AMD Instinct MI300 vs AMD Ryzen Z2 Go GPU Comparison

FAQ

Q: What are the core architectural differences between the AMD Instinct MI300 and the AMD Ryzen Z2 Go GPU?

A: The Instinct MI300 uses the CDNA 3.0 architecture on a 5 nm TSMC process, while the Ryzen Z2 Go uses RDNA 2.0 on a 6 nm TSMC process. The MI300 is an accelerator with no display outputs, whereas the Z2 Go is a console-class GPU with a USB Type-C output and DirectX 12 Ultimate support.

Q: How do the memory subsystems compare?

A: The MI300 has 128 GB of HBM3 memory on an 8192-bit bus, delivering 5.32 TB/s of bandwidth. The Z2 Go has 16 GB of LPDDR5 on a 128-bit bus, delivering 102.4 GB/s. The MI300’s bandwidth is over 50 times higher.

Q: Which GPU has higher compute throughput in FP32?

A: The MI300 delivers 47.87 TFLOPS FP32, while the Z2 Go delivers 4.147 TFLOPS. The MI300 is roughly 11.5 times faster in single-precision compute.

Q: What are the power requirements for each?

A: The MI300 has a TDP of 600 W and requires a 1000 W suggested PSU with two 8-pin power connectors. The Z2 Go has a TDP of 28 W and uses no external power connectors.

Q: Do these GPUs support the same graphics APIs?

A: No. The MI300 lists DirectX, OpenGL, and Vulkan as N/A, while the Z2 Go supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Q: What are the physical dimensions of each?

A: The MI300 is 267 mm long and 111 mm high. The Z2 Go has no recorded length, height, or width dimensions in the database.

Architecture Differences

The AMD Instinct MI300 and AMD Ryzen Z2 Go GPU are built for entirely different roles, and the architecture data confirms this divergence. The MI300 uses the CDNA 3.0 architecture, a compute-focused design optimized for data center workloads. The Z2 Go uses RDNA 2.0, a graphics-oriented architecture targeting console and portable gaming scenarios.

The manufacturing processes differ: the MI300 is fabricated on TSMC’s 5 nm node, while the Z2 Go uses TSMC’s 6 nm node. The MI300’s die is 1017 mm² with 153,000 million transistors, yielding a transistor density of 150.4 million per mm². The Z2 Go’s die is 208 mm² with 13,100 million transistors, giving a density of 63.0 million per mm². The MI300 packs roughly 11.7 times more transistors onto a die that is about 4.9 times larger.

The compute resources are heavily skewed toward the MI300. It features 14,080 shading units and 880 texture mapping units, but zero ROPs and zero pixel rate. This configuration is typical for a pure compute accelerator: it does not rasterize or output pixels. The Z2 Go, in contrast, has 768 shading units, 48 TMUs, 32 ROPs, and 12 ray tracing cores. It produces a pixel rate of 86.40 GPixel/s and a texture rate of 129.6 GTexel/s. The MI300’s texture rate is 1,496.0 GTexel/s, which is over 11 times higher than the Z2 Go’s.

Memory architecture further separates the two. The MI300 uses 128 GB of HBM3 over an 8192-bit bus, achieving 5.32 TB/s. The Z2 Go uses 16 GB of LPDDR5 over a 128-bit bus, achieving 102.4 GB/s. The MI300’s memory bus width is 64 times wider, and its bandwidth is roughly 52 times greater. The MI300’s memory clock is 1300 MHz with 5.2 Gbps effective, while the Z2 Go’s memory clock is 800 MHz with 6.4 Gbps effective.

Clock speeds also differ. The MI300 has a base clock of 1000 MHz and a boost clock of 1700 MHz. The Z2 Go has a lower base clock of 800 MHz but a much higher boost clock of 2700 MHz. This higher boost helps the Z2 Go achieve its pixel and texture rates despite having far fewer compute units.

The feature sets reflect their intended environments. The MI300 has no display outputs and no graphics API support listed. The Z2 Go has one USB Type-C display output and supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The MI300 uses PCIe 5.0 x16, while the Z2 Go has no recorded bus interface. The MI300 requires two 8-pin power connectors and a 1000 W suggested PSU, whereas the Z2 Go has no power connectors and no suggested PSU listed. The Z2 Go is marked as Active in production status, while the MI300 has no production status recorded.

Head-to-Head Benchmarks

The database records no direct benchmark scores for either GPU. Both have an average benchmark score of 0 and a percentile rank of 50 against all GPUs. There are no nearest rivals listed for either part, meaning the head-to-head comparison must rely on the recorded hardware specifications rather than measured results.

The MI300 wins overwhelmingly in raw compute throughput. Its FP32 output is 47.87 TFLOPS, compared to the Z2 Go’s 4.147 TFLOPS. That is a factor of roughly 11.5 in favor of the MI300. In FP16, the MI300 produces 47.87 TFLOPS at a 1:1 ratio, while the Z2 Go produces 8.294 TFLOPS at a 2:1 ratio. The MI300’s FP16 figure is about 5.8 times higher.

Texture throughput follows the same pattern. The MI300 reaches 1,496.0 GTexel/s, while the Z2 Go reaches 129.6 GTexel/s. This is an 11.5-fold difference, consistent with the FP32 scaling since both derive from shading units and clocks. The MI300 has 14,080 shading units versus 768 for the Z2 Go, which is an 18.3-fold difference, but the Z2 Go’s higher boost clock of 2700 MHz versus 1700 MHz narrows the final throughput gap.

The Z2 Go wins in pixel output because the MI300 has zero ROPs and zero pixel rate. The Z2 Go produces 86.40 GPixel/s, a figure the MI300 cannot match by design. This is not a performance loss for the MI300; it simply does not perform rasterization. The Z2 Go also has 12 ray tracing cores, while the MI300 has no recorded ray tracing cores. For any workload involving ray tracing, the Z2 Go has the only functional hardware.

Memory bandwidth is a decisive MI300 advantage. The 5.32 TB/s figure dwarfs the Z2 Go’s 102.4 GB/s. For data-intensive workloads such as large model inference or training, this bandwidth differential is the single most important metric. The Z2 Go’s 16 GB capacity is sufficient for console-class gaming, but the MI300’s 128 GB capacity supports far larger datasets.

The power envelopes are also starkly different. The MI300 draws 600 W, while the Z2 Go draws 28 W. That is a 21.4-fold difference in TDP. The MI300 achieves its compute leadership at the cost of substantial power and cooling requirements, while the Z2 Go delivers modest performance at very low power.

The release dates are close: the MI300 was released on January 3, 2023, and the Z2 Go on December 31, 2024. Both are AMD products, and both use TSMC fabrication, but they target different markets entirely.

The Verdict

The data indicates that the AMD Instinct MI300 is a compute accelerator with no display capability, no rasterization hardware, and no graphics API support. It is designed for workloads that demand massive FP32 and FP16 throughput, extremely wide memory buses, and high bandwidth. Its 47.87 TFLOPS FP32, 5.32 TB/s memory bandwidth, and 128 GB HBM3 capacity place it firmly in the data center accelerator category. The absence of ROPs and pixel rate confirms it is not meant for rendering.

The AMD Ryzen Z2 Go GPU is a graphics processor with 32 ROPs, 12 ray tracing cores, and a pixel rate of 86.40 GPixel/s. It supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, and it has a display output. Its 4.147 TFLOPS FP32 and 8.294 TFLOPS FP16 are modest but appropriate for a 28 W console-class part. The Z2 Go is an active production product, whereas the MI300 has no production status recorded.

The choice between the two depends entirely on workload. For compute-heavy tasks such as machine learning, scientific simulation, or high-performance computing, the MI300 is the only viable option. Its FP32 and FP16 figures are an order of magnitude higher, its memory bandwidth is over 50 times greater, and its capacity is 8 times larger. The Z2 Go cannot approach these capabilities.

For graphics rendering, gaming, or any task requiring pixel output, the Z2 Go is the functional choice. The MI300 has no pixel rate and no display outputs, so it cannot perform these tasks at all. The Z2 Go’s ray tracing cores and DirectX 12 Ultimate support make it suitable for modern console workloads.

The 600 W TDP of the MI300 requires a 1000 W suggested PSU and two 8-pin connectors, while the Z2 Go needs none. The MI300’s 267 mm length and 111 mm height indicate a large, server-style card, while the Z2 Go has no recorded dimensions. The MI300’s PCIe 5.0 x16 interface is a server standard, whereas the Z2 Go has no recorded bus interface.

The database shows both GPUs at the 50th percentile against all GPUs, but this is based on a benchmark score of 0 for both, meaning no measured performance data exists. The specification analysis must therefore stand on its own. The MI300 is a compute specialist with no graphics capability. The Z2 Go is a graphics specialist with no compute pretensions beyond its modest 4.147 TFLOPS. Users needing compute should select the MI300. Users needing graphics should select the Z2 Go. There is no overlap in function.

Specification Differences

The following specifications differ between the AMD Instinct MI300 and the AMD Ryzen Z2 Go GPU:

• Chip: Aqua Vanjaram (MI300) versus Rembrandt+ (Z2 Go)
• Architecture: CDNA 3.0 (MI300) versus RDNA 2.0 (Z2 Go)
• Process node: 5 nm (MI300) versus 6 nm (Z2 Go)
• Transistors: 153,000 million (MI300) versus 13,100 million (Z2 Go)
• Die size: 1017 mm² (MI300) versus 208 mm² (Z2 Go)
• Transistor density: 150.4M / mm² (MI300) versus 63.0M / mm² (Z2 Go)
• Base clock: 1000 MHz (MI300) versus 800 MHz (Z2 Go)
• Boost clock: 1700 MHz (MI300) versus 2700 MHz (Z2 Go)
• Memory clock: 1300 MHz, 5.2 Gbps effective (MI300) versus 800 MHz, 6.4 Gbps effective (Z2 Go)
• Memory size: 128 GB (MI300) versus 16 GB (Z2 Go)
• Memory type: HBM3 (MI300) versus LPDDR5 (Z2 Go)
• Memory bus width: 8192 bit (MI300) versus 128 bit (Z2 Go)
• Memory bandwidth: 5.32 TB/s (MI300) versus 102.4 GB/s (Z2 Go)
• Shading units: 14,080 (MI300) versus 768 (Z2 Go)
• TMUs: 880 (MI300) versus 48 (Z2 Go)
• ROPs: 0 (MI300) versus 32 (Z2 Go)
• Ray tracing cores: None recorded (MI300) versus 12 (Z2 Go)
• Pixel rate: 0 MPixel/s (MI300) versus 86.40 GPixel/s (Z2 Go)
• Texture rate: 1,496.0 GTexel/s (MI300) versus 129.6 GTexel/s (Z2 Go)
• FP32: 47.87 TFLOPS (MI300) versus 4.147 TFLOPS (Z2 Go)
• FP16: 47.87 TFLOPS, 1:1 (MI300) versus 8.294 TFLOPS, 2:1 (Z2 Go)
• TDP: 600 W (MI300) versus 28 W (Z2 Go)
• Power connectors: 2x 8-pin (MI300) versus None (Z2 Go)
• Suggested PSU: 1000 W (MI300) versus not recorded (Z2 Go)
• Bus interface: PCIe 5.0 x16 (MI300) versus not recorded (Z2 Go)
• Display outputs: No outputs (MI300) versus 1x USB Type-C (Z2 Go)
• DirectX support: N/A (MI300) versus 12 Ultimate (12_2) (Z2 Go)
• OpenGL support: N/A (MI300) versus 4.6 (Z2 Go)
• Vulkan support: N/A (MI300) versus 1.4 (Z2 Go)
• Dimensions: 267 mm length, 111 mm height (MI300) versus not recorded (Z2 Go)
• Production status: Not recorded (MI300) versus Active (Z2 Go)
• Release date: January 3, 2023 (MI300) versus December 31, 2024 (Z2 Go)
• Predecessor: Radeon Instinct (MI300) versus none recorded (Z2 Go)