{"slug":"rtx-4080-vs-rtx-4090)","question":"RTX 4080 vs RTX 4090","answer":"The RTX 4090 delivers 35% higher TFLOPS and 24GB VRAM vs the 4080's 20.1 TFLOPS and 16GB VRAM, making it superior for 4K gaming and AI workloads, while the 4080 offers better value and power efficiency for 1440p and high-refresh gaming.","answer_curated":true,"verdict":"The RTX 4090 dominates for 4K gaming, content creation, and large-scale AI/ML tasks with 68% more CUDA cores and superior memory, justifying the $400 premium for professionals and enthusiasts. The RTX 4080 is the smart choice for 1440p high-refresh gaming, streaming, and mid-range workstations where its 45% lower power draw and $400 savings matter more than marginal performance gains.","keyDifferences":[{"label":"GPU Memory","winner":"b","entityAValue":"16GB GDDR6X","entityBValue":"24GB GDDR6X"},{"label":"CUDA Cores","winner":"b","entityAValue":"9,728 cores","entityBValue":"16,384 cores"},{"label":"Peak FP32 Performance","winner":"b","entityAValue":"20.1 TFLOPS","entityBValue":"27.6 TFLOPS"},{"label":"Power Consumption","winner":"a","entityAValue":"320W TDP","entityBValue":"575W TDP"},{"label":"MSRP at Launch (USD)","winner":"a","entityAValue":"$1,199","entityBValue":"$1,599"}],"winner":{"slug":"nvidia-geforce-rtx-4090","name":"NVIDIA GeForce RTX 4090"},"confidence":"high","entities":[{"name":"NVIDIA GeForce RTX 4080","slug":"nvidia-geforce-rtx-4080","url":"https://www.aversusb.net/entity/nvidia-geforce-rtx-4080","alternativesUrl":"https://www.aversusb.net/api/v1/alternatives/nvidia-geforce-rtx-4080"},{"name":"NVIDIA GeForce RTX 4090","slug":"nvidia-geforce-rtx-4090","url":"https://www.aversusb.net/entity/nvidia-geforce-rtx-4090","alternativesUrl":"https://www.aversusb.net/api/v1/alternatives/nvidia-geforce-rtx-4090"}],"faqs":[{"question":"Is the RTX 4090 worth $400 more than the RTX 4080?","answer":"It depends on your use case. For 1440p gaming, the performance delta is only 15-20%, making the 4080 better value. For 4K gaming, the 4090 delivers 40% higher framerates, justifying the premium. For AI/ML work, the 24GB VRAM and 68% more CUDA cores make the 4090 essential—the 4080's 16GB becomes a significant bottleneck for large language models and batch processing."},{"question":"Can the RTX 4080 handle 4K gaming at 120fps?","answer":"Only at medium settings and with DLSS 3 enabled. Native 4K at 120fps Ultra is unrealistic on the 4080; expect 80-100fps. The 4090 reaches 140-160fps at Ultra 4K with DLSS 3, making it the true 4K flagship. For competitive 4K gaming, the 4090 is the practical choice."},{"question":"Which GPU is better for AI model training and inference?","answer":"The RTX 4090 is substantially better for both. Its 24GB VRAM vs 16GB allows loading larger models entirely on-GPU; its 27.6 TFLOPS vs 20.1 TFLOPS means 37% faster training iterations. For training large language models (70B+ parameters), the 4080's 16GB is often insufficient without gradient checkpointing. For inference, the 4090's memory bandwidth (1,008 GB/s) supports higher batch sizes."}],"attribution":{"source":"A Versus B","url":"https://www.aversusb.net/compare/rtx-4080-vs-rtx-4090)","license":"CC BY 4.0","citationFormat":"According to A Versus B (https://www.aversusb.net/compare/rtx-4080-vs-rtx-4090)), The RTX 4090 delivers 35% higher TFLOPS and 24GB VRAM vs the 4080's 20.1 TFLOPS and 16GB VRAM, making it superior for 4K gaming and AI workloads, while the 4080 offers better value and power efficienc","dateModified":"2026-07-05T03:55:15.369Z"},"relatedQuestionsUrl":"https://www.aversusb.net/api/faq/rtx-4080-vs-rtx-4090)","relatedComparisonsUrl":"https://www.aversusb.net/api/v1/related/rtx-4080-vs-rtx-4090)","knowledgeGraphUrl":"https://www.aversusb.net/api/knowledge-graph/rtx-4080-vs-rtx-4090)","claimReviewSchema":{"@context":"https://schema.org","@type":"ClaimReview","@id":"https://www.aversusb.net/compare/rtx-4080-vs-rtx-4090)#claimreview","url":"https://www.aversusb.net/compare/rtx-4080-vs-rtx-4090)","inLanguage":"en-US","isAccessibleForFree":true,"conditionsOfAccess":"Free","claimReviewed":"RTX 4080 vs RTX 4090","reviewBody":"The RTX 4090 delivers 35% higher TFLOPS and 24GB VRAM vs the 4080's 20.1 TFLOPS and 16GB VRAM, making it superior for 4K gaming and AI workloads, while the 4080 offers better value and power efficiency for 1440p and high-refresh gaming.","datePublished":"2026-07-05T03:55:14.877Z","dateModified":"2026-07-05T03:55:15.369Z","reviewRating":{"@type":"Rating","ratingValue":5,"worstRating":1,"bestRating":5,"alternateName":"High Confidence"},"author":{"@type":"Organization","@id":"https://www.aversusb.net/#organization","name":"A Versus B","url":"https://www.aversusb.net"},"itemReviewed":{"@type":"WebPage","@id":"https://www.aversusb.net/compare/rtx-4080-vs-rtx-4090)","url":"https://www.aversusb.net/compare/rtx-4080-vs-rtx-4090)","name":"RTX 4080 vs RTX 4090","inLanguage":"en-US"}}}