The performance is clearly faster than the old RX Vega 8 thanks to the higher clock speed and faster main memory (if used). More information is available in our dedicated article about the Raven Ridge architecture. The Vega architecture offers some improvements over the Polaris generation and now supports DirectX 12 Feature Level 12_1. Compared to the similar Radeon RX Vega 8 in the Raven Ridge generation (Ryzen 2000 Mobile), the GPU is clocked significantly higher (1.750 versus 1.100 MHz Boost, +59%).
The GPU should benefit from fast dual-channel DDR4-3200 RAM (contrary to DDR4-2133 single-channel, which is also possible). The performance depends on the configured TDP (12-25 W at launch), the clocks, the cooling, and the memory configuration). The GPU is based on the Vega architecture (5th generation GCN) and has 8 CUs (= 512 of the 704 shaders) clocked at up to 1,750 MHz (Ryzen 7 4800U) or 2,100 MHz (Ryzen 9 5980HX). It is used for the Ryzen 7 APUs of the Renoir generation (Ryzen 4000 Mobile) and Cezanne (Ryzen 5000 Mobile). The AMD Radeon RX Vega 8 is an integrated GPU for notebooks. Windows 7 and the FirePro software both acknowledge that 4 monitors are connected, but I can't enable the 4th one.AMD Radeon RX Vega 8 (Ryzen 4000/5000) ► remove from comparison So basically, I can only have 3 monitors running at a time. The adapters I'm using are all identical. I know the monitors themselves are fine because I can get any combination of 3 monitors in any combination of 3 ports to work.
I get the same thing if I try to enable the 4th monitor in Windows 7 display settings (just gives me an "Unable to save display settings" error). If I try to extend to it, FirePro software gives me a message that I have to disable one other monitor before I can enable that one. The AMD FirePro software shows a 4th monitor as disabled. The monitors only have DVI and VGA ports, no native DisplayPort connections, so I'm using active displayport -> DVI adapters. I was under the impression that I could run 4 monitors off of this, but I'm wondering if there's something wrong with my combination of adapters.
The FirePro W5100 has 4 DisplayPort outputs, but I can only seem to get any combination of 3 monitors to work (the 4th always just gives a "no signal" message and goes black). Replaced an older system where 4 monitors were working fine. So I have a new HP workstation with an AMD FirePro W5100 card (specs and other details below).
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