Intel Arc A770: Performance Comparison of PCIE 3.0 vs PCIE 4.0 - Is PCIE4 really necessary?
79Welcome back to another video people ;) this time we will be testing if PCIE4 does give any performance boost on Intel Arc A770...
A few words about PCIE3 and PCIE4... PCIe is the primary interface used to connect the graphics card to the motherboard. PCIe 3.0 was introduced in 2010 and offered a bandwidth of 8GT/s per lane. PCIe 4.0 was released in 2017 and increased the bandwidth to 16GT/s per lane. This means that PCIe 4.0 has twice the bandwidth of PCIe 3.0, making it a potential game-changer for graphics card performance.
But does it really?!
To test the performance difference of PCIE3 and PCIE4 on the Intel Arc A770 graphics card, I ran two specific benchmark tests and a game.
The results of the benchmark tests were as expected... On PCIe 3.0, the Intel Arc A770 delivered excellent gaming performance, with smooth frame time in Returnal with high-quality graphics. However, when I switched to PCIe 4.0, the performance only increased by a 1-2% so replacing your AMD lets say PCIE3 board with a PCIE4 won't actually be a good idea in my opinion and same goes for intel (new boards have PCIE4 anyways).
Save the money and use it to upgrade something else ;)
Superposition Score on PCIE4: https://gcdnb.pbrd.co/images/qleyvSu5s1Wv.png?o=1
PCIE3 Score (better)?: https://gcdnb.pbrd.co/images/uPjzu1rPuHPO.png?o=1
TEST BENCH SPECS:
GPU: Intel Arc A770 Limited Edition 16GB
CPU: AMD Ryzen 5950x - REBAR ON
RAM: 2x16 3600CL16 @ 3800CL16
MB: x570 Gigabyte Aorus Extreme