Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Intel - Arc B570 | Intel - Arc B580 |
|---|---|---|
| TDP | 150 W | 190 W |
| VRAM | 10 GB | 12 GB |
| Memory bus | 160 bit | 192 bit |
| CUDA / Stream cores | 2304 | 2560 |
| Ray tracing cores | 18 | 20 |
| 3DMark Time Spy | 8800 | 9400 |
Between the Arc B570 and Arc B580, the Arc B570 comes out ahead in tdp, while the Arc B580 wins on vram / memory bus. Overall, the Arc B570 scores 57.8 and the Arc B580 scores 59.2 on our Mars Score.
Which should you buy?
These two are nearly even on the Mars Score (57.8 vs 59.2). The decision is not about overall quality — both clear the bar — it is about which specific trade-offs fit your use.
Pick the Arc B570 if you care most about tdp. The biggest gaps in its favor are tdp. The single most decisive one: TDP — 40.00 W less. 150 vs 190.
Pick the Arc B580 if you push the hardware — gaming, on-device AI, heavy multitasking — and the extra compute headroom is worth the trade-offs. Its strongest claims are vram, memory bus, cuda / stream cores, among others. The single most decisive one: VRAM — 20.00% more. 12 GB vs 10 GB.
Both ship with comparable dlss, so those specs do not separate the two — focus on the differences below.
Bottom line: there is no wrong answer here — match the spec advantages to how you actually use the product. The Mars Score parity says both are well-rounded; the differences are about trade-offs, not quality.
Which should you buy: Intel - Arc B570 or Intel - Arc B580?
Intel - Arc B580 leads the current Mars Score by 1.4 points.The more useful decision is the trade-off behind that result: compare vram, cuda / stream cores, boost clock, tdp against the way you will actually use the product.
Choose Intel - Arc B570 if…
Intel - Arc B570 has the measurable edge on tdp w.
Choose Intel - Arc B580 if…
Intel - Arc B580 has the measurable edge on vram gb, memory bus bit, cuda cores.
This is a structured comparison of the published catalog values. It is not a claim of identical real-world performance across every workload; use the linked spec drill-downs and methodology page to inspect the inputs.
Why Intel - Arc B570 wins
- ▲TDP — 40.00 W less. 150 vs 190.
Why Intel - Arc B580 wins
- ▲VRAM — 20.00% more. 12 GB vs 10 GB.
- ▲Memory bus — 20.00% more. 192 bit vs 160 bit.
- ▲CUDA / Stream cores — 11.11% more. 2560 vs 2304.
- ▲Ray tracing cores — 11.11% more. 20 vs 18.
- ▲3DMark Time Spy — 6.82% more. 9400 vs 8800.
- ▲Boost clock — 3.64% more. 2850 MHz vs 2750 MHz.
Spec comparison
Core
| Spec | Intel - Arc B570 | Intel - Arc B580 |
|---|---|---|
| Chipset | BMG-G21 | BMG-G21 |
| Base clockⓘ | 2500 MHz | 2670 MHzlead |
| Boost clockⓘ | 2750 MHz | 2850 MHzlead |
| CUDA / Stream coresⓘ | 2304 | 2560lead |
| Ray tracing coresⓘ | 18 | 20lead |
Memory
| Spec | Intel - Arc B570 | Intel - Arc B580 |
|---|---|---|
| VRAMⓘ | 10 GB | 12 GBlead |
| VRAM typeⓘ | GDDR6 | GDDR6 |
| Memory busⓘ | 160 bit | 192 bitlead |
Power & Form
| Spec | Intel - Arc B570 | Intel - Arc B580 |
|---|---|---|
| TDPⓘ | 150 Wlead | 190 W |
| Recommended PSUⓘ | 550 Wlead | 600 W |
| Length | 270 mmlead | 272 mm |
| Slot size | 2-slot | 2-slot |
Benchmarks
| Spec | Intel - Arc B570 | Intel - Arc B580 |
|---|---|---|
| 3DMark Time Spyⓘ | 8800 | 9400lead |
| DLSSⓘ | false | false |
| FSRⓘ | true | true |
Frequently asked
Which has more VRAM, Arc B570 or Arc B580?+
Arc B580 ships with 12GB GDDR6 vs 10GB.
Which scores higher in 3DMark Time Spy, Arc B570 or Arc B580?+
Arc B580 scores 9400 vs 8800.
Which draws less power, Arc B570 or Arc B580?+
Arc B570 draws 150W TDP vs 190W.