Arc B580
GeForce RTX 3080 Mobile
Arc B580 vs GeForce RTX 3080 Mobile Performance Spectrum
About G3D Mark
G3D Mark is a standard benchmark that measures graphics performance in real-world gaming scenarios. It simplifies comparing cards from different brands, where higher scores directly correlate with better fps and smoother gaming experiences.
Arc B580 vs GeForce RTX 3080 Mobile FPS Benchmarks
Predicted gaming performance across popular games. Tested paired with Ryzen 7 9800X3D to isolate GPU performance.
Search any supported game below to compare 1080p FPS for both components.
Path of Exile 2
Counter-Strike 2
League of Legends
Valorant
Among Us
Apex Legends
ARC Raiders
Baldur's Gate 3
Call of Duty: Black Ops 6
Arc B580 vs GeForce RTX 3080 Mobile: Pros, Cons & Final Verdict
See where each GPU makes more sense in practice: raw FPS, VRAM, features, power draw, pricing, and long-term headroom.
Arc B580
2024Why buy it
- ✅6.1% more average FPS across 50 tracked games in our benchmark data.
- ✅Delivers 100+% more G3D Mark for each dollar spent, at 64.2 vs 0 G3D/$ ($249 MSRP vs Unknown MSRP).
- ✅50% more VRAM for high-resolution textures and newer games (12 GB vs 8 GB).
Trade-offs
- ❌No DLSS support; it relies on Upscaling support instead.
- ❌65.2% higher power demand at 190W vs 115W.
GeForce RTX 3080 Mobile
2021Why buy it
- ✅Access to DLSS 2 Super Resolution (2020).
- ✅Draws 115W instead of 190W, a 75W reduction.
Trade-offs
- ❌Lower average FPS than Arc B580 across 50 tracked games in our benchmark data.
- ❌Less VRAM, with 8 GB vs 12 GB for high-resolution textures and newer games.
- ❌Lower G3D Mark per dollar, at 0 vs 64.2 G3D/$ (Unknown MSRP vs $249 MSRP).
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Arc B580 vs GeForce RTX 3080 Mobile Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.
Arc B580
The Arc B580 is manufactured by Intel. It was released in December 13 2024. It features the Xe2 architecture. The core clock ranges from 2670 MHz to 2670 MHz. It has 2560 shading units. The thermal design power (TDP) is 190W. Manufactured using 5 nm process technology. It features 20 dedicated ray tracing cores for enhanced lighting effects. G3D Mark benchmark score: 15,977 points. Launch price was $249.
GeForce RTX 3080 Mobile
The GeForce RTX 3080 Mobile is manufactured by NVIDIA. It was released in January 12 2021. It features the Ampere architecture. The core clock ranges from 1110 MHz to 1545 MHz. It has 6144 shading units. The thermal design power (TDP) is 115W. Manufactured using 8 nm process technology. It features 48 dedicated ray tracing cores for enhanced lighting effects. G3D Mark benchmark score: 16,214 points.
Graphics Performance
The Arc B580 scores 15,977 and the GeForce RTX 3080 Mobile reaches 16,214 in the G3D Mark benchmark — just a 1.5% difference, making them near-identical in rasterization performance. The Arc B580 is built on Xe2 while the GeForce RTX 3080 Mobile uses Ampere, both on 5 nm vs 8 nm. Shader units: 2,560 (Arc B580) vs 6,144 (GeForce RTX 3080 Mobile). Raw compute: 13.67 TFLOPS (Arc B580) vs 18.98 TFLOPS (GeForce RTX 3080 Mobile). Boost clocks: 2670 MHz vs 1545 MHz. Ray tracing: 20 RT cores (Arc B580) vs 48 (GeForce RTX 3080 Mobile) with 160 Tensor cores vs 192.
| Feature | Arc B580 | GeForce RTX 3080 Mobile |
|---|---|---|
| G3D Mark Score | 15,977 | 16,214+1% |
| Architecture | Xe2 | Ampere |
| Process Node | 5 nm | 8 nm |
| Shading Units | 2560 | 6144+140% |
| Compute (TFLOPS) | 13.67 TFLOPS | 18.98 TFLOPS+39% |
| Boost Clock | 2670 MHz+73% | 1545 MHz |
| ROPs | 80 | 96+20% |
| TMUs | 160 | 192+20% |
| L1 Cache | 5 MB | 6 MB+20% |
| L2 Cache | 18 MB+350% | 4 MB |
| Ray Tracing Cores | 20 | 48+140% |
| Tensor Cores | 160 | 192+20% |
Advanced Features (DLSS/FSR)
The GeForce RTX 3080 Mobile gets NVIDIA DLSS, which still tends to look cleaner in motion. The Arc B580 leans on FSR, which is flexible and widely supported, but usually a bit rougher at the same settings.
| Feature | Arc B580 | GeForce RTX 3080 Mobile |
|---|---|---|
| Upscaling Tech | Upscaling support | DLSS 2 Super Resolution |
| Frame Generation | Not Supported | Not Supported |
| Ray Reconstruction | No | No |
| Low Latency | Standard | NVIDIA Reflex |
Video Memory (VRAM)
The Arc B580 has 12 GB of VRAM, while the GeForce RTX 3080 Mobile carries 8 GB. Arc B580 gives you 50% more memory capacity, which matters more once you move into heavier textures, mods, or higher resolutions. Memory bandwidth: 456 GB/s (Arc B580) vs 448 GB/s (GeForce RTX 3080 Mobile) — a 1.8% advantage for the Arc B580. Memory bus width is 192-bit on the Arc B580 and 256-bit on the GeForce RTX 3080 Mobile. L2 Cache: 18 MB (Arc B580) vs 4 MB (GeForce RTX 3080 Mobile) — the Arc B580 has significantly larger on-die cache to reduce VRAM reliance.
| Feature | Arc B580 | GeForce RTX 3080 Mobile |
|---|---|---|
| VRAM Capacity | 12 GB+50% | 8 GB |
| Memory Type | GDDR6 | GDDR6 |
| Memory Bandwidth | 456 GB/s+2% | 448 GB/s |
| Bus Width | 192-bit | 256-bit+33% |
| L2 Cache | 18 MB+350% | 4 MB |
Display & API Support
DirectX support: 12 Ultimate (Arc B580) vs 12.2 (GeForce RTX 3080 Mobile). Vulkan: 1.3 vs 1.2. OpenGL: 4.6 vs 4.6. Maximum simultaneous displays: 4 vs 4.
| Feature | Arc B580 | GeForce RTX 3080 Mobile |
|---|---|---|
| DirectX | 12 Ultimate | 12.2+2% |
| Vulkan | 1.3+8% | 1.2 |
| OpenGL | 4.6 | 4.6 |
| Max Displays | 4 | 4 |
Media & Encoding
Hardware encoder: Xe2 Media Engine (Arc B580) vs 7th Gen NVENC (GeForce RTX 3080 Mobile). Decoder: Xe2 Media Engine vs 5th Gen NVDEC. Supported codecs: AV1,H.264,H.265/HEVC (Arc B580) vs MPEG-2,H.264,HEVC,VP9,AV1 (Decode) (GeForce RTX 3080 Mobile).
| Feature | Arc B580 | GeForce RTX 3080 Mobile |
|---|---|---|
| Encoder | Xe2 Media Engine | 7th Gen NVENC |
| Decoder | Xe2 Media Engine | 5th Gen NVDEC |
| Codecs | AV1,H.264,H.265/HEVC | MPEG-2,H.264,HEVC,VP9,AV1 (Decode) |
Power & Dimensions
The Arc B580 draws 190W versus the GeForce RTX 3080 Mobile's 115W — a 49.2% difference. The GeForce RTX 3080 Mobile is more power-efficient. Recommended PSU: 600W (Arc B580) vs 650W (GeForce RTX 3080 Mobile). Power connectors: 8-pin vs Mobile. Card length: 272mm vs 0mm, occupying 2 vs 0 slots. Typical load temperature: 70°C vs 80°C.
| Feature | Arc B580 | GeForce RTX 3080 Mobile |
|---|---|---|
| TDP | 190W | 115W-39% |
| Recommended PSU | 600W-8% | 650W |
| Power Connector | 8-pin | Mobile |
| Length | 272mm | 0mm |
| Height | 115mm | 0mm |
| Slots | 2 | 0-100% |
| Temp (Load) | 70°C-13% | 80°C |
| Perf/Watt | 84.1 | 141.0+68% |
Value Analysis
The newer card here is Arc B580 (2024 vs 2021).
| Feature | Arc B580 | GeForce RTX 3080 Mobile |
|---|---|---|
| MSRP | $249 | — |
| Codename | BMG-G21 | GA104 |
| Release | December 13 2024 | January 12 2021 |
| Ranking | #132 | #127 |
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