DxOmark tested the A7rV sensor and concluded:
As the latest iteration, the Sony A7R V has too many improvements to list here, but even looking at the headline features, the fifth-generation model with its new AF system and improved sensor shift is certainly a potent and hugely capable camera. The adoption of the same full-frame 61.2 MP BSI CMOS sensor as its predecessor however wasn’t entirely unexpected. While there are a few differences in the sensor output in terms of color depth and dynamic range at various ISO settings, the modifications are marginal. At $3,899/€ 4,500 body only, the price has crept upwards from the Sony A7R IV at launch, but that’s not unexpected in these turbulent times. As the most refined and accomplished in the series, the Sony A7R V model remains a compelling choice at this level.