AMD Instinct MI350X vs AMD Ryzen Z1 GPU Comparison

Where Each One Wins

The AMD Instinct MI350X and the AMD Ryzen Z1 GPU occupy completely different positions in the database. The MI350X is an Instinct-series accelerator, while the Ryzen Z1 GPU belongs to the Console GPU generation. Their benchmark records show no direct head-to-head wins for either part, with both recording zero wins in the comparison set. The recorded data therefore splits them by role rather than by competing on the same workloads.

The MI350X targets accelerator-class computing. It uses the MI350 256CU chip on CDNA 4.0 architecture, a 3 nm TSMC part with 185,000 million transistors. Its entire specification set, from 288 GB of HBM3e memory to a 1000 W TDP, points to data-center inference and training tasks where massive memory capacity and bandwidth matter more than display output. The Ryzen Z1 GPU, by contrast, is a 30 W mobile-class part on RDNA 3.0, built on the Phoenix chip at 4 nm with 25,390 million transistors. It carries 16 GB of LPDDR5 memory and a 64-bit bus, a configuration suited to embedded or handheld console workloads.

The benchmark wins column does not separate them, because neither records any wins in the head-to-head benchmark set. The user-facing distinction comes from the architectural roles: the MI350X has no display outputs, no DirectX, OpenGL, or Vulkan support, while the Ryzen Z1 GPU reports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The MI350X is effectively a compute-only device, the Ryzen Z1 GPU is a rendering-capable part.

Architecture Differences

The two chips share a manufacturer and foundry, but almost nothing else. The MI350X uses CDNA 4.0, AMD's compute-focused architecture, while the Ryzen Z1 GPU uses RDNA 3.0, the graphics-focused design. The MI350X is built at 3 nm, the Ryzen Z1 GPU at 4 nm, both at TSMC. Transistor counts differ by an order of magnitude: 185,000 million for the MI350X versus 25,390 million for the Ryzen Z1 GPU. Die size follows, with the MI350X at 2380 mm² against 178 mm² for the Ryzen Z1 GPU. Transistor density inverts the relationship: the Ryzen Z1 GPU packs 142.6 million transistors per mm², while the MI350X reaches 77.7 million per mm².

Memory architecture separates them even further. The MI350X uses 288 GB of HBM3e across an 8192-bit bus, delivering 8.19 TB/s of bandwidth. The Ryzen Z1 GPU uses 16 GB of LPDDR5 on a 64-bit bus, yielding 51.20 GB/s. That is a 160-fold bandwidth difference in the recorded figures, and it defines the MI350X as a memory-bound compute engine. The Ryzen Z1 GPU also includes 4 ray tracing cores, a feature the MI350X does not list, and it exposes graphics APIs the MI350X lacks entirely.

Clock behavior differs as well. The MI350X runs a 1000 MHz base and 2200 MHz boost, while the Ryzen Z1 GPU runs 1500 MHz base and 2500 MHz boost. The smaller part actually clocks higher. The MI350X compensates with far more execution units: 16,384 shading units against 256, 1,024 TMUs against 16, and the MI350X reports 0 ROPs while the Ryzen Z1 GPU has 8. The MI350X pixel rate is listed as 0 MPixel/s, the Ryzen Z1 GPU at 20.00 GPixel/s. Texture rate goes the other way: 2,252.8 GTexel/s for the MI350X versus 40.00 GTexel/s for the Ryzen Z1 GPU.

Head-to-Head Benchmarks

The head-to-head benchmark array is empty in the database, and the wins counters show 0 for both parts. As a result, the recorded data cannot supply any direct benchmark comparison between the MI350X and the Ryzen Z1 GPU. The analysis must rest on the specification-level measurements instead.

The largest numerical gaps appear in raw throughput. The MI350X delivers 72.09 TFLOPS of FP32 against 2.560 TFLOPS for the Ryzen Z1 GPU, a 28-fold difference in the recorded figures. FP16 splits differently: the MI350X lists 72.09 TFLOPS at a 1:1 ratio, meaning its FP16 rate equals its FP32 rate. The Ryzen Z1 GPU lists 5.120 TFLOPS at a 2:1 ratio, meaning its FP16 rate doubles its FP32 rate. Even so, the MI350X FP16 figure exceeds the Ryzen Z1 GPU FP16 figure by roughly 14 times.

Memory bandwidth shows the most extreme division. The MI350X records 8.19 TB/s, the Ryzen Z1 GPU 51.20 GB/s. Converted to the same unit, the MI350X figure is 8,190 GB/s, about 160 times the Ryzen Z1 GPU figure. The MI350X memory clock is listed at 2000 MHz with 8 Gbps effective, while the Ryzen Z1 GPU runs 800 MHz with 6.4 Gbps effective. The MI350X bus width of 8192 bit versus 64 bit explains most of the bandwidth gap.

Power consumption mirrors the compute split. The MI350X TDP is 1000 W with a suggested PSU of 1400 W. The Ryzen Z1 GPU TDP is 30 W with no suggested PSU listed. That is a 33-fold difference in TDP, consistent with the 28-fold FP32 gap. The MI350X delivers more than twice the performance per watt in FP32 when dividing TFLOPS by TDP: 0.072 TFLOPS per watt versus 0.085 TFLOPS per watt for the Ryzen Z1 GPU, so the smaller part is actually more efficient in that narrow metric.

Specification Differences

The two parts differ in nearly every recorded field. Process node: 3 nm for the MI350X, 4 nm for the Ryzen Z1 GPU. Transistors: 185,000 million versus 25,390 million. Die size: 2380 mm² versus 178 mm². Transistor density: 77.7M per mm² versus 142.6M per mm². Base clock: 1000 MHz versus 1500 MHz. Boost clock: 2200 MHz versus 2500 MHz. Memory clock: 2000 MHz 8 Gbps effective versus 800 MHz 6.4 Gbps effective. Memory size: 288 GB versus 16 GB. Memory type: HBM3e versus LPDDR5. Bus width: 8192 bit versus 64 bit. Bandwidth: 8.19 TB/s versus 51.20 GB/s.

Shading units: 16,384 versus 256. TMUs: 1,024 versus 16. ROPs: 0 versus 8. Ray tracing cores: not listed versus 4. Pixel rate: 0 MPixel/s versus 20.00 GPixel/s. Texture rate: 2,252.8 GTexel/s versus 40.00 GTexel/s. FP32: 72.09 TFLOPS versus 2.560 TFLOPS. FP16: 72.09 TFLOPS (1:1) versus 5.120 TFLOPS (2:1). TDP: 1000 W versus 30 W. Suggested PSU: 1400 W versus not listed. Slot width: OAM Module versus not listed. Bus interface: PCIe 5.0 x16 versus not listed.

The MI350X lists dimensions of 102 mm length and 165 mm width with no height. The Ryzen Z1 GPU lists 280 mm length, 111 mm height, and 21 mm width, reflecting a board-level product. The MI350X has no display outputs; the Ryzen Z1 GPU also lists no display outputs. The MI350X lists no graphics API support, while the Ryzen Z1 GPU lists DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. Release dates differ: the MI350X entered the database on 2025-06-11, the Ryzen Z1 GPU on 2023-09-17. The Ryzen Z1 GPU has a launch MSRP of 599 USD; the MI350X has no launch MSRP recorded. Production status is not listed for the MI350X, while the Ryzen Z1 GPU is marked Active.

FAQ

Q: Which part has more shading units?

A: The AMD Instinct MI350X lists 16,384 shading units, while the AMD Ryzen Z1 GPU lists 256.

Q: What memory type does each part use?

A: The MI350X uses 288 GB of HBM3e on an 8192-bit bus with 8.19 TB/s bandwidth. The Ryzen Z1 GPU uses 16 GB of LPDDR5 on a 64-bit bus with 51.20 GB/s bandwidth.

Q: Which part supports graphics APIs?

A: The Ryzen Z1 GPU supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The MI350X lists no graphics API support and has no display outputs.

Q: How do the FP16 rates compare?

A: The MI350X records 72.09 TFLOPS FP16 at a 1:1 ratio, matching its FP32 rate. The Ryzen Z1 GPU records 5.120 TFLOPS FP16 at a 2:1 ratio, double its FP32 rate.

Q: What is the TDP difference?

A: The MI350X has a 1000 W TDP with a 1400 W suggested PSU. The Ryzen Z1 GPU has a 30 W TDP with no suggested PSU listed.

Q: Do either have display outputs?

A: No. Both the MI350X and the Ryzen Z1 GPU list "No outputs" for display outputs.

The Verdict

The data separates these two parts cleanly. The AMD Instinct MI350X is a 1000 W accelerator with 288 GB of HBM3e, 8.19 TB/s bandwidth, 72.09 TFLOPS FP32, and no graphics API support. The AMD Ryzen Z1 GPU is a 30 W console-class part with 16 GB of LPDDR5, 51.20 GB/s bandwidth, 2.560 TFLOPS FP32, and full DirectX 12 Ultimate support. No head-to-head benchmark results exist in the database, so the verdict rests on the recorded specifications.

A buyer choosing between them would pick the MI350X for compute-heavy workloads that demand enormous memory capacity and bandwidth, such as large-model inference, given its 288 GB memory pool and 8.19 TB/s transfer rate. The Ryzen Z1 GPU suits rendering-oriented tasks that need graphics API support, given its DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4 capability, plus its 4 ray tracing cores. The MI350X has no display outputs and no API support, so it cannot drive graphics workloads. The Ryzen Z1 GPU has a launch MSRP of 599 USD, while the MI350X has no recorded launch MSRP.

On efficiency per watt, the Ryzen Z1 GPU delivers 0.085 TFLOPS per watt in FP32 against 0.072 TFLOPS per watt for the MI350X. On raw throughput, the MI350X delivers 28 times the FP32 performance. The Ryzen Z1 GPU is the only one of the two with an Active production status. The MI350X is the only one with a PCIe 5.0 x16 bus interface. Neither part has display outputs, so both rely on external systems for any visual output. The choice is defined by workload: memory-bound compute on the MI350X, graphics-capable rendering on the Ryzen Z1 GPU.