GPU Comparison
Select up to 2 GPUs to analyze their pricing, performance, and specifications side-by-side.
Market Value Leader
GeForce RTX 4080 is the clear winner, offering 8.8% better value than Radeon RX 6400.
On raw speed the GeForce RTX 4080 comes out dramatically faster — about 817% ahead of the Radeon RX 6400. It also wins on performance-per-dollar, making it the cleaner choice when you can afford it.
Maximum Capacity Reached. Remove a model to add another. (2/2)
Comparable or lower specs
GeForce RTX 4080 vs Radeon RX 6400: In-Depth Breakdown
Performance: GeForce RTX 4080 vs Radeon RX 6400
The GeForce RTX 4080 is dramatically faster, around 817% ahead of the Radeon RX 6400. That gap is enough to move it up a tier: the GeForce RTX 4080 is comfortable at 4K with upscaling and native 1440p, while the Radeon RX 6400 is better matched to entry-level 1080p.
Price & Value
The Radeon RX 6400 currently lists from $852 AED, $6,322 AED less than the GeForce RTX 4080 at $7,173 AED. Because it's both faster and competitively priced, the GeForce RTX 4080 wins on performance-per-dollar by about 9%. The Radeon RX 6400 still sits about $693 AED above its $159 AED MSRP. The GeForce RTX 4080 still sits about $5,974 AED above its $1,199 AED MSRP.
Power & Efficiency
On power, the Radeon RX 6400 is the gentler choice at 53W versus 320W. The GeForce RTX 4080 is more efficient per watt because it's faster, but its higher 320W draw means more heat and a bigger PSU.
VRAM & Future-Proofing
The GeForce RTX 4080 carries 16GB versus 4GB on the Radeon RX 6400. The extra 12GB helps at 4K, with high-resolution texture packs, and for content-creation or local-AI workloads that exhaust smaller buffers.
Features & Ecosystem
Beyond raw numbers, the GeForce RTX 4080 brings NVIDIA DLSS upscaling/frame generation and stronger ray tracing, while the Radeon RX 6400 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 4080 or Radeon RX 6400?
The GeForce RTX 4080 is the all-round winner here — it's faster and the better value, so buy it if it fits your budget. Only consider the Radeon RX 6400 if you find it at a steep discount.
Frequently Asked Questions
Is the GeForce RTX 4080 better than the Radeon RX 6400?
Which is better for 4K gaming, the GeForce RTX 4080 or the Radeon RX 6400?
Is the GeForce RTX 4080 worth the extra $6,322 AED over the Radeon RX 6400?
Does the GeForce RTX 4080 have enough VRAM advantage to matter?
Technical Specifications Comparison
Architecture & Cores
| Specification | GeForce RTX 4080 | Radeon RX 6400 |
|---|---|---|
| Architecture | Ada Lovelace | RDNA 2 |
| Process Node | TSMC 4N | TSMC N6 |
| CUDA Cores (CUDA Cores / Stream Processors) | 9,728✓ | 768 |
| Ray Tracing Cores | 76✓ | 12 |
| Tensor / AI Cores | 304 | — |
Clock Speeds
| Specification | GeForce RTX 4080 | Radeon RX 6400 |
|---|---|---|
| Base Clock | 2,205 MHz✓ | 1,923 MHz |
| Boost Clock | 2,505 MHz✓ | 2,321 MHz |
Memory
| Specification | GeForce RTX 4080 | Radeon RX 6400 |
|---|---|---|
| VRAM Capacity | 16 GB✓ | 4 GB |
| Memory Type | GDDR6X | GDDR6 |
| Memory Bus | 256-bit✓ | 64-bit |
| Memory Speed | 22.4 Gbps✓ | 16 Gbps |
| Bandwidth | 716.8 GB/s✓ | 128 GB/s |
Connectivity & Power
| Specification | GeForce RTX 4080 | Radeon RX 6400 |
|---|---|---|
| Interface | PCIe 4.0 x16 | PCIe 4.0 x4 |
| TDP | 320 W | 53 W✓ |
| Power Connectors | 1x 16-pin | None |
| Released | Sep 2022 | Jan 2022 |
Related Reading
The Ultimate 1440p Powerhouse: NVIDIA GeForce RTX 4080
In 2026, the RTX 4080 has found its sweet spot. Is this former 4K titan the ultimate high-refresh 1440p card for today's market?
Best for: The 4K Texture Modder & Raw Power Enthusiast
Modded Skyrim and Starfield at 4K can exceed 18GB of VRAM usage. Discover why the 7900 XT's 20GB buffer is a necessity.