AMD Radeon RX 7400 vs AMD Steam Machine GPU Comparison

Head-to-Head Benchmarks

The AMD Radeon RX 7400 and the AMD Steam Machine GPU share the same underlying silicon, the Navi 33 chip, but the recorded benchmark data separates them sharply. The RX 7400 has a full suite of measured scores across multiple DirectX tests, while the Steam Machine GPU currently has no recorded benchmark entries in the database, giving it an average benchmark score of 0. This absence of data means the head-to-head comparison rests entirely on the RX 7400's measured results and the architectural specifications of both cards.

The RX 7400 posts a 3DMark Steel Nomad DX12 score of 1103, which places it in the 17th percentile of all GPUs. Its PassMark G3D score reaches 11897, while the PassMark G2D score sits at 1209. In legacy DirectX tests, the card scores 176 in DirectX 9, 97 in DirectX 11, 59 in DirectX 10, and 44 in DirectX 12 via PassMark. Compute performance registers at 5152 in the PassMark GPU Compute test. The average benchmark score across all tests is 2467. The Steam Machine GPU, with no recorded scores, cannot be directly compared on any of these metrics. The data shows a complete lack of measurement for the Steam Machine GPU, so any performance delta remains undefined until benchmark results are recorded.

The nearest rivals to the RX 7400, based on average score, include the AMD Radeon 8040S at 2440 (1.1% ahead of the RX 7400), the NVIDIA GeForce 710M at 2433 (1.4% ahead), the Intel HD Graphics 610 at 2425 (1.8% ahead), and the NVIDIA GeForce GT 710M at 2422 (1.9% ahead). These deltas are small, indicating the RX 7400's average score of 2467 sits within a tight cluster of low-end GPUs. The Steam Machine GPU has no nearest rivals listed, reinforcing its status as an unmeasured product in the database.

Architecture Differences

Both cards use the Navi 33 chip built on RDNA 3.0 architecture, with the codename Hotpink Bonefish. The process node is 6 nm at TSMC, and both integrate 13,300 million transistors on a 204 mm² die, yielding a transistor density of 65.2M per mm². The RX 7400 belongs to the Radeon RX 7000 series under the Navi III generation (RX 7000), whereas the Steam Machine GPU is classified as a Console GPU (Valve) generation. Both share the same DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4 API support.

The clock speeds differ significantly. The RX 7400 has a base clock of 1452 MHz, a boost clock of 2300 MHz, and a game clock of 2200 MHz. The Steam Machine GPU runs higher: 1720 MHz base, 2450 MHz boost, and 2250 MHz game clock. Memory clocks are identical at 2250 MHz with 18 Gbps effective data rate. The Steam Machine GPU's higher clocks translate into higher pixel and texture rates: 156.8 GPixel/s pixel rate and 274.4 GTexel/s texture rate, versus the RX 7400's 147.2 GPixel/s and 257.6 GTexel/s. Floating-point performance follows the same pattern: the Steam Machine GPU delivers 17.56 TFLOPS FP32 and 17.56 TFLOPS FP16 (1:1), while the RX 7400 delivers 16.49 TFLOPS FP32 and 32.97 TFLOPS FP16 (2:1). The FP16 ratio difference is notable: the RX 7400 uses a 2:1 ratio, doubling its FP16 throughput, while the Steam Machine GPU runs FP16 at a 1:1 ratio, matching its FP32 output.

Power characteristics diverge sharply. The RX 7400 has a TDP of 43 W, a dual-slot design, a single 6-pin power connector, and a suggested PSU of 200 W. The Steam Machine GPU draws a 110 W TDP, has no power connectors listed, and no suggested PSU. The Steam Machine GPU also lacks a listed bus interface, while the RX 7400 uses PCIe 4.0 x8. Display outputs differ as well: the RX 7400 offers 1x HDMI 2.1a and 3x DisplayPort 2.1, while the Steam Machine GPU provides 1x HDMI 2.1a and 1x DisplayPort 2.1.

Where Each One Wins

The RX 7400 wins on measured performance data availability. It has eight recorded benchmark scores covering 3DMark and PassMark suites, giving it a quantified position in the database. Its average benchmark score of 2467 and 17th percentile ranking are concrete reference points. The Steam Machine GPU has no recorded benchmarks, so it cannot claim any measured performance win. Its percentile vs all GPUs is listed at 50, but with an average score of 0, this percentile lacks supporting measurement data.

The Steam Machine GPU wins on raw specification ceilings. Its boost clock of 2450 MHz exceeds the RX 7400's 2300 MHz, and its base clock of 1720 MHz is higher than 1452 MHz. The game clock of 2250 MHz also edges out the RX 7400's 2200 MHz. These higher clocks yield higher pixel rate (156.8 GPixel/s vs 147.2 GPixel/s), texture rate (274.4 GTexel/s vs 257.6 GTexel/s), and FP32 throughput (17.56 TFLOPS vs 16.49 TFLOPS). The Steam Machine GPU also has a higher TDP at 110 W versus 43 W, which aligns with its higher clock targets. The RX 7400 counters with a 2:1 FP16 ratio, doubling its FP16 throughput to 32.97 TFLOPS, whereas the Steam Machine GPU's FP16 output matches its FP32 at 17.56 TFLOPS.

The production status differs: the Steam Machine GPU is marked as Active, while the RX 7400 has no production status listed. Release dates also differ, with the RX 7400 dated 2025-08-07 and the Steam Machine GPU dated 2026-06-28. The Steam Machine GPU has physical dimensions recorded at 156 mm length, 152 mm height, and 162 mm width, while the RX 7400 lacks dimension data. The RX 7400 has a predecessor (Navi II) and successor (Navi IV) listed, while the Steam Machine GPU has neither.

Specification Differences

The two cards share identical core counts: 1792 shading units, 112 TMUs, 64 ROPs, and 28 RT cores. Memory is also identical: 8 GB GDDR6 on a 128-bit bus with 288.0 GB/s bandwidth. The differences appear in clocks, power, physical design, and outputs.

| Specification | RX 7400 | Steam Machine GPU |

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

| Base clock | 1452 MHz | 1720 MHz |

| Boost clock | 2300 MHz | 2450 MHz |

| Game clock | 2200 MHz | 2250 MHz |

| Pixel rate | 147.2 GPixel/s | 156.8 GPixel/s |

| Texture rate | 257.6 GTexel/s | 274.4 GTexel/s |

| FP32 | 16.49 TFLOPS | 17.56 TFLOPS |

| FP16 | 32.97 TFLOPS (2:1) | 17.56 TFLOPS (1:1) |

| TDP | 43 W | 110 W |

| Slot width | Dual-slot | Not listed |

| Power connectors | 1x 6-pin | None |

| Suggested PSU | 200 W | Not listed |

| Bus interface | PCIe 4.0 x8 | Not listed |

| Display outputs | 1x HDMI 2.1a, 3x DisplayPort 2.1 | 1x HDMI 2.1a, 1x DisplayPort 2.1 |

| Dimensions | Not listed | 156 mm x 152 mm x 162 mm |

| Production status | Not listed | Active |

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

The Steam Machine GPU's higher clocks and TDP make it the more aggressive configuration on paper. The RX 7400's dual-slot cooler and 6-pin connector suggest a discrete card design, while the Steam Machine GPU's lack of power connectors points to an integrated console layout. The absence of a bus interface for the Steam Machine GPU further supports this distinction.

FAQ

Q: Which GPU has a higher boost clock?

A: The AMD Steam Machine GPU boosts to 2450 MHz, while the AMD Radeon RX 7400 boosts to 2300 MHz.

Q: Do both cards use the same amount of memory?

A: Yes, both have 8 GB of GDDR6 memory on a 128-bit bus with 288.0 GB/s bandwidth.

Q: What is the FP16 performance difference?

A: The RX 7400 delivers 32.97 TFLOPS FP16 using a 2:1 ratio, while the Steam Machine GPU delivers 17.56 TFLOPS FP16 at a 1:1 ratio, matching its FP32 output.

Q: Which card has a higher TDP?

A: The Steam Machine GPU has a TDP of 110 W, compared to the RX 7400's 43 W.

Q: Are there any recorded benchmarks for the Steam Machine GPU?

A: No, the database lists no benchmark scores for the Steam Machine GPU, giving it an average benchmark score of 0. The RX 7400 has eight recorded scores, including a 3DMark Steel Nomad DX12 score of 1103 and a PassMark G3D score of 11897.

Q: How many display outputs does each card support?

A: The RX 7400 supports 1x HDMI 2.1a and 3x DisplayPort 2.1. The Steam Machine GPU supports 1x HDMI 2.1a and 1x DisplayPort 2.1.