主な違い

• The MSI has 16GB of GDDR7 on a 256-bit bus with 896 GB/s bandwidth, while the Intel makes do with 12GB of GDDR6 on a 192-bit bus at 504 GB/s. That's a massive memory advantage for the 5070 Ti.
• PassMark G3D scores tell the story: 32,373 for the MSI vs 16,019 for the Intel. The 5070 Ti is roughly twice as fast in real-world GPU benchmarks.
• Ray tracing is night and day. The MSI scores 96/100 for ray tracing with 70 RT cores, while the Intel manages 49/100 with just 20 RT cores. If you care about RT effects, the B580 will struggle.
• The Intel actually wins on clock speeds (2670 MHz boost vs 2482 MHz) and FP16 compute, but that doesn't translate to better gaming performance. The MSI's wider memory bus and more cores dominate where it counts.
• Both cards sit at 4.6/5 stars from owners, but the MSI has way more reviews (906 vs 281). Users praise the MSI's cooling and quiet operation, while B580 owners love the value but note driver support is still maturing.