AMD Radeon RX Vega 64 vs NVIDIA GeForce RTX 5080 Mobile Comparison

# AMD Radeon RX Vega 64 vs NVIDIA GeForce RTX 5080 Mobile

The head-to-head data is decisive. Across every recorded benchmark, the NVIDIA GeForce RTX 5080 Mobile finishes ahead of the AMD Radeon RX Vega 64. The widest gaps appear in DirectX 12 and Vulkan workloads, where the NVIDIA part leads by 66.3% and 60.5%, respectively. This is not a near-run thing; it is a category-level difference in rendering throughput.

Head-to-Head Benchmarks

The database includes nine shared benchmark results for these two GPUs. The NVIDIA GeForce RTX 5080 Mobile wins all three head-to-head comparisons, while the AMD Radeon RX Vega 64 does not record a single victory.

In 3DMark Steel Nomad DX12, the RTX 5080 Mobile scores 4952 against the RX Vega 64's 1669. That is a delta of 66.3%, meaning the NVIDIA part finishes the workload in roughly one third of the time. This is the largest measured gap between the two cards.

Geekbench OpenCL tells a similar story, though the percentage gap narrows. The RTX 5080 Mobile posts 166986, while the RX Vega 64 scores 62552. The delta is 62.5%. It is still a commanding lead, but the OpenCL result is closer to the margin seen in Vulkan.

Geekbench Vulkan shows the NVIDIA part at 169754 versus 67032 for the AMD. That is a 60.5% advantage. The pattern is consistent: regardless of the API, the GeForce RTX 5080 Mobile roughly doubles or better the effective throughput of the Radeon RX Vega 64.

Architecture Differences

The two cards come from different architectural lineages. The AMD Radeon RX Vega 64 uses the Vega 10 chip, built on the GCN 5.0 architecture. It is manufactured on a 14 nm process at GlobalFoundries, with 12,500 million transistors on a 495 mm² die. That yields a transistor density of 25.3 million per square millimeter. The card has 4096 shading units, 256 texture mapping units, and 64 ROPs. Memory is 8 GB of HBM2 across a 2048 bit bus, producing 483.8 GB/s of bandwidth. The GPU is rated for 12.66 TFLOPS FP32 and 25.33 TFLOPS FP16 (2:1 ratio).

The NVIDIA GeForce RTX 5080 Mobile is built on the Blackwell 2.0 architecture, using the GB203 chip. It is manufactured on a 5 nm process at TSMC and packs 45,600 million transistors into a 378{DoxyNote} die of 378 mm². The density is 120.6 million transistors per square millimeter, a far higher figure than the AMD card, a direct consequence of the more advanced process node. The RTX 508 has 7680 shading units, 240 Tensor Cores, 60 RT cores, and 96 ROPs. Memory is 16 GB of GDDR7 on a 256 bit bus at 896.0 GB/s. FP32 throughput is 23.04 TFLOPS; FP16 is also 23.04 TFLOPS at a 1:1 ratio. The GPU runs at a base clock of 975񼐄 MHz and reaches 1500 MHz.

The architectural gap is visible in the specs. The NVIDIA part has more shading units, more tensor cores, and a wider memory bus with more bandwidth. The AMD part draws more power: the RX Vega 64 is rated at 295 W TDP and needs two 8-pin power connectors plus a 600 W power supply unit. The RTX 5080 Mobile is an IGP, it does not require external power connectors. The AMD board uses PCIe 3.0 x16, the NVIDIA board PCIe 5.0 x16. Display outputs also differ: the RX Vega 64 has one HDMI 2.0b and three DisplayPort 1.4a, while the RTX 5080 Mobile is portable device dependent.

FAQ

Q: Which card wins in raw performance?

A: The benchmark data consistently favors the NVIDIA GeForce RTX 5080 Mobile. It is ahead by 66.3% in 3DMark Steel Nomad DX12, 62.5% in Geekbench OpenCL, and 60.5% in Geekbench Vulkan. The AMD Radeon RX Vega 64 does not win any head-to-head comparison.

Q: Does the AMD Radeon RX Vega 64 have more VRAM?

A: Yes. The AMD card has 8 GB of HBM2 memory, while the NVIDIA GeForce RTX 5080 Mobile has 16 GB7. However, the NVIDIA card has a larger memory bus width and higher bandwidth (896.0 GB/s vs 483.8 GB/s).

Q: Which card is better for DirectX 12 workloads?

A: The NVIDIA GeForce RTX 5080 Mobile is markedly better. It scores 4952 in 3DMark Steel Nomad DX12, against the Radeon RX Vega 64's 1669. That is a 66.3% advantage.

Q: Are both cards on the same process node?

A: No. The AMD Radeon RX Vega 64 is built on GlobalFoundries' 14 nm process. The NVIDIA GeForce RTX 5080 Mobile is fabricated by TSMC on a 5 nm process. This gives the NVIDIA card a considerably higher transistor density (120.6M per mm² vs 25.3M per mm²).

Specification Differences

| | AMD Radeon RX Vega Biscuit 64 64 | NVIDIA GeForce RTX 508 hunting 5080 Mobile Mobile |

|--|--|--|--:|--:|

| Architecture averaged benchmark | 50001 Septy-first | 38349 |

| Percentile vs all GPUs | 86 | 81 |

| Architecture | GCN Septy | Blackwellacha 2.0 |

| Process | 14 nm | 5 nm |

| Transistor | 12,500 million | 45,600 million |

| Die size | 494 mm² | 378 mm² |

| Memory | 8 GB HBM2

| 16 GB GDDR7 |

| Memory busာအုပ်စ | 483.8 GB/s | 896.0 GB/s |

| FP32ennettuna32 | 12.66 TFLO Talm | 23.03 TFLOPS |

| TDP | 295 WubMed | 80 W |

Specification Differences

The most critical difference is the process node and the resulting capabilities. NVIDIA's 5hundertsieben 5 nm process licensierad at TSMC is far ahead of AMD Septy the 14 nm GlobalFoundries process for AMD. The NVIDIA chip Septy tdP is also lowerNoiz.

In terms of memory, NVIDIA comes with 16 GB GD itandi nalukop and is more modern (GDDR7) than the 8 inventor. The NVIDIA TD is only 80 W, while the AMD has T 295grav W. The NVIDIA does not need an external power.

Where Each One Wins

NVIDIA GeForce RTX 5080 Mobile wins in every head-to-headKadaghanan benchmark recorded in the database. The wins are:

• 3DMark Steel Nomad DX12: 4952 vs 1669 (66.3% ahead)
• Geekbench OpenCL: 166986 vs 62552 (62.5% ahead)
• Geek Pagklasipikar Vul: 169754 vs 67030 (60.5% ahead)

The AMD Radeon RX Diffuse wins no head-to-head benchmark test.

The Verdict

From the recorded data, the choice is clear. The NVIDIA Ge Erkännande 5080 Mobile is the faster part in every test. It leads by 60 to 66% in the head-to-head. The AMD Radeon RX Vega 64 does not have a single test where it is quicker.

The AMD has its place in systems that are already in place with its own slot power draw trafficsKadaghanan. But for those who look at the numbers, the GeForce RTX 5080 Mobile licensierad is the top in this pair.