GeForce RTX 3080 12GB & GeForce RTX 3080 10GB share many similarities, but there are also important differences, such as quality, performance, features, design, and connectivity. If you want the best one between them, I Would recommend the GeForce RTX 3080 12GB rather than the GeForce RTX 3080 10GB.

Why Do I Recommend The GeForce RTX 3080 12GB?
- The GeForce RTX 3080 12GB comes with 12GB GDDR6X memory for handling higher-resolution textures and memory-heavy games more smoothly at 4K, while the GeForce RTX 3080 10GB comes with 10GB GDDR6X memory.
- GeForce RTX 3080 12GB features a 384-bit memory bus for faster data transfer between the GPU and memory in bandwidth-intensive workloads, whereas the GeForce RTX 3080 10GB uses a 320-bit memory bus.
- It includes higher memory bandwidth for maintaining more stable frame rates in modern games with large assets and complex scenes, while the GeForce RTX 3080 10GB has lower memory bandwidth.
- The GeForce RTX 3080 12GB has 8960 CUDA cores for stronger parallel processing performance in gaming, rendering, and GPU-accelerated applications, while the GeForce RTX 3080 10GB has 8704 CUDA cores.
- GeForce RTX 3080 12GB supports a higher total board power limit for sustaining boost clocks under prolonged heavy loads, whereas the GeForce RTX 3080 10GB operates with a lower power limit.
- It includes 70 RT cores for improved ray tracing performance in visually demanding titles, while the GeForce RTX 3080 10GB includes 68 RT cores.
- The GeForce RTX 3080 12GB comes with additional Tensor cores for better AI-driven performance in features such as DLSS and creative workloads, while the GeForce RTX 3080 10GB has fewer Tensor cores.
- GeForce RTX 3080 12GB features greater memory headroom for professional workloads like video editing and 3D rendering with large project files, whereas the GeForce RTX 3080 10GB provides less available VRAM for such tasks.
Maybe the GeForce RTX 3080 10GB price can make you comfortable because it’s a little bit cheaper than the GeForce RTX 3080 12GB. But you have to compromise all the above-mentioned features. Now the Decision is Yours. I hope it was helpful to choose the right one.
Side By Side Comparison
| Feature | GeForce RTX 3080 12GB | GeForce RTX 3080 10GB |
| VRAM Capacity | 12GB GDDR6X | 10GB GDDR6X |
| Memory Bus Width | 384-bit | 320-bit |
| Memory Bandwidth | 912 GB/s | 760 GB/s |
| CUDA Cores | 8960 | 8704 |
| SM Count | 70 | 68 |
| Tensor Cores | 280 | 272 |
| RT Cores | 70 | 68 |
| L2 Cache | 6 MB | 5 MB |
| FP32 Throughput | ~30.6 TFLOPs | ~29.8 TFLOPs |
| Total Board Power | 350 W | 320 W |
| Memory Chips Count | 12 modules | 10 modules |
| Memory Interface Channels | 12×32-bit | 10×32-bit |
| Launch Generation | 2022 refresh | 2020 original |
| Die Configuration | GA102-220 | GA102-200 |
| Thermal Headroom | Higher | Lower |
| Price | Check 3080 12GB Price | Check 3080 10GB Price |
Common Features
| Feature | GeForce RTX 3080 12GB | GeForce RTX 3080 10GB |
| GPU Architecture | Ampere | Ampere |
| GPU Die | GA102 | GA102 |
| Manufacturing Process | Samsung 8 nm | Samsung 8 nm |
| CUDA Architecture | NVIDIA CUDA | NVIDIA CUDA |
| Ray Tracing Support | Yes | Yes |
| Tensor Cores | 3rd Gen | 3rd Gen |
| RT Cores | 2nd Gen | 2nd Gen |
| DLSS Support | Yes | Yes |
| DirectX Support | DirectX 12 Ultimate | DirectX 12 Ultimate |
| Vulkan Support | Vulkan 1.2 | Vulkan 1.2 |
| Memory Type | GDDR6X | GDDR6X |
| Memory Speed | 19 Gbps | 19 Gbps |
| PCIe Interface | PCIe 4.0 x16 | PCIe 4.0 x16 |
| NVENC / NVDEC | Yes | Yes |
| Multi-Monitor Support | Yes | Yes |
| VR Ready | Yes | Yes |
| HDMI Standard | HDMI 2.1 | HDMI 2.1 |
| DisplayPort Standard | DisplayPort 1.4a | DisplayPort 1.4a |
| Price | Check 3080 12GB Price | Check 3080 10GB Price |