Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Intel - Arc B770 | NVIDIA - GeForce RTX 5070 |
|---|---|---|
| CUDA / Stream cores | 4096 | 6144 |
| Ray tracing cores | 32 | 48 |
| VRAM | 16 GB | 12 GB |
| Memory bus | 256 bit | 192 bit |
| TDP | 225 W | 250 W |
| 3DMark Time Spy | 13500 | 16800 |
Between the Arc B770 and GeForce RTX 5070, the Arc B770 comes out ahead in vram / memory bus, while the GeForce RTX 5070 wins on cuda / stream cores / ray tracing cores. Overall, the Arc B770 scores 64.2 and the GeForce RTX 5070 scores 63.9 on our Mars Score.
Which should you buy?
These two are nearly even on the Mars Score (64.2 vs 63.9). 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 GeForce RTX 5070 if you care most about cuda / stream cores / ray tracing cores. Its strongest claims are cuda / stream cores, ray tracing cores, 3dmark time spy, among others. The single most decisive one: CUDA / Stream cores — 50.00% more. 6144 vs 4096.
There are no meaningful ties on the headline specs — every popular-comparison metric has a winner.
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 NVIDIA - GeForce RTX 5070?
Intel - Arc B770 leads the current Mars Score by 0.3 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 NVIDIA - GeForce RTX 5070 if…
NVIDIA - GeForce RTX 5070 has the measurable edge on cuda cores, 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 — 25.00 W less. 225 vs 250.
- ▲Boost clock — 15.45% more. 2900 MHz vs 2512 MHz.
Why NVIDIA - GeForce RTX 5070 wins
- ▲CUDA / Stream cores — 50.00% more. 6144 vs 4096.
- ▲Ray tracing cores — 50.00% more. 48 vs 32.
- ▲3DMark Time Spy — 24.44% more. 16800 vs 13500.
- ▲Has DLSS.
Spec comparison
Core
| Spec | Intel - Arc B770 | NVIDIA - GeForce RTX 5070 |
|---|---|---|
| Chipset | BMG-G31 | GB205 |
| Base clockⓘ | 2400 MHzlead | 2325 MHz |
| Boost clockⓘ | 2900 MHzlead | 2512 MHz |
| CUDA / Stream coresⓘ | 4096 | 6144lead |
| Ray tracing coresⓘ | 32 | 48lead |
Memory
| Spec | Intel - Arc B770 | NVIDIA - GeForce RTX 5070 |
|---|---|---|
| VRAMⓘ | 16 GBlead | 12 GB |
| VRAM typeⓘ | GDDR6 | GDDR7lead |
| Memory busⓘ | 256 bitlead | 192 bit |
Power & Form
| Spec | Intel - Arc B770 | NVIDIA - GeForce RTX 5070 |
|---|---|---|
| TDPⓘ | 225 Wlead | 250 W |
| Recommended PSUⓘ | 650 W | 650 W |
| Length | 280 mm | 267 mmlead |
| Slot size | 2-slot | 2-slot |
Benchmarks
| Spec | Intel - Arc B770 | NVIDIA - GeForce RTX 5070 |
|---|---|---|
| 3DMark Time Spyⓘ | 13500 | 16800lead |
| DLSSⓘ | false | truelead |
| FSRⓘ | truelead | false |
Frequently asked
Which has more VRAM, Arc B770 or GeForce RTX 5070?+
Arc B770 ships with 16GB GDDR6 vs 12GB.
Which scores higher in 3DMark Time Spy, Arc B770 or GeForce RTX 5070?+
GeForce RTX 5070 scores 16800 vs 13500.
Which draws less power, Arc B770 or GeForce RTX 5070?+
Arc B770 draws 225W TDP vs 250W.