GPU Comparison
Select up to 2 GPUs to analyze their pricing, performance, and specifications side-by-side.
The Radeon R9 390X is dramatically faster than the Radeon R9 380X, leading by roughly 67% in our performance index.
Maximum Capacity Reached. Remove a model to add another. (2/2)
Radeon R9 390X vs Radeon R9 380X: In-Depth Breakdown
Performance: Radeon R9 390X vs Radeon R9 380X
The Radeon R9 390X is dramatically faster, around 67% ahead of the Radeon R9 380X. Both cards sit in the same broad class, well suited to entry-level 1080p. The Radeon R9 390X packs 2,816 stream processors versus 2,048 on the Radeon R9 380X.
Power & Efficiency
The Radeon R9 380X pulls less power (190W vs 275W), so it's the easier card to cool and the lighter load on your PSU. The faster Radeon R9 390X draws more overall but extracts more performance from each watt — plan for a sturdier power supply if you pick it.
VRAM & Future-Proofing
With 8GB against 4GB, the Radeon R9 390X has more headroom for 4K textures and memory-hungry creative/AI tasks where the Radeon R9 380X's 4GB can fall short. The Radeon R9 390X's memory is also faster — 384 GB/s versus 182 GB/s (512-bit vs 256-bit bus) — which helps feed the GPU at 4K and with heavy textures.
Which should you buy: Radeon R9 380X or Radeon R9 390X?
The Radeon R9 390X is the faster card by about 67%. With live pricing limited for this pair, base your decision on the spec differences above — particularly VRAM and power draw — and check current stock before buying.