AMD Radeon RX 6700M vs NVIDIA RTX A4000 Mobile Comparison

Head-to-Head Benchmarks

The recorded data shows a clear split between these two mobile GPUs. The NVIDIA RTX A4000 Mobile wins the majority of head-to-head tests, taking 7 out of 9 comparisons, while the AMD Radeon RX 6700M secures 2 wins. However, the magnitude of those wins tells a more nuanced story.

The biggest single margin belongs to the AMD Radeon RX 6700M in the Geekbench Vulkan test. It scores 90,816 against the NVIDIA RTX A4000 Mobile's 73,002, a 24.4% advantage. This is the largest delta in either direction across all recorded benchmarks. The AMD part demonstrates a decisive lead in this low-level graphics API workload, which is notable for games and applications that leverage Vulkan.

The NVIDIA RTX A4000 Mobile counters with equally emphatic results in compute-oriented tests. In Geekbench OpenCL, it scores 97,178 versus AMD's 77,666, a 20.1% lead. The gap narrows slightly in Passmark GPU Compute, where NVIDIA scores 6,394 against AMD's 5,191, an 18.8% advantage. These two results indicate that the NVIDIA architecture handles general-purpose compute and OpenCL workloads substantially better than the AMD competitor.

In the remaining tests, NVIDIA wins by smaller margins. The Passmark DirectX 10 test shows NVIDIA at 105 versus AMD's 92, a 12.4% lead. Passmark G3D gives NVIDIA 14,796 against AMD's 13,536, an 8.5% advantage. The 2D performance test (Passmark G2D) shows NVIDIA at 585 versus AMD's 555, a 5.1% margin. The legacy DirectX 9 test is close: NVIDIA scores 157, AMD scores 155, a 1.3% difference. Even the DirectX 12 test, which is often a strong point for AMD's RDNA architecture, goes to NVIDIA by the narrowest of margins: 66 versus 65, a 1.5% delta.

The AMD Radeon RX 6700M's second win comes in Passmark DirectX 11, where it scores 129 against NVIDIA's 127, a 1.6% edge. This is a slim victory, but it shows the AMD part is competitive in that API generation.

Looking at aggregate averages, the AMD Radeon RX 6700M has a higher average benchmark score of 25,633 across all tests, compared to 21,379 for the NVIDIA RTX A4000 Mobile. The AMD part also ranks in the 71st percentile of all GPUs in the database, while the NVIDIA part sits in the 66th percentile. This aggregate picture is somewhat at odds with the head-to-head win count, which is explained by the fact that AMD's Vulkan win is so large, and the NVIDIA wins in several tests are relatively modest.

Where Each One Wins

The benchmark data supports a clear use-case split.

The AMD Radeon RX 6700M is the stronger choice for Vulkan-based workloads. The 24.4% lead in Geekbench Vulkan is the standout result, and it suggests that applications built on this modern cross-platform API will favor the AMD architecture. The DirectX 11 win, while narrow at 1.6%, also points to AMD holding its own in that legacy API tier. For gaming or professional applications that lean on Vulkan, the data indicates the RX 6700M is the better performer.

The NVIDIA RTX A4000 Mobile dominates compute and OpenCL scenarios. The 20.1% lead in Geekbench OpenCL and the 18.8% lead in Passmark GPU Compute are substantial. These are the tests that matter for GPU-accelerated computation, machine learning inference, and similar workloads that rely on general-purpose processing rather than graphics-specific APIs. The NVIDIA part also leads in DirectX 10 (12.4% ahead), DirectX 9 (1.3% ahead), DirectX 12 (1.5% ahead), and the overall Passmark G3D score (8.5% ahead). The G2D lead of 5.1% indicates better 2D performance as well.

For users who need a general-purpose mobile GPU with strong compute capabilities and broad API coverage, the NVIDIA RTX A4000 Mobile is the data-backed choice. For users who specifically target Vulkan-first applications, the AMD Radeon RX 6700M is the winner.

Architecture Differences

The two GPUs come from different manufacturers and use fundamentally different architectures. The AMD Radeon RX 6700M is built on the RDNA 2.0 architecture, using the Navi 22 chip, while the NVIDIA RTX A4000 Mobile uses the Ampere architecture with the GA104 chip. The AMD part is fabricated on a 7 nm process at TSMC, whereas the NVIDIA part uses an 8 nm process at Samsung. The process node difference gives AMD a transistor density advantage: 51.3 million transistors per square millimeter versus 44.4 million for NVIDIA.

The chip sizes and transistor counts are comparable. The AMD chip has a die size of 335 mm² with 17,200 million transistors. The NVIDIA chip is larger at 392 mm² and has 17,400 million transistors. Despite the smaller die, the AMD chip packs a slightly higher transistor density, which is a direct result of the more advanced 7 nm process.

Clock speeds diverge significantly. The AMD Radeon RX 6700M has a base clock of 1489 MHz and a boost clock of 2400 MHz, with a game clock of 2300 MHz. The NVIDIA RTX A4000 Mobile runs at a base clock of 1140 MHz and a boost clock of 1680 MHz. The AMD part's higher clocks contribute to its strong Vulkan result.

The memory subsystems are also different. The AMD part has 10 GB of GDDR6 memory on a 160-bit bus, delivering 320.0 GB/s of bandwidth with 16 Gbps effective memory speed. The NVIDIA part has 8 GB of GDDR6 on a wider 256-bit bus, delivering 384.0 GB/s of bandwidth with 12 Gbps effective memory speed. The NVIDIA part has the bandwidth advantage, while AMD offers more capacity.

Core counts favor NVIDIA. The AMD Radeon RX 6700M has 2304 shading units, 144 texture mapping units, and 64 render output units. The NVIDIA RTX A4000 Mobile has 5120 shading units, 160 TMUs, and 80 ROPs. The NVIDIA part also has 40 ray tracing cores and 160 tensor cores, while the AMD part has 36 ray tracing cores and no tensor cores.

The FP32 compute figures favor NVIDIA: 17.20 TFLOPS versus 11.06 TFLOPS for AMD. The FP16 situation is interesting: AMD delivers 22.12 TFLOPS using a 2:1 ratio, while NVIDIA delivers 17.20 TFLOPS with a 1:1 ratio. This means AMD's FP16 output is higher, but the NVIDIA part maintains consistent throughput across both precisions.

Power consumption is lower on the NVIDIA part at 115 W TDP, compared to 135 W for the AMD part. Both use PCIe 4.0 x16 interfaces and support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

The Verdict

The recorded data presents a clear choice based on workload type. The NVIDIA RTX A4000 Mobile is the stronger all-around performer, winning 7 of 9 head-to-head tests. Its compute capabilities are particularly impressive: a 20.1% lead in Geekbench OpenCL and an 18.8% lead in Passmark GPU Compute make it the obvious choice for compute-heavy tasks. The 8.5% lead in Passmark G3D and the wins across DirectX 9, 10, and 12 indicate broad graphics superiority in most API environments.

The AMD Radeon RX 6700M should be the pick for Vulkan-centric applications. The 24.4% lead in Geekbench Vulkan is the largest single margin in the comparison, and it is a decisive indicator of architectural advantage in that API. The DirectX 11 win, while small, adds another data point in AMD's favor.

The aggregate statistics favor AMD slightly: an average benchmark score of 25,633 versus 21,379, and a 71st percentile ranking versus 66th. However, this aggregate view is skewed by the size of the Vulkan win and the fact that the NVIDIA part's average is dragged down by its lower Vulkan score. When the head-to-head results are weighted, the NVIDIA part wins more tests and wins by larger margins in compute and general graphics.

For professional users running OpenCL-based simulations, rendering, or GPU compute, the NVIDIA RTX A4000 Mobile is the data-backed choice. For gamers or developers targeting Vulkan, the AMD Radeon RX 6700M offers a significant advantage. The NVIDIA part also uses less power at 115 W versus 135 W, which is relevant for mobile implementations.

FAQ

Q: Which GPU has the higher average benchmark score?

A: The AMD Radeon RX 6700M has an average benchmark score of 25,633, while the NVIDIA RTX A4000 Mobile averages 21,379.

Q: What is the biggest single benchmark margin between the two?

A: The AMD Radeon RX 6700M leads the Geekbench Vulkan test by 24.4%, scoring 90,816 against the NVIDIA RTX A4000 Mobile's 73,002.

Q: Which GPU performs better in OpenCL compute workloads?

A: The NVIDIA RTX A4000 Mobile leads Geekbench OpenCL by 20.1%, scoring 97,178 versus AMD's 77,666, and also leads Passmark GPU Compute by 18.8% with 6,394 versus 5,191.

Q: How do the two compare in memory bandwidth and capacity?

A: The NVIDIA RTX A4000 Mobile has 8 GB of GDDR6 on a 256-bit bus with 384.0 GB/s bandwidth, while the AMD Radeon RX 6700M has 10 GB on a 160-bit bus with 320.0 GB/s bandwidth.

Q: What are the transistor counts and process nodes?

A: The AMD Radeon RX 6700M uses a 7 nm process with 17,200 million transistors on a 335 mm² die. The NVIDIA RTX A4000 Mobile uses an 8 nm process with 17,400 million transistors on a 392 mm² die.

Q: Which GPU has more shading units and ray tracing cores?

A: The NVIDIA RTX A4000 Mobile has 5120 shading units and 40 ray tracing cores. The AMD Radeon RX 6700M has 2304 shading units and 36 ray tracing cores.