Blender does not have one set of requirements, it has two, because the answer changes completely depending on whether you render on the GPU or the CPU. The Blender PC requirements split right down that line: Cycles flies on an NVIDIA RTX card through OptiX acceleration, while CPU rendering scales with raw core count. Picking the wrong hardware for your engine wastes money.

Quick Answer

For GPU rendering, Blender Cycles uses OptiX on RTX cards and runs roughly 35 percent faster on an RTX 5090 than a 4090. For CPU rendering, performance scales with core count, where a high-core Threadripper pulls ahead. Choose your hardware around the engine you actually use.

GPU vs CPU Rendering in Cycles

Cycles can render on either, but they are not equal in speed or strengths.

GPU rendering through OptiX taps the RT cores on NVIDIA RTX cards and is dramatically faster for most scenes. The catch is VRAM: your scene, textures and geometry must fit in the card's memory, so heavy production scenes demand a card with generous VRAM. CPU rendering is slower but uses system RAM, which is far easier to expand, so it handles enormous scenes that overflow a GPU.

Minimum Specs to Run Blender

Blender itself is light to install. A minimum practical setup is a modern multi-core CPU, 16 GB of system RAM, and a dedicated GPU with at least a few gigabytes of VRAM that supports current graphics APIs. That gets you modelling and light Cycles renders without pain. The workstation graphics card range covers the cards that clear this bar comfortably and then some.

Recommended Specs for Real Production

For serious Cycles work, aim higher: an RTX card with ample VRAM for your scene sizes, 32 GB or more of system RAM, and a fast NVMe SSD for caching and large project files. The OptiX speed on a current RTX card is the single biggest lever for shorter render times. If your scenes routinely exceed GPU memory, lean on a high-core CPU and plenty of RAM instead. To see how these components come together in complete, ready-to-render systems, the PC best sellers at Evetech show the configurations SA creators are buying right now.

Frequently Asked Questions

Should I render Blender on GPU or CPU?

GPU rendering through OptiX is far faster for most scenes, so it is the default choice if your scene fits in VRAM. Switch to CPU rendering for scenes too large for your GPU's memory, since system RAM is easier to expand.

How much VRAM do I need for Blender?

Enough to hold your scene, textures and geometry at once. Light work manages on a few gigabytes, but heavy production scenes with high-resolution textures need a card with generous VRAM to avoid spilling out of memory.

Does more CPU cores help Blender?

For CPU rendering, yes, performance scales closely with core count, which is why high-core Threadripper chips excel there. For GPU rendering the CPU matters less, though it still helps with simulation, modelling and scene prep.

Is an RTX card necessary for Blender?

It is not required to run Blender, but RTX cards unlock OptiX acceleration in Cycles, which is the fastest path to short render times. Non-RTX GPUs and CPUs still render, just more slowly.

How much RAM should a Blender workstation have?

16 GB is a workable minimum, but 32 GB or more is recommended for production scenes, simulations and CPU rendering of large projects. RAM is also your fallback when scenes outgrow GPU memory.

Building a Blender workstation? Match your render engine to the right hardware by comparing the Evetech workstation graphics card range at https://www.evetech.co.za/PC-Components/workstation-graphics-cards-307.