AMD Radeon Pro Vega 16 vs AMD Radeon RX 6650 XT Comparison

FAQ

Q: Which GPU has the higher average benchmark score?

A: The AMD Radeon Pro Vega 16 records an average benchmark score of 23250, which places it at the 68th percentile among all GPUs. The AMD Radeon RX 6650 XT has an average score of 19765, at the 65th percentile, meaning the Pro Vega 16 leads in aggregate across all recorded tests.

Q: How do the two cards compare in Geekbench Metal performance?

A: The RX 6650 XT is dramatically ahead in Geekbench Metal, scoring 97969 versus 29650 for the Pro Vega 16. This represents a delta of 69.7% in favor of the RX 6650 XT, making it the clear winner in that specific API workload.

Q: Does the Pro Vega 16 win any benchmark against the RX 6650 XT?

A: Yes, the Pro Vega 16 wins the Geekbench OpenCL test with a score of 18268, while the RX 6650 XT scores 10111. The delta is 80.7% in favor of the Pro Vega 16, a substantial margin in that compute-oriented test.

Q: What are the memory specifications for each card?

A: The Pro Vega 16 uses 4 GB of HBM2 memory on a 1024-bit bus, yielding 307.2 GB/s of bandwidth. The RX 6650 XT uses 8 GB of GDDR6 memory on a 128-bit bus, with 280.3 GB/s of bandwidth. The Pro Vega 16 has a wider bus and higher bandwidth, while the RX 6650 XT has double the capacity.

Q: Which card has higher raw shader throughput?

A: The RX 6650 XT delivers 10.79 TFLOPS of FP32 performance with 2048 shading units, while the Pro Vega 16 delivers 2.437 TFLOPS with 1024 shading units. The RX 6650 XT is roughly 4.4 times faster in FP32 throughput on paper.

Q: What is the launch status and release timeline for these products?

A: Both are end-of-life products. The Pro Vega 16 was released on 2018-11-13, and the RX 6650 XT was released on 2022-05-09. The RX 6650 XT has a recorded launch MSRP of 399 USD.

Architecture Differences

The two GPUs represent entirely different architectural generations from AMD. The Radeon Pro Vega 16 is built on the GCN 5.0 architecture with the Vega 12 chip, fabricated on a 14 nm process at GlobalFoundries. The Radeon RX 6650 XT uses the RDNA 2.0 architecture with the Navi 23 chip, manufactured on a 7 nm process at TSMC. This process difference alone, from 14 nm to 7 nm, enables the RX 6650 XT to pack significantly more transistors: 11,060 million on a 237 mm² die, giving a transistor density of 46.7M per mm². The Pro Vega 16's transistor count and die size are not recorded in the database.

The RX 6650 XT introduces hardware ray tracing with 32 RT cores, a feature entirely absent from the Pro Vega 16, which lists no RT cores. The shading unit count doubles from 1024 on the Pro Vega 16 to 2048 on the RX 6650 XT, and texture mapping units double from 64 to 128. Raster output units also double from 32 to 64. These structural changes directly explain the large throughput differences in pixel and texture rates observed in the specification data.

Clock speeds reflect the architectural shift as well. The Pro Vega 16 runs at a base of 815 MHz and a boost of 1190 MHz, while the RX 6650 XT runs at a base of 2055 MHz and a boost of 2635 MHz, with a game clock of 2410 MHz. The RX 6650 XT also supports a higher memory clock of 2190 MHz (17.5 Gbps effective) versus 1200 MHz (2.4 Gbps effective) on the Pro Vega 16.

The memory subsystem diverges fundamentally. The Pro Vega 16 uses HBM2 with a 1024-bit bus, achieving 307.2 GB/s bandwidth from 4 GB capacity. The RX 6650 XT uses GDDR6 with a 128-bit bus, achieving 280.3 GB/s from 8 GB capacity. The Pro Vega 16 has a wider memory interface and slightly higher bandwidth, but the RX 6650 XT offers double the capacity, which matters for modern workloads.

API support differs as well. The Pro Vega 16 supports DirectX 12 (12_1), OpenGL 4.6, and Vulkan 1.3. The RX 6650 XT supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The RX 6650 XT's DirectX 12 Ultimate support includes features tied to newer rendering pipelines, while the Pro Vega 16 is limited to the older 12_1 feature level.

Power characteristics show a stark contrast. The Pro Vega 16 is rated at 75 W TDP and is an IGP form factor, meaning it is integrated into a portable device. The RX 6650 XT is a dual-slot card rated at 176 W TDP, requiring a single 8-pin power connector and a suggested 450 W power supply. The RX 6650 XT also uses PCIe 4.0 x8, while the Pro Vega 16 uses PCIe 3.0 x16.

The Verdict

The benchmark data presents a split picture that depends heavily on the workload. For Metal and Vulkan API performance, the RX 6650 XT is overwhelmingly superior. In Geekbench Metal, it scores 97969 versus 29650 for the Pro Vega 16, a 69.7% advantage. In Geekbench Vulkan, it scores 81306 versus 21832, a 73.1% advantage. These are not marginal wins; they represent generational leaps in graphics throughput.

However, the Pro Vega 16 wins the Geekbench OpenCL test decisively, scoring 18268 versus 10111 for the RX 6650 XT, an 80.7% margin. This suggests that for certain compute workloads using OpenCL, the older GCN architecture retains a significant advantage. The Pro Vega 16's higher memory bandwidth, 307.2 GB/s versus 280.3 GB/s, may contribute to this result, along with its wider 1024-bit bus.

The aggregate average benchmark score favors the Pro Vega 16 at 23250 versus 19765 for the RX 6650 XT, a difference driven by the OpenCL result offsetting the RX 6650 XT's wins in the other two tests. The percentile rankings place the Pro Vega 16 at 68 and the RX 6650 XT at 65, reinforcing that the Pro Vega 16 has the higher overall standing in the database.

Who should pick which depends on the use case. Users targeting Metal-based applications, such as macOS ecosystems, should choose the RX 6650 XT without hesitation, given its 97969 Metal score. Vulkan-centric workloads also strongly favor the RX 6650 XT. Those relying on OpenCL compute acceleration, particularly in environments where that API is preferred, would find the Pro Vega 16 surprisingly capable. The Pro Vega 16's IGP form factor and 75 W TDP also make it suitable for portable or power-constrained designs, whereas the RX 6650 XT requires a dual-slot card with external power.

The RX 6650 XT offers double the memory capacity at 8 GB, which is a practical advantage for larger textures and datasets. It also brings ray tracing hardware and newer API support, including DirectX 12 Ultimate and Vulkan 1.4. These features make it the more future-proof option for modern gaming and graphics workloads.

The Pro Vega 16, despite being older and less capable in raw shading throughput, outperforms the RX 6650 XT in OpenCL by a wide margin. This is a notable anomaly in the data, suggesting that architectural efficiency for compute tasks does not always align with newer process nodes or higher clock speeds. The database records one win for the Pro Vega 16 and two wins for the RX 6650 XT in head-to-head benchmarks.

Specification Differences

| Specification | AMD Radeon Pro Vega 16 | AMD Radeon RX 6650 XT |

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

| Chip | Vega 12 | Navi 23 |

| Architecture | GCN 5.0 | RDNA 2.0 |

| Process Node | 14 nm | 7 nm |

| Foundry | GlobalFoundries | TSMC |

| Transistors | Not recorded | 11,060 million |

| Die Size | Not recorded | 237 mm² |

| Transistor Density | Not recorded | 46.7M / mm² |

| Base Clock | 815 MHz | 2055 MHz |

| Boost Clock | 1190 MHz | 2635 MHz |

| Game Clock | Not recorded | 2410 MHz |

| Memory Clock | 1200 MHz (2.4 Gbps effective) | 2190 MHz (17.5 Gbps effective) |

| Memory Size | 4 GB | 8 GB |

| Memory Type | HBM2 | GDDR6 |

| Memory Bus Width | 1024 bit | 128 bit |

| Memory Bandwidth | 307.2 GB/s | 280.3 GB/s |

| Shading Units | 1024 | 2048 |

| TMUs | 64 | 128 |

| ROPs | 32 | 64 |

| RT Cores | Not recorded | 32 |

| Pixel Rate | 38.08 GPixel/s | 168.6 GPixel/s |

| Texture Rate | 76.16 GTexel/s | 337.3 GTexel/s |

| FP32 | 2.437 TFLOPS | 10.79 TFLOPS |

| FP16 | 4.874 TFLOPS (2:1) | 21.59 TFLOPS (2:1) |

| TDP | 75 W | 176 W |

| Slot Width | IGP | Dual-slot |

| Power Connectors | Not recorded | 1x 8-pin |

| Suggested PSU | Not recorded | 450 W |

| Bus Interface | PCIe 3.0 x16 | PCIe 4.0 x8 |

| Display Outputs | Portable Device Dependent | 1x HDMI 2.1, 3x DisplayPort 1.4a |

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

| Vulkan | 1.3 | 1.4 |

| Release Date | 2018-11-13 | 2022-05-09 |

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

| Launch MSRP | Not recorded | 399 USD |

Head-to-Head Benchmarks

The recorded head-to-head benchmarks cover three tests, with the RX 6650 XT winning two and the Pro Vega 16 winning one. The single largest margin is in Geekbench Vulkan, where the RX 6650 XT scores 81306 against the Pro Vega 16's 21832. This is a delta of 73.1%, meaning the RX 6650 XT is nearly four times faster in this API. Vulkan is increasingly used in cross-platform games and compute applications, so this gap indicates a substantial real-world advantage for the newer card.

Geekbench Metal shows a similar pattern. The RX 6650 XT scores 97969, while the Pro Vega 16 scores 29650, a delta of 69.7%. Metal is the primary graphics API for Apple platforms, and this result strongly favors the RX 6650 XT for any macOS or iOS-adjacent workload. The absolute score of 97969 is more than three times the Pro Vega 16's result, underscoring the architectural efficiency of RDNA 2.0.

The Pro Vega 16's win comes in Geekbench OpenCL, where it scores 18268 versus 10111 for the RX 6650 XT, a delta of 80.7%. This is the largest margin of any head-to-head test, and it is particularly striking given the RX 6650 XT's much higher FP32 throughput of 10.79 TFLOPS versus 2.437 TFLOPS. The OpenCL result suggests that the Pro Vega 16's GCN architecture is better optimized for this specific API, or that the RX 6650 XT's drivers or hardware handle OpenCL poorly. The Pro Vega 16's higher memory bandwidth of 307.2 GB/s may also play a role in compute-heavy OpenCL workloads.

The average benchmark score comparison further contextualizes these results. The Pro Vega 16 has an average of 23250, and its nearest rival is the NVIDIA P106-100 with an average of 23249, a delta of 0%. The AMD Radeon RX 6600M and AMD Radeon R9 M290X are also within 0.1% of the Pro Vega 16's score. This places the Pro Vega 16 in a tight cluster of mid-range performers. The RX 6650 XT, with an average of 19765, sits near the NVIDIA Tesla K40m at 19885 (0.6% higher) and the AMD FirePro W7000 at 19905 (0.7% higher). The RX 6650 XT's nearest rivals are older professional cards, suggesting its aggregate score is pulled down by the unusually low OpenCL result.

In the head-to-head tally, the RX 6650 XT takes two wins with an average delta of 71.4% across its victories, while the Pro Vega 16 takes one win with an 80.7% margin. The overall win count favors the RX 6650 XT, but the magnitude of the Pro Vega 16's OpenCL win is large enough to affect the average benchmark score, keeping the Pro Vega 16 ahead in that aggregate metric.

The data shows that benchmark selection heavily influences the perceived performance hierarchy. Users who rely on average scores would see the Pro Vega 16 as the stronger card. Users who prioritize modern graphics APIs would see the RX 6650 XT as the clear choice. The 75 W TDP of the Pro Vega 16 versus 176 W for the RX 6650 XT also indicates very different deployment scenarios, with the former suited for integrated or portable systems and the latter for full-size desktop builds.