AMD Ryzen Z2 Extreme GPU vs AMD Steam Machine GPU Comparison

The AMD Ryzen Z2 Extreme GPU and the AMD Steam Machine GPU represent two distinct approaches to console-class graphics, one integrated and one discrete. The recorded data shows a fundamental divergence in design philosophy, target power envelope, and raw performance capability, despite both sharing the AMD family name and support for the same modern API feature sets. This analysis draws exclusively from the database measurements to contrast the two parts.

Head-to-Head Benchmarks

The database contains a direct performance measurement for the AMD Ryzen Z2 Extreme GPU. Its average benchmark score is recorded at 516 points in the 3DMark Steel Nomad DX12 test. This places the integrated part at the 1st percentile of all GPUs in the database, indicating that its absolute performance level is very low compared to the broader spectrum of available graphics hardware. The nearest rivals in the database for this part are all legacy or low-power components, which contextualizes its position. The Ryzen Z2 Extreme GPU scores 3.4% below the Intel HD Graphics P4000, which averages 534 points. It also sits 3.7% behind the AMD Radeon HD 6870, which averages 536 points. Conversely, the integrated GPU is 6.6% ahead of the AMD Radeon HD 6750M, which averages 484 points, but it trails the AMD Radeon HD 6770M by 9.3%, with that part averaging 569 points. These deltas show a narrow performance window around the 500-point mark for the Ryzen Z2 Extreme GPU.

The AMD Steam Machine GPU presents a different situation in the database. It has no recorded benchmark scores, resulting in an average benchmark score of zero. Its percentile rank is listed at 50, which is the median position for all GPUs, but this ranking is based on the available data structure rather than a measured score. The head-to-head benchmark array between the two items is empty, and the win counters for both parts are zero. Consequently, there is no direct numerical comparison available from our measurements. The data confirms that the Steam Machine GPU has not been subjected to the same standardized testing, so any quantitative comparison must rely on the architectural specifications and the recorded performance class of the Ryzen Z2 Extreme GPU, which is firmly anchored near the bottom of the database.

Architecture Differences

The two GPUs are built on different process nodes and use different underlying architectures. The Ryzen Z2 Extreme GPU is fabricated on a 4 nm process at TSMC, while the Steam Machine GPU uses a 6 nm process, also from TSMC. The Ryzen Z2 Extreme GPU is based on the RDNA 3.5 architecture and uses the Strix Point chip. The Steam Machine GPU is based on the older RDNA 3.0 architecture and uses the Navi 33 chip, which carries the codename Hotpink Bonefish. The process node difference gives the Ryzen part a higher transistor density of 145.9 million transistors per square millimeter, compared to 65.2 million per square millimeter for the Steam Machine GPU. The Ryzen chip contains 34,000 million transistors on a die size of 233 mm². The Steam Machine GPU contains 13,300 million transistors on a smaller die of 204 mm². This means the Ryzen part packs more than twice the transistor count into a slightly larger die, a direct result of the denser 4 nm process.

The execution resources are distributed very differently. The Ryzen Z2 Extreme GPU has 1024 shading units, 64 texture mapping units, and 48 render output units. It also includes 16 ray tracing cores. The Steam Machine GPU has 1792 shading units, 112 texture mapping units, and 64 render output units, along with 28 ray tracing cores. The discrete part has significantly more shader throughput and texture processing capacity. The clock speeds also differ. The Ryzen Z2 Extreme GPU 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 game clock of 2250 MHz, and a boost clock of 2450 MHz. The integrated part has a higher peak boost frequency, but its base clock is much lower. The Steam Machine GPU operates with a much higher sustained baseline.

Memory subsystems are entirely different. The Ryzen Z2 Extreme GPU uses 16 GB of LPDDR5X memory on a 128-bit bus, with a memory clock of 1000 MHz and 8 Gbps effective speed. This yields a bandwidth of 128.0 GB/s. The Steam Machine GPU uses 8 GB of GDDR6 memory on the same 128-bit bus width, but with a memory clock of 2250 MHz and 18 Gbps effective speed. This results in a bandwidth of 288.0 GB/s. The Steam Machine GPU has more than double the memory bandwidth of the Ryzen part, despite having half the capacity. The power envelopes are also starkly different. The Ryzen Z2 Extreme GPU has a TDP of 28 W, while the Steam Machine GPU has a TDP of 110 W.

Where Each One Wins

The Ryzen Z2 Extreme GPU wins in efficiency and integration. Its 28 W TDP is dramatically lower than the 110 W TDP of the Steam Machine GPU. It also uses LPDDR5X memory, which is typically soldered and power-efficient, and it requires no power connectors, as does the Steam Machine GPU. The integrated part also has double the memory capacity at 16 GB, which can be an advantage for workloads that require large working sets, even if the bandwidth is lower. The display output is a single USB Type-C connector, which simplifies cabling in a compact system. The Ryzen part also uses the newer RDNA 3.5 architecture, which in the database is listed with a 1:1 FP16 to FP32 ratio, matching the Steam Machine GPU.

The Steam Machine GPU wins decisively in raw compute and memory throughput. Its FP32 performance is recorded at 17.56 TFLOPS, compared to 5.530 TFLOPS for the Ryzen Z2 Extreme GPU. That is a substantial delta in raw shader output. The texture rate is 274.4 GTexel/s versus 172.8 GTexel/s, and the pixel rate is 156.8 GPixel/s versus 129.6 GPixel/s. The memory bandwidth advantage is also clear, with 288.0 GB/s versus 128.0 GB/s. The Steam Machine GPU also has more shading units, TMUs, ROPs, and ray tracing cores. Its physical dimensions are recorded as 156 mm by 152 mm by 162 mm, which indicates a self-contained module design. It offers both an HDMI 2.1a output and a DisplayPort 2.1 output, giving it more flexible display connectivity than the single USB Type-C port on the Ryzen part. The Steam Machine GPU also has a higher transistor density in terms of performance per transistor, though the Ryzen part has higher density in terms of physical layout.

FAQ

Q: Which GPU has a higher FP32 performance in the database?

A: The AMD Steam Machine GPU has a recorded FP32 performance of 17.56 TFLOPS, while the AMD Ryzen Z2 Extreme GPU has 5.530 TFLOPS.

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

A: The Steam Machine GPU has a bandwidth of 288.0 GB/s using GDDR6 memory, while the Ryzen Z2 Extreme GPU has 128.0 GB/s using LPDDR5X memory.

Q: How do the power requirements compare?

A: The Ryzen Z2 Extreme GPU has a TDP of 28 W, and the Steam Machine GPU has a TDP of 110 W. Both parts require no power connectors according to the data.

Q: Which GPU has a better percentile ranking in the database?

A: The Steam Machine GPU is listed at the 50th percentile of all GPUs, while the Ryzen Z2 Extreme GPU is at the 1st percentile. However, the Steam Machine GPU has no recorded benchmark score, while the Ryzen part has an average score of 516.

Q: What memory capacity does each GPU support?

A: The Ryzen Z2 Extreme GPU supports 16 GB of LPDDR5X, and the Steam Machine GPU supports 8 GB of GDDR6.

Q: Are both GPUs based on the same architecture?

A: No. The Ryzen Z2 Extreme GPU uses RDNA 3.5, while the Steam Machine GPU uses RDNA 3.0.

The Verdict

The data indicates that the AMD Steam Machine GPU is the far more powerful graphics processor. Its FP32 throughput, texture rate, pixel rate, and memory bandwidth are all significantly higher than the corresponding figures for the Ryzen Z2 Extreme GPU. The 17.56 TFLOPS versus 5.530 TFLOPS gap in raw compute is the defining difference. The Steam Machine GPU also has more shading units, TMUs, ROPs, and ray tracing cores, and it operates with a much higher base clock and game clock. Its 50th percentile ranking, even without a measured score, places it in the middle of the database, whereas the Ryzen part sits at the 1st percentile with a measured average score of 516.

The Ryzen Z2 Extreme GPU is the appropriate choice for systems where power consumption is the primary constraint. Its 28 W TDP is a fraction of the Steam Machine GPU's 110 W TDP. The integrated nature of the Ryzen part, using LPDDR5X memory and a single USB Type-C output, suggests it is designed for compact, low-power handheld or embedded devices. Its 16 GB memory capacity is double that of the Steam Machine GPU, which may be useful for certain memory-intensive tasks, but the lower bandwidth limits its ability to feed the GPU cores effectively.

The Steam Machine GPU, by contrast, is a discrete module with its own cooling and power budget. Its physical dimensions of 156 mm by 152 mm by 162 mm and its dual display outputs (HDMI 2.1a and DisplayPort 2.1) indicate a more traditional console-style component. Users who prioritize frame rates, resolution scaling, or ray tracing performance should favor the Steam Machine GPU based on the recorded compute and memory advantages. Users who need a low-power integrated solution with a larger memory pool should consider the Ryzen Z2 Extreme GPU. The two parts are not direct competitors; they serve different segments of the console GPU market, and the database confirms that the Steam Machine GPU is the higher-performance part by a wide margin.

Specification Differences

The following fields differ between the two parts in the database.

| Field | AMD Ryzen Z2 Extreme GPU | AMD Steam Machine GPU |

| :--- | :--- | :--- |

| Architecture | RDNA 3.5 | RDNA 3.0 |

| Codename | null | Hotpink Bonefish |

| Generation | Console GPU (AMD) | Console GPU (Valve) |

| Process Node | 4 nm | 6 nm |

| Transistors | 34,000 million | 13,300 million |

| Die Size | 233 mm² | 204 mm² |

| Transistor Density | 145.9M / mm² | 65.2M / mm² |

| Base Clock | 800 MHz | 1720 MHz |

| Boost Clock | 2700 MHz | 2450 MHz |

| Game Clock | null | 2250 MHz |

| Memory Clock | 1000 MHz 8 Gbps effective | 2250 MHz 18 Gbps effective |

| Memory Size | 16 GB | 8 GB |

| Memory Type | LPDDR5X | GDDR6 |

| Memory Bandwidth | 128.0 GB/s | 288.0 GB/s |

| Shading Units | 1024 | 1792 |

| TMUs | 64 | 112 |

| ROPs | 48 | 64 |

| RT Cores | 16 | 28 |

| Pixel Rate | 129.6 GPixel/s | 156.8 GPixel/s |

| Texture Rate | 172.8 GTexel/s | 274.4 GTexel/s |

| FP32 | 5.530 TFLOPS | 17.56 TFLOPS |

| FP16 | 5.530 TFLOPS (1:1) | 17.56 TFLOPS (1:1) |

| TDP | 28 W | 110 W |

| Display Outputs | 1x USB Type-C | 1x HDMI 2.1a, 1x DisplayPort 2.1 |

| Dimensions | null | 156 mm 6.1 inches, 152 mm 6 inches, 162 mm 6.4 inches |

| Release Date | 2025-07-08 | 2026-06-28 |

| Avg Benchmark Score | 516 | 0 |

| Percentile vs All GPUs | 1 | 50 |