Radeon RX 7990 XTX vs 860M
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 433 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | 54.63 | no data |
| Architecture | RDNA 3.5 (2024−2025) | RDNA 3.0 (2022−2025) |
| GPU code name | Strix Point | Navi 31 |
| Market segment | Laptop | Desktop |
| Release date | March 2025 (recently) | 2023 (2 years ago) |
Detailed specifications
General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.
| Pipelines / CUDA cores | 512 | 6144 |
| Core clock speed | 400 MHz | 2500 MHz |
| Boost clock speed | 3000 MHz | 3599 MHz |
| Number of transistors | 34,000 million | 57,700 million |
| Manufacturing process technology | 4 nm | 5 nm |
| Power consumption (TDP) | 15 Watt | 405 Watt |
| Texture fill rate | 96.00 | 1,382 |
| Floating-point processing power | 3.072 TFLOPS | 88.45 TFLOPS |
| ROPs | 8 | 192 |
| TMUs | 32 | 384 |
| Ray Tracing Cores | 8 | 96 |
Form factor & compatibility
Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).
| Laptop size | medium sized | no data |
| Interface | PCIe 4.0 x8 | PCIe 4.0 x16 |
| Length | no data | 287 mm |
| Width | no data | 3-slot |
| Supplementary power connectors | None | 3x 8-pin |
VRAM capacity and type
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 | System Shared | GDDR6 |
| Maximum RAM amount | System Shared | 24 GB |
| Memory bus width | System Shared | 384 Bit |
| Memory clock speed | System Shared | 3000 MHz |
| Memory bandwidth | no data | 1.15 TB/s |
| Shared memory | + | - |
| Resizable BAR | - | + |
Connectivity and outputs
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 | Portable Device Dependent | 1x HDMI 2.1a, 2x DisplayPort 2.1, 1x USB Type-C |
| HDMI | - | + |
API and SDK compatibility
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 Ultimate (12_2) | 12 Ultimate (12_2) |
| Shader Model | 6.8 | 6.7 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.1 | 2.2 |
| Vulkan | 1.3 | 1.3 |
Pros & cons summary
| Chip lithography | 4 nm | 5 nm |
| Power consumption (TDP) | 15 Watt | 405 Watt |
Radeon 860M has a 25% more advanced lithography process, and 2600% lower power consumption.
We couldn't decide between Radeon 860M and Radeon RX 7990 XTX. We've got no test results to judge.
Be aware that Radeon 860M is a notebook card while Radeon RX 7990 XTX is a desktop one.
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