AMD Radeon Instinct MI60 vs AMD Radeon Pro W6600M Comparison

The AMD Radeon Instinct MI60 and the AMD Radeon Pro W6600M occupy very different corners of the AMD professional lineup. The MI60 is a high-end data center accelerator built on the Vega 20 chip, while the W6600M is a mobile workstation part using the Navi 23 chip. Benchmark data from the database shows a clear overall winner, but the architecture and intended use case of each card tell a more nuanced story. The recorded measurements place the MI60 in the 93rd percentile of all GPUs, while the W6600M sits in the 89th percentile. These are both strong performers, but they achieve their results through fundamentally different designs.

Where Each One Wins

The MI60 wins outright in raw compute performance. In the Geekbench OpenCL test, the MI60 scored 92,488 against the W6600M’s 56,140, a 64.7% advantage. This is the kind of lead that matters for compute-heavy workloads like scientific simulation, machine learning training, and large-scale data processing. The MI60’s average benchmark score of 92,466 places it just ahead of the NVIDIA RTX A4500 (91,671, 0.9% lead) and the RTX A4500 Mobile (91,134, 1.5% lead). It trails the AMD Radeon Pro VII (97,131, -4.8%) and the AMD Radeon RX 7900M (97,487, -5.2%), but those are both larger, more power-hungry parts. The MI60’s closest competitors are all full-size workstation or data center cards, which tells you the MI60 is competing in a completely different weight class than the W6600M.

The W6600M wins on efficiency and mobile suitability, though the data does not directly quantify power consumption beyond the listed thermal design power. The W6600M is rated at 90 W, while the MI60 is rated at 300 W. That difference is stark. The W6600M is an integrated graphics package (IGP) with no dedicated power connectors, meaning it is designed to be soldered onto a laptop motherboard and run entirely off the system power delivery. The MI60 is a dual-slot card requiring a 1x 6-pin plus 1x 8-pin power connector and a 700 W suggested power supply. For a portable workstation, the W6600M is the only viable choice between these two. Its Vulkan score of 67,652 is also relatively stronger than its OpenCL score, indicating the RDNA 2 architecture handles modern graphics APIs well. The MI60’s Vulkan score of 92,444 is still far ahead, but the W6600M’s 36.6% deficit in Vulkan is less severe than its 64.7% deficit in OpenCL.

Architecture Differences

The two cards represent two distinct generations of AMD GPU design. The MI60 uses the Vega 20 chip built on GCN 5.1 architecture, while the W6600M uses the Navi 23 chip built on RDNA 2.0. Both are manufactured on a 7 nm process at TSMC, but the transistor density differs. The MI60 packs 13,230 million transistors on a 331 mm² die, for a density of 40.0M per mm². The W6600M has 11,060 million transistors on a smaller 237 mm² die, achieving a higher density of 46.7M per mm². The smaller, denser chip on the W6600M is a sign of a more modern design that uses its silicon area more efficiently.

The MI60’s compute core is substantially larger. It has 4,096 shading units, 256 texture mapping units, and 64 raster output units. The W6600M has 1,792 shading units, 112 TMUs, and 64 ROPs. The MI60 has twice the shading units and more than twice the TMUs, which explains its massive lead in texture fill rate (460.8 GTexel/s versus 227.8 GTexel/s) and FP32 throughput (14.75 TFLOPS versus 7.290 TFLOPS). The MI60 also leads in pixel rate, but by a smaller margin: 115.2 GPixel/s versus 130.2 GPixel/s. The W6600M actually wins pixel rate despite having far fewer ROPs, which suggests its RDNA 2 architecture processes pixels more efficiently per clock.

The MI60 has no dedicated ray tracing cores, while the W6600M includes 28 ray tracing cores. This is a significant feature gap. The MI60 supports DirectX 12 (12_1), while the W6600M supports DirectX 12 Ultimate (12_2), which includes ray tracing and other modern features. The W6600M also supports Vulkan 1.4, while the MI60 supports Vulkan 1.3. The MI60 is a compute-first card, not a graphics card, so the lack of ray tracing hardware is expected. But for any workload that uses DirectX Raytracing or Vulkan ray tracing, the W6600M is the only option here.

Memory architecture is another major split. The MI60 uses 32 GB of HBM2 on a 4096-bit bus, delivering 1.02 TB/s of bandwidth. The W6600M uses 8 GB of GDDR6 on a 128-bit bus, delivering 224.0 GB/s. The MI60 has four times the memory capacity and nearly five times the bandwidth. For large datasets that must reside in GPU memory, the MI60 is in a different league. The W6600M’s 8 GB is sufficient for a mobile workstation doing typical CAD, rendering, or light compute, but it would be a hard limit for large-scale AI or scientific workloads.

FAQ

Q: Which card is faster in OpenCL compute workloads?

A: The MI60 wins decisively. It scored 92,488 in Geekbench OpenCL versus 56,140 for the W6600M, a 64.7% lead. The MI60’s 4,096 shading units and 14.75 TFLOPS FP32 throughput drive this advantage.

Q: Can the W6600M handle ray tracing?

A: Yes. The W6600M includes 28 ray tracing cores and supports DirectX 12 Ultimate (12_2). The MI60 has no ray tracing cores and only supports DirectX 12 (12_1), so it cannot accelerate ray traced workloads.

Q: How much memory bandwidth does each card have?

A: The MI60 has 1.02 TB/s of bandwidth from its 4096-bit HBM2 interface. The W6600M has 224.0 GB/s from its 128-bit GDDR6 interface. The MI60’s bandwidth is roughly 4.5 times higher.

Q: Which card is suitable for a laptop?

A: The W6600M is the only choice. It is rated at 90 W, uses no power connectors, and is classified as an IGP form factor. The MI60 is a 300 W dual-slot card requiring external power and a 700 W power supply.

Q: Do these cards support the same graphics APIs?

A: Both support OpenGL 4.6. The MI60 supports DirectX 12 (12_1) and Vulkan 1.3. The W6600M supports DirectX 12 Ultimate (12_2) and Vulkan 1.4, giving it access to newer features like ray tracing.

Q: How do their average benchmark scores compare to nearby rivals?

A: The MI60’s average score of 92,466 is 0.9% ahead of the NVIDIA RTX A4500 and 1.5% ahead of the RTX A4500 Mobile. The W6600M’s average score of 61,896 is 0.3% behind the AMD Radeon 8050S, 2.6% ahead of the NVIDIA GeForce RTX 4090, 2.6% ahead of the Intel Arc Pro A60, and 2.9% ahead of the AMD Radeon Pro Vega 48.

Specification Differences

The two cards differ across nearly every major specification. The MI60 uses the Vega 20 chip with GCN 5.1 architecture, while the W6600M uses the Navi 23 chip with RDNA 2.0. The MI60 has 13,230 million transistors on a 331 mm² die, while the W6600M has 11,060 million on 237 mm². Transistor density is 40.0M per mm² for the MI60 and 46.7M per mm² for the W6600M. Base clocks are similar (1200 MHz for the MI60, 1224 MHz for the W6600M), but boost clocks differ significantly: 1800 MHz for the MI60 versus 2034 MHz for the W6600M. Memory clocks also differ, with the MI60 running at 1000 MHz (2 Gbps effective) and the W6600M at 1750 MHz (14 Gbps effective).

Memory capacity is 32 GB of HBM2 for the MI60 versus 8 GB of GDDR6 for the W6600M. Bus width is 4096 bit versus 128 bit. Bandwidth is 1.02 TB/s versus 224.0 GB/s. The MI60 has 4,096 shading units, 256 TMUs, and 64 ROPs. The W6600M has 1,792 shading units, 112 TMUs, and 64 ROPs. The MI60 has no ray tracing cores; the W6600M has 28. Pixel rate is 115.2 GPixel/s for the MI60 and 130.2 GPixel/s for the W6600M. Texture rate is 460.8 GTexel/s versus 227.8 GTexel/s. FP32 throughput is 14.75 TFLOPS versus 7.290 TFLOPS. FP16 throughput is 29.49 TFLOPS versus 14.58 TFLOPS, both at a 2:1 ratio.

Thermal design power is 300 W for the MI60 and 90 W for the W6600M. The MI60 is dual-slot with 1x 6-pin plus 1x 8-pin power connectors and a 700 W suggested PSU. The W6600M is an IGP with no power connectors and no suggested PSU. The MI60 measures 267 mm (10.5 inches) in length and 111 mm (4.4 inches) in height. The W6600M has no listed dimensions. Display outputs are 1x mini-DisplayPort 1.4a for the MI60 and "Portable Device Dependent" for the W6600M. The MI60 supports DirectX 12 (12_1) and Vulkan 1.3. The W6600M supports DirectX 12 Ultimate (12_2) and Vulkan 1.4. Release dates are 2018-11-17 for the MI60 and 2021-06-07 for the W6600M. Both are end-of-life.

Head-to-Head Benchmarks

The database records two head-to-head benchmark comparisons. In Geekbench OpenCL, the MI60 scores 92,488 against the W6600M’s 56,140, a 64.7% win for the MI60. This is the larger of the two deltas and reflects the MI60’s massive compute advantage. The MI60’s 4,096 shading units and 14.75 TFLOPS FP32 throughput simply overwhelm the W6600M’s 1,792 shading units and 7.290 TFLOPS. For any OpenCL compute workload, the MI60 is the clear choice.

In Geekbench Vulkan, the MI60 scores 92,444 against the W6600M’s 67,652, a 36.6% win for the MI60. The gap narrows considerably compared to OpenCL, which indicates the W6600M’s RDNA 2 architecture is relatively better at graphics-oriented tasks. The W6600M’s Vulkan score is its stronger result, and it is only 36.6% behind a card that is otherwise far more powerful. The MI60 still wins, but the W6600M’s modern architecture closes the gap in this API.

The MI60 wins both head-to-head tests, giving it 2 wins and the W6600M 0 wins. The average benchmark scores tell the same story: 92,466 for the MI60 and 61,896 for the W6600M. The MI60’s average is 49.4% higher, which is consistent with the OpenCL result but more severe than the Vulkan result. This suggests the MI60’s lead is largest in compute-heavy workloads and smaller in graphics-oriented ones.

The Verdict

The data supports a straightforward conclusion: the AMD Radeon Instinct MI60 is the faster card by a wide margin, and the AMD Radeon Pro W6600M is the only one that fits in a laptop. The MI60 wins both recorded benchmarks, with a 64.7% lead in OpenCL and a 36.6% lead in Vulkan. Its 32 GB of HBM2 memory with 1.02 TB/s bandwidth, 4,096 shading units, and 14.75 TFLOPS of FP32 performance place it firmly in the data center class. Its nearest rivals in the database are the NVIDIA RTX A4500 and RTX A4500 Mobile, which it edges out by 0.9% and 1.5% respectively. Anyone running large compute jobs, training models, or processing massive datasets should choose the MI60, provided they have the physical space and power delivery for a 300 W dual-slot card.

The W6600M is a different tool. It is a 90 W mobile part with no power connectors, designed to be integrated into a laptop. Its 8 GB of GDDR6 memory and 224.0 GB/s bandwidth are modest, but its 28 ray tracing cores and DirectX 12 Ultimate support put it ahead of the MI60 in modern graphics features. Its average benchmark score of 61,896 is competitive with the AMD Radeon 8050S (0.3% behind) and comfortably ahead of the NVIDIA GeForce RTX 4090 (2.6% ahead), the Intel Arc Pro A60 (2.6% ahead), and the AMD Radeon Pro Vega 48 (2.9% ahead). For a mobile workstation that needs to run CAD, rendering, or light compute with ray tracing support, the W6600M is the right pick.

There is no contest in raw performance, but there is also no contest in portability. The MI60 is a server or desktop card. The W6600M is a mobile part. Choose the MI60 if you need maximum compute throughput and memory capacity. Choose the W6600M if you need a ray tracing capable GPU that runs on laptop power. The benchmark data makes both roles clear, and each card is well suited to its own environment.