AMD Radeon RX Vega 64 vs NVIDIA RTX A3000 Mobile Comparison

Where Each One Wins

The recorded benchmark data splits cleanly between the two GPUs, with each taking one victory in the shared tests. The NVIDIA RTX A3000 Mobile wins decisively in Geekbench OpenCL, posting a score of 79091 against the AMD Radeon RX Vega 64's 62552, a margin of 26.4%. That is the largest performance gap found anywhere in the head-to-head results, and it places the mobile NVIDIA part clearly ahead in compute workloads that favor OpenCL execution.

The AMD Radeon RX Vega 64 answers in Geekbench Vulkan, scoring 67032 versus the RTX A3000 Mobile's 61189. That is an 8.7% advantage for AMD, a meaningful but far narrower victory than NVIDIA's OpenCL lead. In practical terms, the AMD card is the stronger choice for Vulkan-based applications, while the NVIDIA card dominates in OpenCL-centric tasks. The two GPUs effectively split the available benchmark territory, so the selection depends entirely on which API the target workload uses.

The broader database picture reinforces this split. The RTX A3000 Mobile sits at the 91st percentile among all GPUs with an average benchmark score of 70140, while the RX Vega 64 sits at the 86th percentile with an average of 50001. That percentile gap is larger than either head-to-head delta might suggest, because the RX Vega 64's average score is dragged down by additional benchmarks beyond the two shared tests. The RTX A3000 Mobile's nearest rivals include the NVIDIA Quadro P6000 at 69986 (0.2% behind) and the AMD Radeon Pro WX 8200 at 69870 (0.4% behind), placing it in a tight cluster of professional-class GPUs. The RX Vega 64's nearest rivals include the NVIDIA GeForce RTX 5070 Ti at 49957 (0.1% behind) and the Intel Arc A550M at 49737 (0.5% behind), a lower overall performance neighborhood despite the Vulkan win.

FAQ

Q: Which GPU wins in Geekbench OpenCL?

A: The NVIDIA RTX A3000 Mobile wins with a score of 79091, which is 26.4% higher than the AMD Radeon RX Vega 64's 62552.

Q: Which GPU wins in Geekbench Vulkan?

A: The AMD Radeon RX Vega 64 wins with a score of 67032, which is 8.7% higher than the NVIDIA RTX A3000 Mobile's 61189.

Q: How do the two GPUs compare in overall average benchmark score?

A: The RTX A3000 Mobile has an average benchmark score of 70140, placing it at the 91st percentile. The RX Vega 64 has an average benchmark score of 50001, placing it at the 86th percentile.

Q: What are the closest rivals to each GPU in the database?

A: The RTX A3000 Mobile's closest rival is the NVIDIA Quadro P6000 at 69986, just 0.2% behind. The RX Vega 64's closest rival is the NVIDIA GeForce RTX 5070 Ti at 49957, just 0.1% behind.

Q: Does the RX Vega 64 have any benchmark advantage over the RTX A3000 Mobile?

A: Yes, the RX Vega 64 leads in Geekbench Vulkan by 8.7%, but it trails in Geekbench OpenCL by 26.4%, giving each GPU one win in the head-to-head tests.

Q: Which GPU has the higher FP32 compute throughput?

A: The AMD Radeon RX Vega 64 has a higher FP32 rating at 12.66 TFLOPS, compared to the NVIDIA RTX A3000 Mobile's 10.08 TFLOPS.

Head-to-Head Benchmarks

The shared benchmark suite consists of exactly two tests, and the results could hardly be more contrasting. In Geekbench OpenCL, the RTX A3000 Mobile produces 79091 points, leaving the RX Vega 64's 62552 far behind. The 26.4% delta is the single largest performance difference recorded between these two GPUs. This is not a marginal win; it is a substantial margin that suggests the NVIDIA architecture has a significant advantage in OpenCL compute execution, likely tied to its Ampere design and driver optimization for that API.

The Geekbench Vulkan test reverses the outcome, though with a smaller gap. The RX Vega 64 scores 67032, beating the RTX A3000 Mobile's 61189 by 8.7%. This result demonstrates that the AMD card remains competitive in modern graphics APIs, and in fact outperforms the newer NVIDIA part in this specific workload. The delta is less than a third of NVIDIA's OpenCL margin, however, so the overall balance of the two-test comparison favors the RTX A3000 Mobile by aggregate score.

Adding the additional benchmarks available for the RX Vega 64 changes the picture. The AMD card also records 68750 in Geekbench Metal and 1669 in 3DMark Steel Nomad DX12. These results are not part of the shared head-to-head set, but they contribute to the RX Vega 64's average benchmark score of 50001. The RTX A3000 Mobile has no Metal or 3DMark Steel Nomad result in the database, so its average of 70140 comes from the two Geekbench tests alone. This explains why the average score gap (about 40%) is larger than either individual head-to-head delta: the RX Vega 64's average includes a lower 3DMark score that pulls its mean down substantially.

The nearest rival data reinforces the positioning of each GPU. The RTX A3000 Mobile's average of 70140 places it within 1.7% of the NVIDIA CMP 90HX at 69000 and 0.4% of the AMD Radeon Pro WX 8200 at 69870. The RX Vega 64's average of 50001 places it just 0.1% above the RTX 5070 Ti and 0.5% above the Intel Arc A550M. The two GPUs clearly occupy different performance tiers in the database despite the split in direct head-to-head results.

Specification Differences

The memory subsystems differ substantially. The RTX A3000 Mobile uses 6 GB of GDDR6 on a 192-bit bus, delivering 264.0 GB/s of bandwidth. The RX Vega 64 uses 8 GB of HBM2 on a 2048-bit bus, delivering 483.8 GB/s of bandwidth. That is nearly double the bandwidth for the AMD card, which helps explain its stronger Vulkan performance in memory-heavy scenarios. The RTX A3000 Mobile's memory runs at 1375 MHz with 11 Gbps effective speed, while the RX Vega 64's memory runs at 945 MHz with 1890 Mbps effective speed, though the vastly wider bus compensates for the lower clock.

Clock speeds also differ. The RTX A3000 Mobile has a base clock of 600 MHz and a boost clock of 1230 MHz. The RX Vega 64 has a base clock of 1247 MHz and a boost clock of 1546 MHz. The AMD card runs significantly faster at both points, a direct consequence of its desktop-class power envelope. The RTX A3000 Mobile's TDP is 70 W with no power connectors required, while the RX Vega 64's TDP is 295 W and requires two 8-pin power connectors with a suggested 600 W power supply. The RX Vega 64 is also a dual-slot card measuring 280 mm in length, 111 mm in height, and 40 mm in width, while the RTX A3000 Mobile's dimensions are listed as portable device dependent.

The bus interfaces differ as well. The RTX A3000 Mobile uses PCIe 4.0 x16, while the RX Vega 64 uses PCIe 3.0 x16. Display outputs also differ: the RTX A3000 Mobile's outputs are portable device dependent, while the RX Vega 64 provides 1x HDMI 2.0b and 3x DisplayPort 1.4a. The API support differs in DirectX and Vulkan versions, with NVIDIA supporting DirectX 12 Ultimate (12_2) and Vulkan 1.4, while AMD supports DirectX 12 (12_1) and Vulkan 1.3. Both support OpenGL 4.6.

Architecture Differences

The two GPUs come from different architectural generations and foundries. The RTX A3000 Mobile uses the GA104 chip built on NVIDIA's Ampere architecture, fabricated on an 8 nm process at Samsung. The RX Vega 64 uses the Vega 10 chip built on AMD's GCN 5.0 architecture, fabricated on a 14 nm process at GlobalFoundries. The transistor counts differ: 17,400 million for the Ampere chip versus 12,500 million for Vega 10. Die sizes also differ, with the GA104 measuring 392 mm² and Vega 10 measuring 495 mm². The transistor density reflects the process advantage, with the NVIDIA chip at 44.4M transistors per mm² versus AMD's 25.3M per mm².

The compute unit layouts show both similarities and differences. Both GPUs have 4096 shading units and 64 ROPs. The texture units differ, with the RX Vega 64 having 256 TMUs versus the RTX A3000 Mobile's 128 TMUs. This gives the AMD card a much higher texture rate of 395.8 GTexel/s versus 157.4 GTexel/s, and a higher pixel rate of 98.94 GPixel/s versus 78.72 GPixel/s.

The RTX A3000 Mobile includes specialized hardware that the RX Vega 64 lacks entirely. The NVIDIA card has 32 RT cores and 128 tensor cores, enabling hardware-accelerated ray tracing and AI workloads. The RX Vega 64 has no RT cores and no tensor cores, meaning those features are absent from its architecture. The FP16 performance also reflects this architectural difference: the RTX A3000 Mobile delivers 10.08 TFLOPS of FP16 at a 1:1 ratio with FP32, while the RX Vega 64 delivers 25.33 TFLOPS of FP16 at a 2:1 ratio. The AMD card's FP32 rating of 12.66 TFLOPS exceeds the NVIDIA card's 10.08 TFLOPS, but the NVIDIA card matches its FP32 and FP16 throughput.

The release timeline and generational context differ as well. The RTX A3000 Mobile was released in 2021 and belongs to the Ampere-MW generation, with a predecessor in the Quadro Turing-M line and a successor in Ada-MW. The RX Vega 64 was released in 2017 and belongs to the Vega generation, with a predecessor in Polaris and a successor in Navi. Both are listed as end-of-life production status. The RX Vega 64 has a launch MSRP of 499 USD.

The Verdict

The data supports a clear split decision. For OpenCL-based compute workloads, the NVIDIA RTX A3000 Mobile is the stronger choice, delivering a 26.4% advantage over the RX Vega 64 in the shared benchmark. Its 91st percentile standing and average score of 70140 place it in a higher overall performance tier. For Vulkan-based workloads, the AMD Radeon RX Vega 64 takes the win with an 8.7% margin, and its higher FP32 throughput of 12.66 TFLOPS and nearly double the memory bandwidth give it raw specification advantages.

The RX Vega 64 also offers twice the memory capacity at 8 GB versus 6 GB, which matters for larger datasets. However, the RTX A3000 Mobile brings modern features the AMD card cannot match: RT cores, tensor cores, DirectX 12 Ultimate support, and a substantially lower 70 W power draw. The RX Vega 64's 295 W TDP and required 600 W power supply make it a far more demanding component.

The choice comes down to workload priority. Users targeting OpenCL compute, ray tracing, or AI-accelerated tasks should select the RTX A3000 Mobile. Users targeting Vulkan rendering or needing maximum memory bandwidth and capacity should select the RX Vega 64. The overall database scores favor the NVIDIA card, but the RX Vega 64 remains competitive in its specific areas of strength.