Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Intel - Arc B770 | AMD - Radeon RX 7700 XT |
|---|---|---|
| Ray tracing cores | 32 | 54 |
| VRAM | 16 GB | 12 GB |
| Memory bus | 256 bit | 192 bit |
| TDP | 225 W | 245 W |
| CUDA / Stream cores | 4096 | 3456 |
| Boost clock | 2900 MHz | 2544 MHz |
Between the Arc B770 and Radeon RX 7700 XT, the Arc B770 comes out ahead in vram / memory bus, while the Radeon RX 7700 XT wins on ray tracing cores / 3dmark time spy. Overall, the Arc B770 scores 64.2 and the Radeon RX 7700 XT scores 61.6 on our Mars Score.
Which should you buy?
These two are nearly even on the Mars Score (64.2 vs 61.6). The decision is not about overall quality — both clear the bar — it is about which specific trade-offs fit your use.
Pick the Arc B770 if you push the hardware — gaming, on-device AI, heavy multitasking — and the extra compute headroom is worth the trade-offs. The biggest gaps in its favor are vram, memory bus, tdp, among others. The single most decisive one: VRAM — 33.33% more. 16 GB vs 12 GB.
Pick the Radeon RX 7700 XT if you care most about ray tracing cores / 3dmark time spy. Its strongest claims are ray tracing cores, 3dmark time spy. The single most decisive one: Ray tracing cores — 68.75% more. 54 vs 32.
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 B770 or AMD - Radeon RX 7700 XT?
Intel - Arc B770 leads the current Mars Score by 2.6 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 B770 if…
Intel - Arc B770 has the measurable edge on vram gb, memory bus bit, tdp w.
Choose AMD - Radeon RX 7700 XT if…
AMD - Radeon RX 7700 XT has the measurable edge on ray tracing cores, timespy score.
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 B770 wins
- ▲VRAM — 33.33% more. 16 GB vs 12 GB.
- ▲Memory bus — 33.33% more. 256 bit vs 192 bit.
- ▲TDP — 20.00 W less. 225 vs 245.
- ▲CUDA / Stream cores — 18.52% more. 4096 vs 3456.
- ▲Boost clock — 13.99% more. 2900 MHz vs 2544 MHz.
Why AMD - Radeon RX 7700 XT wins
- ▲Ray tracing cores — 68.75% more. 54 vs 32.
- ▲3DMark Time Spy — 9.63% more. 14800 vs 13500.
Spec comparison
Core
| Spec | Intel - Arc B770 | AMD - Radeon RX 7700 XT |
|---|---|---|
| Chipset | BMG-G31 | Navi 32 |
| Base clockⓘ | 2400 MHzlead | 1700 MHz |
| Boost clockⓘ | 2900 MHzlead | 2544 MHz |
| CUDA / Stream coresⓘ | 4096lead | 3456 |
| Ray tracing coresⓘ | 32 | 54lead |
Memory
| Spec | Intel - Arc B770 | AMD - Radeon RX 7700 XT |
|---|---|---|
| VRAMⓘ | 16 GBlead | 12 GB |
| VRAM typeⓘ | GDDR6 | GDDR6 |
| Memory busⓘ | 256 bitlead | 192 bit |
Power & Form
| Spec | Intel - Arc B770 | AMD - Radeon RX 7700 XT |
|---|---|---|
| TDPⓘ | 225 Wlead | 245 W |
| Recommended PSUⓘ | 650 Wlead | 700 W |
| Length | 280 mm | 267 mmlead |
| Slot size | 2-slot | 2.5-slot |
Benchmarks
| Spec | Intel - Arc B770 | AMD - Radeon RX 7700 XT |
|---|---|---|
| 3DMark Time Spyⓘ | 13500 | 14800lead |
| DLSSⓘ | false | false |
| FSRⓘ | true | true |
Frequently asked
Which has more VRAM, Arc B770 or Radeon RX 7700 XT?+
Arc B770 ships with 16GB GDDR6 vs 12GB.
Which scores higher in 3DMark Time Spy, Arc B770 or Radeon RX 7700 XT?+
Radeon RX 7700 XT scores 14800 vs 13500.
Which draws less power, Arc B770 or Radeon RX 7700 XT?+
Arc B770 draws 225W TDP vs 245W.