GPU database & comparison tool
Compare specifications for over 500 NVIDIA and AMD graphics cards. Our free GPU comparison tool provides detailed information on CUDA cores, stream processors, memory bandwidth, TDP, clock speeds, and more. Find the perfect graphics card for gaming, content creation, or professional workloads.
Why use our GPU database?
- ✅ Compare up to 3 GPUs side-by-side
- ✅ Complete technical specifications for 500+ graphics cards
- ✅ Latest NVIDIA RTX 40-series & AMD RX 7000 series
- ✅ Search by model, architecture, or manufacturer
- ✅ Mobile-optimized comparison tool
- ✅ Regularly updated with new GPU releases
Browse & Compare Graphics Cards
How to use the GPU comparison tool
- Browse – Scroll through our database of 500+ NVIDIA and AMD GPUs
- Search – Type a model name (e.g., “RTX 4090”) or architecture (e.g., “Ada Lovelace”)
- Filter – Select NVIDIA or AMD from the manufacturer dropdown
- Compare – Check the boxes next to 2-3 GPUs and click the Compare button
- Details – Click any GPU row for complete specifications and technical details
GPU buying guide 2025
Best GPUs for 1080p gaming (Budget: £200-£400)
- NVIDIA RTX 4060 – 8GB GDDR6, 3072 CUDA cores, perfect for high FPS 1080p gaming
- NVIDIA RTX 4060 Ti – 8GB/16GB GDDR6, 4352 CUDA cores, excellent 1080p ultra settings
- AMD RX 7600 XT – 16GB GDDR6, 2048 Stream Processors, great value for 1080p
Best GPUs for 1440p gaming (Budget: £400-£700)
- NVIDIA RTX 4070 – 12GB GDDR6X, 5888 CUDA cores, excellent 1440p high-refresh
- NVIDIA RTX 4070 Super – 12GB GDDR6X, improved performance over base 4070
- AMD RX 7800 XT – 16GB GDDR6, 3840 Stream Processors, strong 1440p performer
Best GPUs for 4K gaming (Budget: £700+)
- NVIDIA RTX 4080 – 16GB GDDR6X, 9728 CUDA cores, excellent 4K 60+ FPS
- NVIDIA RTX 4090 – 24GB GDDR6X, 16384 CUDA cores, best consumer GPU for 4K
- AMD RX 7900 XTX – 24GB GDDR6, 6144 Stream Processors, strong 4K alternative
Understanding GPU specifications
CUDA cores vs stream processors
CUDA cores (NVIDIA): These are parallel processing units that handle multiple tasks simultaneously. More CUDA cores generally mean better performance for gaming, 3D rendering, and compute tasks. NVIDIA’s RTX 40-series uses Ada Lovelace architecture with significantly improved CUDA core efficiency.
Stream processors (AMD): AMD’s equivalent to CUDA cores. While you can’t directly compare core counts between manufacturers due to different architectures, AMD’s RDNA 3 architecture delivers excellent performance per Stream Processor.
Memory types: GDDR6 vs GDDR6X
GDDR6: Standard video memory used in most modern GPUs. Offers excellent bandwidth for 1080p and 1440p gaming. Found in mid-range cards and AMD’s entire lineup.
GDDR6X: NVIDIA’s faster memory technology used in high-end RTX cards. Provides higher bandwidth crucial for 4K gaming and professional workloads. Features in RTX 4070 Ti and above.
Memory size requirements
- 6-8GB: Sufficient for 1080p gaming at high settings
- 10-12GB: Ideal for 1440p gaming and content creation
- 16GB+: Recommended for 4K gaming, video editing, and 3D rendering
- 24GB: Professional workloads, AI/ML tasks, extreme 4K gaming
Clock speeds explained
Base clock: The guaranteed minimum frequency your GPU will run at under load. This is the conservative speed that ensures stability.
Boost clock: The maximum frequency your GPU can reach under optimal conditions. Modern GPUs dynamically boost based on temperature and power availability. Real-world boost clocks often exceed the rated spec.
TDP (thermal design power)
TDP indicates how much power your GPU consumes and how much heat it generates. This is crucial for choosing the right power supply and cooling solution:
- 75W or less: Entry-level cards that don’t require external power connectors
- 150-200W: Mid-range cards requiring one 8-pin PCIe power connector
- 250-320W: High-end cards needing two 8-pin connectors
- 350-450W: Flagship cards requiring three 8-pin or one 12VHPWR connector (RTX 4090)
Ray tracing technology
Ray tracing simulates realistic lighting, shadows, and reflections in real-time. Both NVIDIA and AMD offer hardware-accelerated ray tracing:
- NVIDIA: 2nd Gen (RTX 30-series), 3rd Gen (RTX 40-series with improved RT cores)
- AMD: RDNA 2 Ray Accelerators (RX 6000), enhanced RDNA 3 (RX 7000)
PCIe interface
Modern GPUs use PCIe 4.0 or 5.0 interfaces. While PCIe 4.0 provides ample bandwidth for current GPUs, PCIe 5.0 future-proofs your system for next-generation cards. The RTX 40-series supports PCIe 4.0, while some newer cards are beginning to adopt PCIe 5.0.
Frequently asked questions
How do I compare GPUs on Techsavant?
To compare graphics cards, simply check the boxes next to 2-3 GPUs you’re interested in from the database above. Once selected, click the “Compare” button that appears. You’ll see a side-by-side comparison showing CUDA cores/Stream Processors, memory specifications, TDP, clock speeds, and all other key specifications to help you make an informed decision.
Which GPU is best for gaming in 2025?
The best GPU depends on your resolution and budget. For 1080p gaming, the RTX 4060 or RX 7600 XT offer excellent value. For 1440p, consider the RTX 4070 or RX 7800 XT. For 4K gaming, the RTX 4080 or RTX 4090 deliver the best performance, while the AMD RX 7900 XTX provides excellent value at the high end.
What’s the difference between NVIDIA and AMD GPUs?
NVIDIA GPUs typically excel in ray tracing performance and offer DLSS (Deep Learning Super Sampling) technology for AI-upscaling. They also have better support for professional applications and CUDA acceleration. AMD GPUs often provide better value for pure rasterization performance and come with more VRAM at similar price points. AMD’s FSR (FidelityFX Super Resolution) is an open-source alternative to DLSS.
How much VRAM do I need for gaming?
For 1080p gaming, 6-8GB VRAM is sufficient for most games at high settings. For 1440p, aim for 10-12GB to ensure smooth performance in demanding titles. For 4K gaming or future-proofing, 16GB or more is recommended. Content creators and professionals should consider 16GB+ for video editing and 3D rendering tasks.
What PSU wattage do I need for my GPU?
Calculate your PSU needs based on your GPU’s TDP plus your CPU and other components. As a general rule: Budget GPUs (150W) need 550W PSU, mid-range (250W) need 650-750W, high-end (320W) need 850W, and flagship cards like RTX 4090 (450W) require 1000W+ PSUs. Always choose a quality 80+ Gold or Platinum rated power supply.
Should I buy NVIDIA or AMD?
Choose NVIDIA if you prioritize ray tracing, DLSS, CUDA for professional work, or want the absolute best performance regardless of price. Choose AMD if you want better value, more VRAM at similar price points, or prefer open-source technologies like FSR. Both manufacturers offer excellent gaming performance – your choice often comes down to specific features and budget.
How often are new GPUs released?
Major GPU generations are typically released every 2 years. NVIDIA launched RTX 40-series in 2022-2024, and RTX 50-series is expected in 2025. AMD launched RX 7000 series in 2022-2023. Between major releases, manufacturers often introduce “Super” or “XT” variants with improved specs. We update our database regularly with all new releases.
💡 Pro Tip
Use our comparison tool to check not just gaming performance specs, but also memory bandwidth, process node, and TDP. A GPU might have more cores but higher power consumption – factor in electricity costs and cooling requirements when making your decision.
Related Resources
Disclaimer: While we strive to provide accurate GPU specifications, some details may be incomplete or vary by manufacturer/model variant. For the most accurate information, always check the official manufacturer’s website. We are not affiliated with NVIDIA, AMD, or any GPU manufacturers. All product names and trademarks are property of their respective owners.