AMD Steam Machine GPU vs NVIDIA GeForce RTX 5090 D Comparison

The Verdict

The database comparison places the AMD Steam Machine GPU and the NVIDIA GeForce RTX 5090 D at opposite ends of the performance spectrum. The RTX 5090 D sits at the 92nd percentile among all GPUs in the database, while the Steam Machine GPU is positioned at the 50th percentile. This percentile gap alone indicates a substantial difference in raw capability, but the data goes further. The RTX 5090 D records an average benchmark score of 77,712 points across ten tests, whereas the Steam Machine GPU has no recorded benchmark scores and an average score of zero, making direct numerical comparison impossible for most workloads.

The Steam Machine GPU, built for Valve's console platform, prioritizes efficiency and compact integration. The RTX 5090 D targets maximum desktop performance. Users seeking the highest possible frame rates and compute throughput should select the RTX 5090 D based on its recorded scores. Users constrained by power delivery, physical space, or console-specific requirements should consider the Steam Machine GPU, which draws 110 W versus the RTX 5090 D's 575 W. The launch MSRP of the RTX 5090 D is 2,299 USD. The Steam Machine GPU has no launch MSRP recorded. The data suggests these are not competing products in the traditional sense; they serve entirely different market segments.

Architecture Differences

The architectural divide between these two GPUs is generational and foundational. The AMD Steam Machine GPU uses the Navi 33 chip built on RDNA 3.0 architecture, codenamed Hotpink Bonefish, fabricated on a 6 nm process at TSMC. The NVIDIA GeForce RTX 5090 D uses the GB202 chip built on Blackwell 2.0 architecture, fabricated on a 5 nm process, also at TSMC. The process node difference is small, but the transistor counts reveal the scale gap. The Steam Machine GPU packs 13,300 million transistors on a 204 mm² die, yielding a transistor density of 65.2 million per square millimeter. The RTX 5090 D contains 92,200 million transistors on a 750 mm² die, achieving a density of 122.9 million per square millimeter. The RTX 5090 D has nearly seven times the transistor count and over three times the die area.

The compute resources diverge sharply. The Steam Machine GPU offers 1,792 shading units, 112 texture mapping units, 64 render output units, and 28 ray tracing cores. The RTX 5090 D provides 21,760 shading units, 680 TMUs, 176 ROPs, 170 RT cores, and 680 tensor cores. The Steam Machine GPU has no tensor cores recorded. Memory configurations also differ fundamentally. The Steam Machine GPU uses 8 GB of GDDR6 on a 128 bit bus, delivering 288.0 GB/s of bandwidth. The RTX 5090 D uses 32 GB of GDDR7 on a 512 bit bus, delivering 1.79 TB/s, a figure over six times higher. Clock speeds are closer than the rest of the specifications suggest. The Steam Machine GPU has a base clock of 1720 MHz and a boost clock of 2450 MHz, with a game clock of 2250 MHz. The RTX 5090 D has a base clock of 2017 MHz and a boost clock of 2407 MHz. The Steam Machine GPU actually boosts higher, but the massive difference in shading units and memory bandwidth decides performance outcomes.

Power and physical design follow the same pattern. The Steam Machine GPU has a TDP of 110 W, no power connectors, and dimensions of 156 mm by 152 mm by 162 mm. The RTX 5090 D has a TDP of 575 W, requires a single 16 pin power connector, a suggested PSU of 950 W, and measures 304 mm by 137 mm by 48 mm as a dual-slot card. The Steam Machine GPU is nearly half the length and consumes roughly one fifth the power. Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. Display outputs differ slightly: the Steam Machine GPU has 1x HDMI 2.1a and 1x DisplayPort 2.1, while the RTX 5090 D has 1x HDMI 2.1b and 3x DisplayPort 2.1b.

Head-to-Head Benchmarks

The database records ten benchmark scores for the RTX 5090 D but none for the Steam Machine GPU. This asymmetry means the head-to-head section must rely on the RTX 5090 D's absolute results and the Steam Machine GPU's architectural limits. The RTX 5090 D scores 14,326 in 3DMark Steel Nomad DX12, a test designed for modern rasterization and ray tracing workloads. In Geekbench OpenCL, it records 310,674 points, and in Geekbench Vulkan, it reaches 376,915 points. These two scores indicate strong compute and graphics API performance. Passmark results show 231 for DirectX 10, 371 for DirectX 11, 219 for DirectX 12, and 434 for DirectX 9. The DirectX 9 score is the highest among the legacy API tests, suggesting the architecture retains efficiency in older workloads despite its modern design.

The Passmark G2D score of 1,487 and G3D score of 44,065 place the RTX 5090 D well above typical desktop GPUs. The G3D score is particularly telling, as it represents aggregate 3D rendering performance across multiple scenarios. The Passmark GPU Compute score of 28,396 shows the card handles general compute tasks effectively. The average benchmark score of 77,712 across all ten tests positions the RTX 5090 D near several AMD mobile GPUs in the database. It is 1.1% ahead of the AMD Radeon RX 6650M XT, which scores 76,904. It is 1.6% behind the AMD Radeon RX 6850M XT, which scores 78,940. It trails the NVIDIA Tesla P100 PCIe 12 GB by 2.1% (that card scores 79,396) and the NVIDIA Tesla P100 PCIe 16 GB by 2.4% (that card scores 79,605). These delta percentages are narrow, indicating the RTX 5090 D's average score is competitive with high-end workstation and mobile parts, despite its massive transistor count and power draw.

The Steam Machine GPU has no recorded wins in this comparison because it has no benchmark entries. Its theoretical peak, based on 17.56 TFLOPS FP32 and 17.56 TFLOPS FP16 (1:1), would place it far below the RTX 5090 D's 104.8 TFLOPS in both precision modes. The pixel rate of 156.8 GPixel/s and texture rate of 274.4 GTexel/s for the Steam Machine GPU compare to 423.6 GPixel/s and 1,636.8 GTexel/s for the RTX 5090 D. The fill rate gap is roughly three to six times, depending on the metric.

FAQ

Q: Which GPU has better ray tracing performance?

A: The RTX 5090 D has 170 RT cores, while the Steam Machine GPU has 28 RT cores. The RTX 5090 D also scores 14,326 in 3DMark Steel Nomad DX12, a test that includes ray tracing elements. The Steam Machine GPU has no recorded ray tracing benchmark scores.

Q: Can the Steam Machine GPU fit in a standard desktop case?

A: The Steam Machine GPU measures 156 mm in length, 152 mm in height, and 162 mm in width. The RTX 5090 D measures 304 mm in length, 137 mm in height, and 48 mm in width. The Steam Machine GPU is shorter but wider and taller, suggesting a compact yet boxy form factor designed for console enclosures rather than standard PCIe slots.

Q: How much memory bandwidth does each GPU provide?

A: The Steam Machine GPU delivers 288.0 GB/s from 8 GB of GDDR6 on a 128 bit bus. The RTX 5090 D delivers 1.79 TB/s from 32 GB of GDDR7 on a 512 bit bus. The RTX 5090 D's bandwidth is approximately 6.2 times higher.

Q: What power supply is recommended for the RTX 5090 D?

A: The RTX 5090 D has a TDP of 575 W and a suggested PSU of 950 W. It requires a single 16 pin power connector. The Steam Machine GPU has a TDP of 110 W and no power connectors, meaning it draws power entirely from its slot or integrated design.

Q: Are the two GPUs in the same performance percentile?

A: No. The Steam Machine GPU is at the 50th percentile among all GPUs in the database. The RTX 5090 D is at the 92nd percentile. The RTX 5090 D also has an average benchmark score of 77,712, while the Steam Machine GPU has an average benchmark score of 0 due to missing data.

Q: Which GPU supports more display outputs?

A: The RTX 5090 D supports 1x HDMI 2.1b and 3x DisplayPort 2.1b, for a total of four outputs. The Steam Machine GPU supports 1x HDMI 2.1a and 1x DisplayPort 2.1, for a total of two outputs.

Where Each One Wins

The RTX 5090 D wins in every measurable performance category from the recorded data. Its FP32 throughput of 104.8 TFLOPS dwarfs the Steam Machine GPU's 17.56 TFLOPS. Its FP16 throughput matches its FP32 at 104.8 TFLOPS, while the Steam Machine GPU also scales 1:1 but only reaches 17.56 TFLOPS. Texture rate favors the RTX 5090 D at 1,636.8 GTexel/s versus 274.4 GTexel/s. Pixel rate favors the RTX 5090 D at 423.6 GPixel/s versus 156.8 GPixel/s. Memory capacity favors the RTX 5090 D at 32 GB versus 8 GB, and bandwidth favors it at 1.79 TB/s versus 288.0 GB/s. The RTX 5090 D also has tensor cores, which the Steam Machine GPU lacks entirely.

The Steam Machine GPU wins on efficiency and physical integration. Its 110 W TDP is less than one fifth of the RTX 5090 D's 575 W draw. It requires no external power connectors, while the RTX 5090 D needs a 16 pin connector and a 950 W PSU. The Steam Machine GPU's dimensions of 156 mm by 152 mm by 162 mm present a cube-like profile suited for console chassis, whereas the RTX 5090 D's 304 mm length demands a full tower case with ample clearance. The Steam Machine GPU's boost clock of 2450 MHz is actually 43 MHz higher than the RTX 5090 D's 2407 MHz boost, a rare point where the smaller chip outspecs the larger one. Production status shows both are active, and the RTX 5090 D lists a predecessor (GeForce 40) and successor (GeForce 60), while the Steam Machine GPU lists neither.

Specification Differences

The following fields differ between the two GPUs in the database. The Steam Machine GPU uses the Navi 33 chip with RDNA 3.0 architecture, while the RTX 5090 D uses the GB202 chip with Blackwell 2.0 architecture. The process node is 6 nm for AMD and 5 nm for NVIDIA. Transistor counts are 13,300 million versus 92,200 million. Die sizes are 204 mm² versus 750 mm². Transistor densities are 65.2M per mm² versus 122.9M per mm². Base clocks are 1720 MHz versus 2017 MHz. Boost clocks are 2450 MHz versus 2407 MHz. Game clock exists only for the Steam Machine GPU at 2250 MHz. Memory clocks are 2250 MHz (18 Gbps effective) versus 1750 MHz (28 Gbps effective). Memory sizes are 8 GB versus 32 GB. Memory types are GDDR6 versus GDDR7. Bus widths are 128 bit versus 512 bit. Bandwidths are 288.0 GB/s versus 1.79 TB/s. Shading units are 1,792 versus 21,760. TMUs are 112 versus 680. ROPs are 64 versus 176. RT cores are 28 versus 170. Tensor cores are null for AMD and 680 for NVIDIA. Pixel rates are 156.8 GPixel/s versus 423.6 GPixel/s. Texture rates are 274.4 GTexel/s versus 1,636.8 GTexel/s. FP32 is 17.56 TFLOPS versus 104.8 TFLOPS. FP16 is 17.56 TFLOPS (1:1) for both. TDP is 110 W versus 575 W. Slot width is null versus dual-slot. Power connectors are none versus 1x 16 pin. Suggested PSU is null versus 950 W. Bus interface is null versus PCIe 5.0 x16. Display outputs are 1x HDMI 2.1a and 1x DisplayPort 2.1 versus 1x HDMI 2.1b and 3x DisplayPort 2.1b. Dimensions are 156 mm by 152 mm by 162 mm versus 304 mm by 137 mm by 48 mm. Release dates are 2026-06-28 versus 2025-01-29. The RTX 5090 D has a launch MSRP of 2,299 USD, while the Steam Machine GPU has none. The RTX 5090 D has a predecessor (GeForce 40) and successor (GeForce 60); the Steam Machine GPU has neither. The RTX 5090 D has a series (GeForce 50-series) and generation (GeForce 50), while the Steam Machine GPU lists a generation of Console GPU (Valve) and no series.