GPU Comparison
Select up to 2 GPUs to analyze their pricing, performance, and specifications side-by-side.
Market Value Leader
Arc B580 is the clear winner, offering 91.1% better value than Radeon RX 6600 XT.
On raw speed the Arc B580 comes out significantly faster — about 22% ahead of the Radeon RX 6600 XT. It also wins on performance-per-dollar, making it the cleaner choice when you can afford it.
Maximum Capacity Reached. Remove a model to add another. (2/2)
Arc B580 vs Radeon RX 6600 XT: In-Depth Breakdown
Performance: Arc B580 vs Radeon RX 6600 XT
The Arc B580 is significantly faster, around 22% ahead of the Radeon RX 6600 XT. Both cards sit in the same broad class, well suited to 1080p.
Price & Value
The Arc B580 currently lists from $571 AUD, $322 AUD less than the Radeon RX 6600 XT at $893 AUD. Because it's both faster and competitively priced, the Arc B580 wins on performance-per-dollar by about 91%. The Arc B580 still sits about $323 AUD above its $248 AUD MSRP. The Radeon RX 6600 XT still sits about $514 AUD above its $379 AUD MSRP.
Power & Efficiency
On power, the Radeon RX 6600 XT is the gentler choice at 160W versus 190W. The Arc B580 is more efficient per watt because it's faster, but its higher 190W draw means more heat and a bigger PSU. Its more modern Battlemage architecture on a TSMC N5 process is part of why it does more with each watt.
VRAM & Future-Proofing
The Arc B580 carries 12GB versus 8GB on the Radeon RX 6600 XT. 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 6600 XT (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 6600 XT 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 6600 XT?
The Arc B580 is the all-round winner here — it's faster and the better value, so buy it if it fits your budget. Only consider the Radeon RX 6600 XT if you find it at a steep discount.
Frequently Asked Questions
Is the Arc B580 better than the Radeon RX 6600 XT?
Which is better for 4K gaming, the Arc B580 or the Radeon RX 6600 XT?
Is the Radeon RX 6600 XT worth the extra $322 AUD over the Arc B580?
Does the Arc B580 have enough VRAM advantage to matter?
Technical Specifications Comparison
Architecture & Cores
| Specification | Arc B580 | Radeon RX 6600 XT |
|---|---|---|
| Architecture | Battlemage | RDNA 2 |
| Process Node | TSMC N5 | TSMC N7 |
| CUDA Cores (Shading Units / Stream Processors) | 2,560✓ | 2,048 |
| Ray Tracing Cores | 20 | 32✓ |
| Tensor / AI Cores | 160 | — |
Clock Speeds
| Specification | Arc B580 | Radeon RX 6600 XT |
|---|---|---|
| Base Clock | 2,670 MHz✓ | 1,968 MHz |
| Boost Clock | 2,850 MHz✓ | 2,589 MHz |
Memory
| Specification | Arc B580 | Radeon RX 6600 XT |
|---|---|---|
| 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 6600 XT |
|---|---|---|
| Interface | PCIe 4.0 x8 | PCIe 4.0 x8 |
| TDP | 190 W | 160 W✓ |
| Power Connectors | 1x 8-pin | 1x 8-pin |
| Released | Dec 2024 | Jul 2021 |
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