AMD Ryzen Z1 Extreme GPU vs AMD Steam Machine GPU Comparison

Head-to-Head Benchmarks

The recorded database contains no benchmark scores for either the AMD Ryzen Z1 Extreme GPU or the AMD Steam Machine GPU. The head-to-head benchmark table is empty, and the average benchmark score for both parts is 0. Consequently, direct performance comparisons based on measured frames per second, synthetic scores, or real-world application tests cannot be established from the available data. Both GPUs sit at the 50th percentile against all GPUs in the database, indicating they occupy a mid-pack position overall, but this percentile is derived from an empty benchmark set and does not reflect any computed performance advantage.

Without recorded measurements, the most concrete performance indicators come from the theoretical specifications. The AMD Steam Machine GPU delivers 17.56 TFLOPS of FP32 compute, which is more than double the 8.294 TFLOPS of the AMD Ryzen Z1 Extreme GPU. The Steam Machine part also leads in texture throughput, with 274.4 GTexel/s versus 129.6 GTexel/s, and in pixel fill rate, with 156.8 GPixel/s versus 86.40 GPixel/s. These figures suggest the Steam Machine GPU has a substantial raw computational advantage on paper, but the absence of benchmark data means no verified performance delta can be reported from actual tests.

The memory subsystem also differs sharply. The Steam Machine GPU uses 8 GB of GDDR6 across a 128-bit bus, yielding 288.0 GB/s of bandwidth. The Ryzen Z1 Extreme GPU uses 16 GB of LPDDR5 across a 64-bit bus, yielding 51.20 GB/s. The bandwidth gap is a factor of 5.6, which would likely manifest in memory-bound workloads, but again, no benchmark confirms this. The Ryzen Z1 Extreme’s larger capacity could benefit titles that exceed 8 GB of VRAM, but the Steam Machine’s vastly higher bandwidth points toward better sustained throughput in typical gaming scenarios.

Both parts share the same RDNA 3.0 architecture and identical API support, including DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The Steam Machine GPU has 1792 shading units, 112 texture mapping units, 64 render output units, and 28 ray tracing cores. The Ryzen Z1 Extreme GPU has 768 shading units, 48 TMUs, 32 ROPs, and 12 ray tracing cores. These are clear theoretical deltas, but the database has no wins recorded for either side (winsA: 0, winsB: 0), so no definitive head-to-head verdict can be issued from measured outcomes.

The thermal design power differs as well. The Steam Machine GPU is rated at 110 W, while the Ryzen Z1 Extreme GPU is rated at 30 W. That 80 W difference suggests the Steam Machine part is intended for a larger, more power-hungry enclosure, while the Ryzen Z1 Extreme is built for a much more constrained power envelope. However, the database does not include any power efficiency benchmarks, so the real-world impact of this disparity remains unquantified in the recorded data.

In summary, the head-to-head section of this page is defined by what is absent: no benchmark scores, no wins, and no measured deltas. The only reliable comparisons come from the specification sheet, which heavily favors the Steam Machine GPU in compute throughput, texture rate, pixel rate, and memory bandwidth, while the Ryzen Z1 Extreme counters with double the memory capacity and a significantly lower power draw. Any claim of actual performance superiority would be speculative without recorded test results.

Architecture Differences

The two GPUs are built on different process nodes despite both coming from AMD. The Ryzen Z1 Extreme GPU uses a 4 nm process at TSMC, while the Steam Machine GPU uses a 6 nm process at the same foundry. The die sizes also differ: the Ryzen Z1 Extreme measures 178 mm², and the Steam Machine GPU measures 204 mm². Transistor counts diverge substantially, with the Ryzen Z1 Extreme packing 25,390 million transistors versus 13,300 million in the Steam Machine GPU. This yields a transistor density of 142.6 million per square millimeter for the Ryzen Z1 Extreme, compared to 65.2 million per square millimeter for the Steam Machine GPU. The smaller node allows the Ryzen Z1 Extreme to fit nearly twice the transistors in a smaller area, which is a notable architectural distinction.

The chip codenames differ as well. The Ryzen Z1 Extreme uses the Phoenix chip, while the Steam Machine GPU uses the Navi 33 chip, with the codename "Hotpink Bonefish" recorded for the latter. The generation fields also separate them: the Ryzen Z1 Extreme is listed as "Console GPU (AMD)", and the Steam Machine GPU is listed as "Console GPU (Valve)". This generation label suggests the Steam Machine part is tied to Valve’s console ecosystem, whereas the Ryzen Z1 Extreme is an AMD-branded console GPU.

Clock speeds show a mixed picture. The Ryzen Z1 Extreme has a base clock of 800 MHz and a boost clock of 2700 MHz. The Steam Machine GPU has a base clock of 1720 MHz, a boost clock of 2450 MHz, and a game clock of 2250 MHz. The Steam Machine part starts much higher at base, but the Ryzen Z1 Extreme reaches a higher peak boost. The memory clocks also differ: the Ryzen Z1 Extreme runs at 800 MHz with 6.4 Gbps effective, while the Steam Machine GPU runs at 2250 MHz with 18 Gbps effective.

The memory type and bus width are fundamentally different. The Ryzen Z1 Extreme uses LPDDR5 with a 64-bit bus, while the Steam Machine GPU uses GDDR6 with a 128-bit bus. This leads to the bandwidth figures already noted: 51.20 GB/s versus 288.0 GB/s. The capacity difference (16 GB versus 8 GB) is also significant.

Ray tracing hardware differs in count, with 12 RT cores on the Ryzen Z1 Extreme and 28 RT cores on the Steam Machine GPU. The shading units, TMUs, and ROPs all scale similarly, with the Steam Machine part having more than double the shading units (1792 versus 768), more than double the TMUs (112 versus 48), and double the ROPs (64 versus 32). FP16 throughput also differs: the Ryzen Z1 Extreme delivers 16.59 TFLOPS at a 2:1 ratio, while the Steam Machine GPU delivers 17.56 TFLOPS at a 1:1 ratio, meaning the Steam Machine part maintains full FP16 rate without the halving that the Ryzen Z1 Extreme applies.

Display outputs diverge as well. The Ryzen Z1 Extreme offers a single USB Type-C output, while the Steam Machine GPU offers one HDMI 2.1a and one DisplayPort 2.1. Physical dimensions also differ: the Ryzen Z1 Extreme measures 280 mm in length, 111 mm in height, and 21 mm in width, while the Steam Machine GPU measures 156 mm in length, 152 mm in height, and 162 mm in width. The Ryzen Z1 Extreme is longer and thinner, while the Steam Machine GPU is shorter and much wider.

The power delivery architecture is different too. The Ryzen Z1 Extreme is rated at 30 W TDP and has no power connectors listed. The Steam Machine GPU is rated at 110 W TDP and also has no power connectors listed. Neither part has a suggested PSU value in the database.

The Verdict

The recorded data offers no measured performance to judge. The benchmark scores are zero, the head-to-head table is empty, and neither GPU has any recorded wins. Therefore, the verdict must be drawn strictly from the specification differences, with the caveat that theoretical specs do not always translate directly to real-world results.

From the spec sheet, the AMD Steam Machine GPU is the stronger compute part. It delivers 17.56 TFLOPS of FP32, which is 2.1 times the 8.294 TFLOPS of the Ryzen Z1 Extreme. It also has 2.1 times the shading units, 2.3 times the TMUs, 2 times the ROPs, and 2.3 times the ray tracing cores. The memory bandwidth advantage is even larger, at 5.6 times (288.0 GB/s versus 51.20 GB/s). These are substantial theoretical margins that would likely translate into higher frame rates in most gaming scenarios, assuming the rest of the system can feed the GPU properly.

The Ryzen Z1 Extreme counters with 16 GB of memory, which is double the 8 GB of the Steam Machine GPU. This capacity advantage could matter in titles that require more VRAM, particularly at higher resolutions or with heavy texture packs. The Ryzen Z1 Extreme also operates at a much lower TDP of 30 W versus 110 W, making it far more power-efficient on paper. Additionally, the Ryzen Z1 Extreme has a higher boost clock at 2700 MHz versus 2450 MHz, though its base clock is much lower at 800 MHz versus 1720 MHz.

The production status for both is Active, so neither is discontinued. The release dates differ: the Ryzen Z1 Extreme launched on 2023-06-12, while the Steam Machine GPU has a release date of 2026-06-28, which is later in the database timeline. The Ryzen Z1 Extreme has a launch MSRP of 699 USD, which can be stated once as a reference point. The Steam Machine GPU has no launch MSRP listed.

Given the data, the Steam Machine GPU is the better choice for raw compute and bandwidth-heavy workloads. The Ryzen Z1 Extreme is the better choice for constrained power environments and for scenarios where 16 GB of memory capacity is the priority. Without benchmark data, no further granularity can be provided. The database simply does not contain the measurements needed to declare a definitive winner in real-world testing.

Specification Differences

The following fields differ between the two GPUs:

• Chip: Phoenix (Ryzen Z1 Extreme) versus Navi 33 (Steam Machine GPU)
• Codename: None listed versus Hotpink Bonefish
• Generation: Console GPU (AMD) versus Console GPU (Valve)
• Process node: 4 nm versus 6 nm
• Transistors: 25,390 million versus 13,300 million
• Die size: 178 mm² versus 204 mm²
• Transistor density: 142.6M / mm² versus 65.2M / mm²
• Base clock: 800 MHz versus 1720 MHz
• Boost clock: 2700 MHz versus 2450 MHz
• Game clock: None listed versus 2250 MHz
• Memory clock: 800 MHz (6.4 Gbps effective) versus 2250 MHz (18 Gbps effective)
• Memory size: 16 GB versus 8 GB
• Memory type: LPDDR5 versus GDDR6
• Memory bus width: 64 bit versus 128 bit
• Memory bandwidth: 51.20 GB/s versus 288.0 GB/s
• Shading units: 768 versus 1792
• TMUs: 48 versus 112
• ROPs: 32 versus 64
• RT cores: 12 versus 28
• Pixel rate: 86.40 GPixel/s versus 156.8 GPixel/s
• Texture rate: 129.6 GTexel/s versus 274.4 GTexel/s
• FP32: 8.294 TFLOPS versus 17.56 TFLOPS
• FP16: 16.59 TFLOPS (2:1) versus 17.56 TFLOPS (1:1)
• TDP: 30 W versus 110 W
• Display outputs: 1x USB Type-C versus 1x HDMI 2.1a and 1x DisplayPort 2.1
• Dimensions (length): 280 mm versus 156 mm
• Dimensions (height): 111 mm versus 152 mm
• Dimensions (width): 21 mm versus 162 mm
• Release date: 2023-06-12 versus 2026-06-28
• Launch MSRP: 699 USD versus None

Fields that are identical include manufacturer (AMD), architecture (RDNA 3.0), foundry (TSMC), power connectors (None), suggested PSU (None), bus interface (None), DirectX version (12 Ultimate 12_2), OpenGL version (4.6), Vulkan version (1.4), and production status (Active).

FAQ

Q: Which GPU has higher FP32 compute performance?

A: The AMD Steam Machine GPU has 17.56 TFLOPS of FP32, which is more than double the 8.294 TFLOPS of the AMD Ryzen Z1 Extreme GPU.

Q: How much memory does each GPU have, and what type?

A: The AMD Ryzen Z1 Extreme GPU has 16 GB of LPDDR5, while the AMD Steam Machine GPU has 8 GB of GDDR6.

Q: What is the memory bandwidth difference?

A: The AMD Steam Machine GPU delivers 288.0 GB/s of bandwidth, while the AMD Ryzen Z1 Extreme GPU delivers 51.20 GB/s, a difference of 236.8 GB/s in favor of the Steam Machine part.

Q: What is the TDP of each GPU?

A: The AMD Ryzen Z1 Extreme GPU has a TDP of 30 W, and the AMD Steam Machine GPU has a TDP of 110 W.

Q: Are the APIs the same on both GPUs?

A: Yes, both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Q: What are the release dates for these GPUs?

A: The AMD Ryzen Z1 Extreme GPU has a release date of 2023-06-12, while the AMD Steam Machine GPU has a release date of 2026-06-28.

Q: Do either of these GPUs have recorded benchmark scores?

A: No. The average benchmark score for both is 0, and the head-to-head benchmark table is empty, so no measured performance data exists in the database.