docs: Language clarifications on hardware encoder performance.

source/docs/en/latest/technical/video-nvenc.markdown

@@ -18,8 +18,8 @@ Nvidia Nvenc
 
 ## Supported Hardware and Configurations 
 
-- Nvidia GeForce GTX Pascal (1050+) and RTX Turing (1650+, 2060+) series GPU or better
+- Nvidia GeForce GTX Pascal (1050+), GTX/RTX Turing (1650+, 2060+) or Ampere (3060+) series GPU or better
-- Nvidia Graphics Driver 418.81 or later
+- Nvidia Graphics Driver 456.71 or later
 - Windows 10
 - Experimental Linux support is available in HandBrake’s command line interface
 
@@ -31,9 +31,19 @@ Support for the Nvidia Nvenc encoder is enabled in preferences on the video tab.
 
 ## Performance
 
-Only video encoding is performed by the hardware encoder. Every stage prior to and after video encoding including decoding, filters, audio/video sync, audio encoding, muxing, etc., is performed by the CPU. As a result, it is normal to have high (even 100%) CPU utilisation during encodes.
+HandBrake supports the Nvidia NVEnc NVEnc encoder but does not support the NVDec (decoder).
 
-It is common, particularly on lower-end hardware, for the CPU to be a bottleneck for the hardware video encoder. To minimize this effect, disable any filters that you do not require.
+The CPU will still be used for:
+- Video decoding 
+- All video filters
+- Audio encoding 
+- HandBrake's engine, A/V sync etc
+- Subtitles
+- Muxing
+
+These operations all happen in parallel as the job progresses. As such, it is normal to see high (or even 100%) CPU utilisation even when using QuickSync.
+
+It is also common, particularly on lower-end or older hardware, for the CPU to be a bottleneck which will cause lower than expected performance. To minimize this effect, disable any filters that you do not require.
 
 ## Advanced options
 

source/docs/en/latest/technical/video-qsv.markdown

@@ -16,9 +16,10 @@ License_URL:     https://handbrake.fr/docs/license.html
 Intel QuickSync Video
 =====================
 
-## Supported hardware
+## Supported hardware and Configurations 
 
 - Intel Skylake (6th Generation Core) CPU or later with Intel HD Graphics or better
+
 - Windows 10
 - Linux
 - FreeBSD
@@ -33,9 +34,20 @@ Support for the Intel QSV encoder is enabled in preferences on the video tab. If
 
 ## Performance
 
-Only video encoding is performed by the hardware encoder. Every stage prior to and after video encoding including decoding, filters, audio/video sync, audio encoding, muxing, etc., is performed by the CPU. As a result, it is normal to have high (even 100%) CPU utilisation during encodes.
+HandBrake supports both QuickSync video encode and decode. 
+
+The CPU will still be used for:
+- Video decoding (if QuickSync decode is disabled or your source is in a format which is not supported by the QuickSync hardware)
+- Most video filters
+- Audio encoding 
+- HandBrake's engine, A/V sync etc
+- Subtitles
+- Muxing
+
+These operations all happen in parallel as the job progresses. As such, it is normal to see high (or even 100%) CPU utilisation even when using QuickSync.
+
+It is also common, particularly on lower-end or older hardware, for the CPU to be a bottleneck which will cause lower than expected performance. To minimize this effect, disable any filters that you do not require.
 
-It is common, particularly on lower-end hardware, for the CPU to be a bottleneck for the hardware video encoder. To minimize this effect, disable any filters that you do not require.
 
 ## Advanced options
 

source/docs/en/latest/technical/video-vce.markdown

@@ -16,10 +16,11 @@ License_URL:     https://handbrake.fr/docs/license.html
 AMD VCE
 =======
 
-## Supported hardware 
+## Supported hardware and Configurations 
 
 - AMD Radeon RX 400, 500, Vega/II, Navi series GPU or better
-- Ubuntu Linux 18.04.3 or later, Windows 10
+- Ubuntu Linux 20.04 or later
+- Windows 10
 
 Please note, these are not hard limits. Hardware encoding via VCE *might* work on older series GPUs and older operating systems, but this is not officially supported.
 
@@ -31,9 +32,19 @@ Support for the AMD VCE encoder is enabled in preferences on the video tab. If y
 
 ## Performance
 
-Only video encoding is performed by the hardware encoder. Every stage prior to and after video encoding including decoding, filters, audio/video sync, audio encoding, muxing, etc., is performed by the CPU. As a result, it is normal to have high (even 100%) CPU utilisation during encodes.
+HandBrake supports the Nvidia AMD VCE encoder but does not support the VCN (decoder).
 
-It is common, particularly on lower-end hardware, for the CPU to be a bottleneck for the hardware video encoder. To minimize this effect, disable any filters that you do not require.
+The CPU will still be used for:
+- Video decoding 
+- All video filters
+- Audio encoding 
+- HandBrake's engine, A/V sync etc
+- Subtitles
+- Muxing
+
+These operations all happen in parallel as the job progresses. As such, it is normal to see high (or even 100%) CPU utilisation even when using QuickSync.
+
+It is also common, particularly on lower-end or older hardware, for the CPU to be a bottleneck which will cause lower than expected performance. To minimize this effect, disable any filters that you do not require.
 
 ## Advanced options