AMD Radeon PRO W7900D vs AMD Steam Machine GPU Comparison

Head-to-Head Benchmarks

The recorded database contains no direct head-to-head benchmark scores for the AMD Radeon PRO W7900D versus the AMD Steam Machine GPU. Both entries list an empty benchmark array, zero average benchmark scores, and zero wins in their respective head-to-head fields. This absence of measured results means the comparison must be built entirely from the specification data and architectural characteristics recorded for each part.

What the data does show is a stark performance-class separation. The Radeon PRO W7900D delivers 52.99 TFLOPS of FP32 compute, while the Steam Machine GPU delivers 17.56 TFLOPS. That places the workstation card at roughly three times the raw floating-point throughput of the console-oriented GPU. The gap in texture processing is similarly wide: 827.9 GTexel/s against 274.4 GTexel/s, a 3.0x difference. Pixel throughput follows the same pattern, with the W7900D reaching 414.0 GPixel/s versus 156.8 GPixel/s for the Steam Machine GPU, a 2.6x margin.

Memory bandwidth separates the two even more decisively. The W7900D uses a 384-bit bus with 48 GB of GDDR6 at 864.0 GB/s, while the Steam Machine GPU uses a 128-bit bus with 8 GB of GDDR6 at 288.0 GB/s. The workstation part holds a 3.0x bandwidth advantage. The memory capacity gap is larger still: 48 GB versus 8 GB, a 6x difference that directly impacts the size of datasets each GPU can hold locally.

The shading resources tell the same story. The W7900D carries 6144 shading units, 384 texture mapping units, 192 render output units, and 96 ray tracing cores. The Steam Machine GPU carries 1792 shading units, 112 TMUs, 64 ROPs, and 28 ray tracing cores. In every category, the workstation GPU has between 3.0x and 3.4x the hardware resources of the console GPU. The ray tracing core count is 3.4x higher on the W7900D, the shading unit count is 3.4x higher, the TMU count is 3.4x higher, and the ROP count is exactly 3.0x higher.

Clock speeds provide the only area where the Steam Machine GPU leads. Its base clock runs at 1720 MHz, its game clock at 2250 MHz, and its boost clock at 2450 MHz. The W7900D counters with a 1327 MHz base and a 2156 MHz boost, with no game clock recorded. The Steam Machine GPU therefore operates at roughly 1.3x the base frequency and 1.14x the boost frequency of the workstation card. This clock advantage is real but insufficient to close the resource-count gap, as the TFLOPS and throughput figures demonstrate.

Both GPUs share identical API support: DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. Neither supports tensor cores, and both list FP16 at a 1:1 ratio with FP32. The power envelope differs substantially, with the W7900D rated at 295 W and the Steam Machine GPU at 110 W, but the performance per watt cannot be calculated from the recorded data alone.

The percentile versus all GPUs is 50 for both entries, though this appears to be a default value given the absence of benchmark scores. The zero average benchmark score for both parts confirms that no measured performance data exists in the database for either GPU at this time.

The Verdict

The data points to a clear division of purpose. The AMD Radeon PRO W7900D is built for workloads that demand maximum compute throughput, large memory capacity, and high bandwidth. Its 52.99 TFLOPS FP32, 48 GB GDDR6, and 864.0 GB/s bandwidth place it in a workstation class where large datasets and heavy parallel computation are the norm. The 96 ray tracing cores and 6144 shading units reinforce this positioning for rendering and simulation tasks.

The AMD Steam Machine GPU is configured for a different environment. Its 17.56 TFLOPS FP32, 8 GB GDDR6, and 288.0 GB/s bandwidth suit a console form factor where power draw is limited to 110 W and physical dimensions are constrained. The smaller die, 204 mm² versus 529 mm², and lower transistor count, 13,300 million versus 57,700 million, reflect a design optimized for efficiency and integration rather than absolute performance.

Who should pick which depends on the workload. For compute-heavy professional tasks such as 3D rendering, video processing, or scientific simulation, the W7900D offers roughly three times the FP32 throughput and six times the memory capacity. For a console-style gaming environment or a compact system with strict power limits, the Steam Machine GPU provides the higher clock speeds and a much lower 110 W power draw, which the data shows is less than half the W7900D's 295 W rating.

Neither part has recorded benchmark scores, so the verdict rests on the specification sheet. The W7900D is the performance leader by every compute metric. The Steam Machine GPU is the efficiency-oriented option with a smaller physical footprint and no external power connectors required.

Architecture Differences

Both GPUs use the RDNA 3.0 architecture and are fabricated by TSMC, but they diverge at the chip level. The W7900D uses the Navi 31 chip with the codename Plum Bonito, while the Steam Machine GPU uses the Navi 33 chip with the codename Hotpink Bonefish. The process nodes differ: the W7900D is built on a 5 nm process, while the Steam Machine GPU uses a 6 nm process.

The transistor counts reflect the scale difference. The Navi 31 chip packs 57,700 million transistors into a 529 mm² die, yielding a transistor density of 109.1 million transistors per square millimeter. The Navi 33 chip contains 13,300 million transistors on a 204 mm² die, with a density of 65.2 million per square millimeter. The W7900D die is 2.6x larger in area and holds 4.3x more transistors.

The generation labels differ as well. The W7900D belongs to the Radeon Pro Navi (Navi III Series) generation, with the Radeon Pro Vega as its recorded predecessor. The Steam Machine GPU belongs to the Console GPU (Valve) generation and has no recorded predecessor. The W7900D also has no successor listed, and neither part lists a successor in the database.

Both support the same API set: DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. Neither has tensor cores. Both list FP16 compute at a 1:1 ratio with FP32, which indicates no dedicated half-precision acceleration separate from the standard shader pipeline.

The ray tracing implementation differs in scale, not in architecture. The W7900D has 96 ray tracing cores, while the Steam Machine GPU has 28. This is a 3.4x difference in ray tracing hardware, which translates directly to the potential ray tracing throughput, though no benchmark scores confirm the real-world impact.

Specification Differences

The two GPUs differ across nearly every recorded specification field. The W7900D has a base clock of 1327 MHz and a boost clock of 2156 MHz, with no game clock recorded. 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 Steam Machine GPU clocks higher in every recorded category.

Memory specifications diverge completely. The W7900D uses 48 GB of GDDR6 on a 384-bit bus with 864.0 GB/s bandwidth. The Steam Machine GPU uses 8 GB of GDDR6 on a 128-bit bus with 288.0 GB/s bandwidth. The memory clock is identical at 2250 MHz with 18 Gbps effective for both.

Shader resources show a consistent 3.0x to 3.4x advantage for the W7900D. The W7900D has 6144 shading units, 384 TMUs, 192 ROPs, and 96 ray tracing cores. The Steam Machine GPU has 1792 shading units, 112 TMUs, 64 ROPs, and 28 ray tracing cores. The pixel rate is 414.0 GPixel/s for the W7900D and 156.8 GPixel/s for the Steam Machine GPU. The texture rate is 827.9 GTexel/s versus 274.4 GTexel/s.

Power and physical specifications also differ. The W7900D is rated at 295 W with a triple-slot cooler design, 2x 8-pin power connectors, and a suggested PSU of 600 W. Its dimensions are 280 mm in length, 110 mm in height, and 51 mm in width. The Steam Machine GPU is rated at 110 W, has no recorded slot width, no power connectors, and no suggested PSU. Its dimensions are 156 mm in length, 152 mm in height, and 162 mm in width, which is a more cube-like form factor.

The bus interface and display outputs differ as well. The W7900D uses PCIe 4.0 x16 and offers 3x DisplayPort 2.1 plus 1x mini-DisplayPort 2.1. The Steam Machine GPU has no recorded bus interface and offers 1x HDMI 2.1a plus 1x DisplayPort 2.1. The production status is Active for both.

The release dates place the Steam Machine GPU later, with the W7900D released on September 24, 2025, and the Steam Machine GPU on June 28, 2026. Neither lists a launch MSRP in the database.

FAQ

Q: Which GPU has higher FP32 compute performance?

A: The AMD Radeon PRO W7900D delivers 52.99 TFLOPS of FP32 compute, while the AMD Steam Machine GPU delivers 17.56 TFLOPS. The W7900D holds a 3.0x advantage in raw floating-point throughput.

Q: How much memory does each GPU have and what is the bandwidth?

A: The W7900D has 48 GB of GDDR6 on a 384-bit bus with 864.0 GB/s bandwidth. The Steam Machine GPU has 8 GB of GDDR6 on a 128-bit bus with 288.0 GB/s bandwidth. The W7900D offers 6x the capacity and 3x the bandwidth.

Q: What are the clock speed differences between the two?

A: The Steam Machine GPU runs at higher clocks: 1720 MHz base, 2250 MHz game, and 2450 MHz boost. The W7900D runs at 1327 MHz base and 2156 MHz boost, with no game clock recorded.

Q: Do both GPUs support the same APIs?

A: Yes, both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. Neither has tensor cores, and both list FP16 at a 1:1 ratio with FP32.

Q: What is the power draw of each GPU?

A: The W7900D is rated at 295 W with 2x 8-pin power connectors and a suggested PSU of 600 W. The Steam Machine GPU is rated at 110 W with no power connectors and no suggested PSU recorded.

Q: What process nodes do the two chips use?

A: The W7900D uses a 5 nm process with the Navi 31 chip, while the Steam Machine GPU uses a 6 nm process with the Navi 33 chip. Both are fabricated by TSMC.

Where Each One Wins

The AMD Radeon PRO W7900D wins in every compute throughput category recorded in the database. It delivers 52.99 TFLOPS FP32 versus 17.56 TFLOPS, 827.9 GTexel/s versus 274.4 GTexel/s, and 414.0 GPixel/s versus 156.8 GPixel/s. Its 48 GB memory capacity, 864.0 GB/s bandwidth, 384-bit bus, and 96 ray tracing cores make it the clear choice for workloads that require large memory footprints, high bandwidth, and substantial parallel compute resources. The 6144 shading units and 384 TMUs provide the hardware foundation for heavy 3D rendering and simulation tasks. The triple-slot cooler and 600 W suggested PSU indicate a workstation-class installation environment.

The AMD Steam Machine GPU wins in clock speed and power efficiency. Its 1720 MHz base clock, 2250 MHz game clock, and 2450 MHz boost clock all exceed the W7900D's 1327 MHz base and 2156 MHz boost. The 110 W power draw is less than half the W7900D's 295 W rating, and the absence of power connectors suggests a plug-and-play console-style integration. The smaller 204 mm² die and 156 mm by 152 mm by 162 mm dimensions fit a compact chassis. Its 8 GB memory and 288.0 GB/s bandwidth suit a console gaming context where the GPU works alongside a fixed hardware platform rather than processing large professional datasets.

The data does not include any benchmark scores, so these wins are derived strictly from the specification comparisons. The W7900D is the compute and memory leader. The Steam Machine GPU is the clock-speed and power-efficiency leader. The choice between them follows directly from whether the workload prioritizes maximum throughput or minimum power draw and physical footprint.