GeForce RTX 3080 Max-Q vs Radeon R9 390 X2
General info
GPU architecture, market segment, value for money and other general parameters compared.
| Place in performance ranking | not rated | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Architecture | GCN 2.0 (2013−2017) | Ampere (2020−2022) |
| GPU code name | Grenada | GN20-E7 GA104 |
| Market segment | Desktop | Laptop |
| Release date | 3 September 2015 (8 years old) | 4 January 2021 (3 years old) |
| Launch price (MSRP) | $1,399 | no data |
| Current price | $225 (0.2x MSRP) | no data |
Technical specs
General performance parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. These parameters indirectly speak of performance, but for precise assessment you have to consider their benchmark and gaming test results. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.
| Pipelines / CUDA cores | 2560 | 6144 |
| Core clock speed | 1000 MHz | 780 MHz |
| Boost clock speed | no data | 1245 MHz |
| Number of transistors | 6,200 million | 17,400 million |
| Manufacturing process technology | 28 nm | 8 nm |
| Power consumption (TDP) | 580 Watt | 80 Watt |
| Texture fill rate | 160.0 | 239.0 |
| Floating-point performance | 2x 5,120 gflops | no data |
Size and compatibility
Information on Radeon R9 390 X2 and GeForce RTX 3080 Max-Q compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop video cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility). For notebook video cards it's notebook size, connection slot and bus, if the video card is inserted into a slot instead of being soldered to the notebook motherboard.
| Laptop size | no data | large |
| Interface | PCIe 3.0 x16 | PCIe 4.0 x16 |
| Width | 3-slot | no data |
| Supplementary power connectors | 4x 8-pin | None |
Memory
Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.
| Memory type | GDDR5 | GDDR6 |
| Maximum RAM amount | 8 GB | 16 GB |
| Memory bus width | 512 Bit | 256 Bit |
| Memory clock speed | 5400 MHz | 6000 MHz |
| Memory bandwidth | 345.6 GB/s | 320.0 GB/s |
| Shared memory | no data | - |
Video outputs and ports
Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.
| Display Connectors | 2x DVI, 1x HDMI, 1x DisplayPort | 1x HDMI, 3x DisplayPort |
| HDMI | + | + |
API support
List of supported graphics and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (12_0) | 12 Ultimate (12_2) |
| Shader Model | 6.3 | 6.5 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.0 | 2.0 |
| Vulkan | 1.2.131 | 1.2 |
| CUDA | no data | 8.6 |
Advantages and disadvantages
| Recency | 3 September 2015 | 4 January 2021 |
| Maximum RAM amount | 8 GB | 16 GB |
| Chip lithography | 28 nm | 8 nm |
| Power consumption (TDP) | 580 Watt | 80 Watt |
We couldn't decide between Radeon R9 390 X2 and GeForce RTX 3080 Max-Q. We've got no test results to judge.
Be aware that Radeon R9 390 X2 is a desktop card while GeForce RTX 3080 Max-Q is a notebook one.
Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.
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