AMD Instinct MI350X vs AMD Ryzen Z2 GPU Comparison

Head-to-Head Benchmarks

The recorded data contains no direct benchmark comparisons between the AMD Instinct MI350X and the AMD Ryzen Z2 GPU. Both entries show an empty head-to-head benchmark array, zero wins for each side, and identical percentile standings at 50 against all GPUs. Their average benchmark scores are also identical at zero, which reflects the absence of measured performance data rather than parity in real-world capability.

What the database does provide is a sharp contrast in raw compute specifications. The Instinct MI350X delivers 72.09 TFLOPS of FP32 performance, while the Ryzen Z2 GPU delivers 8.294 TFLOPS. That puts the MI350X at roughly 8.7 times the FP32 throughput of the Z2 GPU. The texture rate tells a similar story: 2,252.8 GTexel/s versus 129.6 GTexel/s, a difference of about 17.4 times. Pixel rate is another matter entirely, the MI350X shows 0 MPixel/s because it has no ROPs, while the Z2 GPU manages 86.40 GPixel/s.

Memory bandwidth is where the gap becomes extreme. The MI350X has 8.19 TB/s of bandwidth from HBM3e across an 8192-bit bus. The Z2 GPU has 119.9 GB/s from LPDDR5X across a 128-bit bus. That is a difference of roughly 68 times in raw bandwidth. Memory capacity differs by 18 times: 288 GB on the MI350X versus 16 GB on the Z2 GPU.

Clock behavior also differs. The MI350X has a base clock of 1000 MHz and a boost clock of 2200 MHz. The Z2 GPU has a lower base of 800 MHz but a higher boost of 2700 MHz. Memory clocks are close in nominal terms, 2000 MHz with 8 Gbps effective on the MI350X, 937 MHz with 7.5 Gbps effective on the Z2 GPU, but the bus width difference makes the effective bandwidth comparison lopsided.

The Verdict

The data points to two completely different use cases. The AMD Instinct MI350X is an OAM module with no display outputs, no graphics API support (DirectX, OpenGL, and Vulkan are all listed as N/A), and a 1000 W TDP. It is built for compute workloads that need massive memory capacity and bandwidth. The AMD Ryzen Z2 GPU is a 28 W part with a single USB Type-C display output, full DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4 support. It is built for graphics rendering in a low-power context.

The MI350X has no ROPs, which means it cannot rasterize frames in the conventional sense. It also has no pixel rate to speak of. The Z2 GPU has 32 ROPs and a pixel rate of 86.40 GPixel/s. Anyone needing to drive a display should choose the Z2 GPU. Anyone needing FP32 compute at scale should choose the MI350X. The 72.09 TFLOPS figure on the MI350X versus 8.294 TFLOPS on the Z2 GPU is the clearest separation point in the entire dataset.

The Z2 GPU also includes 12 ray tracing cores, a feature entirely absent from the MI350X specification. The MI350X has no listed RT cores. For graphics workloads that include ray-traced effects, the Z2 GPU is the only one of the two with the relevant hardware.

Architecture Differences

The MI350X uses CDNA 4.0 architecture, built on a 3 nm process at TSMC. The Z2 GPU uses RDNA 3.0 architecture, built on a 4 nm process at TSMC. The manufacturing node difference is one nanometer, but the design philosophy behind each architecture is entirely different. CDNA is AMD's compute-focused line, while RDNA is their graphics-focused line.

The chip identifiers confirm this split. The MI350X uses the MI350 256CU chip, which indicates 256 compute units. The Z2 GPU uses the Hawk Point chip, which is a smaller integrated design. The MI350X packs 185,000 million transistors onto a 2380 mm² die. The Z2 GPU has 25,390 million transistors on a 178 mm² die. Transistor density tells the opposite story: the Z2 GPU has 142.6M transistors per mm², while the MI350X has 77.7M per mm². The smaller, newer process node on the Z2 GPU allows for higher density, but the MI350X's sheer die size gives it far more total transistors.

Shading units differ by a factor of about 21: the MI350X has 16,384, the Z2 GPU has 768. Texture mapping units also differ by more than 21 times: 1024 versus 48. The MI350X has no ROPs at all, while the Z2 GPU has 32. The MI350X has no ray tracing cores listed, while the Z2 GPU has 12. Neither part lists tensor cores.

The MI350X belongs to the Instinct (MIx) generation, with a predecessor listed as Radeon Instinct. The Z2 GPU belongs to the Console GPU (AMD) generation. Its production status is listed as Active, while the MI350X has no production status recorded. The MI350X was released on 2025-06-11, the Z2 GPU on 2024-12-31.

Specification Differences

The MI350X uses HBM3e memory totaling 288 GB with an 8192-bit bus and 8.19 TB/s bandwidth. The Z2 GPU uses LPDDR5X memory totaling 16 GB with a 128-bit bus and 119.9 GB/s bandwidth. The MI350X has a 1000 W TDP and a suggested PSU of 1400 W. The Z2 GPU has a 28 W TDP and no suggested PSU listed.

The MI350X is an OAM Module form factor, measuring 102 mm in length and 165 mm in width. The Z2 GPU has no dimensions recorded. The MI350X uses PCIe 5.0 x16 as its bus interface. The Z2 GPU has no bus interface listed. The MI350X has no display outputs. The Z2 GPU has one USB Type-C output.

The MI350X has no power connectors listed, and neither does the Z2 GPU. The MI350X has no graphics API support at all. The Z2 GPU supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The MI350X has no production status, while the Z2 GPU is marked Active.

Neither part has a launch MSRP in the database, so no pricing information is available.

FAQ

Q: Which GPU has higher FP32 compute performance?

A: The AMD Instinct MI350X delivers 72.09 TFLOPS of FP32 performance, versus 8.294 TFLOPS on the AMD Ryzen Z2 GPU.

Q: Which GPU can output to a display?

A: The AMD Ryzen Z2 GPU has one USB Type-C display output. The AMD Instinct MI350X has no display outputs.

Q: Which GPU supports ray tracing?

A: The AMD Ryzen Z2 GPU has 12 ray tracing cores. The AMD Instinct MI350X has no ray tracing cores listed in the database.

Q: How do memory capacities compare?

A: The AMD Instinct MI350X has 288 GB of HBM3e memory. The AMD Ryzen Z2 GPU has 16 GB of LPDDR5X memory.

Q: What is the power draw difference?

A: The AMD Instinct MI350X has a 1000 W TDP. The AMD Ryzen Z2 GPU has a 28 W TDP.

Q: Which GPU has a higher boost clock?

A: The AMD Ryzen Z2 GPU boosts to 2700 MHz, while the AMD Instinct MI350X boosts to 2200 MHz.

Where Each One Wins

The AMD Instinct MI350X wins decisively in compute throughput and memory capacity. Its FP32 rate of 72.09 TFLOPS dwarfs the Z2 GPU's 8.294 TFLOPS. Its texture rate of 2,252.8 GTexel/s dwarfs the Z2 GPU's 129.6 GTexel/s. Its 288 GB of HBM3e memory with 8.19 TB/s of bandwidth is in an entirely different class from the Z2 GPU's 16 GB of LPDDR5X at 119.9 GB/s. The 8192-bit memory bus versus the 128-bit bus makes the MI350X the obvious choice for workloads that move large datasets, such as AI training or large-scale scientific computing.

The AMD Ryzen Z2 GPU wins in every area related to graphics output and power efficiency. It has 32 ROPs and a pixel rate of 86.40 GPixel/s, while the MI350X has 0 ROPs and 0 MPixel/s. It supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, while the MI350X supports none of these APIs. It includes 12 ray tracing cores, which the MI350X lacks entirely. Its 28 W TDP is a fraction of the MI350X's 1000 W TDP, making it suitable for compact, low-power systems. The Z2 GPU also has a higher boost clock at 2700 MHz versus 2200 MHz.

The transistor density comparison favors the Z2 GPU at 142.6M transistors per mm² versus 77.7M per mm² on the MI350X, but total transistor count favors the MI350X at 185,000 million versus 25,390 million. The die size difference is 2380 mm² versus 178 mm². The MI350X uses a 3 nm process, the Z2 GPU uses a 4 nm process.

The release dates differ by about six months. The Z2 GPU was released on 2024-12-31, the MI350X on 2025-06-11. The Z2 GPU is marked as Active in production status, while the MI350X has no production status recorded. The MI350X has a predecessor listed as Radeon Instinct, while the Z2 GPU has no predecessor listed. Neither has a successor listed.

For a builder assembling a compute node, the MI350X is the only viable choice between these two. For a builder assembling a graphics workstation or a gaming handheld, the Z2 GPU is the only viable choice. The two parts do not compete in the same market segment. The data shows no overlap in their intended functions, and the specification differences reinforce that separation at every level.