AMD Radeon Pro Duo vs AMD Radeon RX 7900 GRE Comparison

The AMD Radeon RX 7900 GRE and the AMD Radeon Pro Duo represent two distinct eras of AMD graphics engineering. The data shows a single shared benchmark result, yet that result is decisive. In the Geekbench OpenCL test, the RX 7900 GRE scores 167,913 points against the Pro Duo’s 35,860 points. This translates to a delta of 368.2% in favor of the newer card, making the performance gap generational rather than incremental. The Pro Duo’s average benchmark score of 35,860 places it in the 80th percentile of all GPUs, while the RX 7900 GRE’s average of 36,101 also sits in the 80th percentile. The rivalry data confirms the closeness of their overall averages, with the RX 7900 GRE leading the Pro Duo by a mere 0.7% in average score, despite the massive OpenCL disparity.

Head-to-Head Benchmarks

The only direct comparison available is the Geekbench OpenCL test, and the result is stark. The RX 7900 GRE delivers 167,913 points, while the Radeon Pro Duo manages 35,860 points. The winner is the RX 7900 GRE with a delta of 368.2%. This is not a marginal victory; it is a near-total overhaul of compute performance. For context, the Pro Duo’s nearest rival, the NVIDIA GeForce RTX 3080, scores 35,787 points, which is 0.2% behind the Pro Duo. Meanwhile, the RX 7900 GRE’s nearest rivals include the NVIDIA T1000 at 36,282 points (0.5% behind the GRE) and the AMD Radeon RX 5300M at 36,371 points (0.7% behind). The OpenCL result dwarfs these rival deltas, indicating that the Pro Duo cannot compete in raw compute throughput.

The RX 7900 GRE also holds a perfect win record in head-to-head benchmarks, with 1 win and 0 losses. The Pro Duo’s record is the inverse, with 0 wins and 1 loss. This binary outcome simplifies the analysis: any workload reliant on OpenCL performance will favor the RX 7900 GRE by a margin that rivals cannot bridge. The Pro Duo’s score of 35,860 is nearly identical to its average benchmark score, suggesting that its single benchmark entry is representative of its overall capability. In contrast, the RX 7900 GRE’s OpenCL score is far above its average of 36,101, indicating that this test highlights its strength. The data does not provide other overlapping tests, so the verdict rests on this single, overwhelming data point.

Architecture Differences

The architectural divide is fundamental. The RX 7900 GRE uses the Navi 31 chip based on RDNA 3.0 architecture, with the codename Plum Bonito, belonging to the Navi III (RX 7000) generation. It is fabricated on a 5 nm process at TSMC, housing 57,700 million transistors on a 529 mm² die. This yields a transistor density of 109.1M per mm². In contrast, the Radeon Pro Duo uses the Capsaicin chip based on GCN 3.0 architecture, from the Radeon Pro GCN generation. It is built on a 28 nm process, also at TSMC, with 8,900 million transistors on a larger 596 mm² die. Its transistor density is a much lower 14.9M per mm².

The memory subsystems are equally divergent. The RX 7900 GRE features 16 GB of GDDR6 memory on a 256-bit bus, providing 576.0 GB/s of bandwidth. The Pro Duo offers 4 GB of HBM memory on a massive 4096-bit bus, delivering 512.0 GB/s. Although the Pro Duo’s bus width is 16 times wider, its effective bandwidth is lower due to slower memory clocks (500 MHz base, 1000 Mbps effective) compared to the GRE’s 2250 MHz memory clock (18 Gbps effective). The RX 7900 GRE also brings modern features absent from the Pro Duo: 80 ray tracing cores, DirectX 12 Ultimate (12_2) support, and Vulkan 1.4. The Pro Duo lacks ray tracing cores, supports DirectX 12 (12_0) only, and offers Vulkan 1.2.170. The GRE’s pixel rate is 359.2 GPixel/s versus 64.00 GPixel/s, and its texture rate is 718.4 GTexel/s versus 256.0 GTexel/s.

FAQ

Q: Which GPU has a higher average benchmark score?

A: The AMD Radeon RX 7900 GRE has an average benchmark score of 36,101, while the AMD Radeon Pro Duo has an average of 35,860. The GRE leads by 0.7%.

Q: What is the biggest performance difference in the head-to-head results?

A: In the Geekbench OpenCL test, the RX 7900 GRE scores 167,913 versus the Pro Duo’s 35,860, resulting in a 368.2% advantage for the GRE.

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

A: The RX 7900 GRE provides 576.0 GB/s of bandwidth over a 256-bit bus with 16 GB GDDR6. The Pro Duo provides 512.0 GB/s over a 4096-bit bus with 4 GB HBM.

Q: Do both GPUs support the same DirectX version?

A: No. The RX 7900 GRE supports DirectX 12 Ultimate (12_2), while the Pro Duo supports DirectX 12 (12_0).

Q: Which GPU has ray tracing capabilities?

A: Only the RX 7900 GRE has ray tracing cores, with 80 RT cores. The Radeon Pro Duo has no ray tracing cores listed.

Q: What are the production statuses of the two cards?

A: The RX 7900 GRE is listed as Active in production, while the Radeon Pro Duo is End-of-life.

Specification Differences

The two cards differ across nearly every core specification. The RX 7900 GRE has 5,120 shading units, 320 texture mapping units (TMUs), and 160 raster operation units (ROPs). The Pro Duo has 4,096 shading units, 256 TMUs, and 64 ROPs. The RX 7900 GRE’s base clock is 1287 MHz, boost clock is 2245 MHz, and game clock is 1880 MHz; the Pro Duo has no listed base, boost, or game clocks. Memory clocks differ: the GRE runs at 2250 MHz (18 Gbps effective), while the Pro Duo runs at 500 MHz (1000 Mbps effective). The GRE’s FP32 compute is 45.98 TFLOPS and FP16 is 91.96 TFLOPS (2:1). The Pro Duo’s FP32 and FP16 are both 8.192 TFLOPS (1:1). Power draw is also distinct: the GRE has a TDP of 260 W with 2x 8-pin connectors and a suggested PSU of 600 W; the Pro Duo has a TDP of 350 W with 3x 8-pin connectors and a suggested PSU of 750 W.

The bus interface differs: the GRE uses PCIe 4.0 x16, while the Pro Duo uses PCIe 3.0 x16. Display outputs are different: the GRE has 1x HDMI 2.1a, 2x DisplayPort 2.1, and 1x USB Type-C; the Pro Duo has 1x HDMI 1.4a and 3x DisplayPort 1.2. Physical dimensions are close but not identical: the GRE is 276 mm long, 110 mm tall, and 51 mm wide; the Pro Duo is 277 mm long and 111 mm tall, with no width listed. The GRE’s launch MSRP is 549 USD, while the Pro Duo’s launch MSRP is 1,499 USD. The GRE was released on 2023-07-26, whereas the Pro Duo was released on 2016-04-25. Finally, the GRE is produced on a 5 nm process with 57,700 million transistors, while the Pro Duo uses a 28 nm process with 8,900 million transistors.

The Verdict

The data points to a clear conclusion: the AMD Radeon RX 7900 GRE is the superior card for virtually any compute or gaming scenario. Its 368.2% lead in Geekbench OpenCL is the only head-to-head result, and it is overwhelming. The GRE also has a higher average benchmark score (36,101 vs 35,860), more memory (16 GB vs 4 GB), higher bandwidth (576.0 GB/s vs 512.0 GB/s), more shading units (5,120 vs 4,096), and support for modern APIs like DirectX 12 Ultimate and Vulkan 1.4. The Pro Duo’s only advantage lies in its wider 4096-bit memory bus, but that does not translate to higher bandwidth or a better benchmark score.

The Pro Duo’s age is its undoing. Released in 2016, it is end-of-life, while the GRE is active. The Pro Duo’s 28 nm process and GCN 3.0 architecture cannot match the 5 nm RDNA 3.0 design in efficiency or raw performance. The GRE’s transistor density (109.1M / mm²) is over seven times that of the Pro Duo (14.9M / mm²), explaining the massive compute delta. For any user choosing between these two, the RX 7900 GRE is the only rational option based on the benchmark data. The Pro Duo offers no competitive advantage in any measured metric, and its higher launch MSRP (1,499 USD) compared to the GRE (549 USD) further underscores its obsolescence.

Where Each One Wins

The RX 7900 GRE wins in every category where data exists. It wins the only head-to-head benchmark (Geekbench OpenCL) by 368.2%. It wins on average benchmark score by 0.7%. It wins on memory capacity (16 GB vs 4 GB), memory bandwidth (576.0 GB/s vs 512.0 GB/s), shading units (5,120 vs 4,096), TMUs (320 vs 256), ROPs (160 vs 64), pixel rate (359.2 GPixel/s vs 64.00 GPixel/s), texture rate (718.4 GTexel/s vs 256.0 GTexel/s), and FP32 compute (45.98 TFLOPS vs 8.192 TFLOPS). It also wins on process node (5 nm vs 28 nm) and API support (DirectX 12 Ultimate vs DirectX 12).

The Radeon Pro Duo has no benchmark victories. Its only nominal advantages are a wider memory bus (4096 bit vs 256 bit), a slightly larger die (596 mm² vs 529 mm²), and a higher TDP allowance (350 W vs 260 W). However, these do not produce any superior performance metrics. The Pro Duo’s wider bus is offset by slower memory clocks and lower bandwidth. Its larger die is paired with far fewer transistors and lower density. Its higher TDP indicates less efficiency, not more capability. Therefore, the Pro Duo cannot be recommended for any workload based on the available data. The RX 7900 GRE is the definitive choice for gaming, compute, and professional tasks, with the Pro Duo serving only as a historical artifact with no competitive standing.