AMD Radeon RX Vega M GH vs NVIDIA RTX A5000 Comparison

Head-to-Head Benchmarks

The recorded data includes only two shared benchmark tests between the NVIDIA RTX A5000 and the AMD Radeon RX Vega M GH: Geekbench OpenCL and Geekbench Vulkan. The NVIDIA RTX A5000 wins both decisively.

In Geekbench OpenCL, the RTX A5000 scores 157,905 against the Vega M GH's 27,125. That is a delta of 482.1%, meaning the NVIDIA card delivers nearly five times the raw compute throughput in this API. The gap is so large that it dwarfs any other comparison in the database for these two parts.

In Geekbench Vulkan, the RTX A5000 scores 137,828 versus 31,268 for the Vega M GH, a 340.8% advantage. While the absolute scores are lower for both cards than in OpenCL, the proportional lead for NVIDIA remains enormous. The Vulkan result also shows that the RTX A5000's lead is not limited to a single API or driver path; it persists across both general-purpose and graphics-oriented compute workloads.

The head-to-head tally is 2 wins for the RTX A5000 and 0 for the Vega M GH. There are no benchmark tests in the shared set where the AMD part comes out ahead. The absence of any direct gaming or DirectX tests in the shared database means the comparison is confined to compute-style workloads, but within that scope, the result is unambiguous.

The average benchmark score for the RTX A5000 is 33,622, placing it in the 78th percentile of all GPUs in the database. The Vega M GH averages 29,197, which puts it in the 74th percentile. The percentile difference is smaller than the raw score difference suggests, because the RTX A5000's nearest rivals include the NVIDIA GeForce GTX 1060 5 GB (average 33,694, delta -0.2%), AMD Radeon RX 7700S (33,849, -0.7%), AMD Radeon HD 7950 (33,951, -1%), and AMD Radeon RX 480 (33,997, -1.1%). The Vega M GH sits near the AMD FirePro W8000 (29,211, 0%), Intel Arc A370M (29,175, 0.1%), AMD Radeon RX 470 (28,996, 0.7%), and AMD Radeon RX 6800M (28,874, 1.1%). The RTX A5000 is effectively tied with its nearest rivals, while the Vega M GH is also tightly clustered, but the two clusters are far apart.

Architecture Differences

The two GPUs come from different manufacturers, process nodes, and design philosophies. The NVIDIA RTX A5000 uses the GA102 chip built on Ampere architecture, fabricated by Samsung on an 8 nm process. The chip contains 28,300 million transistors on a 628 mm² die, yielding a transistor density of 45.1 million per mm². The AMD Radeon RX Vega M GH uses the Polaris 22 chip on GCN 4.0 architecture, built by GlobalFoundries on a 14 nm process. It has 5,000 million transistors on a 208 mm² die, for a density of 24.0 million per mm².

The transistor count difference is stark: the RTX A5000 has over five times as many transistors as the Vega M GH, and the die is three times larger. The density advantage for NVIDIA (45.1M/mm² versus 24.0M/mm²) reflects the newer 8 nm node compared to 14 nm.

The RTX A5000 has 8,192 shading units, 256 texture mapping units, and 96 ROPs. It also includes 64 dedicated ray tracing cores and 256 tensor cores. The Vega M GH has 1,536 shading units, 96 TMUs, and 64 ROPs, with no ray tracing cores and no tensor cores listed. The compute capability gap is structural: the RTX A5000 offers 27.77 TFLOPS FP32 and 27.77 TFLOPS FP16 (1:1), while the Vega M GH delivers 3.656 TFLOPS FP32 and 3.656 TFLOPS FP16 (1:1). That is a 7.6x difference in raw FP32 throughput.

Pixel and texture rates follow the same pattern. The RTX A5000 achieves 162.7 GPixel/s and 433.9 GTexel/s, versus 76.16 GPixel/s and 114.2 GTexel/s for the Vega M GH. The NVIDIA card is roughly twice as fast in pixel fill and nearly four times as fast in texture fill.

Memory architecture also diverges completely. The RTX A5000 uses 24 GB of GDDR6 on a 384-bit bus, with 768.0 GB/s bandwidth. The Vega M GH uses 4 GB of HBM2 on a 1024-bit bus, with 204.8 GB/s bandwidth. The bus width favors AMD, but the total bandwidth is 3.75x higher on the NVIDIA card. The Vega M GH's memory runs at 800 MHz (1600 Mbps effective), while the RTX A5000's memory runs at 2000 MHz (16 Gbps effective).

API support differs as well. The RTX A5000 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The Vega M GH supports DirectX 12 (12_0), OpenGL 4.6, and Vulkan 1.3. The DirectX feature level is a notable difference: 12_2 on NVIDIA versus 12_0 on AMD, which affects real-time ray tracing and mesh shader support.

Where Each One Wins

The RTX A5000 wins in every recorded benchmark category where both cards appear. It is the clear choice for compute-heavy workloads, including OpenCL and Vulkan applications. The 482.1% lead in OpenCL suggests the RTX A5000 is suited for tasks like rendering, simulation, and machine learning inference, where massive shading unit counts and tensor cores come into play. The 340.8% lead in Vulkan indicates strong performance in modern graphics APIs that expose low-level hardware control.

The Vega M GH does not win any shared benchmark test. Its only recorded scores are the two Geekbench entries, both of which are far behind. The 74th percentile ranking shows it is not a weak GPU in absolute terms; it sits near the AMD FirePro W8000 and Intel Arc A370M. But it has no domain in the head-to-head data where it beats the RTX A5000.

The RTX A5000's 78th percentile placement, while not elite, puts it in the same performance class as the GTX 1060 5 GB and the RX 480 according to the database's average score metric. That seems counterintuitive given the massive head-to-head wins, but the average score includes all recorded benchmarks, not just the two shared tests. The Vega M GH's 74th percentile with scores near the RX 470 and RX 6800M shows that both GPUs are mid-pack in the overall database, despite their extreme divergence in the specific tests they share.

For real-world use, the RTX A5000 is the obvious pick for any workload that uses OpenCL or Vulkan. The Vega M GH might still be functional for light compute or as an integrated solution, but the data provides no scenario where it outperforms the RTX A5000.

Specification Differences

The following fields differ between the two GPUs:

• Chip: GA102 versus Polaris 22
• Architecture: Ampere versus GCN 4.0
• Generation: Workstation Ampere (Ax000) versus Vega (Vega M)
• Process node: 8 nm versus 14 nm
• Foundry: Samsung versus GlobalFoundries
• Transistors: 28,300 million versus 5,000 million
• Die size: 628 mm² versus 208 mm²
• Transistor density: 45.1M/mm² versus 24.0M/mm²
• Base clock: 1170 MHz versus 1063 MHz
• Boost clock: 1695 MHz versus 1190 MHz
• Memory clock: 2000 MHz (16 Gbps effective) versus 800 MHz (1600 Mbps effective)
• Memory size: 24 GB versus 4 GB
• Memory type: GDDR6 versus HBM2
• Memory bus width: 384 bit versus 1024 bit
• Memory bandwidth: 768.0 GB/s versus 204.8 GB/s
• Shading units: 8192 versus 1536
• TMUs: 256 versus 96
• ROPs: 96 versus 64
• RT cores: 64 versus none
• Tensor cores: 256 versus none
• Pixel rate: 162.7 GPixel/s versus 76.16 GPixel/s
• Texture rate: 433.9 GTexel/s versus 114.2 GTexel/s
• FP32: 27.77 TFLOPS versus 3.656 TFLOPS
• FP16: 27.77 TFLOPS (1:1) versus 3.656 TFLOPS (1:1)
• TDP: 230 W versus 100 W
• Slot width: Dual-slot versus IGP
• Power connectors: 1x 8-pin versus none
• Suggested PSU: 550 W versus none
• Bus interface: PCIe 4.0 x16 versus IGP
• Display outputs: 4x DisplayPort 1.4a versus Portable Device Dependent
• DirectX support: 12 Ultimate (12_2) versus 12 (12_0)
• Vulkan support: 1.4 versus 1.3
• Dimensions: 267 mm x 112 mm versus not specified
• Release date: 2021-04-11 versus 2018-01-31

The Vega M GH has no launch MSRP listed, and the RTX A5000 also has no launch MSRP listed, so no pricing data is available for either product.

FAQ

Q: Which GPU has more shading units?

A: The NVIDIA RTX A5000 has 8,192 shading units, while the AMD Radeon RX Vega M GH has 1,536.

Q: What is the memory bandwidth of each card?

A: The RTX A5000 delivers 768.0 GB/s over a 384-bit GDDR6 bus, while the Vega M GH delivers 204.8 GB/s over a 1024-bit HBM2 bus.

Q: Does the Vega M GH support ray tracing?

A: No. The Vega M GH has no ray tracing cores listed, while the RTX A5000 includes 64 RT cores.

Q: How do the two compare in Geekbench Vulkan?

A: The RTX A5000 scores 137,828 versus 31,268 for the Vega M GH, a 340.8% lead for NVIDIA.

Q: Which card has a higher TDP?

A: The RTX A5000 has a TDP of 230 W, while the Vega M GH has a TDP of 100 W. The Vega M GH is an integrated GPU (IGP), so it requires no separate power connector or PSU recommendation.

Q: Are both GPUs still in production?

A: No. Both are listed as end-of-life in the database. The RTX A5000 was released on 2021-04-11, and the Vega M GH on 2018-01-31.

The Verdict

The data is unambiguous. The NVIDIA RTX A5000 outperforms the AMD Radeon RX Vega M GH in every shared benchmark by a massive margin. If the workload is OpenCL or Vulkan compute, the RTX A5000 is the only rational choice. Its 482.1% lead in OpenCL and 340.8% lead in Vulkan leave no room for interpretation.

The Vega M GH is not a bad GPU for its class. It sits in the 74th percentile of all GPUs and matches the AMD FirePro W8000 and Intel Arc A370M in average score. But its 4 GB memory, 3.656 TFLOPS compute, and lack of ray tracing and tensor cores make it a fundamentally different product tier.

The RTX A5000 also offers 24 GB of memory, 27.77 TFLOPS FP32, and 64 RT cores, which makes it suitable for professional workloads like 3D rendering, AI inference, and large dataset processing. The Vega M GH, with 4 GB of HBM2 and no tensor or RT cores, is suited only for light compute or as an integrated graphics solution in portable devices.

The specification sheet reinforces the benchmark results: the RTX A5000 has more of everything that matters for performance, except for memory bus width and power efficiency. The Vega M GH's 1024-bit HBM2 bus is wider, but the RTX A5000 still achieves 3.75x the bandwidth. The Vega M GH's 100 W TDP is lower, but that is because it is an IGP with no discrete power delivery.

Choose the RTX A5000 if the task requires maximum compute throughput, large memory capacity, or modern API features like DirectX 12 Ultimate and Vulkan 1.4. Choose the Vega M GH only if the system requires an integrated GPU with no expansion slot, no external power, and minimal thermal footprint. In any direct performance comparison, the RTX A5000 wins outright.