Arc B580 vs Radeon RX 6800
Performance-wise the Radeon RX 6800 is out front, dramatically faster, roughly 41% up on the Arc B580. It is also the stronger value pick here, so it's the easy recommendation if your budget allows.
Maximum Capacity Reached. Remove a model to add another. (2/2)
Radeon RX 6800 vs Arc B580: In-Depth Breakdown
Performance: Radeon RX 6800 vs Arc B580
The Radeon RX 6800 is dramatically faster, around 41% ahead of the Arc B580. That gap is enough to move it up a tier: the Radeon RX 6800 is comfortable at 1440p, while the Arc B580 is better matched to 1080p.
Price & Value
Right now the Arc B580 starts at $360 CAD against $500 CAD for the Radeon RX 6800. Because it's both faster and competitively priced, the Radeon RX 6800 wins on performance-per-dollar. The Arc B580 still sits about $112 CAD above its $248 CAD MSRP. The Radeon RX 6800 is trading below its $579 CAD MSRP — a genuine deal.
Power & Efficiency
The Arc B580 is the lighter draw at 190W against the Radeon RX 6800's 250W, making it the easier card to power and cool. The Radeon RX 6800 draws more in absolute terms but squeezes out more performance per watt, so budget for a beefier PSU if you go that route.
VRAM & Future-Proofing
The Radeon RX 6800's 16GB (vs 12GB on the Arc B580) gives it more room for 4K textures and memory-hungry creative or AI workloads.
Generation & Longevity
The Arc B580 is roughly 4 years newer than the Radeon RX 6800 (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 6800 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 6800?
The Radeon RX 6800 is the all-round winner here — it's faster and the better value, so buy it if it fits your budget. Only consider the Arc B580 if you find it at a steep discount.
Frequently Asked Questions
Is the Radeon RX 6800 better than the Arc B580?
Which is better for 4K gaming, the Arc B580 or the Radeon RX 6800?
Is the Radeon RX 6800 worth the extra $140 CAD over the Arc B580?
Does the Radeon RX 6800 have enough VRAM advantage to matter?
Which should you buy: Arc B580 or Radeon RX 6800?
Technical Specifications Comparison
Architecture & Cores
| Specification | Arc B580 | Radeon RX 6800 |
|---|---|---|
| Architecture | Battlemage | RDNA 2 |
| Process Node | TSMC N5 | TSMC N7 |
| CUDA Cores (Shading Units / Stream Processors) | 2,560 | 3,840✓ |
| Ray Tracing Cores | 20 | 60✓ |
| Tensor / AI Cores | 160 | — |
Clock Speeds
| Specification | Arc B580 | Radeon RX 6800 |
|---|---|---|
| Base Clock | 2,670 MHz✓ | 1,700 MHz |
| Boost Clock | 2,850 MHz✓ | 2,105 MHz |
Memory
| Specification | Arc B580 | Radeon RX 6800 |
|---|---|---|
| VRAM Capacity | 12 GB | 16 GB✓ |
| Memory Type | GDDR6 | GDDR6 |
| Memory Bus | 192-bit | 256-bit✓ |
| Memory Speed | 19 Gbps✓ | 16 Gbps |
| Bandwidth | 456 GB/s | 512 GB/s✓ |
Connectivity & Power
| Specification | Arc B580 | Radeon RX 6800 |
|---|---|---|
| Interface | PCIe 4.0 x8 | PCIe 4.0 x16 |
| TDP | 190 W✓ | 250 W |
| Power Connectors | 1x 8-pin | 2x 8-pin |
| Released | Dec 2024 | Nov 2020 |
Related Reading
Why Amazon Is Flooded With Cheap, Off-Brand RX 580 Graphics Cards
Brands like AISURIX, Peladn, and MLLSE sell an 8GB RX 580 for under $100. Here's the truth about ex-mining silicon, the 'RX 580 2048SP' trick, and whether you should buy one.
Intel Arc A770 in 2026: The Used-Market 16GB Card — What Still Works, and What Still Breaks
The A770 is discontinued Alchemist silicon with a 16GB frame buffer and a 256-bit bus. Four years of driver work fixed a lot — and left some things broken. An honest read on who should buy one used, and who absolutely should not.
The 1080p Value Champion: AMD Radeon RX 7600 Review
In a market dominated by high-priced flagships, the Radeon RX 7600 remains a steadfast hero for 1080p gamers. Is it still the best value pick?
Intel Arc Alchemist in 2026: Is a Used A580, A750 or A770 Still Worth Buying?
Every Arc Alchemist card is discontinued, and Battlemage replaced them. So what does a used A580, A750 or A770 still buy you — and at what price does it beat a new Arc B580? An honest retrospective on Intel's first discrete GPUs.
GPU Market Guide: How to Find the Best Value
With the arrival of new RTX series, RDNA 4, and Battlemage cards, how do you choose the right GPU today? A deep dive into trends and pricing.
Intel Arc A580: The Reality of Budget Gaming in 2026
Between aggressive price cuts and the arrival of the Battlemage generation, is the Arc A580 still a realistic choice for 1080p gaming?