AMD Radeon RX 5300M vs NVIDIA GeForce RTX 3080 Ti Comparison

The NVIDIA GeForce RTX 3080 Ti and AMD Radeon RX 5300M occupy opposite ends of the hardware spectrum, and the benchmark data reflects that chasm. The RTX 3080 Ti is a desktop flagship, built for maximum performance, while the RX 5300M is a mobile part designed for thin-and-light laptops. The data shows an overwhelming victory for the NVIDIA card, with a 365.5% lead over the AMD card in the single shared benchmark. The RTX 3080 Ti should be the choice for any user building a high-end desktop workstation or gaming rig where raw performance is the only metric that matters. The RX 5300M is strictly for users who need a dedicated GPU in a portable chassis and are willing to accept a massive performance compromise for that form factor. There is no scenario in the data where the AMD card wins, so the verdict is not about which is better, but about which is appropriate for your physical and performance requirements.

The Verdict

The data is unambiguous: the NVIDIA GeForce RTX 3080 Ti is in a completely different performance class than the AMD Radeon RX 5300M. In the only head-to-head benchmark available, Geekbench OpenCL, the RTX 3080 Ti scores 170,037, which is 365.5% higher than the RX 5300M's 36,529. This is not a close contest; it is a generational and architectural gap. The RTX 3080 Ti is for desktop users who demand top-tier frame rates and compute throughput. The RX 5300M is for mobile users who need a discrete GPU in a laptop, but the data suggests they will get roughly a quarter of the compute performance of the desktop card. If you are building a desktop, the RTX 3080 Ti is the only rational choice. If you are buying a laptop, the RX 5300M is a functional option, but you must understand you are sacrificing an enormous amount of performance relative to the desktop flagship.

Architecture Differences

The two GPUs are built on entirely different architectures, process nodes, and design philosophies. The NVIDIA GeForce RTX 3080 Ti uses the GA102 chip on the Ampere architecture, fabricated on an 8 nm process at Samsung. This chip contains 28,300 million transistors on a 628 mm² die, yielding a transistor density of 45.1M per mm². In contrast, the AMD Radeon RX 5300M uses the Navi 14 chip on the RDNA 1.0 architecture, fabricated on a 7 nm process at TSMC. This mobile chip contains 6,400 million transistors on a 158 mm² die, with a density of 40.5M per mm². The RTX 3080 Ti is a massive chip with 10,240 shading units, 320 TMUs, and 112 ROPs, while the RX 5300M has just 1,408 shading units, 88 TMUs, and 32 ROPs. The NVIDIA part also includes 80 RT cores and 320 tensor cores, while the AMD part has none of those dedicated hardware units listed. The feature set differs as well: the RTX 3080 Ti 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, but the NVIDIA card's API support is more modern on the DirectX front.

Where Each One Wins

The RTX 3080 Ti wins in every measurable category from the data. It has a higher average benchmark score of 41,187 compared to the RX 5300M's 36,529, placing it in the 83rd percentile of all GPUs versus the 80th percentile for the AMD card. The RTX 3080 Ti's Geekbench OpenCL score of 170,037 dwarfs the RX 5300M's 36,529. The NVIDIA card also has a much higher Passmark G3D score of 26,896 and a Passmark GPU Compute score of 15,282, though the RX 5300M has no comparable scores in those tests. The RX 5300M's only potential advantage is its physical footprint—it has no power connectors, a TDP of 85 W, and is described as "Portable Device Dependent" for display outputs, meaning it is designed for laptops. The RTX 3080 Ti, by contrast, requires a 750 W power supply and a 1x 12-pin connector, with a TDP of 350 W. So, the AMD card wins on power efficiency and portability, not on raw performance. The data shows the RTX 3080 Ti is the clear winner for any compute or gaming workload, while the RX 5300M is the only choice for a laptop form factor.

FAQ

Q: How much faster is the NVIDIA GeForce RTX 3080 Ti than the AMD Radeon RX 5300M in the shared benchmark?

A: In the Geekbench OpenCL test, the RTX 3080 Ti scores 170,037, which is 365.5% higher than the RX 5300M's 36,529.

Q: Which GPU has a higher average benchmark score?

A: The RTX 3080 Ti has an average benchmark score of 41,187, while the RX 5300M averages 36,529. This places the NVIDIA card in the 83rd percentile of all GPUs, with the AMD card at the 80th percentile.

Q: Do both GPUs support the same DirectX version?

A: No. The RTX 3080 Ti supports DirectX 12 Ultimate (12_2), while the RX 5300M is limited to DirectX 12 (12_1).

Q: What is the memory configuration difference between the two cards?

A: The RTX 3080 Ti has 12 GB of GDDR6X memory on a 384-bit bus with 912.4 GB/s bandwidth. The RX 5300M has 3 GB of GDDR6 memory on a 96-bit bus with 168.0 GB/s bandwidth.

Q: Which card has a higher transistor count?

A: The RTX 3080 Ti has 28,300 million transistors, compared to 6,400 million for the RX 5300M.

Q: Is the RX 5300M a desktop card?

A: No. The data shows its display outputs are "Portable Device Dependent," it has no power connectors, and it has a TDP of 85 W, indicating it is a mobile GPU.

Head-to-Head Benchmarks

The only direct comparison in the data is the Geekbench OpenCL test, and it is a blowout. The NVIDIA GeForce RTX 3080 Ti scores 170,037, while the AMD Radeon RX 5300M scores 36,529. This represents a 365.5% delta, meaning the NVIDIA card delivers nearly four and a half times the compute performance in this workload. This score aligns with the architectural differences: the RTX 3080 Ti has 10,240 shading units and 34.10 TFLOPS of FP32 compute, whereas the RX 5300M has just 1,408 shading units and 4.069 TFLOPS of FP32. The NVIDIA card's memory bandwidth of 912.4 GB/s is more than five times the RX 5300M's 168.0 GB/s, which heavily influences OpenCL compute tasks that are memory-bound. The RTX 3080 Ti also has a texture rate of 532.8 GTexel/s and a pixel rate of 186.5 GPixel/s, versus 127.2 GTexel/s and 46.24 GPixel/s for the AMD card. While the RX 5300M has no other benchmark scores to compare, its single data point is enough to establish the hierarchy—the RTX 3080 Ti is in a league of its own.

Specification Differences

The specification sheet tells the story of two different product categories. The RTX 3080 Ti is a desktop card with a length of 285 mm, height of 112 mm, and width of 40 mm, requiring a dual-slot design and a 750 W power supply. The RX 5300M has no listed dimensions, slot width, or PSU requirement, as it is a mobile part. The NVIDIA card has a base clock of 1365 MHz and a boost clock of 1665 MHz, while the AMD card runs at 1000 MHz base and 1445 MHz boost, with a game clock of 1181 MHz. The memory clocks also differ significantly: the RTX 3080 Ti runs at 1188 MHz with 19 Gbps effective speed, while the RX 5300M runs at 1750 MHz with 14 Gbps effective speed. The RTX 3080 Ti has 80 RT cores and 320 tensor cores, which are entirely absent from the RX 5300M. The NVIDIA card's FP16 performance is 34.10 TFLOPS (1:1), while the AMD card's FP16 is 8.138 TFLOPS (2:1), indicating a different compute ratio. The bus interface also differs: the RTX 3080 Ti uses PCIe 4.0 x16, while the RX 5300M uses PCIe 4.0 x8. Finally, the RTX 3080 Ti has a launch MSRP of 1,199 USD, while the RX 5300M has no listed launch MSRP. The RTX 3080 Ti was released on 2021-05-30, while the RX 5300M was released on 2019-11-12, and both are now end-of-life products.