Key Differences

• VRAM is the headline: 16GB GDDR7 on the Gigabyte vs 24GB GDDR6 on the Sapphire. The Gigabyte has faster memory tech, but 8GB less of it. At 4K with high-res textures, that 24GB buffer matters a lot more than the GDDR7 speed bump.
• Raw compute is not even close. The Sapphire puts out 61.4 FP32 TFLOPS and 122.8 FP16 TFLOPS vs the Gigabyte's 43.9 for both. That's a 40% FP32 gap and nearly triple the FP16 throughput, which is huge for AI inference and compute-heavy tasks.
• Gaming scores flip depending on resolution. The Gigabyte scores 99 at 1080p and 98 at 1440p vs the Sapphire's 89 and 90. But at 4K, the Sapphire's wider 384-bit bus and 960 GB/s bandwidth pull ahead where the Gigabyte's 256-bit bus and 896 GB/s start to choke.
• Power draw is a real trade-off. Sapphire owners consistently mention needing an 850W+ PSU minimum, while the Gigabyte's newer architecture is far more efficient. If you're on a 650W or 750W unit, the Gigabyte is the only realistic option without a PSU upgrade.
• Price gap is significant. The Gigabyte sits around $430 while the Sapphire is roughly $3,099. That's a 7x price difference. The Sapphire is not 7x the card for most people, but it's the only one of the two that can handle 4K and heavy compute without breaking a sweat.