AMD Radeon Pro Vega 20 vs AMD Radeon RX 6700M Comparison

The AMD Radeon RX 6700M is the decisive winner in every direct comparison, delivering benchmark scores that are roughly three times higher than the AMD Radeon Pro Vega 20 across all tested workloads. The Pro Vega 20 holds no benchmark wins in the head-to-head data, losing all three tests by margins exceeding 65%, making the RX 6700M the clear choice for any workload where raw performance is the primary criterion.

Where Each One Wins

The performance split between these two mobile GPUs is absolute: the AMD Radeon RX 6700M wins every single benchmark in the comparison suite, while the AMD Radeon Pro Vega 20 records zero victories. The RX 6700M’s dominance is most pronounced in the Geekbench Vulkan test, where it scores 90816 against the Pro Vega 20’s 26410, a delta of -70.9% from the perspective of the older card. This indicates that the RX 6700M is not merely faster in a single API but holds a commanding lead across Metal, OpenCL, and Vulkan, suggesting a fundamental architectural advantage rather than optimization for a specific workload.

For users prioritizing compute performance in cross-platform environments, the RX 6700M’s Geekbench OpenCL score of 77666 dwarfs the Pro Vega 20’s 26679, a gap of -65.6%. This makes the RX 6700M the only rational choice for GPU-accelerated tasks such as rendering, simulation, or machine learning inference, where the extra shading units and higher clock speeds translate directly into throughput. The Pro Vega 20, with its average benchmark score of 27839, sits in the 73rd percentile of all GPUs, while the RX 6700M’s average of 25633 places it in the 71st percentile — an interesting statistical quirk where the older card has a slightly better relative standing despite losing every direct test.

The use-case split is therefore not about choosing the right tool for different jobs; it is about recognizing that the RX 6700M is the superior tool for all jobs measured. The Pro Vega 20’s only potential advantage lies in its lower thermal profile, with a TDP of 100 W compared to the RX 6700M’s 135 W, but this does not translate into any benchmark victory. For gaming, compute, or general GPU acceleration, the RX 6700M wins outright, and the Pro Vega 20 offers no redeeming performance metric in this dataset.

Architecture Differences

The two GPUs represent fundamentally different architectural generations from AMD. The Pro Vega 20 uses the Vega 12 chip built on the GCN 5.0 architecture, fabricated on a 14 nm process at GlobalFoundries, while the RX 6700M uses the Navi 22 chip on the RDNA 2.0 architecture, manufactured on a 7 nm process at TSMC. This process shrink from 14 nm to 7 nm allows the RX 6700M to pack 17,200 million transistors into a 335 mm² die, achieving a transistor density of 51.3M per mm², whereas the Pro Vega 20’s transistor count and die size are not specified in the data.

The core configurations diverge significantly. The RX 6700M features 2304 shading units, 144 texture mapping units, and 64 raster operation pipelines, while the Pro Vega 20 is equipped with 1280 shading units, 80 TMUs, and 32 ROPs. The RX 6700M also includes 36 dedicated ray tracing cores, a feature entirely absent from the Pro Vega 20, which has no ray tracing hardware listed. This architectural addition enables hardware-accelerated ray tracing on the RX 6700M, a capability that the older GCN-based card cannot offer.

Memory subsystems highlight another major generational shift. The Pro Vega 20 uses 4 GB of HBM2 on a 1024-bit bus, delivering 189.4 GB/s of bandwidth, while the RX 6700M uses 10 GB of GDDR6 on a 160-bit bus, achieving 320.0 GB/s. Despite the narrower bus, the RX 6700M’s faster memory clock of 2000 MHz (16 Gbps effective) versus the Pro Vega 20’s 740 MHz (1480 Mbps effective) results in nearly 70% more bandwidth. The RX 6700M also supports PCIe 4.0 x16, doubling the bus interface bandwidth of the Pro Vega 20’s PCIe 3.0 x16 connection.

Clock speeds further separate the two. The RX 6700M runs at a base clock of 1489 MHz with a boost of 2400 MHz and a game clock of 2300 MHz, while the Pro Vega 20 operates at 815 MHz base and 1283 MHz boost. This almost 2x boost clock advantage, combined with the higher core count, yields a fp32 throughput of 11.06 TFLOPS for the RX 6700M versus 3.284 TFLOPS for the Pro Vega 20. The RX 6700M also supports DirectX 12 Ultimate (12_2) and Vulkan 1.4, while the Pro Vega 20 is limited to DirectX 12 (12_1) and Vulkan 1.3, indicating support for newer graphics features on the RDNA 2.0 part.

Head-to-Head Benchmarks

The direct comparison data shows a clean sweep for the AMD Radeon RX 6700M, with the largest margin coming in the Geekbench Vulkan test. Here, the RX 6700M scores 90816 against the Pro Vega 20’s 26410, a delta of -70.9%. This means the RX 6700M delivers more than three times the Vulkan performance, making it uniquely suited for modern cross-platform games and compute applications that leverage this API. The Pro Vega 20’s Vulkan score of 26410 is the lowest of its three benchmark results, suggesting that its GCN architecture does not scale as efficiently with this newer API.

In Geekbench Metal, the RX 6700M posts 91911, its highest score of the three tests, against the Pro Vega 20’s 30427, a delta of -66.9%. This is the closest margin of the three, yet still represents a massive gap. The RX 6700M’s Metal performance indicates strong optimization for Apple’s ecosystem, which is notable given that the Pro Vega 20 was designed for Mac systems. The Pro Vega 20’s Metal score of 30427 is its best result, showing that it performs relatively better in this API than in others, but it remains far behind the newer card.

The Geekbench OpenCL test shows the RX 6700M scoring 77666 versus the Pro Vega 20’s 26679, a delta of -65.6%. This is the smallest percentage difference of the three, but still represents a 2.9x performance advantage for the RX 6700M. OpenCL is often used for general-purpose GPU computing, and the RX 6700M’s higher fp32 throughput of 11.06 TFLOPS compared to 3.284 TFLOPS directly explains its superiority in this workload. The Pro Vega 20’s fp16 performance of 6.569 TFLOPS (2:1) is also dwarfed by the RX 6700M’s 22.12 TFLOPS (2:1), reinforcing the compute gap.

Across all three benchmarks, the RX 6700M’s average score of 25633 is actually lower than the Pro Vega 20’s average of 27839, despite winning every head-to-head test. This paradox arises because the RX 6700M’s average includes additional benchmark results from PassMark tests, where it scores 13536 in G3D and 5191 in GPU compute, which lower its overall average relative to the Pro Vega 20’s limited benchmark suite. This highlights the importance of examining individual test results rather than relying solely on aggregate scores.

The Verdict

The data is unambiguous: the AMD Radeon RX 6700M should be selected for any application where performance matters, as it wins every benchmark by margins between 65.6% and 70.9%. Its 10 GB of GDDR6 memory, 2304 shading units, and 36 ray tracing cores make it the superior choice for gaming, content creation, and compute workloads. The RX 6700M’s support for DirectX 12 Ultimate and Vulkan 1.4 ensures compatibility with the latest graphics features, while its 7 nm process node indicates a more modern and efficient design.

The AMD Radeon Pro Vega 20, despite its higher percentile ranking of 73 versus the RX 6700M’s 71, offers no performance advantage in any measured test. Its 4 GB of HBM2 memory, while high-bandwidth for its era, is limited in capacity and its GCN 5.0 architecture lacks ray tracing support. The Pro Vega 20’s lower TDP of 100 W might appeal to systems with strict power budgets, but this is a qualitative advantage not reflected in the benchmark data, and the RX 6700M’s 135 W TDP is still within the range of mobile IGP solutions.

For users who prioritize raw compute or gaming performance, the RX 6700M is the only defensible choice. For those who require the specific feature set of the Pro Vega 20, such as its HBM2 memory or its integration into older Mac systems, the data offers no performance justification. The RX 6700M’s nearest rivals, including the AMD Radeon Pro W5700 and NVIDIA GeForce RTX 3080 Ti Mobile, are within 0.9% of its average score, indicating that it competes well with contemporary mobile GPUs, while the Pro Vega 20’s rivals include the NVIDIA GeForce RTX 3090, a desktop-class card, showing its performance class is closer to older high-end parts.

FAQ

Q: Which GPU wins the most benchmarks in the head-to-head comparison?

A: The AMD Radeon RX 6700M wins all three head-to-head benchmarks, while the AMD Radeon Pro Vega 20 wins zero.

Q: What is the largest performance gap between the two GPUs?

A: The largest gap is in Geekbench Vulkan, where the RX 6700M scores 90816 versus the Pro Vega 20’s 26410, a delta of -70.9%.

Q: How does the memory bandwidth compare between the two cards?

A: The RX 6700M has 320.0 GB/s of bandwidth from 10 GB of GDDR6 on a 160-bit bus, while the Pro Vega 20 has 189.4 GB/s from 4 GB of HBM2 on a 1024-bit bus.

Q: Does the Pro Vega 20 support ray tracing?

A: No, the Pro Vega 20 has no ray tracing cores listed, while the RX 6700M includes 36 ray tracing cores.

Q: What is the difference in fp32 compute performance?

A: The RX 6700M delivers 11.06 TFLOPS of fp32 performance, while the Pro Vega 20 delivers 3.284 TFLOPS.

Q: Which GPU has a higher percentile ranking among all GPUs?

A: The Pro Vega 20 has a percentile ranking of 73, which is higher than the RX 6700M’s percentile of 71, despite the RX 6700M winning all direct comparisons.

Specification Differences

| Specification | AMD Radeon Pro Vega 20 | AMD Radeon RX 6700M |

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

| Architecture | GCN 5.0 | RDNA 2.0 |

| Process Node | 14 nm | 7 nm |

| Foundry | GlobalFoundries | TSMC |

| Transistors | Not specified | 17,200 million |

| Die Size | Not specified | 335 mm² |

| Base Clock | 815 MHz | 1489 MHz |

| Boost Clock | 1283 MHz | 2400 MHz |

| Game Clock | Not specified | 2300 MHz |

| Memory Size | 4 GB | 10 GB |

| Memory Type | HBM2 | GDDR6 |

| Memory Bus Width | 1024 bit | 160 bit |

| Memory Bandwidth | 189.4 GB/s | 320.0 GB/s |

| Shading Units | 1280 | 2304 |

| TMUs | 80 | 144 |

| ROPs | 32 | 64 |

| Ray Tracing Cores | Not specified | 36 |

| Pixel Rate | 41.06 GPixel/s | 153.6 GPixel/s |

| Texture Rate | 102.6 GTexel/s | 345.6 GTexel/s |

| FP32 Performance | 3.284 TFLOPS | 11.06 TFLOPS |

| FP16 Performance | 6.569 TFLOPS (2:1) | 22.12 TFLOPS (2:1) |

| TDP | 100 W | 135 W |

| Bus Interface | PCIe 3.0 x16 | PCIe 4.0 x16 |

| DirectX Support | 12 (12_1) | 12 Ultimate (12_2) |

| Vulkan Support | 1.3 | 1.4 |