AMD Radeon Instinct MI60 vs AMD Radeon PRO W7900 Comparison

# AMD Radeon PRO W7900 vs AMD Radeon Instinct MI60

The AMD Radeon PRO W7900 and AMD Radeon Instinct MI60 represent two distinct generations of AMD professional GPU design, separated by nearly five years of architectural evolution. The W7900, built on RDNA 3.0 with a 5 nm process, targets modern workstation workloads with ray tracing support, while the MI60, based on GCN 5.1 on 7 nm, was AMD's early data-center compute accelerator. Benchmark data shows a fascinating split: the older MI60 actually wins in OpenCL performance by 8.8%, while the W7900 dominates Vulkan by a massive 48.3% margin. This divergence reveals how different API optimizations and architectural priorities shape real-world performance.

FAQ

Q: Which card has the higher average benchmark score?

A: The AMD Radeon PRO W7900 posts an average benchmark score of 110,725, compared to 92,466 for the AMD Radeon Instinct MI60. This puts the W7900 in the 94th percentile of all GPUs, while the MI60 sits just behind in the 93rd percentile.

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

A: The W7900 features 48 GB of GDDR6 memory on a 384-bit bus, delivering 864.0 GB/s bandwidth. The MI60 has 32 GB of HBM2 memory on a 4096-bit bus, achieving 1.02 TB/s bandwidth. Despite having less capacity, the MI60's HBM2 memory provides higher raw bandwidth.

Q: Which card supports ray tracing hardware?

A: Only the AMD Radeon PRO W7900 includes dedicated ray tracing cores, with 96 RT cores listed in its specifications. The AMD Radeon Instinct MI60 has no RT cores at all, reflecting its data-center compute focus rather than graphics rendering.

Q: What is the transistor and process technology difference?

A: The W7900 uses a 5 nm process at TSMC with 57,700 million transistors on a 529 mm² die, achieving a density of 109.1M transistors per mm². The MI60 uses a 7 nm process with 13,230 million transistors on a 331 mm² die, for 40.0M transistors per mm². The W7900 packs over four times the transistors.

Q: What is the production status of each card?

A: The AMD Radeon PRO W7900 is listed as "Active" production, having been released on 2023-05-25. The AMD Radeon Instinct MI60 is "End-of-life," with a release date of 2018-11-17, making it a legacy product.

Q: How do the cards compare in DirectX support?

A: The W7900 supports DirectX 12 Ultimate (12_2), while the MI60 is limited to DirectX 12 (12_1). This reflects the W7900's newer architecture and feature set, including support for the latest graphics APIs.

Architecture Differences

The architectural divide between these two AMD cards is substantial. The Radeon PRO W7900 employs the Navi 31 chip under the RDNA 3.0 architecture, codenamed "Plum Bonito," part of the Radeon Pro Navi (Navi III Series) generation. The Radeon Instinct MI60 uses the Vega 20 chip with GCN 5.1 architecture, belonging to the Radeon Instinct (MIx) generation. This generational gap manifests in virtually every specification.

Process technology differences are stark: the W7900 is fabricated on TSMC's 5 nm node, while the MI60 uses the older 7 nm node. Transistor counts reflect this advancement — the W7900 contains 57,700 million transistors versus 13,230 million for the MI60, a 4.4x difference. Die size also differs, with the W7900 measuring 529 mm² versus 331 mm² for the MI60, though the W7900's much higher transistor density (109.1M per mm² vs 40.0M per mm²) shows the node advantage.

Compute resources tell a similar story. The W7900 has 6,144 shading units, 384 TMUs, and 192 ROPs, compared to the MI60's 4,096 shading units, 256 TMUs, and 64 ROPs. The W7900 also adds 96 ray tracing cores, a feature completely absent from the MI60. Clock speeds are substantially higher on the W7900: 1760 MHz base and 2495 MHz boost versus 1200 MHz base and 1800 MHz boost. Peak theoretical performance follows suit — the W7900 delivers 61.32 TFLOPS FP32 and 61.32 TFLOPS FP16 (1:1 ratio), while the MI60 manages 14.75 TFLOPS FP32 and 29.49 TFLOPS FP16 (2:1 ratio).

Memory subsystems diverge in type and configuration. The W7900 uses 48 GB of GDDR6 with a 384-bit bus and 864.0 GB/s bandwidth. The MI60 uses 32 GB of HBM2 with a 4096-bit bus and higher 1.02 TB/s bandwidth. The MI60's wider bus and HBM2 technology give it a bandwidth advantage despite lower capacity and much slower memory clocks (1000 MHz / 2 Gbps effective versus 2250 MHz / 18 Gbps effective for the W7900).

The Verdict

The data presents a nuanced picture. For modern graphics-intensive workstation tasks, the AMD Radeon PRO W7900 is the clear choice. Its 48.3% Vulkan lead over the MI60, combined with ray tracing support, DirectX 12 Ultimate compatibility, and 4.2x higher FP32 throughput, makes it overwhelmingly more capable for contemporary rendering workloads. The W7900's active production status and newer architecture indicate ongoing driver support and ecosystem relevance.

For compute-oriented workloads that primarily use OpenCL, the AMD Radeon Instinct MI60's 8.8% advantage is notable but must be weighed against its end-of-life status. While the MI60 wins in OpenCL and offers higher memory bandwidth (1.02 TB/s vs 864.0 GB/s), its lower compute throughput, lack of ray tracing, and aging GCN architecture limit its future utility. The MI60's 32 GB HBM2 memory may still serve specific high-bandwidth compute tasks, but the W7900's larger 48 GB capacity and superior overall specifications make it the more versatile card.

The W7900's 94th percentile ranking versus the MI60's 93rd percentile, combined with the average benchmark scores (110,725 vs 92,466), suggests the W7900 is the better all-around performer. The MI60's specific OpenCL strength is an outlier rather than a general trend. Most buyers should choose the W7900 unless they have workloads specifically optimized for the MI60's GCN architecture and OpenCL performance.

Specification Differences

| Specification | AMD Radeon PRO W7900 | AMD Radeon Instinct MI60 |

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

| Architecture | RDNA 3.0 | GCN 5.1 |

| Process Node | 5 nm | 7 nm |

| Transistors | 57,700 million | 13,230 million |

| Die Size | 529 mm² | 331 mm² |

| Transistor Density | 109.1M / mm² | 40.0M / mm² |

| Base Clock | 1760 MHz | 1200 MHz |

| Boost Clock | 2495 MHz | 1800 MHz |

| Memory Size | 48 GB | 32 GB |

| Memory Type | GDDR6 | HBM2 |

| Memory Bus | 384 bit | 4096 bit |

| Memory Bandwidth | 864.0 GB/s | 1.02 TB/s |

| Memory Clock | 2250 MHz (18 Gbps effective) | 1000 MHz (2 Gbps effective) |

| Shading Units | 6144 | 4096 |

| TMUs | 384 | 256 |

| ROPs | 192 | 64 |

| RT Cores | 96 | None |

| Pixel Rate | 479.0 GPixel/s | 115.2 GPixel/s |

| Texture Rate | 958.1 GTexel/s | 460.8 GTexel/s |

| FP32 | 61.32 TFLOPS | 14.75 TFLOPS |

| FP16 | 61.32 TFLOPS (1:1) | 29.49 TFLOPS (2:1) |

| TDP | 295 W | 300 W |

| Slot Width | Triple-slot | Dual-slot |

| Power Connectors | 2x 8-pin | 1x 6-pin + 1x 8-pin |

| Suggested PSU | 600 W | 700 W |

| Display Outputs | 3x DisplayPort 2.1, 1x mini-DisplayPort 2.1 | 1x mini-DisplayPort 1.4a |

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

| Vulkan | 1.4 | 1.3 |

| Dimensions | 280 mm x 110 mm x 51 mm | 267 mm x 111 mm |

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

| Release Date | 2023-05-25 | 2018-11-17 |

Head-to-Head Benchmarks

The Geekbench results reveal a fascinating performance split. In the OpenCL test, the AMD Radeon Instinct MI60 scores 92,488 against the W7900's 84,379, giving the MI60 an 8.8% win. This result is counterintuitive given the W7900's vastly superior specifications — 4.2x higher FP32 throughput and 2.1x higher FP16 output. The MI60's advantage likely stems from its HBM2 memory architecture and GCN's maturity in OpenCL compute workloads.

The Vulkan benchmark tells a completely different story. The W7900 achieves 137,070, crushing the MI60's 92,444 by 48.3%. This massive delta reflects the W7900's modern RDNA 3.0 architecture, which includes dedicated ray tracing hardware and significantly higher clock speeds. The MI60's GCN architecture, designed before Vulkan's widespread adoption, appears poorly optimized for this API.

Context from nearest rivals helps interpret these scores. The W7900's average score of 110,725 sits 1% above the AMD Radeon Pro Vega II (109,617) and 3.2% above the AMD Radeon Pro W6600X (107,342), while trailing the NVIDIA Tesla V100 SXM2 16 GB (114,395) by 3.2% and the NVIDIA RTX A5500 Mobile (113,944) by 2.8%. The MI60's 92,466 average is 0.9% above the NVIDIA RTX A4500 (91,671) and 1.5% above the RTX A4500 Mobile (91,134), but 4.8% below the AMD Radeon Pro VII (97,131) and 5.2% below the AMD Radeon RX 7900M (97,487).

Where Each One Wins

The AMD Radeon Instinct MI60 claims victory in OpenCL compute benchmarks, posting 92,488 versus the W7900's 84,379. Its 1.02 TB/s memory bandwidth and 4,096-bit bus give it an edge in memory-bandwidth-sensitive compute tasks. The MI60's 2:1 FP16 ratio (29.49 TFLOPS) also suggests optimization for certain half-precision workloads, though its FP32 performance is much lower at 14.75 TFLOPS. Its dual-slot form factor and single 6-pin plus 8-pin power requirement make it physically smaller than the W7900's triple-slot design.

The AMD Radeon PRO W7900 dominates Vulkan with a 48.3% margin (137,070 vs 92,444), making it the clear choice for modern graphics APIs. Its 96 RT cores enable hardware-accelerated ray tracing, a feature entirely absent from the MI60. The W7900's 61.32 TFLOPS FP32 and FP16 performance, 479.0 GPixel/s pixel rate, and 958.1 GTexel/s texture rate provide massive raw throughput. Display outputs include three DisplayPort 2.1 connectors plus one mini-DisplayPort 2.1, versus the MI60's single mini-DisplayPort 1.4a. The W7900 also supports Vulkan 1.4 and DirectX 12 Ultimate, compared to the MI60's Vulkan 1.3 and DirectX 12 (12_1), ensuring broader compatibility with current software.

For memory capacity, the W7900's 48 GB GDDR6 exceeds the MI60's 32 GB HBM2, though the MI60 counters with higher bandwidth. The W7900's newer 5 nm process and 109.1M transistors per mm² density indicate architectural efficiency that the older 7 nm MI60 cannot match. The W7900's active production status versus the MI60's end-of-life status means ongoing availability and support for the former.