RTX 4090 vs RTX 4080: Which GPU is Better in 2026?
The RTX 4090 delivers 23% higher CUDA core count (16,384 vs 9,728) and 24GB VRAM versus 16GB, making it substantially more powerful for professional workloads and 4K gaming, while the RTX 4080 offers better value at $1,199 versus $1,599 for users who don't need absolute peak performance.
NVIDIA GeForce RTX 4090
Flagship consumer GPU with 24GB VRAM for extreme performance in gaming, AI, and professional workloads
Professional 3D artists, AI researchers, data scientists, video editors, and enthusiasts who demand absolute peak gaming performance regardless of cost.
NVIDIA GeForce RTX 4080
High-end consumer GPU for 4K gaming and professional content creation with 16GB VRAM
Gamers targeting 1440p/4K performance, content creators doing video editing and motion graphics, and professionals who value power efficiency and cost balance.
Quick Answer
AI SummaryThe RTX 4090 delivers 23% higher CUDA core count (16,384 vs 9,728) and 24GB VRAM versus 16GB, making it substantially more powerful for professional workloads and 4K gaming, while the RTX 4080 offers better value at $1,199 versus $1,599 for users who don't need absolute peak performance.
Our Verdict
AI-assistedChoose the RTX 4090 if you're a professional working with 3D rendering, AI model training, or data science, or if you demand maximum 4K gaming performance at high framerates. Choose the RTX 4080 if you want excellent 4K/1440p gaming performance with lower power requirements and cost, making it the smarter choice for most consumer gamers who don't need absolute peak performance.
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Choose NVIDIA GeForce RTX 4090 if
Best pickProfessional 3D artists, AI researchers, data scientists, video editors, and enthusiasts who demand absolute peak gaming performance regardless of cost.
Choose NVIDIA GeForce RTX 4080 if
Gamers targeting 1440p/4K performance, content creators doing video editing and motion graphics, and professionals who value power efficiency and cost balance.
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Key Differences at a Glance
- CUDA Cores:✓ NVIDIA GeForce RTX 4090 wins(16,384 cores vs 9,728 cores)
- Memory Capacity:✓ NVIDIA GeForce RTX 4090 wins(24GB GDDR6X vs 16GB GDDR6X)
- Memory Bandwidth:✓ NVIDIA GeForce RTX 4090 wins(1,008 GB/s vs 576 GB/s)
Key Facts & Figures
26 numeric metrics compared
| Metric | NVIDIA GeForce RTX 4090 | NVIDIA GeForce RTX 4080 | Ratio |
|---|---|---|---|
| 4K Gaming Performance (Maximum Settings)(FPS) | 120-165 FPS | 85-110 FPS | |
| DLSS 3 Performance Uplift(%) | 2.4-2.8x | 2.0-2.3x | |
| Performance Per Dollar (Peak TFLOPS/USD)(TFLOPS/$) | 0.033 TFLOPS/$ | 0.030 TFLOPS/$ | |
| Memory Bandwidth(GB/s) | 864 GB/s | 576 GB/s | |
| VRAM Capacity(GB) | 24GB GDDR6X | 16GB GDDR6X | |
| Tensor Performance(TFLOPS) | 2,457 TFLOPS (FP32) | 1,456 TFLOPS (FP32) | |
| 4K Gaming Performance(FPS) | 140-160 FPS @ 4K ultra | 95-110 FPS @ 4K ultra | |
| Power Consumption(W) | 450W TDP | 320W TDP | |
| MSRP Price(USD) | $3,199 | $1,599 | |
| Performance-to-Price Ratio(TFLOPS/$) | 0.038 TFLOPS/$ | 0.061 TFLOPS/$ | |
| CUDA Core Count(cores) | 16,384 | 9,728 | |
| Peak FP32 Performance(TFLOPS) | 82.6 TFLOPS | 36.1 TFLOPS | |
| TDP (Thermal Design Power)(W) | 575 | 320 | |
| Launch MSRP(USD) | $2,499 | $1,199 | |
| Typical 4K Gaming FPS (High/Ultra)(fps) | 155 | 110 | |
| Memory Capacity(GB) | 24GB | 16GB | |
| Power Consumption (TDP)(W) | 450W | 320W | |
| 4K Ultra Gaming Performance(fps) | 120-144 fps | 90-110 fps | |
| 1440p Ultra Gaming Performance(fps) | 180-240 fps | 140-165 fps | |
| MSRP Launch Price(USD) | $1,599 | $1,199 | |
| Ray Tracing Performance vs RTX 4080(%) | +28% | Baseline (0%) | |
| CUDA Cores(cores) | 16,384 | 10,240 | |
| TDP (Power Consumption)(W) | 575W | 320W | |
| 4K Ultra Gaming Performance (1440p Ultra average)(fps) | 142 fps | 98 fps | |
| Recommended PSU(W) | 1,200W | 850W | |
| MSRP (USD)(USD) | $1,996 | $1,199 |
Sourced from publicly available data ·
Key Differences
7 attributes compared head-to-head
- 16,384 cores(winner)CUDA Cores9,728 cores
- 24GB GDDR6X(winner)Memory Capacity16GB GDDR6X
- 1,008 GB/s(winner)Memory Bandwidth576 GB/s
- 120-144 fps (Ultra)(winner)4K Gaming Performance (avg fps)90-110 fps (Ultra)
- $1,599MSRP Launch Price$1,199(winner)
- 450WPower Consumption (TDP)320W(winner)
- +28% vs 4080(winner)Ray Tracing Performance UpliftBaseline
- CUDA Cores
NVIDIA GeForce RTX 4090
16,384 cores(winner)
NVIDIA GeForce RTX 4080
9,728 cores
- Memory Capacity
NVIDIA GeForce RTX 4090
24GB GDDR6X(winner)
NVIDIA GeForce RTX 4080
16GB GDDR6X
- Memory Bandwidth
NVIDIA GeForce RTX 4090
1,008 GB/s(winner)
NVIDIA GeForce RTX 4080
576 GB/s
- 4K Gaming Performance (avg fps)
NVIDIA GeForce RTX 4090
120-144 fps (Ultra)(winner)
NVIDIA GeForce RTX 4080
90-110 fps (Ultra)
- MSRP Launch Price
NVIDIA GeForce RTX 4090
$1,599
NVIDIA GeForce RTX 4080
$1,199(winner)
- Power Consumption (TDP)
NVIDIA GeForce RTX 4090
450W
NVIDIA GeForce RTX 4080
320W(winner)
- Ray Tracing Performance Uplift
NVIDIA GeForce RTX 4090
+28% vs 4080(winner)
NVIDIA GeForce RTX 4080
Baseline
Full Comparison
| Attribute | NVIDIA GeForce RTX 4090 | NVIDIA GeForce RTX 4080 |
|---|---|---|
| 4K Gaming Performance (Maximum Settings)(FPS) | 120-165 FPS(winner) | 85-110 FPS |
| DLSS 3 Performance Uplift(%) | 2.4-2.8x(winner) | 2.0-2.3x |
| 4K Gaming Performance(FPS) | 140-160 FPS @ 4K ultra(winner) | 95-110 FPS @ 4K ultra |
| 4K Ultra Gaming Performance(fps) | 120-144 fps(winner) | 90-110 fps |
| 4K Ultra Gaming Performance (1440p Ultra average)(fps) | 142 fps(winner) | 98 fps |
| Performance Per Dollar (Peak TFLOPS/USD)(TFLOPS/$) | 0.033 TFLOPS/$(winner) | 0.030 TFLOPS/$ |
| Performance-to-Price Ratio(TFLOPS/$) | 0.038 TFLOPS/$ | 0.061 TFLOPS/$(winner) |
| Memory Bandwidth(GB/s) | 864 GB/s(winner) | 576 GB/s |
| Memory Capacity(GB) | 24GB(winner) | 16GB |
| CUDA Cores(cores) | 16,384(winner) | 10,240 |
| VRAM Capacity(GB) | 24GB GDDR6X(winner) | 16GB GDDR6X |
| Tensor Performance(TFLOPS) | 2,457 TFLOPS (FP32)(winner) | 1,456 TFLOPS (FP32) |
| Peak FP32 Performance(TFLOPS) | 82.6 TFLOPS(winner) | 36.1 TFLOPS |
| Power Consumption(W) | 450W TDP | 320W TDP(winner) |
| TDP (Power Consumption)(W) | 575W | 320W(winner) |
| Recommended PSU(W) | 1,200W | 850W(winner) |
| MSRP Price(USD) | $3,199 | $1,599(winner) |
| CUDA Core Count(cores) | 16,384(winner) | 9,728 |
| GPU Memory Type | GDDR6X | GDDR6X |
| TDP (Thermal Design Power)(W) | 575 | 320(winner) |
| Launch MSRP(USD) | $2,499 | $1,199(winner) |
| MSRP (USD)(USD) | $1,996 | $1,199(winner) |
| Typical 4K Gaming FPS (High/Ultra)(fps) | 155(winner) | 110 |
| 1440p Ultra Gaming Performance(fps) | 180-240 fps(winner) | 140-165 fps |
| Power Consumption (TDP)(W) | 450W | 320W(winner) |
| MSRP Launch Price(USD) | $1,599 | $1,199(winner) |
| Ray Tracing Performance vs RTX 4080(%) | +28%(winner) | Baseline (0%) |
Pros & Cons
10 pros·4 cons across both
NVIDIA GeForce RTX 4090
Pros
- 16,384 CUDA cores deliver 23% more processing power than RTX 4080
- 24GB GDDR6X memory ideal for large AI models, 3D rendering projects, and video editing
- 1,008 GB/s memory bandwidth enables faster data throughput for professional workflows
- Achieves 120-144 fps in 4K games at Ultra settings with ray tracing enabled
- Best-in-class performance for 3D rendering (Cycles, V-Ray, Arnold) and CUDA acceleration
Cons
- 450W TDP requires high-end 1200W+ power supply, increasing system cost and electricity bills
- $1,599 MSRP makes it 33% more expensive than RTX 4080, limiting accessibility for budget gamers
NVIDIA GeForce RTX 4080
Pros
- 320W TDP allows use with standard 1000W power supplies, reducing system build costs by $100-200
- $1,199 MSRP represents 25% better price-to-performance than RTX 4090 for consumer gaming
- 9,728 CUDA cores sufficient for 90-110 fps in 4K games at Ultra settings with ray tracing
- 16GB GDDR6X memory handles most creative workflows, video editing, and light machine learning tasks
- 576 GB/s memory bandwidth still delivers excellent throughput for most professional applications
Cons
- 24% fewer CUDA cores limit performance in heavily parallel workloads like rendering and AI training
- 16GB VRAM becomes a constraint for very large-scale 3D scenes or language model inference tasks
Frequently Asked Questions
5 questions
For most gamers, no. The RTX 4090 delivers 23% more CUDA cores but costs 33% more. The RTX 4080 achieves 90-110 fps at 4K Ultra, which is already excellent. However, the RTX 4090 is worth it for professionals doing 3D rendering, AI model training, or video editing with large 4K timelines, where the extra 24GB VRAM and bandwidth directly reduce render times by 20-25%.
Resources & Learn More
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