GeForce RTX 4090 vs GeForce RTX 5080
On raw speed the GeForce RTX 4090 comes out marginally faster — about 7% ahead of the GeForce RTX 5080. It also wins on performance-per-dollar, making it the cleaner choice when you can afford it.
Market Value Leader
GeForce RTX 4090 is the clear winner, offering 2711.0% better value than GeForce RTX 5080.
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GeForce RTX 4090 vs GeForce RTX 5080: In-Depth Breakdown
Performance: GeForce RTX 4090 vs GeForce RTX 5080
The GeForce RTX 4090 is marginally faster, around 7% ahead of the GeForce RTX 5080. Both cards sit in the same broad class, well suited to 4K and high-refresh 1440p. The GeForce RTX 4090 packs 16,384 CUDA cores versus 10,752 on the GeForce RTX 5080.
Price & Value
The GeForce RTX 4090 currently lists from $504 SEK, $12,685 SEK less than the GeForce RTX 5080 at $13,189 SEK. Because it's both faster and competitively priced, the GeForce RTX 4090 wins on performance-per-dollar by about 2711%. The GeForce RTX 4090 is trading below its $1,599 SEK MSRP — a genuine deal. The GeForce RTX 5080 still sits about $12,190 SEK above its $999 SEK MSRP.
Power & Efficiency
At 360W against 450W, the GeForce RTX 5080 is both the lower-power and the more efficient card, making it the easier build to cool and power. Its more modern Blackwell architecture on a TSMC 4N process is part of why it does more with each watt.
VRAM & Future-Proofing
The GeForce RTX 4090 carries 24GB versus 16GB on the GeForce RTX 5080. The extra 8GB helps at 4K, with high-resolution texture packs, and for content-creation or local-AI workloads that exhaust smaller buffers.
Generation & Longevity
The GeForce RTX 5080 is roughly 3 years newer than the GeForce RTX 4090 (Blackwell vs Ada Lovelace), so it generally benefits from a more modern architecture and longer driver-support runway.
Which should you buy: GeForce RTX 4090 or GeForce RTX 5080?
The GeForce RTX 4090 is the all-round winner here — it's faster and the better value, so buy it if it fits your budget. Only consider the GeForce RTX 5080 if you find it at a steep discount.
Frequently Asked Questions
Is the GeForce RTX 4090 better than the GeForce RTX 5080?
Which is better for 4K gaming, the GeForce RTX 4090 or the GeForce RTX 5080?
Is the GeForce RTX 5080 worth the extra $12,685 SEK over the GeForce RTX 4090?
Does the GeForce RTX 4090 have enough VRAM advantage to matter?
Which should you buy: GeForce RTX 4090 or GeForce RTX 5080?
Technical Specifications Comparison
Architecture & Cores
| Specification | GeForce RTX 4090 | GeForce RTX 5080 |
|---|---|---|
| Architecture | Ada Lovelace | Blackwell |
| Process Node | TSMC 4N | TSMC 4N |
| CUDA Cores (CUDA Cores / CUDA Cores) | 16,384✓ | 10,752 |
| Ray Tracing Cores | 128✓ | 84 |
| Tensor / AI Cores | 512✓ | 336 |
Clock Speeds
| Specification | GeForce RTX 4090 | GeForce RTX 5080 |
|---|---|---|
| Base Clock | 2,235 MHz | 2,295 MHz✓ |
| Boost Clock | 2,520 MHz | 2,617 MHz✓ |
Memory
| Specification | GeForce RTX 4090 | GeForce RTX 5080 |
|---|---|---|
| VRAM Capacity | 24 GB✓ | 16 GB |
| Memory Type | GDDR6X | GDDR7 |
| Memory Bus | 384-bit✓ | 256-bit |
| Memory Speed | 21 Gbps | 30 Gbps✓ |
| Bandwidth | 1,008 GB/s✓ | 960 GB/s |
Connectivity & Power
| Specification | GeForce RTX 4090 | GeForce RTX 5080 |
|---|---|---|
| Interface | PCIe 4.0 x16 | PCIe 5.0 x16 |
| TDP | 450 W | 360 W✓ |
| Power Connectors | 1x 16-pin | 1x 16-pin |
| Released | Sep 2022 | Jan 2025 |
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