GPU Comparison
Select up to 2 GPUs to analyze their pricing, performance, and specifications side-by-side.
Market Value Leader
Only verified data for Radeon R9 390 is available. Benchmarks for other models are currently being processed.
The Radeon R9 390 is dramatically faster than the Radeon R9 380X, leading by roughly 67% in our performance index.
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Comparable or lower specs
Radeon R9 390 vs Radeon R9 380X: In-Depth Breakdown
Performance: Radeon R9 390 vs Radeon R9 380X
The Radeon R9 390 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 390 packs 2,560 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 390 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 390 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 390'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 390?
The Radeon R9 390 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.
Frequently Asked Questions
Is the Radeon R9 390 better than the Radeon R9 380X?
Which is better for 4K gaming, the Radeon R9 380X or the Radeon R9 390?
Does the Radeon R9 390 have enough VRAM advantage to matter?
Technical Specifications Comparison
Architecture & Cores
| Specification | Radeon R9 380X | Radeon R9 390 |
|---|---|---|
| Architecture | GCN 3.0 | GCN 2.0 |
| Process Node | TSMC 28nm | TSMC 28nm |
| CUDA Cores (Stream Processors / Stream Processors) | 2,048 | 2,560✓ |
Clock Speeds
| Specification | Radeon R9 380X | Radeon R9 390 |
|---|---|---|
| Base Clock | 970 MHz | 1,000 MHz✓ |
| Boost Clock | 970 MHz | 1,000 MHz✓ |
Memory
| Specification | Radeon R9 380X | Radeon R9 390 |
|---|---|---|
| VRAM Capacity | 4 GB | 8 GB✓ |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bus | 256-bit | 512-bit✓ |
| Memory Speed | 5.7 Gbps | 6 Gbps✓ |
| Bandwidth | 182.4 GB/s | 384 GB/s✓ |
Connectivity & Power
| Specification | Radeon R9 380X | Radeon R9 390 |
|---|---|---|
| Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| TDP | 190 W✓ | 275 W |
| Power Connectors | 2x 6-pin | 1x 6-pin + 1x 8-pin |
| Released | Nov 2015 | Jun 2015 |