NVIDIA GeForce RTX 4080 Mobile

The NVIDIA GeForce RTX 4080 Mobile occupies a distinct performance tier, landing in the 81st percentile of all GPUs with an average benchmark score of 38,135. This places it in a tightly contested bracket where the data shows margins of less than one percent against its nearest rivals, making it a top-tier mobile solution that trades blows with desktop-class hardware despite its laptop-oriented design.

Benchmark Performance

The RTX 4080 Mobile’s average benchmark score of 38,135 establishes it as a high-end performer, though the data reveals an exceptionally competitive field. Against the NVIDIA CMP 70HX, the RTX 4080 Mobile trails by a negligible 0.2%, with the rival scoring 38,225. This effectively places the two GPUs in a statistical dead heat, indicating that the mobile part can match a mining-specific desktop card in raw compute throughput. Conversely, the GeForce MX570 A scores 38,008, putting the RTX 4080 Mobile ahead by 0.3% — a margin so slim it falls within normal run-to-run variance, yet it confirms the 4080 Mobile’s position above entry-level mobile parts.

The comparison to the newer RTX 5080 Mobile is particularly telling. The 5080 Mobile scores 38,349, which is 0.6% higher than the 4080 Mobile. This suggests that generational uplift in the mobile segment is modest at this performance tier, with the older 4080 Mobile remaining highly relevant. Similarly, the AMD Radeon RX 7900 XT, a desktop flagship, scores 38,358, edging out the 4080 Mobile by just 0.6%. Benchmark results indicate the RTX 4080 Mobile delivers desktop-class performance in a mobile form factor, as it sits within a single percentage point of a high-end desktop card.

In specific workloads, the data shows strong compute capabilities. The Geekbench OpenCL score of 159,575 is substantial, reflecting the GPU’s 24.72 TFLOPS of FP32 throughput. The Vulkan score of 145,807 is lower but still robust, indicating solid cross-API performance. PassMark results are more varied: the G3D score of 24,926 is respectable for gaming, while the GPU compute score of 11,191 highlights its parallel processing strength. Older DirectX tests show the architecture’s efficiency — DirectX 9 scores 286, DirectX 11 scores 244, and DirectX 10 scores 157 — but the DirectX 12 score of 96 is notably lower, suggesting the 4080 Mobile is optimized for modern APIs rather than legacy workloads. The 2D score of 929 is typical for a discrete GPU, as 2D tasks are not the primary focus.

Ray Tracing and Feature Set

The RTX 4080 Mobile is built on the Ada Lovelace architecture, featuring 58 RT cores dedicated to ray tracing and 232 tensor cores for AI-accelerated workloads. This hardware foundation enables hardware-accelerated ray tracing with dedicated processing units, a key differentiator from non-RT GPUs. The tensor cores support DLSS and other AI-driven features, which can significantly boost frame rates in supported titles by rendering at lower resolutions and upscaling.

API support is comprehensive and forward-looking. The GPU supports DirectX 12 Ultimate with feature level 12_2, which includes hardware ray tracing, variable rate shading, and mesh shaders. OpenGL 4.6 and Vulkan 1.4 are also supported, ensuring compatibility with a wide range of modern and legacy applications. The 5 nm process node from TSMC, with 35,800 million transistors on a 294 mm² die, provides the efficiency headroom needed for these advanced features in a mobile thermal envelope. The transistor density of 121.8M per mm² is exceptionally high, enabling the 7424 shading units and 232 texture mapping units to operate within the 110 W TDP.

Who Should Consider It

Based on the benchmark data, the RTX 4080 Mobile is for users who demand near-desktop performance in a laptop. The 0.6% gap against the RX 7900 XT means it can handle high-resolution gaming with settings maxed out, though the exact frame rates depend on the title and the rest of the system. The 81st percentile ranking places it above the majority of GPUs, making it suitable for 1440p and 4K gaming where the 12 GB VRAM and 432.0 GB/s bandwidth provide sufficient headroom for high-resolution textures.

The 0.3% lead over the MX570 A shows it is in a completely different league than entry-level mobile GPUs, so it is not for budget-conscious buyers. The data indicates this is a premium part for enthusiasts who want a single system for gaming, content creation, and AI workloads. The 24.72 TFLOPS FP32 performance and 232 tensor cores make it capable for GPU-accelerated rendering and machine learning tasks, though the 110 W TDP means it is best paired with a robust cooling solution in a larger chassis.

Users targeting maximum ray tracing performance should note the 58 RT cores, but the DirectX 12 score of 96 suggests that raw rasterization in older APIs is not its strength. It is a modern GPU for modern workloads. The near-parity with the CMP 70HX indicates it can handle compute-heavy tasks like mining or rendering, but its gaming pedigree makes it a more versatile choice.

FAQ

Q: How does the RTX 4080 Mobile compare to the RTX 5080 Mobile?

A: The RTX 5080 Mobile scores 38,349, which is 0.6% higher than the 4080 Mobile’s 38,135. The performance difference is minimal, making the 4080 Mobile a viable alternative to the newer part.

Q: Is the RTX 4080 Mobile faster than the AMD Radeon RX 7900 XT?

A: No, the RX 7900 XT scores 38,358, which is 0.6% higher than the 4080 Mobile’s average score of 38,135. The margin is small, so the mobile GPU is nearly equivalent to this desktop card.

Q: What is the memory configuration of the RTX 4080 Mobile?

A: The GPU has 12 GB of GDDR6 memory on a 192-bit bus, providing 432.0 GB/s of bandwidth. This configuration supports high-resolution gaming with large texture packs.

Q: Does the RTX 4080 Mobile support hardware ray tracing?

A: Yes, it has 58 RT cores dedicated to ray tracing, and it supports DirectX 12 Ultimate with feature level 12_2, which includes hardware-accelerated ray tracing.

Q: What is the power consumption of the RTX 4080 Mobile?

A: The TDP is 110 W, and it uses no external power connectors, drawing power through the motherboard. This makes it suitable for laptops with adequate cooling.

Q: How does the RTX 4080 Mobile perform in compute workloads?

A: It achieves a Geekbench OpenCL score of 159,575 and a PassMark GPU compute score of 11,191. The 24.72 TFLOPS FP32 performance and 232 tensor cores make it strong for AI and rendering tasks.

How It Compares

NVIDIA CMP 70HX: The CMP 70HX scores 38,225, which is 0.2% higher than the RTX 4080 Mobile’s 38,135. The two GPUs are essentially tied in average score, but the 4080 Mobile offers ray tracing and tensor cores that the mining-focused CMP 70HX lacks, making it a more feature-complete product.

NVIDIA GeForce MX570 A: The MX570 A scores 38,008, putting the RTX 4080 Mobile 0.3% ahead. This is a negligible margin, but the 4080 Mobile’s 12 GB VRAM and 58 RT cores provide a substantial feature advantage over the entry-level MX570 A, which is not designed for gaming or ray tracing.

NVIDIA GeForce RTX 5080 Mobile: The RTX 5080 Mobile scores 38,349, which is 0.6% higher than the 4080 Mobile. The performance delta is small, suggesting that the 4080 Mobile remains competitive with the next-generation part. The 5080 Mobile does not offer a meaningful performance uplift, so users with the 4080 Mobile need not upgrade immediately.

AMD Radeon RX 7900 XT: The RX 7900 XT scores 38,358, which is 0.6% higher than the 4080 Mobile. This desktop card holds a slim lead, but the 4080 Mobile’s mobile form factor and lower power requirements make it a compelling choice for laptops. The data shows the 4080 Mobile delivers desktop-level performance in a portable package.

Power and Cooling

The RTX 4080 Mobile has a TDP of 110 W, which is modest for the performance on offer. This efficiency is enabled by the 5 nm TSMC process node, which allows 35,800 million transistors to operate within this power envelope. The GPU uses no external power connectors, drawing power through the motherboard, which simplifies installation in laptops. There is no suggested PSU rating, as this is an integrated GPU (IGP) with a slot width of IGP, meaning it is soldered onto the motherboard rather than being a replaceable card.

The 110 W TDP requires a robust cooling solution in the laptop chassis to sustain boost clocks of 1665 MHz. Users should ensure their system has adequate thermal design, as sustained loads like gaming or rendering will push the GPU to its power limit. The lack of external power connectors means the motherboard must deliver stable power, so the quality of the laptop’s power delivery system is critical.

Memory Subsystem

The RTX 4080 Mobile is equipped with 12 GB of GDDR6 memory, configured on a 192-bit bus. The memory operates at 2250 MHz with an effective data rate of 18 Gbps, yielding a bandwidth of 432.0 GB/s. This bandwidth is sufficient for 1440p gaming at high settings and can handle 4K textures, though the 192-bit bus is narrower than some desktop counterparts. The 12 GB capacity is adequate for modern games, but future titles with larger texture requirements may benefit from more VRAM.

For high-resolution workloads, the 432.0 GB/s bandwidth ensures that the GPU is not bottlenecked by memory access. This is particularly important for ray tracing, which requires frequent memory reads. The 12 GB capacity also supports AI inference tasks that use the tensor cores, as larger models can be loaded into VRAM. The memory subsystem is well-balanced with the GPU’s compute capabilities, as shown by the near-parity with desktop GPUs in benchmark scores.