GPU Comparison
Select up to 2 GPUs to analyze their pricing, performance, and specifications side-by-side.
On raw speed the GeForce RTX 4090 comes out dramatically faster — about 67% ahead of the Radeon RX 7900 GRE. But the Radeon RX 7900 GRE is the better value, undercutting it by $4,894 CAD for the performance you get.
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GeForce RTX 4090 vs Radeon RX 7900 GRE: In-Depth Breakdown
Performance: GeForce RTX 4090 vs Radeon RX 7900 GRE
The GeForce RTX 4090 is dramatically faster, around 67% ahead of the Radeon RX 7900 GRE. That gap is enough to move it up a tier: the GeForce RTX 4090 is comfortable at 4K and high-refresh 1440p, while the Radeon RX 7900 GRE is better matched to 4K with upscaling and native 1440p.
Price & Value
The Radeon RX 7900 GRE currently lists from $605 CAD, $4,894 CAD less than the GeForce RTX 4090 at $5,499 CAD. Despite being slower, the Radeon RX 7900 GRE offers the better performance-per-dollar (~443% better value), so budget-focused buyers should weigh it carefully. The GeForce RTX 4090 still sits about $3,900 CAD above its $1,599 CAD MSRP.
Power & Efficiency
At 260W against 450W, the Radeon RX 7900 GRE is both the lower-power and the more efficient card, making it the easier build to cool and power. Its more modern RDNA 3 architecture on a TSMC N5 process is part of why it does more with each watt.
VRAM & Future-Proofing
The GeForce RTX 4090 carries 24GB versus 16GB on the Radeon RX 7900 GRE. 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 Radeon RX 7900 GRE is roughly 2 years newer than the GeForce RTX 4090 (RDNA 3 vs Ada Lovelace), so it generally benefits from a more modern architecture and longer driver-support runway.
Features & Ecosystem
Beyond raw numbers, the GeForce RTX 4090 brings NVIDIA DLSS upscaling/frame generation and stronger ray tracing, while the Radeon RX 7900 GRE offers AMD FSR upscaling and strong rasterization value. If you lean on upscaling or ray tracing, that ecosystem difference can matter as much as the frame-rate gap.
Which should you buy: GeForce RTX 4090 or Radeon RX 7900 GRE?
Choose the GeForce RTX 4090 if you want the most performance and can absorb the higher price. If you're optimizing for value, the Radeon RX 7900 GRE stretches your money further for only slightly lower performance.