GPU Comparison
Select up to 2 GPUs to analyze their pricing, performance, and specifications side-by-side.
Market Value Leader
Only verified data for Arc B580 is available. Benchmarks for other models are currently being processed.
On raw speed the Arc B580 comes out noticeably faster — about 16% ahead of the Radeon RX 6600M.
Maximum Capacity Reached. Remove a model to add another. (2/2)
Arc B580 vs Radeon RX 6600M: In-Depth Breakdown
Performance: Arc B580 vs Radeon RX 6600M
The Arc B580 is noticeably faster, around 16% ahead of the Radeon RX 6600M. Both cards sit in the same broad class, well suited to 1080p.
Power & Efficiency
At 100W against 190W, the Radeon RX 6600M is both the lower-power and the more efficient card, making it the easier build to cool and power.
VRAM & Future-Proofing
The Arc B580 carries 12GB versus 8GB on the Radeon RX 6600M. The extra 4GB helps at 4K, with high-resolution texture packs, and for content-creation or local-AI workloads that exhaust smaller buffers.
Generation & Longevity
The Arc B580 is roughly 3 years newer than the Radeon RX 6600M (Battlemage vs RDNA 2), so it generally benefits from a more modern architecture and longer driver-support runway.
Features & Ecosystem
Beyond raw numbers, the Arc B580 brings Intel XeSS upscaling and AV1 encoding, while the Radeon RX 6600M offers AMD FSR upscaling and strong rasterization value. If you lean on upscaling or ray tracing, that ecosystem difference can matter as much as the frame-rate gap.
Which should you buy: Arc B580 or Radeon RX 6600M?
The Arc B580 is the faster card by about 16%. 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 Arc B580 better than the Radeon RX 6600M?
Which is better for 4K gaming, the Arc B580 or the Radeon RX 6600M?
Does the Arc B580 have enough VRAM advantage to matter?
Technical Specifications Comparison
Architecture & Cores
| Specification | Arc B580 | Radeon RX 6600M |
|---|---|---|
| Architecture | Battlemage | RDNA 2 |
| Process Node | TSMC N5 | TSMC 7nm |
| CUDA Cores (Shading Units / Stream Processors) | 2,560✓ | 1,792 |
| Ray Tracing Cores | 20 | 28✓ |
| Tensor / AI Cores | 160✓ | 56 |
Clock Speeds
| Specification | Arc B580 | Radeon RX 6600M |
|---|---|---|
| Base Clock | 2,670 MHz✓ | 2,068 MHz |
| Boost Clock | 2,850 MHz✓ | 2,177 MHz |
Memory
| Specification | Arc B580 | Radeon RX 6600M |
|---|---|---|
| VRAM Capacity | 12 GB✓ | 8 GB |
| Memory Type | GDDR6 | GDDR6 |
| Memory Bus | 192-bit✓ | 128-bit |
| Memory Speed | 19 Gbps✓ | 16 Gbps |
| Bandwidth | 456 GB/s✓ | 256 GB/s |
Connectivity & Power
| Specification | Arc B580 | Radeon RX 6600M |
|---|---|---|
| Interface | PCIe 4.0 x8 | PCIe 4.0 x8 |
| TDP | 190 W | 100 W✓ |
| Power Connectors | 1x 8-pin | None |
| Released | Dec 2024 | Jun 2021 |
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