K - Medium 636.18 MiB 1.10 B CPU 8 pp512 25.25 ± 0.11
llama 1B Q4_K - Medium 636.18 MiB 1.10 B CPU 8 pp4096 19.08 ± 0.02
llama 1B Q4_K - Medium 636.18 MiB 1.10 B CPU 8 tg128 15.23 ± 0.33
llama 1B Q4_K - Medium 636.18 MiB 1.10 B CPU 8 pp4096+tg128 18.22 ± 0.03

Power consumption: 7.8W

Llama-3.2-3B-Instruct-Q4_K_M.gguf

model size params backend threads test t/s
llama 3B Q4_K - Medium 1.87 GiB 3.21 B CPU 8 pp512 8.76 ± 0.13
llama 3B Q4_K - Medium 1.87 GiB 3.21 B CPU 8 pp4096 7.36 ± 0.03
llama 3B Q4_K - Medium 1.87 GiB 3.21 B CPU 8 tg128 4.81 ± 0.14
llama 3B Q4_K - Medium 1.87 GiB 3.21 B CPU 8 pp4096+tg128 7.00 ± 0.01

Power consumption: 7.9W

Memory

tinymembench results:

Click to expand memory benchmark result
tinymembench v0.4.10 (simple benchmark for memory throughput and latency)

==========================================================================
== Memory bandwidth tests                                               ==
==                                                                      ==
== Note 1: 1MB = 1000000 bytes                                          ==
== Note 2: Results for 'copy' tests show how many bytes can be          ==
==         copied per second (adding together read and writen           ==
==         bytes would have provided twice higher numbers)              ==
== Note 3: 2-pass copy means that we are using a small temporary buffer ==
==         to first fetch data into it, and only then write it to the   ==
==         destination (source -> L1 cache, L1 cache -> destination)    ==
== Note 4: If sample standard deviation exceeds 0.1%, it is shown in    ==
==         brackets                                                     ==
==========================================================================

 C copy backwards                                     :   8392.6 MB/s (0.3%)
 C copy backwards (32 byte blocks)                    :   8391.2 MB/s
 C copy backwards (64 byte blocks)                    :   8394.7 MB/s
 C copy                                               :   8392.8 MB/s (0.4%)
 C copy prefetched (32 bytes step)                    :   8390.4 MB/s
 C copy prefetched (64 bytes step)                    :   8391.6 MB/s
 C 2-pass copy                                        :   8463.9 MB/s
 C 2-pass copy prefetched (32 bytes step)             :   8423.7 MB/s
 C 2-pass copy prefetched (64 bytes step)             :   8443.1 MB/s (0.6%)
 C fill                                               :  19527.4 MB/s (0.3%)
 C fill (shuffle within 16 byte blocks)               :  19535.2 MB/s (0.3%)
 C fill (shuffle within 32 byte blocks)               :  19538.5 MB/s
 C fill (shuffle within 64 byte blocks)               :  19508.1 MB/s (0.2%)
 NEON 64x2 COPY                                       :   8393.2 MB/s
 NEON 64x2x4 COPY                                     :   8400.5 MB/s
 NEON 64x1x4_x2 COPY                                  :   8391.8 MB/s
 NEON 64x2 COPY prefetch x2                           :   8168.1 MB/s
 NEON 64x2x4 COPY prefetch x1                         :   8131.8 MB/s
 NEON 64x2 COPY prefetch x1                           :   8210.2 MB/s
 NEON 64x2x4 COPY prefetch x1                         :   8131.2 MB/s
 ---
 standard memcpy                                      :   8245.0 MB/s (0.6%)
 standard memset                                      :  19482.1 MB/s
 ---
 NEON LDP/STP copy                                    :   8413.0 MB/s
 NEON LDP/STP copy pldl2strm (32 bytes step)          :   8419.2 MB/s
 NEON LDP/STP copy pldl2strm (64 bytes step)          :   8412.2 MB/s
 NEON LDP/STP copy pldl1keep (32 bytes step)          :   8389.6 MB/s
 NEON LDP/STP copy pldl1keep (64 bytes step)          :   8393.5 MB/s
 NEON LD1/ST1 copy                                    :   8409.5 MB/s
 NEON STP fill                                        :  19529.1 MB/s (0.8%)
 NEON STNP fill                                       :  19544.8 MB/s (0.3%)
 ARM LDP/STP copy                                     :   8397.4 MB/s
 ARM STP fill                                         :  19553.9 MB/s
 ARM STNP fill                                        :  19529.9 MB/s

==========================================================================
== Framebuffer read tests.                                              ==
==                                                                      ==
== Many ARM devices use a part of the system memory as the framebuffer, ==
== typically mapped as uncached but with write-combining enabled.       ==
== Writes to such framebuffers are quite fast, but reads are much       ==
== slower and very sensitive to the alignment and the selection of      ==
== CPU instructions which are used for accessing memory.                ==
==                                                                      ==
== Many x86 systems allocate the framebuffer in the GPU memory,         ==
== accessible for the CPU via a relatively slow PCI-E bus. Moreover,    ==
== PCI-E is asymmetric and handles reads a lot worse than writes.       ==
==                                                                      ==
== If uncached framebuffer reads are reasonably fast (at least 100 MB/s ==
== or preferably >300 MB/s), then using the shadow framebuffer layer    ==
== is not necessary in Xorg DDX drivers, resulting in a nice overall    ==
== performance improvement. For example, the xf86-video-fbturbo DDX     ==
== uses this trick.                                                     ==
==========================================================================

 NEON LDP/STP copy (from framebuffer)                 :   1661.2 MB/s
 NEON LDP/STP 2-pass copy (from framebuffer)          :   1341.1 MB/s
 NEON LD1/ST1 copy (from framebuffer)                 :   1660.8 MB/s
 NEON LD1/ST1 2-pass copy (from framebuffer)          :   1340.9 MB/s
 ARM LDP/STP copy (from framebuffer)                  :    757.7 MB/s
 ARM LDP/STP 2-pass copy (from framebuffer)           :    745.0 MB/s

==========================================================================
== Memory latency test                                                  ==
==                                                                      ==
== Average time is measured for random memory accesses in the buffers   ==
== of different sizes. The larger is the buffer, the more significant   ==
== are relative contributions of TLB, L1/L2 cache misses and SDRAM      ==
== accesses. For extremely large buffer sizes we are expecting to see   ==
== page table walk with several requests to SDRAM for almost every      ==
== memory access (though 64MiB is not nearly large enough to experience ==
== this effect to its fullest).                                         ==
==                                                                      ==
== Note 1: All the numbers are representing extra time, which needs to  ==
==         be added to L1 cache latency. The cycle timings for L1 cache ==
==         latency can be usually found in the processor documentation. ==
== Note 2: Dual random read means that we are simultaneously performing ==
==         two independent memory accesses at a time. In the case if    ==
==         the memory subsystem can't handle multiple outstanding       ==
==         requests, dual random read has the same timings as two       ==
==         single reads performed one after another.                    ==
==========================================================================

block size : single random read / dual random read, [MADV_NOHUGEPAGE]
      1024 :    0.0 ns          /     0.0 ns 
      2048 :    0.0 ns          /     0.0 ns 
      4096 :    0.0 ns          /     0.0 ns 
      8192 :    0.0 ns          /     0.0 ns 
     16384 :    0.0 ns          /     0.0 ns 
     32768 :    0.0 ns          /     0.0 ns 
     65536 :    0.9 ns          /     1.3 ns 
    131072 :    1.5 ns          /     1.8 ns 
    262144 :    1.9 ns          /     2.2 ns 
    524288 :    8.4 ns          /    12.4 ns 
   1048576 :   12.6 ns          /    16.0 ns 
   2097152 :   14.9 ns          /    17.1 ns 
   4194304 :   59.4 ns          /    88.8 ns 
   8388608 :   99.1 ns          /   131.0 ns 
  16777216 :  121.0 ns          /   145.0 ns 
  33554432 :  138.5 ns          /   157.4 ns 
  67108864 :  151.5 ns          /   168.1 ns 

block size : single random read / dual random read, [MADV_HUGEPAGE]
      1024 :    0.0 ns          /     0.0 ns 
      2048 :    0.0 ns          /     0.0 ns 
      4096 :    0.0 ns          /     0.0 ns 
      8192 :    0.0 ns          /     0.0 ns 
     16384 :    0.0 ns          /     0.0 ns 
     32768 :    0.0 ns          /     0.0 ns 
     65536 :    1.2 ns          /     1.7 ns 
    131072 :    1.6 ns          /     2.0 ns 
    262144 :    1.9 ns          /     2.2 ns 
    524288 :    8.3 ns          /    11.8 ns 
   1048576 :   11.7 ns          /    14.8 ns 
   2097152 :   13.5 ns          /    15.7 ns 
   4194304 :   58.2 ns          /    87.2 ns 
   8388608 :   98.0 ns          /   129.3 ns 
  16777216 :  118.3 ns          /   142.3 ns 
  33554432 :  128.5 ns          /   146.8 ns 
  67108864 :  133.5 ns          /   148.5 ns 

Core to Core Memory Latency

Image

sbc-bench results

Run sbc-bench and paste a link to the results here: https://github.com/ThomasKaiser/sbc-bench/blob/master/results/reviews/Radxa-Dragon-Q6A.md (linking to existing results, as my run was similar, and most numbers were within 1%)

Phoronix Test Suite

Results from pi-general-benchmark.sh:

  • pts/encode-mp3: 10.467 sec
  • pts/x264 4K: 3.63 fps
  • pts/x264 1080p: 22.93 fps
  • pts/phpbench: 543386
  • pts/build-linux-kernel (defconfig): 3554.437 sec

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