AMD Radeon PRO V620 vs AMD Radeon Pro VII Comparison

# AMD Radeon PRO V620 vs AMD Radeon Pro VII

The AMD Radeon PRO V620 and AMD Radeon Pro VII represent two distinct generations of AMD professional graphics, with the former built on RDNA 2.0 and the latter on GCN 5.1. Benchmark data shows the PRO V620 leads decisively in both shared tests, yet the Pro VII retains unique strengths in memory bandwidth and display connectivity that the newer card completely lacks. The average benchmark scores of 136,472 for the PRO V620 versus 97,131 for the Pro VII place them in the 96th and 93rd percentiles of all GPUs respectively, indicating both are high-end performers but with a clear hierarchy between them.

FAQ

Q: Which card has the higher average benchmark score?

A: The AMD Radeon PRO V620 scores 136,472 on average, which is 40.5% higher than the AMD Radeon Pro VII's 97,131. The PRO V620 sits in the 96th percentile of all GPUs, while the Pro VII sits in the 93rd percentile.

Q: How do the two cards compare in Vulkan performance?

A: In the geekbench_vulkan test, the PRO V620 scores 144,364 versus the Pro VII's 92,862, giving the PRO V620 a 55.5% advantage. This is the largest performance gap between the two cards in any shared benchmark.

Q: Does the Pro VII have any advantage in memory specifications?

A: Yes, the Pro VII features HBM2 memory with a 4096-bit bus width and 1.02 TB/s bandwidth, while the PRO V620 uses GDDR6 with a 256-bit bus and 512.0 GB/s bandwidth. The Pro VII's memory bandwidth is exactly double that of the PRO V620.

Q: What are the display output capabilities of each card?

A: The Radeon Pro VII offers 6x mini-DisplayPort 1.4a outputs, while the Radeon PRO V620 has no display outputs at all. This makes the Pro VII suitable for direct display connection, whereas the PRO V620 requires alternative methods for visual output.

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

A: The PRO V620 has 4,608 shading units and 72 ray tracing cores, while the Pro VII has 3,840 shading units and no ray tracing cores. The PRO V620 also has 288 TMUs versus 240 for the Pro VII, and 128 ROPs versus 64.

Q: What is the launch MSRP of the Pro VII?

A: The AMD Radeon Pro VII had a launch MSRP of 1,899 USD. The PRO V620 does not have a listed launch MSRP in the data.

Architecture Differences

The architectural divide between these two cards is fundamental. The PRO V620 uses the Navi 21 chip based on RDNA 2.0 architecture, while the Pro VII uses the Vega 20 chip based on GCN 5.1 architecture. This generational shift brings significant changes: RDNA 2.0 supports DirectX 12 Ultimate (12_2) and Vulkan 1.4, whereas GCN 5.1 only reaches DirectX 12 (12_1) and Vulkan 1.3. The PRO V620 also includes 72 ray tracing cores, a feature entirely absent from the Pro VII.

The transistor counts tell a story of increased complexity. The PRO V620 packs 26,800 million transistors on a 520 mm² die, while the Pro VII contains 13,230 million transistors on a 331 mm² die. This translates to a transistor density of 51.5M per mm² for the PRO V620 versus 40.0M per mm² for the Pro VII. Both are fabricated on TSMC's 7 nm process, but the newer architecture achieves higher density and greater feature integration.

Memory architecture differs dramatically. The PRO V620 uses 32 GB of GDDR6 on a 256-bit bus with 512.0 GB/s bandwidth, while the Pro VII uses 16 GB of HBM2 on a 4096-bit bus with 1.02 TB/s bandwidth. The Pro VII's HBM2 memory offers double the bandwidth despite half the capacity, reflecting a different design philosophy aimed at memory-intensive workloads. Clock speeds also diverge: the PRO V620 has a base clock of 1825 MHz and boost of 2200 MHz, compared to 1400 MHz base and 1700 MHz boost for the Pro VII. The PRO V620's memory runs at 2000 MHz (16 Gbps effective), while the Pro VII's memory runs at 1000 MHz (2 Gbps effective).

Feature support differences extend to power and physical design. The PRO V620 draws 300 W TDP with 2x 8-pin power connectors and a 700 W suggested PSU, while the Pro VII draws 250 W with 1x 6-pin + 1x 8-pin connectors and a 600 W suggested PSU. The PRO V620 measures 267 mm in length, 120 mm in height, and 50 mm in width, while the Pro VII is longer at 305 mm and shorter at 111 mm height with no width listed. Both are dual-slot cards with PCIe 4.0 x16 interfaces.

Where Each One Wins

The PRO V620 wins decisively in raw compute benchmarks. In geekbench_opencl, it scores 128,580 versus 90,148 for the Pro VII, a 42.6% advantage. In geekbench_vulkan, the gap widens to 55.5% with scores of 144,364 versus 92,862. The PRO V620 also leads in theoretical specifications: FP32 performance of 20.28 TFLOPS versus 13.06 TFLOPS, FP16 of 40.55 TFLOPS versus 26.11 TFLOPS, pixel rate of 281.6 GPixel/s versus 108.8 GPixel/s, and texture rate of 633.6 GTexel/s versus 408.0 GTexel/s.

The Pro VII's wins are narrower but distinct. Its HBM2 memory provides 1.02 TB/s bandwidth versus 512.0 GB/s for the PRO V620, making it potentially superior for memory-bound workflows that benefit from extreme bandwidth. The Pro VII also has 6x mini-DisplayPort 1.4a outputs, enabling direct multi-monitor setups, whereas the PRO V620 has no display outputs, requiring a separate solution for video output. The Pro VII's lower TDP of 250 W versus 300 W means it requires less power and a smaller suggested PSU (600 W versus 700 W), which may simplify system integration in some configurations.

The Pro VII also holds the distinction of having a Metal benchmark score of 108,383 in geekbench_metal, a test the PRO V620 does not have a recorded score for. This suggests the Pro VII has verified Metal performance capabilities that are not documented for the PRO V620.

Specification Differences

The two cards differ across nearly every specification category. Memory capacity: 32 GB versus 16 GB. Memory type: GDDR6 versus HBM2. Memory bus width: 256 bit versus 4096 bit. Memory bandwidth: 512.0 GB/s versus 1.02 TB/s. Shading units: 4,608 versus 3,840. TMUs: 288 versus 240. ROPs: 128 versus 64. Ray tracing cores: 72 versus none.

Clock speeds differ substantially: base clock of 1825 MHz versus 1400 MHz, boost clock of 2200 MHz versus 1700 MHz, and memory clock of 2000 MHz (16 Gbps effective) versus 1000 MHz (2 Gbps effective). FP32 performance: 20.28 TFLOPS versus 13.06 TFLOPS. FP16 performance: 40.55 TFLOPS versus 26.11 TFLOPS. Pixel rate: 281.6 GPixel/s versus 108.8 GPixel/s. Texture rate: 633.6 GTexel/s versus 408.0 GTexel/s.

Power and physical specs also diverge: TDP of 300 W versus 250 W, power connectors of 2x 8-pin versus 1x 6-pin + 1x 8-pin, suggested PSU of 700 W versus 600 W, length of 267 mm versus 305 mm, height of 120 mm versus 111 mm, and width of 50 mm versus no width listed. Display outputs: none versus 6x mini-DisplayPort 1.4a. DirectX support: 12 Ultimate (12_2) versus 12 (12_1). Vulkan support: 1.4 versus 1.3.

Release dates place them roughly 18 months apart: the Pro VII launched on 2020-05-12 with a launch MSRP of 1,899 USD, while the PRO V620 launched on 2021-11-03 with no listed MSRP. The Pro VII lists its predecessor as Radeon Pro Polaris and successor as Radeon Pro Navi, while the PRO V620 lists its predecessor as Radeon Pro Vega and has no successor listed. Both are marked as end-of-life production status.

Head-to-Head Benchmarks

The two shared benchmark tests both favor the PRO V620 decisively. In geekbench_opencl, the PRO V620 scores 128,580 against the Pro VII's 90,148, a delta of 42.6%. This substantial margin reflects the architectural advantages of RDNA 2.0, including higher clock speeds and more compute units. The PRO V620's 4,608 shading units operating at up to 2200 MHz clearly outperform the Pro VII's 3,840 shading units at up to 1700 MHz.

The geekbench_vulkan test shows an even larger gap. The PRO V620 scores 144,364 versus 92,862, a 55.5% delta. This nearly 51,500-point difference suggests that Vulkan workloads particularly benefit from the PRO V620's newer architecture, possibly due to better driver optimization or hardware features like ray tracing support that the Pro VII lacks. The PRO V620's Vulkan 1.4 support versus the Pro VII's Vulkan 1.3 may also contribute to this performance advantage.

The PRO V620 wins both head-to-head benchmarks, giving it a 2-0 record in direct comparisons. Its average benchmark score of 136,472 places it 40.5% above the Pro VII's 97,131. When comparing to their respective nearest rivals, the PRO V620 sits 0.5% above the Radeon Pro W6800X Duo and 0.8% above the Radeon PRO W6800, while the Pro VII sits 0.4% below the Radeon RX 7900M and 5% above the Radeon Instinct MI60. The PRO V620 also leads the Pro VII by 5% when comparing the latter to the NVIDIA Quadro RTX 6000, which scores 101,872.

The Verdict

The data clearly favors the AMD Radeon PRO V620 for most professional workloads. Its 42.6% advantage in OpenCL and 55.5% advantage in Vulkan benchmarks make it the superior choice for compute-intensive tasks like rendering, simulation, and machine learning inference. The 32 GB memory capacity doubles the Pro VII's 16 GB, accommodating larger datasets and models. The inclusion of 72 ray tracing cores and DirectX 12 Ultimate support future-proofs the card for emerging workloads that leverage these features.

However, the Pro VII is not without justification. Its 1.02 TB/s memory bandwidth is exactly double the PRO V620's 512.0 GB/s, making it potentially better suited for memory-bandwidth-bound applications such as certain scientific computing tasks or high-resolution texture streaming. The 6x mini-DisplayPort 1.4a outputs provide direct multi-display capability, which the PRO V620 cannot offer at all. The lower TDP of 250 W and smaller suggested PSU of 600 W may also appeal to system builders with power constraints.

The choice between these two cards depends heavily on workload priorities. For users requiring maximum compute throughput, newer architecture features, and larger memory capacity, the PRO V620 is the clear winner based on benchmark data. For users who need extreme memory bandwidth, direct display outputs, or lower power requirements, the Pro VII remains a viable option despite its lower raw performance. The Pro VII's launch MSRP of 1,899 USD provides a reference point for its positioning, though both cards are now end-of-life products. The benchmark data shows a decisive overall victory for the PRO V620, but the Pro VII's unique capabilities in memory and display connectivity ensure it remains relevant for specific professional applications.