regarding gpu installation

navveenkmr86

New Member
mother board is MSI B650M Gaming WiFi Motherboard, mATX - Supports AMD Ryzen 7000 Series Processors, AM5 - DDR5 Memory Boost 7800+ MHz/OC, PCIe 4.0 x16, M.2 Gen4. (ms7e-30)

i am currently using AMD RYZEN 5 8500G PROCESSOR

I AM USING 2 NVME.2 SSD (1TB+500GB)

2 RAMS - 16GB +32 GB-

I WANT TO INSTALL GPU TO THIS CONFIGURATION WHICH GPU SUITS BETTER (I HEARD BAND WIDTH ISSUES AND PERFORMANCE DOWN).
 

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you’re running an MSI B650M Gaming WiFi (mATX) with a Ryzen 5 8500G, 48 GB DDR5, and two NVMe Gen4 SSDs, and you want to add a GPU but are worried about bandwidth/performance drops due to PCIe lane allocation.


Let’s break this down carefully.




1️⃣ How PCIe lanes work on your setup​


  • Ryzen 5 8500G (AM5, Zen 4, integrated graphics) has:
    • 16 PCIe 4.0 lanes from the CPU for graphics cards.
    • 4 PCIe 4.0 lanes from the CPU for your primary NVMe slot (usually M.2_1).
  • The B650M chipset adds more PCIe lanes (Gen4 and Gen3) for additional devices like M.2_2, SATA, USB, etc.
  • Your two NVMe SSDs will not “steal” bandwidth from the GPU — unless your motherboard manual says a specific slot shares lanes with the PCIe x16 slot (which it usually doesn’t on B650 boards, but worth double-checking in the manual for MS-7E30).



2️⃣ Bandwidth concerns​


  • Your main GPU slot is PCIe 4.0 x16 direct from the CPU — perfect for modern GPUs.
  • Even if a GPU ran at PCIe 4.0 x8, the performance loss on current cards is minimal (1–3% in most cases).
  • NVMe drives usually only share lanes with chipset-controlled slots, not the main GPU slot.

So: No real bottleneck worries for GPU performance in your case.




3️⃣ GPU recommendation for your build​


Since your Ryzen 5 8500G already has iGPU, adding a dedicated GPU will greatly improve gaming/rendering.
The best choice depends on your budget and monitor resolution:


  • 1080p High/Ultra Gaming
    • NVIDIA RTX 3060 Ti / RTX 4060 Ti
    • AMD RX 6600 XT / RX 7600 XT
  • 1440p High/Ultra
    • NVIDIA RTX 4070 / RTX 4070 Super
    • AMD RX 6700 XT / RX 7700 XT
  • 4K or heavy productivity (video editing, 3D)
    • NVIDIA RTX 4070 Ti Super / 4080 Super
    • AMD RX 7900 XT / XTX



4️⃣ Practical advice​


  • Check your power supply wattage and connectors before picking a GPU.
  • Make sure your mATX case has clearance for the card’s length.
  • If you want best compatibility and efficiency, RTX 4070 is a great balance — runs cool, needs only PCIe 4.0 x8/x16, and won’t be bottlenecked.
  • If you want best value, RX 6700 XT or RX 7700 XT is a strong pick.
 
Confused at the question, there's only one slot, you should probably move the EPS power connector behind the mobo tray first.

I'd probably upgrade the CPU at the same time since a lot of articles are saying it only has 4x usable PCIe lanes for that slot, although most reasonable cards would operate 'okay' at a 3.0 8x or 2.0 16x equivalent. What budget are you working with?

@Cannik You sure have a thing for just pasting in ChatGPT replies.
 
you’re running an MSI B650M Gaming WiFi (mATX) with a Ryzen 5 8500G, 48 GB DDR5, and two NVMe Gen4 SSDs, and you want to add a GPU but are worried about bandwidth/performance drops due to PCIe lane allocation.


Let’s break this down carefully.




1️⃣ How PCIe lanes work on your setup​


  • Ryzen 5 8500G (AM5, Zen 4, integrated graphics) has:
    • 16 PCIe 4.0 lanes from the CPU for graphics cards.
    • 4 PCIe 4.0 lanes from the CPU for your primary NVMe slot (usually M.2_1).
  • The B650M chipset adds more PCIe lanes (Gen4 and Gen3) for additional devices like M.2_2, SATA, USB, etc.
  • Your two NVMe SSDs will not “steal” bandwidth from the GPU — unless your motherboard manual says a specific slot shares lanes with the PCIe x16 slot (which it usually doesn’t on B650 boards, but worth double-checking in the manual for MS-7E30).



2️⃣ Bandwidth concerns​


  • Your main GPU slot is PCIe 4.0 x16 direct from the CPU — perfect for modern GPUs.
  • Even if a GPU ran at PCIe 4.0 x8, the performance loss on current cards is minimal (1–3% in most cases).
  • NVMe drives usually only share lanes with chipset-controlled slots, not the main GPU slot.

So: No real bottleneck worries for GPU performance in your case.




3️⃣ GPU recommendation for your build​


Since your Ryzen 5 8500G already has iGPU, adding a dedicated GPU will greatly improve gaming/rendering.
The best choice depends on your budget and monitor resolution:


  • 1080p High/Ultra Gaming
    • NVIDIA RTX 3060 Ti / RTX 4060 Ti
    • AMD RX 6600 XT / RX 7600 XT
  • 1440p High/Ultra
    • NVIDIA RTX 4070 / RTX 4070 Super
    • AMD RX 6700 XT / RX 7700 XT
  • 4K or heavy productivity (video editing, 3D)
    • NVIDIA RTX 4070 Ti Super / 4080 Super
    • AMD RX 7900 XT / XTX



4️⃣ Practical advice​


  • Check your power supply wattage and connectors before picking a GPU.
  • Make sure your mATX case has clearance for the card’s length.
  • If you want best compatibility and efficiency, RTX 4070 is a great balance — runs cool, needs only PCIe 4.0 x8/x16, and won’t be bottlenecked.
  • If you want best value, RX 6700 XT or RX 7700 XT is a strong pick.
thank you my doubt got cleared thanks cannik
 
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