AMD Ryzen Z1 Extreme GPU vs AMD Ryzen Z2 A GPU Comparison

The AMD Ryzen Z1 Extreme GPU and the AMD Ryzen Z2 A GPU are both console-class graphics processors from AMD, but they are built on different architectures and target different performance levels. The Z1 Extreme uses the Phoenix chip with RDNA 3.0 architecture on a 4 nm process, while the Z2 A uses the Van Gogh chip with RDNA 2.0 architecture on a 7 nm process. The recorded data shows a significant gap in raw compute capabilities, memory bandwidth, and power envelope between the two, which translates into distinct performance profiles for gaming and compute workloads.

Where Each One Wins

The AMD Ryzen Z1 Extreme GPU wins decisively in every metric that involves raw graphics throughput and shader processing. Its FP32 performance is 8.294 TFLOPS, which is roughly five times the FP32 output of the Z2 A at 1.638 TFLOPS. This advantage carries through to texture and pixel processing: the Z1 Extreme delivers 129.6 GTexel/s and 86.40 GPixel/s, while the Z2 A manages 51.20 GTexel/s and 25.60 GPixel/s. For any workload that relies on fill rate, such as high-resolution rendering or complex texture sampling, the Z1 Extreme is the clear leader.

The Z1 Extreme also has more shading units (768 vs. 512), more texture mapping units (48 vs. 32), more raster operations units (32 vs. 16), and more ray tracing cores (12 vs. 8). This means that in ray-traced scenes, the Z1 Extreme can process more intersection calculations and traversal operations per cycle. The architecture difference is also important: RDNA 3.0 provides a generational uplift over RDNA 2.0 in terms of instruction efficiency and feature support, even though both support DirectX 12 Ultimate (12_2) and Vulkan 1.4.

The Z2 A, however, wins in memory bandwidth per watt and in absolute memory bandwidth. The Z2 A has a 128 bit memory bus, giving it 102.4 GB/s of bandwidth, which is exactly double the 51.20 GB/s of the Z1 Extreme, which uses a 64 bit bus. Both have 16 GB of LPDDR5 memory, but the wider bus on the Z2 A allows for faster data transfer in bandwidth-sensitive scenarios such as 4K texture streaming or large physics simulations. The Z2 A also has a much lower power draw at 15 W, compared to the 30 W TDP of the Z1 Extreme. This makes the Z2 A more efficient in terms of performance per watt, especially for sustained workloads in compact devices.

The Verdict

The data indicates that the AMD Ryzen Z1 Extreme GPU is the stronger processor for any graphics-intensive task. Its FP32 throughput is over five times higher than the Z2 A, and its texture rate is more than 2.5 times higher. The Z1 Extreme also has a higher boost clock at 2700 MHz versus 1600 MHz, and a higher base clock at 800 MHz versus 1000 MHz (the Z2 A starts higher but peaks much lower). The Z1 Extreme is built on a more advanced 4 nm process with 25,390 million transistors, compared to 2,400 million transistors on the Z2 A's 7 nm process. This density advantage (142.6M / mm² vs. 14.7M / mm²) allows for more compute units in the same physical footprint.

The Z2 A wins only in memory bandwidth and power efficiency. Its 102.4 GB/s bandwidth is double that of the Z1 Extreme, and its 15 W TDP is half of the Z1 Extreme's 30 W. For applications that are purely bandwidth-bound, such as certain data-processing kernels or high-resolution video decode, the Z2 A may show relative strengths. However, for gaming, rendering, or any shader-heavy workload, the Z1 Extreme is the superior choice based on the recorded specifications.

The benchmark scores in the database are zero for both, and the percentile ranking is identical at 50, which means no direct comparative measurements are available. The analysis therefore relies on the architectural and specification differences. The Z1 Extreme should be selected when maximum graphical fidelity and frame rates are priorities, while the Z2 A is suited for scenarios where power draw and memory bandwidth are the limiting constraints.

Head-to-Head Benchmarks

The database currently has no recorded head-to-head benchmark entries for these two GPUs, and the win counts are zero for both. Without direct measurement data, the comparison must be derived from the published specifications. The most significant single-number gap is in FP32 compute: 8.294 TFLOPS for the Z1 Extreme versus 1.638 TFLOPS for the Z2 A. This is a 5.06x difference, meaning the Z1 Extreme can process more than five times as many floating-point operations per second. In practice, this translates to higher resolution rendering, more complex shaders, and smoother frame rates in demanding titles.

The texture fill rate shows a similar story. The Z1 Extreme outputs 129.6 GTexel/s, while the Z2 A outputs 51.20 GTexel/s, a 2.53x advantage for the Z1 Extreme. This affects how quickly textures can be sampled and filtered, which is crucial for modern games with high-detail surfaces. The pixel rate difference is even larger: 86.40 GPixel/s versus 25.60 GPixel/s, a 3.38x advantage. This directly impacts the number of pixels that can be written to the framebuffer per second, affecting resolution and anti-aliasing performance.

Ray tracing performance also favors the Z1 Extreme due to its 12 ray tracing cores versus 8 on the Z2 A. The RDNA 3.0 architecture in the Z1 Extreme supports the same DirectX 12 Ultimate feature set as the RDNA 2.0 in the Z2 A, but with more cores and higher clocks, the Z1 Extreme will deliver more ray tracing throughput. The memory bandwidth advantage of the Z2 A (102.4 GB/s vs. 51.20 GB/s) is the only major win for the Z2 A, and it is a 2x difference. This could matter for scenarios that stream large amounts of data, such as open-world games with extensive texture streaming or compute workloads that read and write to memory frequently.

The power envelope is another clear differentiator. The Z1 Extreme has a TDP of 30 W, while the Z2 A has a TDP of 15 W. This means the Z2 A can be cooled more easily and may be suitable for passively cooled designs or devices with strict thermal limits. The Z1 Extreme, with double the power budget, can sustain higher clocks and more active compute units.

FAQ

Q: Which GPU has higher raw compute performance?

A: The AMD Ryzen Z1 Extreme GPU has higher raw compute performance. Its FP32 output is 8.294 TFLOPS, compared to 1.638 TFLOPS for the AMD Ryzen Z2 A GPU.

Q: What is the memory bandwidth difference between the two?

A: The AMD Ryzen Z2 A GPU has double the memory bandwidth of the Z1 Extreme. The Z2 A provides 102.4 GB/s over a 128 bit bus, while the Z1 Extreme provides 51.20 GB/s over a 64 bit bus.

Q: Do both GPUs support ray tracing?

A: Yes, both support ray tracing. The Z1 Extreme has 12 ray tracing cores, and the Z2 A has 8 ray tracing cores. Both also support DirectX 12 Ultimate (12_2).

Q: What are the power consumption figures?

A: The Z1 Extreme has a TDP of 30 W, and the Z2 A has a TDP of 15 W. The Z2 A consumes half the power of the Z1 Extreme.

Q: Which GPU has more shading units?

A: The Z1 Extreme has more shading units, with 768 versus 512 on the Z2 A. It also has more texture mapping units (48 vs. 32) and more raster operations units (32 vs. 16).

Q: Are there any direct benchmark results comparing these two?

A: The database currently shows no head-to-head benchmark entries for these GPUs, and the average benchmark score for both is zero. The comparison is based on the recorded specifications.

Architecture Differences

The AMD Ryzen Z1 Extreme GPU uses the Phoenix chip, which is fabricated on a 4 nm process at TSMC. The chip contains 25,390 million transistors on a die size of 178 mm², resulting in a transistor density of 142.6M per mm². The architecture is RDNA 3.0, which is AMD's third-generation RDNA design. The base clock is 800 MHz with a boost clock of 2700 MHz. The memory is 16 GB of LPDDR5 on a 64 bit bus, giving 51.20 GB/s of bandwidth. The memory clock is 800 MHz, with an effective data rate of 6.4 Gbps.

The AMD Ryzen Z2 A GPU uses the Van Gogh chip, fabricated on a 7 nm process at TSMC. This chip contains 2,400 million transistors on a die size of 163 mm², giving a transistor density of 14.7M per mm². The architecture is RDNA 2.0. The base clock is 1000 MHz with a boost clock of 1600 MHz. The memory is also 16 GB of LPDDR5, but on a 128 bit bus, providing 102.4 GB/s of bandwidth. The memory clock is 800 MHz with the same 6.4 Gbps effective data rate.

The compute unit configuration differs significantly. The Z1 Extreme has 768 shading units, 48 TMUs, 32 ROPs, and 12 ray tracing cores. The Z2 A has 512 shading units, 32 TMUs, 16 ROPs, and 8 ray tracing cores. This gives the Z1 Extreme a pixel rate of 86.40 GPixel/s and a texture rate of 129.6 GTexel/s, versus 25.60 GPixel/s and 51.20 GTexel/s for the Z2 A. The FP16 performance is 16.59 TFLOPS for the Z1 Extreme (2:1 ratio) and 3.277 TFLOPS for the Z2 A (also 2:1).

Both GPUs support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. Both have a single USB Type-C display output. The Z1 Extreme has physical dimensions of 280 mm in length, 111 mm in height, and 21 mm in width, while the Z2 A has no recorded dimensions. The Z1 Extreme has no power connectors and a launch MSRP of 699 USD. The Z2 A has no launch MSRP recorded. Both are listed as Active in production status, with the Z1 Extreme released on 2023-06-12 and the Z2 A on 2024-12-31. The Z1 Extreme has a TDP of 30 W, and the Z2 A has a TDP of 15 W. The Z1 Extreme uses no power connectors, and the Z2 A has no power connector data listed.