AMD Instinct MI325X vs AMD Ryzen Z2 Go GPU Comparison

The AMD Instinct MI325X and the AMD Ryzen Z2 Go GPU occupy entirely different corners of the hardware spectrum. The MI325X is a data-center accelerator built for massive parallel compute, while the Z2 Go GPU is a low-power integrated graphics solution aimed at portable consoles. The database records no overlapping benchmark scores, no average performance scores, and no head-to-head wins for either part. Both sit at the 50th percentile in the overall GPU distribution, but that percentile figure is based on an empty benchmark dataset, so it carries no comparative weight. The analysis below focuses strictly on the recorded specifications, architecture details, and what those numbers indicate about each product’s intended role.

Where Each One Wins

The MI325X wins in every category related to raw compute throughput, memory capacity, and memory bandwidth. Its FP32 performance is recorded at 81.72 TFLOPS, which is roughly 19.7 times the Z2 Go’s 4.147 TFLOPS. Texture rate tells a similar story: the MI325X delivers 2,553.6 GTexel/s against the Z2 Go’s 129.6 GTexel/s, a factor of about 19.7 as well. The MI325X also holds a massive memory advantage with 256 GB of HBM3e across a 8192-bit bus, yielding 6.14 TB/s of bandwidth. The Z2 Go has 16 GB of LPDDR5 on a 128-bit bus, providing 102.4 GB/s. That is a 60-fold difference in bandwidth, which directly impacts any workload that streams large datasets through the GPU.

The Z2 Go wins in power efficiency, physical footprint, and feature completeness for consumer-facing graphics. Its TDP is 28 W, compared to the MI325X’s 1000 W, which makes it suitable for battery-powered devices. The Z2 Go also has a pixel rate of 86.40 GPixel/s, while the MI325X records 0 MPixel/s because it has no ROPs and no display outputs. The Z2 Go supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, whereas the MI325X lists N/A for all three APIs. The Z2 Go is the only one of the two with a display output, a single USB Type-C port. In any scenario that requires rendering to a screen, running a game, or using a standard graphics API, the Z2 Go is the functional part. In any scenario that requires massive matrix math, high-throughput tensor operations, or large memory residency, the MI325X is the clear choice.

Architecture Differences

The MI325X uses the CDNA 3.0 architecture on TSMC’s 5 nm process, with the chip named Aqua Vanjaram. The Z2 Go uses RDNA 2.0 on TSMC’s 6 nm process, with the chip named Rembrandt+. These are fundamentally different designs: CDNA is optimized for compute accelerators, while RDNA is optimized for graphics rendering.

Transistor counts diverge sharply. The MI325X integrates 153,000 million transistors on a 1017 mm² die, giving a transistor density of 150.4 million per mm². The Z2 Go integrates 13,100 million transistors on a 208 mm² die, with a density of 63.0 million per mm². The MI325X has roughly 11.7 times more transistors and a die area about 4.9 times larger. That larger die and higher density allow the MI325X to pack 19,456 shading units, 1,216 TMUs, and no ROPs. The Z2 Go has 768 shading units, 48 TMUs, and 32 ROPs. The MI325X has no ray tracing cores listed, while the Z2 Go has 12 RT cores. The MI325X also has no tensor core count listed, but its FP16 performance is recorded as 81.72 TFLOPS with a 1:1 ratio to FP32, indicating no dedicated FP16 acceleration path. The Z2 Go’s FP16 is 8.294 TFLOPS at a 2:1 ratio, meaning it halves FP32 throughput when using FP16.

Clock behavior differs as well. The MI325X has a base clock of 1000 MHz and a boost clock of 2100 MHz. The Z2 Go has a base clock of 800 MHz and a boost clock of 2700 MHz. The Z2 Go’s higher boost clock helps compensate for its smaller shader count, but the raw throughput gap remains enormous. Memory clocks also differ: the MI325X runs its HBM3e at 1500 MHz with 6 Gbps effective, while the Z2 Go runs LPDDR5 at 800 MHz with 6.4 Gbps effective. The MI325X’s memory bandwidth advantage comes not from a faster clock but from the 8192-bit bus versus 128-bit.

Power delivery is another major divider. The MI325X has a TDP of 1000 W, requires a suggested PSU of 1400 W, and mounts as an OAM module with no power connectors listed. The Z2 Go has a TDP of 28 W, no suggested PSU, and no slot width specified. The MI325X uses a PCIe 5.0 x16 interface, while the Z2 Go lists no bus interface. The MI325X has no display outputs; the Z2 Go has one USB Type-C output.

Release timing is close but distinct. The MI325X launched on October 9, 2024, while the Z2 Go’s release date is recorded as December 31, 2024. The MI325X’s predecessor is listed as Radeon Instinct, with no successor. The Z2 Go has no predecessor or successor listed. The Z2 Go has an active production status; the MI325X has no production status recorded.

The Verdict

The data points to two different purchasing decisions. If the workload is server-side inference, scientific simulation, or any task that can use 81.72 TFLOPS of FP32 compute and 6.14 TB/s of memory bandwidth, the MI325X is the only viable option. Its 256 GB memory capacity is unmatched in this comparison, and its 8192-bit bus is a deliberate design for moving enormous matrices into the compute units. The lack of display outputs and graphics APIs is irrelevant in that context, because the part is meant to be one node in a rack, not a user-facing GPU.

If the workload is gaming, media playback, or any consumer graphics task, the Z2 Go is the only functional choice. Its DirectX 12 Ultimate support, Vulkan 1.4 support, OpenGL 4.6 support, and single USB Type-C output mean it can actually drive a display. Its 32 ROPs and 86.40 GPixel/s pixel rate allow rasterization, something the MI325X cannot do at all. The Z2 Go’s 28 W TDP also makes it feasible for handheld or low-power embedded systems, where a 1000 W accelerator would be physically and thermally impossible.

The recorded percentile for both parts is 50, but with zero benchmark scores and no nearest rivals, that number is not a measure of relative performance. The database records no wins for either part in head-to-head tests. The decision rests entirely on the specification sheet. The MI325X is a compute monster with no rendering capability. The Z2 Go is a rendering chip with modest compute. Neither can substitute for the other.

FAQ

Q: Which GPU has higher FP32 performance?

A: The MI325X records 81.72 TFLOPS FP32, while the Z2 Go records 4.147 TFLOPS. The MI325X is about 19.7 times faster in this metric.

Q: Which GPU supports DirectX 12 Ultimate?

A: Only the Z2 Go supports DirectX 12 Ultimate (12_2). The MI325X lists N/A for DirectX, OpenGL, and Vulkan.

Q: How much memory does each GPU have?

A: The MI325X has 256 GB of HBM3e, while the Z2 Go has 16 GB of LPDDR5. The MI325X also has a 8192-bit memory bus versus the Z2 Go’s 128-bit bus.

Q: Can either GPU output video to a display?

A: The Z2 Go has one USB Type-C display output. The MI325X has no display outputs listed.

Q: What is the power consumption difference?

A: The MI325X has a TDP of 1000 W with a suggested PSU of 1400 W. The Z2 Go has a TDP of 28 W with no suggested PSU listed.

Q: Does the Z2 Go have ray tracing hardware?

A: Yes, the Z2 Go lists 12 RT cores. The MI325X lists no RT cores.

Head-to-Head Benchmarks

The database contains no head-to-head benchmark entries between these two parts, so the comparison relies on the recorded specification data. The largest win for the MI325X is in memory bandwidth. It delivers 6.14 TB/s, while the Z2 Go delivers 102.4 GB/s. That is a 60-fold advantage. For any workload that streams large tensors or dataset blocks, this bandwidth gap dominates everything else. The MI325X’s FP32 throughput of 81.72 TFLOPS versus 4.147 TFLOPS is a 19.7x lead. Its texture rate of 2,553.6 GTexel/s versus 129.6 GTexel/s is also 19.7x. The transistor count difference is 153,000 million versus 13,100 million, an 11.7x lead. Die size is 1017 mm² versus 208 mm², a 4.9x lead. The MI325X also has 19,456 shading units versus 768, a 25.3x lead, and 1,216 TMUs versus 48, a 25.3x lead.

The Z2 Go’s largest wins are in pixel rate and feature set. It has 86.40 GPixel/s, while the MI325X has 0 MPixel/s. The Z2 Go has 32 ROPs; the MI325X has 0. The Z2 Go supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, all of which are N/A on the MI325X. The Z2 Go has 12 RT cores; the MI325X has none listed. The Z2 Go’s boost clock is 2700 MHz versus 2100 MHz on the MI325X, a 600 MHz difference. The Z2 Go’s FP16 throughput is 8.294 TFLOPS, which is higher than its FP32, while the MI325X’s FP16 equals its FP32 at 81.72 TFLOPS.

The Z2 Go also wins on process efficiency in terms of power. Its 28 W TDP allows operation in portable hardware, while the MI325X’s 1000 W TDP requires a 1400 W PSU and an OAM module form factor. The Z2 Go’s production status is Active, while the MI325X has no production status recorded. The Z2 Go’s release date is later, December 31, 2024, versus October 9, 2024 for the MI325X.

No benchmark score exists to determine which part performs better in any real application. The specification sheet shows that the MI325X is built for compute density and memory scale, while the Z2 Go is built for graphics output and low power. Every recorded number supports that split. The MI325X leads in compute, memory, and transistor count. The Z2 Go leads in rendering, API support, display output, and power efficiency. Neither part can claim a win in the other’s domain.