AMD Radeon RX 5300M vs NVIDIA GeForce RTX 4080 Mobile Comparison

NVIDIA GeForce RTX 4080 Mobile is a high-end mobile GPU built on the 5 nm Ada Lovelace architecture, while AMD Radeon RX 5300M is an older, end-of-life mobile option using the 7 nm RDNA 1.0 architecture. The benchmark data shows a decisive performance gap, with the RTX 4080 Mobile winning the only shared test by a massive margin, placing it in a different performance class entirely.

Where Each One Wins

The RTX 4080 Mobile wins the sole head-to-head benchmark available, the Geekbench OpenCL test, with a score of 159,575 against the RX 5300M’s 36,529. That is a 336.8% advantage, meaning the RTX 4080 Mobile delivers roughly 4.4 times the compute performance in this workload. There are no benchmark categories where the RX 5300M comes out ahead; the data shows zero wins for the AMD part.

Looking at the broader benchmark suite for the RTX 4080 Mobile, it posts strong numbers across DirectX 11, DirectX 12, and compute workloads, with a Passmark G3D score of 24,926 and a GPU compute score of 11,191. The RX 5300M has no other benchmark entries besides the Geekbench OpenCL result, so its competitive picture is limited to that single data point. For any practical use case—gaming at high settings, 3D rendering, or GPU-accelerated compute—the RTX 4080 Mobile is the clear winner based on the available evidence.

The RTX 4080 Mobile also holds a higher percentile ranking at 81 versus the RX 5300M’s 80, though that gap is small. In terms of average benchmark score, the RTX 4080 Mobile averages 38,135, while the RX 5300M averages 36,529. The RTX 4080 Mobile’s nearest rivals include the NVIDIA GeForce RTX 4070 and RTX 5080 Mobile with deltas of 1.3% and -0.6% respectively, indicating it sits in a competitive tier among modern GPUs. The RX 5300M’s nearest rival is the NVIDIA GeForce GTX TITAN X with a delta of 0%, showing it performs at a level comparable to a much older desktop flagship.

Architecture Differences

The architectural gap between these two GPUs is substantial and explains most of the performance difference. The RTX 4080 Mobile uses the AD104 chip built on TSMC’s 5 nm process, packing 35,800 million transistors into a 294 mm² die. That yields a transistor density of 121.8 million per square millimeter. The RX 5300M uses the Navi 14 chip on TSMC’s 7 nm process, with only 6,400 million transistors on a 158 mm² die, giving a density of 40.5 million per square millimeter. The RTX 4080 Mobile has more than five times the transistor count on a die that is less than twice the size.

The RTX 4080 Mobile features 7,424 shading units, 232 texture mapping units, and 80 ROPs. It also includes 58 ray tracing cores and 232 tensor cores, enabling hardware-accelerated ray tracing and AI features like DLSS. The RX 5300M has 1,408 shading units, 88 TMUs, and 32 ROPs, with no ray tracing cores or tensor cores listed. This means the AMD part lacks dedicated hardware for ray tracing and tensor-based workloads entirely.

In terms of compute throughput, the RTX 4080 Mobile delivers 24.72 TFLOPS of FP32 performance and the same 24.72 TFLOPS for FP16 (1:1 ratio). The RX 5300M offers 4.069 TFLOPS FP32 and 8.138 TFLOPS FP16 (2:1 ratio). The RTX 4080 Mobile’s FP32 output is over six times higher. The pixel rate is 133.2 GPixel/s for the RTX 4080 Mobile versus 46.24 GPixel/s for the RX 5300M, and the texture rate is 386.3 GTexel/s versus 127.2 GTexel/s.

The RTX 4080 Mobile supports DirectX 12 Ultimate (12_2), while the RX 5300M is limited to DirectX 12 (12_1). Both support OpenGL 4.6 and Vulkan 1.4. The NVIDIA part also has a newer release date of 2023-01-02 compared to the AMD’s 2019-11-12, and the RTX 4080 Mobile remains in active production while the RX 5300M is end-of-life.

Head-to-Head Benchmarks

The only direct benchmark comparison available is the Geekbench OpenCL test. The RTX 4080 Mobile scores 159,575, while the RX 5300M scores 36,529. The delta is 336.8% in favor of the NVIDIA GPU. This is not a marginal difference; it is a categorical gap that places the two cards in different segments.

To put this into perspective using the nearest rival data: the RTX 4080 Mobile’s average benchmark score of 38,135 is close to the NVIDIA GeForce MX570 (38,299, delta -0.4%) and the RTX 5080 Mobile (38,349, delta -0.6%). The RX 5300M’s average of 36,529 is nearly identical to the GeForce GTX TITAN X (36,530, delta 0%). So while both GPUs land near similar average scores in their respective rival groups, the RTX 4080 Mobile’s OpenCL result is far above its own average, suggesting that test heavily favors its architecture.

The RTX 4080 Mobile also has a full suite of Passmark results: DirectX 10 at 157, DirectX 11 at 244, DirectX 12 at 96, DirectX 9 at 286, G2D at 929, G3D at 24,926, and GPU compute at 11,191. The RX 5300M has none of these results, so there is no way to compare them on those specific APIs. The single OpenCL result remains the only quantifiable head-to-head metric, and it overwhelmingly favors the RTX 4080 Mobile.

Specification Differences

The two GPUs differ in nearly every specification category. The process node is 5 nm for the RTX 4080 Mobile versus 7 nm for the RX 5300M. Transistor count is 35,800 million versus 6,400 million, and die size is 294 mm² versus 158 mm². Transistor density is 121.8M per mm² versus 40.5M per mm².

Memory configurations are also very different. The RTX 4080 Mobile has 12 GB of GDDR6 on a 192-bit bus, delivering 432.0 GB/s of bandwidth with 18 Gbps effective memory speed. The RX 5300M has 3 GB of GDDR6 on a 96-bit bus, delivering 168.0 GB/s with 14 Gbps effective speed. That is 4 times the memory capacity and 2.6 times the bandwidth for the NVIDIA part.

Clock speeds favor the RTX 4080 Mobile as well. Its base clock is 1290 MHz with a boost of 1665 MHz, while the RX 5300M runs at 1000 MHz base, 1181 MHz game clock, and 1445 MHz boost. The shading unit count is 7,424 versus 1,408, TMUs are 232 versus 88, and ROPs are 80 versus 32. The RTX 4080 Mobile has 58 RT cores and 232 tensor cores; the RX 5300M has none.

Power draw differs, with the RTX 4080 Mobile rated at 110 W TDP versus the RX 5300M’s 85 W. The RTX 4080 Mobile is listed as an IGP with no power connectors, and the RX 5300M also has no power connectors listed. The bus interface is PCIe 4.0 x16 for the RTX 4080 Mobile versus PCIe 4.0 x8 for the RX 5300M. The production status is Active for the NVIDIA part and End-of-life for the AMD part.

FAQ

Q: Which GPU has higher raw compute performance?

A: The RTX 4080 Mobile delivers 24.72 TFLOPS FP32, while the RX 5300M offers 4.069 TFLOPS FP32. The RTX 4080 Mobile also has 7,424 shading units versus 1,408.

Q: How do the memory specs compare?

A: The RTX 4080 Mobile has 12 GB GDDR6 on a 192-bit bus with 432.0 GB/s bandwidth. The RX 5300M has 3 GB GDDR6 on a 96-bit bus with 168.0 GB/s bandwidth.

Q: Does the RX 5300M support ray tracing?

A: No. The RX 5300M has no RT cores listed, while the RTX 4080 Mobile includes 58 RT cores and 232 tensor cores.

Q: What is the performance difference in the shared benchmark?

A: In Geekbench OpenCL, the RTX 4080 Mobile scores 159,575 versus 36,529 for the RX 5300M, a 336.8% advantage.

Q: Are both GPUs currently in production?

A: No. The RTX 4080 Mobile is listed as Active, while the RX 5300M is End-of-life.

Q: Which GPU has higher memory bandwidth?

A: The RTX 4080 Mobile has 432.0 GB/s bandwidth, which is roughly 2.6 times the RX 5300M’s 168.0 GB/s.

The Verdict

The data is unambiguous. The RTX 4080 Mobile outperforms the RX 5300M by 336.8% in the only available head-to-head benchmark. It has more memory, more bandwidth, more shading units, higher clock speeds, a newer architecture, and a smaller process node. The RTX 4080 Mobile also supports DirectX 12 Ultimate and includes ray tracing and tensor cores, features entirely absent from the RX 5300M.

For a user choosing between these two, the RTX 4080 Mobile is the only sensible pick for any modern workload. It is in a different performance class, as shown by its average score of 38,135 versus 36,529, and its percentile rank of 81 versus 80. The RX 5300M might be acceptable for basic tasks or legacy applications, but its end-of-life status and lack of hardware features make it a poor choice for future-proofing. The RTX 4080 Mobile’s 12 GB of VRAM and 432.0 GB/s bandwidth also position it for higher-resolution textures and more demanding compute tasks.

The RX 5300M’s only advantage is lower power draw at 85 W versus 110 W, which could matter in a very power-constrained laptop. But that modest 25 W difference does not compensate for a 336.8% performance deficit. The RTX 4080 Mobile’s nearest rivals include the RTX 4070 and RTX 5080 Mobile, showing it is competitive with current-generation desktop and mobile parts. The RX 5300M’s nearest rival is the GeForce GTX TITAN X, a GPU from a previous era.

Choose the RTX 4080 Mobile if you need performance, modern features, or any ray tracing capability. Choose the RX 5300M only if you are constrained to an older platform and accept its limitations. The benchmark data provides no scenario where the RX 5300M wins.