AMD Radeon RX Vega M GH vs NVIDIA RTX A5000 Mobile Comparison

Where Each One Wins

The benchmark results in the database split cleanly along compute and graphics workloads. The AMD Radeon RX Vega M GH does not win a single recorded head-to-head test against the NVIDIA RTX A5000 Mobile. The NVIDIA part takes both available comparisons, and the margins are substantial.

In Geekbench OpenCL, the RTX A5000 Mobile scores 110877 against 27125 for the Vega M GH, a delta of -75.5% from the AMD part's perspective. That is not a close contest; it is a category difference. OpenCL tends to reward raw compute throughput, memory bandwidth, and driver efficiency, and the NVIDIA part has all three in greater measure.

In Geekbench Vulkan, the same pattern holds but with a slightly smaller gap. The RTX A5000 Mobile posts 88144, while the Vega M GH manages 31268, a -64.5% delta. Vulkan is a lower-overhead API, so the gap narrows somewhat, but it remains overwhelming.

Looking at the broader database, the Vega M GH's average benchmark score is 29197, which places it in the 74th percentile of all GPUs tracked. The RTX A5000 Mobile's average is 24763, which places it in the 70th percentile. This is an unusual situation: the NVIDIA part wins every head-to-head test by a wide margin, yet its average score is lower and its percentile is lower. The explanation lies in the test set. The RTX A5000 Mobile has nine recorded benchmarks, including several Passmark tests where it scores poorly (for example, Passmark DirectX 12 at 72 and Passmark DirectX 9 at 169). Those low scores drag its average down. The Vega M GH has only two recorded tests, both Geekbench, and both are relatively strong for its class.

So the practical takeaway: for compute-heavy workloads measured by Geekbench, the RTX A5000 Mobile is in a different league. For the specific niche of an integrated Vega part, the Vega M GH holds its own in the 74th percentile, but it cannot compete with a dedicated mobile workstation GPU in raw number crunching. The data does not support any scenario where the AMD part wins a recorded benchmark.

Architecture Differences

These two GPUs come from different design philosophies and different process generations. The AMD Radeon RX Vega M GH uses the Polaris 22 chip built on GCN 4.0 architecture, fabricated on a 14 nm process at GlobalFoundries. The die is 208 mm² and contains 5,000 million transistors, giving a transistor density of 24.0 million per square millimeter. The RTX A5000 Mobile uses the GA104 chip built on Ampere architecture, fabricated on an 8 nm process at Samsung. The die is 392 mm² and contains 17,400 million transistors, giving a transistor density of 44.4 million per square millimeter. The NVIDIA chip more than doubles the transistor count and roughly doubles the die area, while nearly doubling the density.

The memory subsystems are fundamentally different. The Vega M GH uses 4 GB of HBM2 on a 1024-bit bus, delivering 204.8 GB/s of bandwidth. The RTX A5000 Mobile uses 16 GB of GDDR6 on a 256-bit bus, delivering 448.0 GB/s. The NVIDIA part has four times the capacity and more than double the bandwidth, despite a narrower bus. That is a direct consequence of higher memory clocks: 1750 MHz (14 Gbps effective) versus 800 MHz (1600 Mbps effective).

Compute resources also diverge sharply. The Vega M GH has 1536 shading units, 96 texture mapping units, and 64 ROPs. The RTX A5000 Mobile has 6144 shading units, 192 TMUs, and 96 ROPs. The NVIDIA part quadruples the shading units, doubles the TMUs, and adds 50% more ROPs. It also features 48 ray tracing cores and 192 tensor cores, hardware the AMD part lacks entirely.

The feature set reflects the generation gap. The Vega M GH supports DirectX 12 (12_0), OpenGL 4.6, and Vulkan 1.3. The RTX A5000 Mobile supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The NVIDIA part is also a PCIe 4.0 x16 device, while the AMD part is an IGP with no bus interface beyond that.

Power and packaging differ as well. The Vega M GH is rated at 100 W and is an integrated graphics package (IGP). The RTX A5000 Mobile is rated at 150 W and lists no power connectors, which is typical for a mobile part drawing from the laptop's power delivery. The AMD GPU is from 2018, while the NVIDIA GPU is from 2021. Both are end-of-life in the database.

Head-to-Head Benchmarks

The recorded head-to-head data contains only two tests, but the story they tell is unambiguous.

Geekbench OpenCL: the RTX A5000 Mobile scores 110877 against the Vega M GH's 27125, a delta of -75.5% for the AMD part. To put that in perspective, the RTX A5000 Mobile is roughly four times faster in this workload. OpenCL exercises general compute across the whole GPU, and the NVIDIA part's 19.35 TFLOPS of FP32 throughput, 6144 shading units, and 448.0 GB/s of memory bandwidth simply overwhelm the Vega M GH's 3.656 TFLOPS, 1536 shading units, and 204.8 GB/s. The 16 GB frame buffer also matters for compute datasets that exceed 4 GB.

Geekbench Vulkan: the RTX A5000 Mobile scores 88144 against 31268, a delta of -64.5%. The margin shrinks from the OpenCL test, likely because Vulkan's lower overhead reduces driver bottlenecks that would otherwise penalize the AMD part. Still, the NVIDIA GPU is about 2.8 times faster here. The Vulkan test also reflects the RTX A5000 Mobile's higher boost clock of 1575 MHz against 1190 MHz, and its 151.2 GPixel/s pixel rate against 76.16 GPixel/s.

The nearest rival data adds context. The Vega M GH's average score of 29197 sits within 0.1% of the AMD FirePro W8000 (29211), 0.1% above the Intel Arc A370M (29175), 0.7% above the AMD Radeon RX 470 (28996), and 1.1% above the AMD Radeon RX 6800M (28874). That last one is remarkable: the RX 6800M is a high-end mobile gaming GPU, yet its recorded average score is lower than the Vega M GH's in this database. The RTX A5000 Mobile's average of 24763 sits within 0.1% of the AMD Radeon RX 590 (24744), 0.5% above the Intel Arc A350M (24647), 1.3% above the AMD Radeon RX 6600 XT (24442), and 2% above the NVIDIA GeForce GTX 1630 (24277). The RTX A5000 Mobile's Passmark scores, particularly the very low DirectX 12 result of 72, pull its average down relative to its Geekbench dominance.

The data says this: in the two tests where both GPUs were measured, the RTX A5000 Mobile wins by margins between 64.5% and 75.5%. There is no recorded test where the Vega M GH comes out ahead.

The Verdict

Choose the NVIDIA RTX A5000 Mobile if your workload is compute-bound and you need maximum throughput in OpenCL or Vulkan. The data shows it delivers roughly four times the OpenCL performance and about 2.8 times the Vulkan performance of the Vega M GH. It also offers 16 GB of memory versus 4 GB, which matters for larger datasets, and it includes ray tracing and tensor cores that the AMD part does not have at all. The RTX A5000 Mobile is a dedicated mobile workstation GPU from 2021, and the recorded scores reflect that positioning.

Choose the AMD Radeon RX Vega M GH if you are constrained to an integrated graphics solution. It is an IGP, so it fits into a compact system without a discrete GPU slot. Its 74th percentile ranking against all GPUs is respectable for an integrated part, and its average score of 29197 is higher than the RTX A5000 Mobile's 24763, though that is an artifact of the different test sets. In the two tests where both were measured, the AMD part loses decisively. There is no benchmark scenario in the database where the Vega M GH beats the RTX A5000 Mobile.

For a builder choosing between these two, the decision is not really about performance. The RTX A5000 Mobile is categorically faster in every recorded measurement. The only reason to pick the Vega M GH is the IGP form factor and the lower 100 W power envelope against 150 W. If you can accommodate a discrete mobile GPU, the RTX A5000 Mobile is the clear choice from the recorded data.

FAQ

Q: Which GPU is faster in OpenCL?

A: The NVIDIA RTX A5000 Mobile, with a Geekbench OpenCL score of 110877 against 27125 for the AMD Radeon RX Vega M GH, a -75.5% delta.

Q: Which GPU is faster in Vulkan?

A: The NVIDIA RTX A5000 Mobile, with a Geekbench Vulkan score of 88144 against 31268 for the AMD Radeon RX Vega M GH, a -64.5% delta.

Q: How much memory does each GPU have?

A: The AMD Radeon RX Vega M GH has 4 GB of HBM2 on a 1024-bit bus. The NVIDIA RTX A5000 Mobile has 16 GB of GDDR6 on a 256-bit bus.

Q: Does the AMD GPU support ray tracing?

A: No. The AMD Radeon RX Vega M GH has no ray tracing cores. The NVIDIA RTX A5000 Mobile has 48 ray tracing cores and 192 tensor cores.

Q: Which GPU has the higher average benchmark score?

A: The AMD Radeon RX Vega M GH, at 29197, versus 24763 for the NVIDIA RTX A5000 Mobile. However, the NVIDIA part has nine recorded benchmarks including several low Passmark scores, while the AMD part has only two Geekbench scores.

Q: What is the power rating of each GPU?

A: The AMD Radeon RX Vega M GH is rated at 100 W and is an IGP. The NVIDIA RTX A5000 Mobile is rated at 150 W and lists no power connectors.

Specification Differences

| Specification | AMD Radeon RX Vega M GH | NVIDIA RTX A5000 Mobile |

|---|---|---|

| Architecture | GCN 4.0 | Ampere |

| Process Node | 14 nm | 8 nm |

| Foundry | GlobalFoundries | Samsung |

| Transistors | 5,000 million | 17,400 million |

| Die Size | 208 mm² | 392 mm² |

| Transistor Density | 24.0M / mm² | 44.4M / mm² |

| Base Clock | 1063 MHz | 900 MHz |

| Boost Clock | 1190 MHz | 1575 MHz |

| Memory Clock | 800 MHz (1600 Mbps effective) | 1750 MHz (14 Gbps effective) |

| Memory Size | 4 GB | 16 GB |

| Memory Type | HBM2 | GDDR6 |

| Memory Bus Width | 1024 bit | 256 bit |

| Memory Bandwidth | 204.8 GB/s | 448.0 GB/s |

| Shading Units | 1536 | 6144 |

| TMUs | 96 | 192 |

| ROPs | 64 | 96 |

| Ray Tracing Cores | None | 48 |

| Tensor Cores | None | 192 |

| Pixel Rate | 76.16 GPixel/s | 151.2 GPixel/s |

| Texture Rate | 114.2 GTexel/s | 302.4 GTexel/s |

| FP32 Performance | 3.656 TFLOPS | 19.35 TFLOPS |

| FP16 Performance | 3.656 TFLOPS (1:1) | 19.35 TFLOPS (1:1) |

| TDP | 100 W | 150 W |

| Slot Width | IGP | Not specified |

| Power Connectors | Not specified | None |

| Bus Interface | IGP | PCIe 4.0 x16 |

| DirectX Support | 12 (12_0) | 12 Ultimate (12_2) |

| OpenGL Support | 4.6 | 4.6 |

| Vulkan Support | 1.3 | 1.4 |

| Release Date | 2018-01-31 | 2021-04-11 |

| Production Status | End-of-life | End-of-life |