GPU Comparison
Select up to 2 GPUs to analyze their pricing, performance, and specifications side-by-side.
Market Value Leader
GeForce RTX 4090 is the clear winner, offering 24.9% better value than GeForce RTX 4080.
The GeForce RTX 4090 is significantly faster than the GeForce RTX 4080, leading by roughly 31% in our performance index. It is also the stronger value pick here, so it's the easy recommendation if your budget allows.
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Comparable or lower specs
GeForce RTX 4090 vs GeForce RTX 4080: In-Depth Breakdown
Performance: GeForce RTX 4090 vs GeForce RTX 4080
The GeForce RTX 4090 is significantly faster, around 31% ahead of the GeForce RTX 4080. That gap is enough to move it up a tier: the GeForce RTX 4090 is comfortable at 4K and high-refresh 1440p, while the GeForce RTX 4080 is better matched to 4K with upscaling and native 1440p. The GeForce RTX 4090 packs 16,384 CUDA cores versus 9,728 on the GeForce RTX 4080. The GeForce RTX 4090 also has more RT cores (128 vs 76) and more AI cores (512 vs 304), strengthening its ray-tracing and AI-upscaling performance.
Price & Value
Right now the GeForce RTX 4080 starts at $2,195 CAD against $2,300 CAD for the GeForce RTX 4090. Because it's both faster and competitively priced, the GeForce RTX 4090 wins on performance-per-dollar by about 25%. The GeForce RTX 4080 still sits about $996 CAD above its $1,199 CAD MSRP. The GeForce RTX 4090 still sits about $701 CAD above its $1,599 CAD MSRP.
Power & Efficiency
The GeForce RTX 4080 draws just 320W versus 450W for the GeForce RTX 4090, and it also delivers more performance per watt — so it runs cooler and quieter and needs less PSU headroom.
VRAM & Future-Proofing
With 24GB against 16GB, the GeForce RTX 4090 has more headroom for 4K textures and memory-hungry creative/AI tasks where the GeForce RTX 4080's 16GB can fall short. The GeForce RTX 4090's memory is also faster — 1,008 GB/s versus 717 GB/s (384-bit vs 256-bit bus) — which helps feed the GPU at 4K and with heavy textures.
Which should you buy: GeForce RTX 4080 or GeForce RTX 4090?
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 4080 if you find it at a steep discount.
Frequently Asked Questions
Is the GeForce RTX 4090 better than the GeForce RTX 4080?
Which is better for 4K gaming, the GeForce RTX 4080 or the GeForce RTX 4090?
Is the GeForce RTX 4090 worth the extra $105 CAD over the GeForce RTX 4080?
Does the GeForce RTX 4090 have enough VRAM advantage to matter?
Which is better for ray tracing, the GeForce RTX 4090 or the GeForce RTX 4080?
Technical Specifications Comparison
Architecture & Cores
| Specification | GeForce RTX 4080 | GeForce RTX 4090 |
|---|---|---|
| Architecture | Ada Lovelace | Ada Lovelace |
| Process Node | TSMC 4N | TSMC 4N |
| CUDA Cores (CUDA Cores / CUDA Cores) | 9,728 | 16,384✓ |
| Ray Tracing Cores | 76 | 128✓ |
| Tensor / AI Cores | 304 | 512✓ |
Clock Speeds
| Specification | GeForce RTX 4080 | GeForce RTX 4090 |
|---|---|---|
| Base Clock | 2,205 MHz | 2,235 MHz✓ |
| Boost Clock | 2,505 MHz | 2,520 MHz✓ |
Memory
| Specification | GeForce RTX 4080 | GeForce RTX 4090 |
|---|---|---|
| VRAM Capacity | 16 GB | 24 GB✓ |
| Memory Type | GDDR6X | GDDR6X |
| Memory Bus | 256-bit | 384-bit✓ |
| Memory Speed | 22.4 Gbps✓ | 21 Gbps |
| Bandwidth | 716.8 GB/s | 1,008 GB/s✓ |
Connectivity & Power
| Specification | GeForce RTX 4080 | GeForce RTX 4090 |
|---|---|---|
| Interface | PCIe 4.0 x16 | PCIe 4.0 x16 |
| TDP | 320 W✓ | 450 W |
| Power Connectors | 1x 16-pin | 1x 16-pin |
| Released | Sep 2022 | Sep 2022 |
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