RTX2070 SUPER (Driver Version: 457.30) returns VideoCodec version 8.1

I’m trying to use VideoCodec 11.0 API on RTX 2070 super + Driver 457.30.

The ReadMe’s system requirement is “Windows: Driver version 456.71 or higher”.

However in the function NvEncoder::LoadNvEncApi(), the driver returns 129 at the line, NVENC_API_CALL(NvEncodeAPIGetMaxSupportedVersion(&version));

129 is the number for VideoCodec version 8.1, isn’t it?

Should I use VideoCodec 8.1 on RTX 2070 SUPER (TU104)?

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Are there more details to the reproduction setup than what is already mentioned? Can you confirm driver installation was correct and there is no other driver dll being used in the system than the one installed by 457.30 driver?


Thank you for your reply.
The folloing is the text from “NVIDIA control panel system information”.
Sorry, it’s in japanese.

I beleave I have only one NVIDIA driver on my PC.

NVIDIA システム情報レポートの作成日: 12/09/2020 22:32:12

オペレーティング システム:	Windows 10 Pro, 64-bit
DirectX バージョン:	12.0 
GPU プロセッサ:		GeForce RTX 2070 SUPER
ドライバーのバージョン:		457.30
ドライバー タイプ:		DCH
Direct3D API バージョン:	12
Direct3D 機能レベル:		12_1
CUDA コア:		2560 
コア クロック:		1785 MHz 
メモリ データ レート:		14.00 Gbps
メモリ インターフェイス:		256 ビット 
メモリのバンド幅:		448.06 GB/秒
グラフィックス メモリの使用可能容量:	24522 MB
専用ビデオ メモリ:		8192 MB GDDR6
システム ビデオ メモリ:		0 MB
共有システム メモリ:		16330 MB
ビデオ BIOS のバージョン:
IRQ:			Not used
バス:			PCI Express x16 Gen3
デバイス ID:		10DE 1E84 38601462
パーツ番号:			G186 0012


nvui.dll		NVIDIA User Experience Driver Component
nvxdplcy.dll		NVIDIA User Experience Driver Component
nvxdbat.dll		NVIDIA User Experience Driver Component
nvxdapix.dll		NVIDIA User Experience Driver Component
NVCPL.DLL		NVIDIA User Experience Driver Component
nvCplUIR.dll		8.1.940.0		NVIDIA Control Panel
nvCplUI.exe		8.1.940.0		NVIDIA Control Panel
nvDevToolSR.dll		NVIDIA Licensing Server
nvDevToolS.dll		NVIDIA 3D Settings Server
nvWSSR.dll		NVIDIA Workstation Server
nvWSS.dll		NVIDIA Workstation Server
nvLicensingS.dll		NVIDIA Licensing Server
nvViTvSR.dll		NVIDIA Video Server
nvViTvS.dll		NVIDIA Video Server
nvDispSR.dll		NVIDIA Display Server
nvDispS.dll		NVIDIA Display Server
PhysX		09.19.0218		NVIDIA PhysX
NVCUDA64.DLL		NVIDIA CUDA 11.1.114 driver
nvGameSR.dll		NVIDIA 3D Settings Server
nvGameS.dll		NVIDIA 3D Settings Server