Sapphire Radeon RX 7900 XTX NITRO+ 24GB GDDR6 Silver
ASUS GeForce RTX 5080 ROG Astral 16GB GDDR7
Buy the Sapphire if you want proven 4K gaming performance, a massive 24GB VRAM buffer for longevity, and a card that owners consistently praise for quiet, cool operation.
The ASUS ROG Astral might appeal to someone chasing the newest architecture and GDDR7, but with zero real-world validation from buyers, you're essentially beta testing a $2,000+ card.
Principais diferenças
- VRAM is the headline: 24GB GDDR6 on the Sapphire versus 16GB GDDR7 on the ASUS. The ASUS has faster memory, but 16GB is already tight for 4K textures in some titles, and that gap will only widen.
- Raw compute favors the Sapphire hard. FP16 comes in at 122.8 TFLOPS versus 56.3 on the ASUS, and FP32 is 61.4 versus 56.3. The Sapphire's 96 RT cores also beat the ASUS's 84.
- The ASUS wins on PassMark G3D (35,666 vs 31,427) and GPU Compute (19,602 vs 17,736), so it's not a total wash. But synthetic benchmarks don't tell the whole story when the card has a single 1-star review.
- Power draw is 339W on the Sapphire versus 360W on the ASUS. Neither is efficient, but the Sapphire gives you more performance per watt while still demanding a solid 850W+ PSU.
- Customer sentiment is the real kicker. The Sapphire sits at 4.4/5 from 688 reviews with owners raving about quiet operation and cool temps. The ASUS has one review and it's a 1.0. That's not a sample size, that's a warning sign.
O que os compradores dizem
Sapphire Radeon RX 7900 XTX NITRO+ 24GB GDDR6 Silver
A Sapphire Nitro+ RX 7900 XTX recebe grandes elogios pelo seu desempenho impressionante em 4K, operação silenciosa e refrigeração confiável. A maioria dos compradores verificados destaca seu tamanho compacto em comparação com outras placas de ponta, os generosos 24 GB de VRAM e a ausência de ruído da bobina. Alguns revisores mencionam um ruído ocasional da bobina e alto consumo de energia, mas o sentimento geral é extremamente positivo.
Prós
- Excelente desempenho em jogos 4K
- Operação muito silenciosa
- Refrigeração eficiente com baixas temperaturas
- Tamanho compacto para uma placa de ponta
- 24 GB de VRAM para longevidade
Contras
- Alto consumo de energia
- Ruído ocasional da bobina
- Fonte de alimentação de 850W+ necessária
- Design grande de 4 slots
ASUS GeForce RTX 5080 ROG Astral 16GB GDDR7
Sem feedback de clientes ainda
Pontuações
Especificações
| Sapphire Radeon RX 7900 XTX NITRO+ | ASUS GeForce RTX 5080 ROG Astral | |
|---|---|---|
| Chipset | ||
| GPU Chipset | Radeon RX 7900 XTX | GeForce RTX 5080 |
| Brand | AMD | NVIDIA |
| Architecture | RDNA 3 | Blackwell |
| Class | consumer | consumer |
| Process | 5 | 5 |
| Memory | ||
| VRAM | 24 GB★ | 16 GB |
| Memory Type | GDDR6 | GDDR7★ |
| Memory Bus | ||
| Bandwidth | ||
| Compute | ||
| CUDA Cores | Sem dados | |
| Stream Processors | Sem dados | |
| Tensor Cores | ||
| RT Cores | 96★ | 84 |
| Base Clock | ||
| Boost Clock | ||
| FP16 TFLOPS | ||
| FP32 TFLOPS | 61.38999938964844★ | 56.279998779296875 |
| Performance | ||
| PassMark G3D | ||
| GPU Compute | ||
| Power & Cooling | ||
| TDP | 339★ | 360 |
| Recommended PSU | 800★ | 850 |
| Power Connectors | 3 x 8-Pin | 1 x 16-pin |
| Cooler | Triple Fan | Triple Fan |
| Fans | 3 | 4★ |
| Connectivity | ||
| Interface | PCI Express 4.0 x16 | PCI Express 5.0 x16 |
| DisplayPort | 2 | 3★ |
| HDMI | 2 | 2 |
| USB-C | 1★ | — |
| Max Displays | 4 | 4 |
| Max Resolution | 7680 x 4320 | 8K |
| Physical | ||
| Length | 320 | 300★ |
| Slot Width | 4 | 4 |
| Form Factor | ATX | Full Height |
| Weight | 1.00 kg★ | 4.88 kg |
| Features | ||
| Ray Tracing | ✓ | ✓ |
| Upscaling | FSR 3.1 | DLSS 4 |
| AV1 Encode | ✓★ | ✗ |
| VR Ready | — | ✓★ |
| DirectX | 12 Ultimate | 12 |
| RGB | ✓ | ✓ |
Prós e Contras
Sapphire Radeon RX 7900 XTX NITRO+ 24GB GDDR6 Silver
- Strong connectivity (99th percentile)99th %ile
- Strong rt (96th percentile)96th %ile
- Strong compute (95th percentile)95th %ile
- Strong ai (95th percentile)95th %ile
- Below average affordability (16th percentile)16th %ile
ASUS GeForce RTX 5080 ROG Astral 16GB GDDR7
- Strong rt (95th percentile)95th %ile
- Strong raster (94th percentile)94th %ile
- Strong compute (93rd percentile)93rd %ile
- Strong connectivity (89th percentile)89th %ile
- Below average social proof (0th percentile)0th %ile
- Below average affordability (5th percentile)5th %ile
Preços
Sapphire Radeon RX 7900 XTX NITRO+ 24GB GDDR6 Silver
ASUS GeForce RTX 5080 ROG Astral 16GB GDDR7
No current pricing available
Veredito
Scores 96 overall, wins 8 of 8 usage categories and 12 of 40 specs.
