Guidance to replace my raspberry pi 4

[rsmartapps]

have run some tests with the i5 9600k and the outcome of them are:
Logs for the ffmpeg command

Code:

Stream mapping:
  Stream #0:0 (hevc) -> setparams:default (graph 0)
  Stream #0:4 (pgssub) -> scale:default (graph 0)
  overlay_qsv:default (graph 0) -> Stream #0:0 (h264_qsv)
  Stream #0:1 -> #0:1 (truehd (native) -> aac (libfdk_aac))
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[hevc @ 0x5e54d1fb3a00] First slice in a frame missing.
    Last message repeated 6 times
[hevc @ 0x5e54d4186a80] First slice in a frame missing.
    Last message repeated 6 times
[matroska,webm @ 0x5e54d1023e80] sub2video: using 3840x2160 canvas
libva info: VA-API version 1.21.0
libva info: Trying to open /usr/lib/jellyfin-ffmpeg/lib/dri/iHD_drv_video.so
libva info: Found init function __vaDriverInit_1_21
libva info: va_openDriver() returns 0
[hls @ 0x5e54d1f7b000] Opening '/config/transcodes/d7693e97cf190e14c49d75c93d079a3d-1.mp4' for writing
Output #0, hls, to '/config/transcodes/d7693e97cf190e14c49d75c93d079a3d.m3u8':
  Metadata:
    encoder        : Lavf60.3.100
  Stream #0:0: Video: h264, qsv(tv, bt709, progressive), 3840x2160 [SAR 1:1 DAR 16:9], q=2-31, 122467 kb/s, 23.98 fps, 24k tbn
    Metadata:
      encoder        : Lavc60.3.100 h264_qsv
    Side data:
      cpb: bitrate max/min/avg: 122467815/0/122467815 buffer size: 244935630 vbv_delay: N/A
  Stream #0:1: Audio: aac, 48000 Hz, stereo, s16, 256 kb/s (default)
    Metadata:
      encoder        : Lavc60.3.100 libfdk_aac

the igpu usage running the command was around 75%  the Render and video engines

Code:

Intel Coffelake (Gen9)
1060MHz
11% RC6
8.3/24.5 W
650 irqs/s
IMC reads 8200 MiB/s
IMC writes: 3100 MiB/s