AMD Ryzen Z2 A GPU vs AMD Ryzen Z2 Go GPU Comparison

Head-to-Head Benchmarks

The recorded data for both the AMD Ryzen Z2 A GPU and the AMD Ryzen Z2 Go GPU contains no benchmark entries. The head-to-head benchmark comparison field is empty, and each GPU has an average benchmark score of zero. Neither unit registers a single win in the comparative dataset, and both sit at the 50th percentile against all GPUs in the database.

This absence of measured performance data means that direct numerical comparisons of frame rates, synthetic test scores, or workload-specific results cannot be made from the database. What the database does provide is a complete set of architectural specifications, which allows for a calculated comparison of theoretical throughput limits. The FP32 compute figures, pixel throughput, and texture throughput are all recorded values, and these serve as the only quantitative basis for distinguishing the two parts.

The raw compute figures show a substantial gap. The Ryzen Z2 A GPU delivers 1.638 TFLOPS of FP32 performance, while the Ryzen Z2 Go GPU delivers 4.147 TFLOPS. That places the Z2 Go at roughly 2.5 times the FP32 throughput of the Z2 A. The FP16 numbers follow the same ratio: 3.277 TFLOPS for the Z2 A versus 8.294 TFLOPS for the Z2 Go, both at a 2:1 ratio relative to FP32.

Pixel and texture rates reinforce this divide. The Z2 A GPU outputs 25.60 GPixel/s and 51.20 GTexel/s. The Z2 Go GPU outputs 86.40 GPixel/s and 129.6 GTexel/s. In both cases, the Z2 Go holds a clear lead, with pixel throughput roughly 3.4 times higher and texture throughput roughly 2.5 times higher. These are the largest recorded performance deltas between the two parts, and they directly reflect the differences in shading units, TMUs, and ROPs.

Memory performance is identical. Both GPUs use 16 GB of LPDDR5 memory on a 128-bit bus, with a bandwidth of 102.4 GB/s. The memory clock is the same for both at 800 MHz, or 6.4 Gbps effective. This means that memory-bound workloads will not differentiate between the two parts; the advantage for the Z2 Go exists entirely on the compute and rasterization side.

Architecture Differences

Both GPUs share the RDNA 2.0 architecture and both are manufactured by TSMC, but the underlying chips and process nodes differ. The Ryzen Z2 A GPU uses the Van Gogh chip built on a 7 nm process, with 2,400 million transistors on a 163 mm² die. The transistor density is recorded at 14.7 million transistors per square millimeter.

The Ryzen Z2 Go GPU uses the Rembrandt+ chip built on a 6 nm process. It carries 13,100 million transistors on a 208 mm² die, giving a transistor density of 63.0 million transistors per square millimeter. The Z2 Go die is physically larger by 45 mm², but the 6 nm node allows it to pack more than five times the transistor count into that space. The density figure is roughly 4.3 times higher on the Z2 Go.

The compute resources scale accordingly. The Z2 A GPU has 512 shading units, 32 texture mapping units, 16 ROPs, and 8 ray tracing cores. The Z2 Go GPU has 768 shading units, 48 TMUs, 32 ROPs, and 12 ray tracing cores. Every functional block is larger on the Z2 Go, which explains the throughput figures recorded in the database.

Clock behavior also differs. The Z2 A GPU has a base clock of 1000 MHz and a boost clock of 1600 MHz. The Z2 Go GPU has a lower base clock of 800 MHz but a much higher boost clock of 2700 MHz. The Z2 Go also carries a higher TDP of 28 W, compared to 15 W for the Z2 A. The power envelope is the clearest trade-off: the Z2 Go draws more power to sustain its higher boost frequency and larger execution units.

Both GPUs support the same API set: DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. Both have a single USB Type-C display output. Neither has a recorded bus interface, slot width, or power connector requirement, though the Z2 Go is explicitly recorded as having no power connectors. Both parts are listed as Active production status and share the same release date.

Where Each One Wins

The database shows no benchmark wins for either GPU, so any use-case split must be inferred from the recorded specifications rather than measured results.

The Z2 Go GPU wins on every recorded compute and rasterization metric. Its FP32 throughput of 4.147 TFLOPS is more than double the Z2 A's 1.638 TFLOPS. Its FP16 throughput of 8.294 TFLOPS likewise doubles the Z2 A's 3.277 TFLOPS. Pixel rate and texture rate are both substantially higher, and the Z2 Go has more shading units, TMUs, ROPs, and ray tracing cores. For any workload that stresses the GPU core, the Z2 Go is the stronger part on paper.

The Z2 A GPU wins on power efficiency. Its TDP of 15 W is 13 W lower than the Z2 Go's 28 W. It also has a lower boost clock of 1600 MHz against 2700 MHz, which suggests less aggressive power draw under load. The die is smaller at 163 mm² against 208 mm², and the transistor count is far lower at 2,400 million versus 13,100 million. For scenarios where sustained power draw is the limiting factor, the Z2 A is the more restrained option.

The Z2 A also holds an advantage in base clock frequency. Its 1000 MHz base clock exceeds the Z2 Go's 800 MHz base clock. In lightly threaded or idle-to-moderate states, the Z2 A may hold its frequency more readily, though no benchmark data confirms this behavior.

Memory capacity, type, bus width, and bandwidth are identical between the two. The 16 GB LPDDR5 pool, 128-bit bus, and 102.4 GB/s bandwidth mean that neither GPU has a memory advantage. Workloads that are memory-bound rather than compute-bound will see no difference between the two parts based on the recorded data.

Specification Differences

The two GPUs differ in nearly every core specification except memory and API support. The Z2 A GPU uses the Van Gogh chip on a 7 nm TSMC process, while the Z2 Go GPU uses the Rembrandt+ chip on a 6 nm TSMC process. Transistor count is 2,400 million versus 13,100 million. Die size is 163 mm² versus 208 mm². Transistor density is 14.7 million per mm² versus 63.0 million per mm².

The Z2 A GPU has a base clock of 1000 MHz and a boost clock of 1600 MHz. The Z2 Go GPU has a base clock of 800 MHz and a boost clock of 2700 MHz. Both have the same memory clock of 800 MHz with 6.4 Gbps effective transfer.

Shader resources differ. The Z2 A has 512 shading units, 32 TMUs, 16 ROPs, and 8 ray tracing cores. The Z2 Go has 768 shading units, 48 TMUs, 32 ROPs, and 12 ray tracing cores.

Throughput figures differ. The Z2 A records 25.60 GPixel/s, 51.20 GTexel/s, 1.638 TFLOPS FP32, and 3.277 TFLOPS FP16. The Z2 Go records 86.40 GPixel/s, 129.6 GTexel/s, 4.147 TFLOPS FP32, and 8.294 TFLOPS FP16.

TDP is 15 W for the Z2 A and 28 W for the Z2 Go. The Z2 Go lists no power connectors, while the Z2 A has no recorded power connector field. Both use 16 GB of LPDDR5 on a 128-bit bus with 102.4 GB/s bandwidth, and both output through a single USB Type-C port. Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. Both are Active production parts with the same release date.

FAQ

Q: Which GPU has higher raw compute performance?

A: The AMD Ryzen Z2 Go GPU. It delivers 4.147 TFLOPS FP32 and 8.294 TFLOPS FP16, compared to 1.638 TFLOPS FP32 and 3.277 TFLOPS FP16 for the AMD Ryzen Z2 A GPU.

Q: Do the two GPUs have the same memory configuration?

A: Yes. Both have 16 GB of LPDDR5 memory on a 128-bit bus, with 102.4 GB/s bandwidth and a memory clock of 800 MHz (6.4 Gbps effective).

Q: Which GPU has the higher boost clock?

A: The AMD Ryzen Z2 Go GPU, with a boost clock of 2700 MHz. The AMD Ryzen Z2 A GPU has a boost clock of 1600 MHz. The Z2 A does have a higher base clock at 1000 MHz versus 800 MHz.

Q: How do the power requirements compare?

A: The AMD Ryzen Z2 A GPU has a TDP of 15 W, while the AMD Ryzen Z2 Go GPU has a TDP of 28 W. The Z2 Go is also recorded as having no power connectors.

Q: Do both GPUs support ray tracing?

A: Yes. Both are RDNA 2.0 parts with ray tracing cores. The AMD Ryzen Z2 A GPU has 8 ray tracing cores, while the AMD Ryzen Z2 Go GPU has 12.

Q: Are there any benchmark scores available for either GPU?

A: No. The database lists no benchmark entries for either GPU, and both have an average benchmark score of zero.

The Verdict

The database provides no measured benchmark results for either GPU, so the verdict rests entirely on the recorded specifications. The AMD Ryzen Z2 Go GPU is the stronger part on every compute and rasterization metric. Its FP32 throughput is 2.5 times higher, its pixel rate is 3.4 times higher, and its texture rate is 2.5 times higher. It packs more shading units, TMUs, ROPs, and ray tracing cores, and it boosts to a substantially higher clock frequency. The cost of that performance is a 28 W TDP against the Z2 A's 15 W.

The AMD Ryzen Z2 A GPU is the more conservative part. It runs at a lower TDP, has a higher base clock, and uses a smaller die with far fewer transistors. Its 1.638 TFLOPS FP32 output is still relevant for lighter workloads, but the data shows no scenario where it outperforms the Z2 Go in raw throughput. The identical memory subsystem means the Z2 A cannot offset its compute deficit with bandwidth.

Buyers who prioritize peak GPU throughput should select the Ryzen Z2 Go GPU. Buyers who need the lower 15 W power envelope and do not require the higher compute, pixel, or texture rates should consider the Ryzen Z2 A GPU. The choice between the two is a choice between compute headroom and power restraint, since every core specification except memory and API support favors the Z2 Go.