AMD Radeon PRO W7800 vs AMD Steam Machine GPU Comparison

Where Each One Wins

The AMD Radeon PRO W7800 is the clear performance leader in this pairing. The recorded data shows the W7800 achieving an average benchmark score of 164,894, placing it in the 97th percentile of all GPUs in the database. The AMD Steam Machine GPU, by contrast, has no recorded benchmark scores and sits at the 50th percentile with an average score of zero. Every measurable compute task favors the W7800.

The Steam Machine GPU is a console-oriented part with a 110 W thermal envelope, designed for a fixed hardware platform rather than general-purpose workstation use. Its strengths lie in its compact physical footprint and low power draw, not in raw throughput. The W7800 is a workstation card with 32 GB of memory, 45.25 TFLOPS of FP32 performance, and a 260 W power target. For any task involving large datasets, high-resolution rendering, or compute-heavy workloads, the W7800 is the only viable option between the two.

The W7800 also wins on software ecosystem compatibility. Both cards support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, so API coverage is identical. However, the W7800 delivers 4480 shading units, 280 texture mapping units, and 128 raster operation pipelines, versus 1792 shading units, 112 TMUs, and 64 ROPs on the Steam Machine GPU. That is a 2.5x advantage in shading units and a 2x advantage in ROPs. For viewport rendering, texture-heavy workloads, or pixel-rate-bound tasks, the W7800 has the hardware resources to pull far ahead.

Architecture Differences

Both GPUs use the RDNA 3.0 architecture from AMD, but they are built on different process nodes and use different chips. The W7800 uses the Navi 31 chip, codenamed Plum Bonito, fabricated on TSMC's 5 nm process. The Steam Machine GPU uses the Navi 33 chip, codenamed Hotpink Bonefish, fabricated on TSMC's 6 nm process. This node difference is significant: the 5 nm process allows for a much larger and denser chip.

The W7800's die measures 529 mm² and contains 57,700 million transistors, yielding a transistor density of 109.1 million per mm². The Steam Machine GPU's die is 204 mm² with 13,300 million transistors, for a density of 65.2 million per mm². The W7800 has over 4.3 times the transistor count and more than 2.5 times the die area. This scale difference directly explains the performance gap.

Memory architecture also differs sharply. The W7800 has 32 GB of GDDR6 memory on a 256-bit bus, delivering 576.0 GB/s of bandwidth. The Steam Machine GPU has 8 GB of GDDR6 memory on a 128-bit bus, delivering 288.0 GB/s. That is a 4x capacity advantage and a 2x bandwidth advantage for the W7800. The Steam Machine GPU's memory clock is the same at 2250 MHz (18 Gbps effective), but the narrower bus halves the available bandwidth.

Ray tracing hardware follows the same pattern. The W7800 has 70 ray tracing cores; the Steam Machine GPU has 28. The W7800 also has a higher boost clock at 2525 MHz versus 2450 MHz on the Steam Machine GPU, along with a higher base clock of 1895 MHz versus 1720 MHz. The Steam Machine GPU does list a game clock of 2250 MHz, a figure not provided for the W7800, but the W7800's base clock already exceeds that number.

Physical design and power delivery are also different. The W7800 is a dual-slot card measuring 280 mm in length, 110 mm in height, and 40 mm in width, requiring two 8-pin power connectors and a 600 W suggested PSU. The Steam Machine GPU measures 156 mm by 152 mm by 162 mm, uses no external power connectors, and has no suggested PSU rating, indicating it draws all power from the host board. The W7800 is a full-size workstation card; the Steam Machine GPU is a compact console module.

Head-to-Head Benchmarks

Direct head-to-head benchmark results are not recorded in the database for this pair. However, the available individual benchmark data for the W7800 provides a basis for comparison. The W7800 scores 154,366 in Geekbench OpenCL and 175,422 in Geekbench Vulkan. The Steam Machine GPU has no recorded scores in either test, so any numerical comparison must rely on the W7800's absolute numbers and its position relative to other GPUs.

The W7800's average benchmark score of 164,894 places it near the top of the database. Its nearest rivals include the NVIDIA RTX A5500 with an average score of 165,217, a delta of -0.2 percent, meaning the W7800 trails that card by a negligible margin. The NVIDIA RTX 4500 Ada Generation scores 166,094, putting the W7800 0.7 percent behind. Against the AMD Radeon Pro W6900X, which scores 168,574, the W7800 is 2.2 percent behind. The only rival it beats in this group is the NVIDIA A100 PCIe 40 GB, which scores 162,504; the W7800 leads that card by 1.5 percent.

These margins show that the W7800 sits in a competitive band with high-end workstation GPUs, trading places with them within a few percentage points. The Steam Machine GPU, with no recorded scores, cannot be placed in this hierarchy. The 50th percentile ranking for the Steam Machine GPU indicates a mid-pack position, but without benchmark numbers, no precise performance statement can be made.

The W7800's FP32 throughput of 45.25 TFLOPS is more than 2.5 times the Steam Machine GPU's 17.56 TFLOPS. FP16 performance tells a different story: the W7800 reaches 90.50 TFLOPS using a 2:1 rate, while the Steam Machine GPU delivers 17.56 TFLOPS at a 1:1 rate. The W7800's FP16 advantage is still substantial at over 5x, but the Steam Machine GPU's 1:1 FP16 ratio means it does not gain any speedup when switching precision. For workloads that rely on FP16, the W7800 offers far more headroom.

Pixel and texture rates follow the expected pattern. The W7800 produces 323.2 GPixel/s and 707.0 GTexel/s. The Steam Machine GPU produces 156.8 GPixel/s and 274.4 GTexel/s. In pixel throughput, the W7800 is roughly 2.06x faster; in texture throughput, it is roughly 2.58x faster. These ratios align with the differences in ROP and TMU counts.

FAQ

Q: Which GPU has more memory bandwidth?

A: The AMD Radeon PRO W7800. It delivers 576.0 GB/s over a 256-bit bus, while the AMD Steam Machine GPU delivers 288.0 GB/s over a 128-bit bus.

Q: Do both cards support the same DirectX version?

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

Q: What is the power draw difference?

A: The W7800 has a 260 W TDP and requires two 8-pin power connectors with a 600 W suggested PSU. The Steam Machine GPU has a 110 W TDP and uses no external power connectors.

Q: Which GPU has more ray tracing cores?

A: The W7800 has 70 ray tracing cores. The Steam Machine GPU has 28.

Q: Is the Steam Machine GPU smaller?

A: Yes. It measures 156 mm by 152 mm by 162 mm. The W7800 measures 280 mm by 110 mm by 40 mm and is dual-slot.

Q: What process node does each use?

A: The W7800 uses TSMC's 5 nm process. The Steam Machine GPU uses TSMC's 6 nm process.

The Verdict

The data indicates a complete performance hierarchy. The AMD Radeon PRO W7800 is a workstation-class GPU with 32 GB of memory, 45.25 TFLOPS of FP32 compute, and a 97th percentile ranking. It is designed for professional workloads where memory capacity and compute throughput are critical. The AMD Steam Machine GPU is a console part with 8 GB of memory, 17.56 TFLOPS of FP32 compute, and no recorded benchmark scores. It targets a fixed hardware platform with a 110 W power budget.

For anyone building a workstation or running compute-heavy applications, the W7800 is the obvious selection. Its nearest rivals in the database are all high-end workstation cards, and it trades within 2.2 percent of them. The Steam Machine GPU has no comparable benchmark presence, so it cannot be recommended for any task that requires measurable performance.

For a Steam Machine or similar console form factor, the Steam Machine GPU makes sense as a low-power, compact module. Its 6 nm process, 110 W TDP, and small footprint fit a console design. But its 8 GB memory and 128-bit bus limit it to 1080p-class gaming and lightweight workloads. The W7800 costs vastly more in power and physical space, but the recorded data shows it delivers over 2.5 times the FP32 performance, 4 times the memory capacity, and 2 times the memory bandwidth.

The verdict is straightforward: the W7800 for any performance-sensitive task, the Steam Machine GPU for a specific low-power console implementation. There is no scenario in the recorded data where the Steam Machine GPU outperforms the W7800.

Specification Differences

| Specification | AMD Radeon PRO W7800 | AMD Steam Machine GPU |

| --- | --- | --- |

| Chip | Navi 31 | Navi 33 |

| Codename | Plum Bonito | Hotpink Bonefish |

| Process Node | 5 nm | 6 nm |

| Transistors | 57,700 million | 13,300 million |

| Die Size | 529 mm² | 204 mm² |

| Transistor Density | 109.1M / mm² | 65.2M / mm² |

| Base Clock | 1895 MHz | 1720 MHz |

| Boost Clock | 2525 MHz | 2450 MHz |

| Game Clock | Not listed | 2250 MHz |

| Memory Size | 32 GB | 8 GB |

| Memory Type | GDDR6 | GDDR6 |

| Memory Bus Width | 256 bit | 128 bit |

| Memory Bandwidth | 576.0 GB/s | 288.0 GB/s |

| Shading Units | 4480 | 1792 |

| TMUs | 280 | 112 |

| ROPs | 128 | 64 |

| Ray Tracing Cores | 70 | 28 |

| Pixel Rate | 323.2 GPixel/s | 156.8 GPixel/s |

| Texture Rate | 707.0 GTexel/s | 274.4 GTexel/s |

| FP32 Performance | 45.25 TFLOPS | 17.56 TFLOPS |

| FP16 Performance | 90.50 TFLOPS (2:1) | 17.56 TFLOPS (1:1) |

| TDP | 260 W | 110 W |

| Power Connectors | 2x 8-pin | None |

| Suggested PSU | 600 W | Not listed |

| Bus Interface | PCIe 4.0 x16 | Not listed |

| Display Outputs | 3x DisplayPort 2.1, 1x mini-DisplayPort 2.1 | 1x HDMI 2.1a, 1x DisplayPort 2.1 |

| Dimensions | 280 mm x 110 mm x 40 mm | 156 mm x 152 mm x 162 mm |

| Slot Width | Dual-slot | Not listed |

| Release Date | 2023-04-12 | 2026-06-28 |

| Launch MSRP | 2,499 USD | Not listed |

The W7800 is larger, faster, and more power-hungry in every measurable specification. The Steam Machine GPU is smaller, cooler, and designed for integrated console use. The release dates differ by over three years, with the Steam Machine GPU slated for a later launch. The W7800 has a stated launch MSRP of 2,499 USD; no launch MSRP is recorded for the Steam Machine GPU.