AMD Instinct MI350X vs AMD Ryzen Z2 A GPU Comparison

The Verdict

The database places both the AMD Instinct MI350X and the AMD Ryzen Z2 A GPU at the 50th percentile among all recorded GPUs, with an average benchmark score of 0 for each. This parity in aggregate ranking, however, masks two completely different design goals. The MI350X is a 1000 W compute accelerator built for massive parallel workloads, while the Z2 A is a 15 W console-oriented chip with fixed function graphics output. Based on the recorded data, the MI350X is the choice for high-throughput data center tasks such as FP32 or FP16 matrix operations, where its 72.09 TFLOPS in both precisions represents a 44x advantage over the Z2 A's 1.638 TFLOPS FP32 figure. The Z2 A, by contrast, is the only option here with a display output (1x USB Type-C), a DirectX 12 Ultimate feature set, and a 16 GB memory pool that fits within a 15 W envelope, making it suitable for embedded or handheld systems where power and connectivity matter more than raw compute.

Neither part shows any recorded benchmark wins in the head-to-head data, and both have identical percentile scores, so the decision rests entirely on the architectural and specification differences documented below. The MI350X has no display outputs, no API support (DirectX N/A, OpenGL N/A, Vulkan N/A), and a pixel rate of 0 MPixel/s, which confirms it cannot drive a screen. The Z2 A, with 16 ROPs and a 25.60 GPixel/s pixel rate, can render frames, but its 102.4 GB/s memory bandwidth is a fraction of the MI350X's 8.19 TB/s. For anyone needing a GPU that produces images, the Z2 A is the only viable part in this comparison. For anyone needing raw compute density, the MI350X is the only part that exists at that scale.

Where Each One Wins

The MI350X wins decisively in every compute-oriented metric recorded. Its 16384 shading units dwarf the Z2 A's 512, and its 1024 texture mapping units compare to 32. The texture rate of 2,252.8 GTexel/s versus 51.20 GTexel/s shows a 44x gap in fill-rate throughput for texturing workloads. FP32 performance of 72.09 TFLOPS versus 1.638 TFLOPS puts the MI350X at roughly 44x the single-precision throughput. FP16 performance is also 72.09 TFLOPS on the MI350X with a 1:1 ratio, whereas the Z2 A delivers 3.277 TFLOPS at a 2:1 ratio, meaning the MI350X again leads by about 22x in half-precision work. Memory bandwidth is another clear win: 8.19 TB/s from an 8192-bit HBM3e interface against 102.4 GB/s from a 128-bit LPDDR5 bus, a factor of 80x.

The Z2 A wins in areas that the MI350X cannot contest. It is the only part with any display output, listed as 1x USB Type-C. It supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, while the MI350X reports no API support at all. The Z2 A has 8 ray tracing cores, a feature entirely absent from the MI350X's specification sheet. Its 16 GB memory capacity, while smaller than 288 GB, is paired with a 15 W TDP that allows operation in power-constrained designs; the MI350X demands 1000 W and a 1400 W suggested PSU. The Z2 A also has a production status of "Active," whereas the MI350X's production status is not recorded. In terms of physical footprint, the Z2 A has no recorded dimensions, but the MI350X occupies a 102 mm by 165 mm OAM module, which is a specialized form factor.

Architecture Differences

The MI350X uses the CDNA 4.0 architecture on a 3 nm TSMC process, with a chip labeled "MI350 256CU." It contains 185,000 million transistors on a 2380 mm² die, yielding a transistor density of 77.7M per mm². The Z2 A uses the RDNA 2.0 architecture on a 7 nm TSMC process, with a chip labeled "Van Gogh." It packs 2,400 million transistors onto a 163 mm² die, for a density of 14.7M per mm². The MI350X's generation is listed as "Instinct (MIx)" with a predecessor of "Radeon Instinct," while the Z2 A belongs to the "Console GPU (AMD)" generation with no predecessor recorded.

The MI350X has no ray tracing cores, no tensor cores listed, and no ROPs (0). Its memory subsystem relies on HBM3e with a 288 GB capacity and an 8192-bit bus. The Z2 A has 16 ROPs, 8 ray tracing cores, and uses LPDDR5 memory with a 128-bit bus. The MI350X supports PCIe 5.0 x16 as its bus interface, while the Z2 A has no recorded bus interface. Clock behavior also differs: both start at a 1000 MHz base clock, but the MI350X boosts to 2200 MHz, while the Z2 A boosts to 1600 MHz. Memory clocks are 2000 MHz (8 Gbps effective) for the MI350X versus 800 MHz (6.4 Gbps effective) for the Z2 A.

The MI350X uses no power connectors (OAM module power delivery) and has a 1000 W TDP. The Z2 A has no recorded power connector or suggested PSU, but its TDP is 15 W. The MI350X has no display outputs, while the Z2 A has one USB Type-C output. The APIs tell a similar story: the MI350X reports N/A for DirectX, OpenGL, and Vulkan, whereas the Z2 A supports modern graphics APIs including DirectX 12 Ultimate. Release dates are 2025-06-11 for the MI350X and 2024-12-31 for the Z2 A.

FAQ

Q: Which GPU has higher raw compute performance?

A: The AMD Instinct MI350X. Its FP32 throughput is 72.09 TFLOPS versus 1.638 TFLOPS for the Z2 A, a 44x difference. FP16 performance is 72.09 TFLOPS on the MI350X and 3.277 TFLOPS on the Z2 A.

Q: Can either GPU output video to a display?

A: Only the AMD Ryzen Z2 A GPU. It has 1x USB Type-C display output. The MI350X lists "No outputs" and a pixel rate of 0 MPixel/s, so it cannot drive a monitor.

Q: What is the memory capacity difference?

A: The MI350X has 288 GB of HBM3e memory on an 8192-bit bus, delivering 8.19 TB/s bandwidth. The Z2 A has 16 GB of LPDDR5 memory on a 128-bit bus, delivering 102.4 GB/s bandwidth.

Q: Do these GPUs support modern graphics APIs?

A: The Z2 A supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The MI350X reports N/A for all three APIs, indicating no graphics API support in the recorded data.

Q: Which GPU has ray tracing capability?

A: The Z2 A has 8 ray tracing cores. The MI350X has no ray tracing cores listed, with a null value for that field.

Q: What are the power requirements?

A: The MI350X has a 1000 W TDP and a suggested PSU of 1400 W. The Z2 A has a 15 W TDP with no suggested PSU recorded.

Head-to-Head Benchmarks

The head-to-head benchmark table is empty, and both parts show zero wins in the recorded data. However, the specification-level comparisons provide clear numerical deltas. The largest single advantage for the MI350X appears in memory bandwidth: 8.19 TB/s versus 102.4 GB/s, an 80x gap. This stems from the 8192-bit HBM3e interface versus the 128-bit LPDDR5 bus. The next biggest gap is in texture rate, where 2,252.8 GTexel/s against 51.20 GTexel/s yields a 44x difference. FP32 compute follows the same pattern: 72.09 TFLOPS divided by 1.638 TFLOPS equals approximately 44x. The shading unit count of 16384 versus 512 also reflects a 32x difference in parallel execution resources.

The Z2 A's wins are less about magnitude and more about existence. Its pixel rate of 25.60 GPixel/s is a real number, while the MI350X records 0 MPixel/s. Its 16 ROPs allow actual rasterization, whereas the MI350X has 0 ROPs. The Z2 A's 8 ray tracing cores provide hardware acceleration for ray-traced effects, a feature completely absent from the MI350X. The Z2 A's FP16 rate of 3.277 TFLOPS is double its FP32 rate due to the 2:1 ratio, showing a different compute strategy than the MI350X's 1:1 FP32/FP16 ratio. The MI350X's 2200 MHz boost clock exceeds the Z2 A's 1600 MHz boost, but both share a 1000 MHz base clock.

The transistor count difference is also stark: 185,000 million versus 2,400 million, a factor of roughly 77x. Die size follows with 2380 mm² versus 163 mm², about 14.6x larger. Process node advantage goes to the MI350X at 3 nm versus 7 nm, and transistor density is 77.7M per mm² versus 14.7M per mm², a 5.3x density improvement. These architectural choices explain the performance gap: the MI350X is built for scale, the Z2 A for efficiency.

Specification Differences

The two GPUs differ in nearly every recorded field. The MI350X uses a 3 nm process, the Z2 A uses 7 nm. Transistor count is 185,000 million versus 2,400 million. Die size is 2380 mm² versus 163 mm². Transistor density is 77.7M per mm² versus 14.7M per mm². Base clocks match at 1000 MHz, but boost clocks differ at 2200 MHz versus 1600 MHz. Memory clock is 2000 MHz (8 Gbps effective) versus 800 MHz (6.4 Gbps effective). Memory size is 288 GB versus 16 GB. Memory type is HBM3e versus LPDDR5. Bus width is 8192 bit versus 128 bit. Bandwidth is 8.19 TB/s versus 102.4 GB/s.

Shading units are 16384 versus 512. TMUs are 1024 versus 32. ROPs are 0 versus 16. Ray tracing cores are null versus 8. Pixel rate is 0 MPixel/s versus 25.60 GPixel/s. Texture rate is 2,252.8 GTexel/s versus 51.20 GTexel/s. FP32 is 72.09 TFLOPS versus 1.638 TFLOPS. FP16 is 72.09 TFLOPS (1:1) versus 3.277 TFLOPS (2:1). TDP is 1000 W versus 15 W. The MI350X lists slot width as an OAM Module, while the Z2 A has no slot width. Power connectors are "None" for the MI350X and null for the Z2 A. Suggested PSU is 1400 W versus null. Bus interface is PCIe 5.0 x16 versus null. Display outputs are "No outputs" versus 1x USB Type-C. APIs are N/A for all three on the MI350X, while the Z2 A has DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4.

Dimensions show 102 mm by 165 mm for the MI350X, with no dimensions recorded for the Z2 A. Release dates differ: 2025-06-11 versus 2024-12-31. Production status is null for the MI350X and "Active" for the Z2 A. The MI350X has a predecessor of "Radeon Instinct," while the Z2 A has none. Neither part has a recorded launch MSRP. Both share the same manufacturer (AMD) and the same 50th percentile score, but their architectures (CDNA 4.0 versus RDNA 2.0), generation names ("Instinct (MIx)" versus "Console GPU (AMD)"), and physical designs place them at opposite ends of the GPU spectrum.