This site contains the results of performance tests of UltraGrid.

The following table compares performance of individual cards. The results are measured as end-to-end frame-delay, i.e. the number of frames sent before the reciever outputs the original frame.

Setup:

• Testing machine: hd2
• Reference machine: hd4 with BlackMagic Decklink HD Extreme
• For the test, we used 1080i HD video at 29.97Fps.

Card	send	recieve
DVS Centaurus II	5	3
BlackMagic DeckLink HD Extreme	3.75	3.75
BlackMagic DeckLink 4K Extreme	3.5	3
BlackMagic Decklink Quad	4.5	4
BlackMagic Decklink Intensity PRO	4.5	4
BlackMagic Decklink Intensity	4.5	4.5
Deltacast 3G	4.5	3
OpenGL	-	2.5

Setup:

• Testing machine: hd7
• Reference machine: hd4 with BlackMagic Decklink HD Extreme
• For the test, we used 1080i HD video at 29.97Fps.

Card	send	recieve
AJA Kona 3G	4	3.5
DeckLink HD Pro (Quicktime)	4.5	5.5
DeckLink HD Pro (native API)	4.5	4
OpenGL (with VSync)	-	2.25
OpenGL (without VSync)	-	1.75

Setup:

• Testing machine: hd7
• Reference machine: hd4 with BlackMagic Decklink HD Extreme
• For the test, we used 1080i HD video at 29.97Fps.

Card	send	recieve
BlackMagic DeckLink HD Extreme	4.5	3.5
BlackMagic Decklink Quad	4.5	4
BlackMagic Decklink Intensity PRO	4.5	3.5
BlackMagic Decklink Intensity	4.5	4
Deltacast 3G	4	3

Below you can see the encoding performance of individual compression modules. We used a video with increasing framerate to pin down the biggest achievable that still offers fluent video experience.

Encoder (setting)	res	FPS	Content	HW	Ver
cineform	2160p	65	NZ2500	i7-4960X	1.6
gpujpeg (90)	2160p	157	NZ2500	5960X+9	1.3
libx264	2160p	43	NZ	i7-4960X
libx265	2160p	16	NZ	AMD 3970X	1.8.5
libsvt_hevc	2160p	89	NZ	AMD 3970X	1.8.5
libvpx	2160p	28	NZ	i7-4960X
mjpeg	2160p	65	NZ	i7-4960X
cineform - R10k	2160p	42	NZ2500	i7-4960X	1.6
cineform - R12L	2160p	25	NZ2500	i7-4960X	1.6
gpujpeg (90)	2160p	150	NZ2500	kypo	1.3
gpujpeg (90)	2160p	137	NZ2500	hd12	1.3
gpujpeg (90)	2160p	201	NZ2500	5960X+B	1.3
gpujpeg (90:8)	2160p	207	NZ2500	5960X+B	1.3
gpujpeg (90:16)	2160p	200	NZ2500	5960X+B	1.3
gpujpeg (90)	2160p	178+146	NZ2500	5960X+B9	1.3
gpujpeg (90)	2160p	92	NZ2500	bunny	1.3
gpujpeg (90)	2160p	96+96	NZ2500	bunnyX2	1.3
gpujpeg (90)	2160p	130	NZ2500	hdd1	1.3
libsvt_hevc	2160p	44	NZ	i9-9820X	1.8.5
libx264	2160p	32	NZ	i7-980X
libx264	1080p	4	NZ	VIA Nano	1.5d
mjpeg	1080p	10	NZ	VIA Nano	1.5d

Legend:

• kypo
  i7-4770S, NV GTX 980, 4x8G DDR3@1600 (kypowall0)
• hd12
  i7-4960X, 32 GB 1866 MHz DDR3, NV GTX 960
• 5960X+9
  i7-5960X, DDR4@2166, NV GTX 960
• 5960X+B
  i7-5960X, DDR4@2166, GeForce GTX Titan Black
• 5960X+B9
  i7-5960X, DDR4@2166, GeForce GTX Titan Black + GTX 960
• bunny
  2x Xeon E5-2660 v2, [email protected], GeForce GTX Titan
• bunnyX2
  2x Xeon E5-2660 v2, [email protected], 2 x GeForce GTX Titan
• hdd1
  i7-4930K, 780Ti,2x4GB DDR3@1333
• VIA Nano
  Via Nano U2250, 1 GB ram<
• 1.3
  v1.3-140-g08dba83
• 1.5d
  1.5 (rev 3fa1a0d7)
• NZ
  New Zealand UYVY
• NZ2500
  New Zealand frame 2500 UYVY

We also measured the latency added by the compression modules. For the tests 1080p@30fps was used, compressing at hd7 running Ubuntu and decompression done by hd2

module	end-to-end latency
uncompressed	3.75
cuda_dxt	3.75 (+0)
RTDXT:DXT1	6 (+2)
RTDXT:DXT5	5.5 (+1.75)
JPEG:90:0	4 (+0.25)
JPEG:97:0	4 (+0.25)
H.264	5 (+1.25)

Here you can see the measured bandwidth including overhead with 9000B Ethernet frames. Uncompressed signal was 8-bit YUV422.

module	1080i@30	2k@30	4k (4096 × 2160)@25fps
uncompressed	980 Mbps	1504 Mbps	3489 Mbps
DXT1	245 Mbps	376 Mbps	870 Mbps
DXT5 YCoCg	489 Mbps	752 Mbps
JPEG:90	80 Mbps	85 Mbps	160 Mbps
H.264	22 Mbps	22 Mbps	60 Mbps
cineform:quality=4 (default)			580 Mbps
cineform:quality=1			300 Mbps