AMD Radeon RX 7400 OEM vs AMD Steam Machine GPU Comparison

Head-to-Head Benchmarks

The database shows no recorded synthetic benchmark scores for either the AMD Radeon RX 7400 OEM or the AMD Steam Machine GPU. Both entries carry an average benchmark score of 0 and a percentile rank of 50 against all GPUs. With no head-to-head benchmark entries, direct performance comparisons must be derived from the recorded hardware specifications and clock behavior rather than measured frame rates or compute scores.

The most significant performance gap emerges from clock speeds. The Steam Machine GPU runs a base clock of 1720 MHz and a boost clock of 2450 MHz, with a game clock of 2250 MHz. The RX 7400 OEM, by contrast, lists a base clock of 330 MHz and a boost clock of 1100 MHz. That difference translates directly into compute throughput. The Steam Machine GPU delivers 17.56 TFLOPS of FP32 performance, while the RX 7400 OEM delivers 7.885 TFLOPS. In pure floating-point terms, the Steam Machine GPU offers roughly 2.2 times the raw compute of the RX 7400 OEM.

Pixel and texture throughput follow the same pattern. The Steam Machine GPU achieves 156.8 GPixel/s and 274.4 GTexel/s. The RX 7400 OEM achieves 70.40 GPixel/s and 123.2 GTexel/s. The Steam Machine GPU is ahead by a factor of about 2.2 in pixel rate and about 2.2 in texture rate. Since both GPUs share the same 64 ROPs and 112 TMUs, these differences come entirely from the higher clock speeds on the Steam Machine GPU.

Memory bandwidth also favors the Steam Machine GPU. It uses a 2250 MHz memory clock with 18 Gbps effective speed, yielding 288.0 GB/s across a 128-bit bus. The RX 7400 OEM runs memory at 1350 MHz with 10.8 Gbps effective speed, producing 172.8 GB/s. The Steam Machine GPU has about 1.7 times the memory bandwidth, which matters for texture-heavy scenes and higher resolutions where bandwidth becomes a limiting factor.

Neither GPU has any recorded wins in the head-to-head benchmark section, so there is no measured data showing one card beating the other in specific tests. The specification-derived numbers, however, consistently place the Steam Machine GPU ahead in every performance metric that can be computed from the recorded clocks and rates.

Architecture Differences

Both GPUs share the same underlying silicon. Each uses the Navi 33 chip, built on RDNA 3.0 architecture with the codename Hotpink Bonefish. Both are fabricated by TSMC on a 6 nm process, with 13,300 million transistors on a 204 mm² die, giving a transistor density of 65.2M per mm². The identical chip means the architecture itself is not the differentiator; the implementation and power envelope are.

Both GPUs have 1792 shading units, 112 TMUs, 64 ROPs, and 28 ray tracing cores. Neither has tensor cores listed. Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The API feature set is identical, so software compatibility should match across the two.

The differences in architecture implementation come down to clocks and power. The RX 7400 OEM is configured with a 55 W TDP and a single-slot cooler, using one 6-pin power connector and a suggested 250 W power supply. The Steam Machine GPU has a 110 W TDP, no power connectors listed, and no suggested PSU figure. The higher power envelope on the Steam Machine GPU is what allows the substantially higher base, boost, and game clocks.

Memory clocks differ as well. The RX 7400 OEM uses 1350 MHz memory with 10.8 Gbps effective, while the Steam Machine GPU uses 2250 MHz memory with 18 Gbps effective. Both use 8 GB of GDDR6 on a 128-bit bus, but the Steam Machine GPU runs the memory significantly faster.

The RX 7400 OEM is documented as part of the Radeon RX 7000 series, in the Navi III generation, with a release date in August 2025. The Steam Machine GPU is listed as a Console GPU for Valve, with a release date in June 2026. It has an Active production status, while the RX 7400 OEM has no production status recorded. The RX 7400 OEM has a predecessor listed as Navi II and a successor as Navi IV; the Steam Machine GPU has neither.

Physical dimensions differ. The RX 7400 OEM is 167 mm long and 6.6 inches, single-slot. The Steam Machine GPU is 156 mm long (6.1 inches), 152 mm tall (6 inches), and 162 mm wide (6.4 inches), a more compact and box-like form factor. The RX 7400 OEM connects via PCIe 4.0 x8, while the Steam Machine GPU has no bus interface listed.

Display outputs also differ. The RX 7400 OEM has 1x HDMI 2.1a and 3x DisplayPort 2.1. The Steam Machine GPU has 1x HDMI 2.1a and 1x DisplayPort 2.1. Fewer display outputs on the Steam Machine GPU reflect its console-oriented role.

The Verdict

The recorded data indicates the AMD Steam Machine GPU is the stronger performer in every measurable hardware specification. Its FP32 throughput of 17.56 TFLOPS is more than double the RX 7400 OEM's 7.885 TFLOPS. Its memory bandwidth of 288.0 GB/s exceeds the RX 7400 OEM's 172.8 GB/s by a wide margin. Pixel rate and texture rate are both roughly 2.2 times higher. For anyone choosing strictly on performance potential, the Steam Machine GPU is the clear pick.

The RX 7400 OEM has its own advantages, but they are not performance advantages. It draws 55 W versus 110 W, which means lower power consumption and simpler cooling requirements. It is a single-slot card, which fits in more compact desktop builds. It offers three DisplayPort 2.1 outputs plus one HDMI 2.1a, giving more multi-display flexibility than the Steam Machine GPU's single HDMI and single DisplayPort. It also has a documented PCIe 4.0 x8 interface, while the Steam Machine GPU has no bus interface listed.

The RX 7400 OEM appears to be a low-power OEM-oriented card, likely for prebuilt systems where efficiency and size matter more than peak performance. The Steam Machine GPU is a console-class part with a much higher power budget and no external power connectors, suggesting it is designed to be integrated into a fixed console enclosure with its own cooling and power delivery.

For gaming workloads, the Steam Machine GPU's higher clocks and bandwidth give it a decisive edge. For a low-profile desktop card where power draw and physical footprint are the priorities, the RX 7400 OEM is the more practical choice. The data does not show any benchmark results, so neither card has proven superiority in actual tests, but the specification deltas are large enough to make the performance hierarchy clear.

FAQ

Q: Which GPU has higher raw compute performance?

A: The AMD Steam Machine GPU delivers 17.56 TFLOPS of FP32 performance, while the AMD Radeon RX 7400 OEM delivers 7.885 TFLOPS. The Steam Machine GPU has more than double the raw floating-point throughput.

Q: Do the two GPUs use the same chip?

A: Yes. Both use the Navi 33 chip with RDNA 3.0 architecture, fabricated on a 6 nm TSMC process with 13,300 million transistors and a 204 mm² die size.

Q: How does memory bandwidth compare?

A: The Steam Machine GPU has 288.0 GB/s of memory bandwidth, while the RX 7400 OEM has 172.8 GB/s. Both use 8 GB of GDDR6 on a 128-bit bus, but the Steam Machine GPU runs its memory at 2250 MHz with 18 Gbps effective speed versus 1350 MHz with 10.8 Gbps effective on the RX 7400 OEM.

Q: Which card consumes less power?

A: The RX 7400 OEM has a 55 W TDP, compared to 110 W for the Steam Machine GPU. The RX 7400 OEM also lists a suggested 250 W power supply, while the Steam Machine GPU has no suggested PSU figure and no power connectors.

Q: Do both GPUs support the same graphics APIs?

A: Yes. Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The API feature sets are identical.

Q: Which GPU has more display outputs?

A: The RX 7400 OEM has 1x HDMI 2.1a and 3x DisplayPort 2.1. The Steam Machine GPU has 1x HDMI 2.1a and 1x DisplayPort 2.1. The RX 7400 OEM supports more simultaneous displays.

Where Each One Wins

The AMD Steam Machine GPU wins in every raw performance category recorded in the database. Its FP32 compute of 17.56 TFLOPS is 2.2 times the RX 7400 OEM's 7.885 TFLOPS. Its pixel rate of 156.8 GPixel/s is 2.2 times the 70.40 GPixel/s of the RX 7400 OEM. Its texture rate of 274.4 GTexel/s is 2.2 times the 123.2 GTexel/s. Its memory bandwidth of 288.0 GB/s is 1.7 times the 172.8 GB/s. Its boost clock of 2450 MHz is more than double the RX 7400 OEM's 1100 MHz. For gaming, rendering, or any compute-heavy task, the Steam Machine GPU is the stronger part.

The AMD Radeon RX 7400 OEM wins in power efficiency and physical integration. It draws 55 W against 110 W, making it far easier to cool in a small chassis. It is single-slot, while the Steam Machine GPU's dimensions (156 mm length, 152 mm height, 162 mm width) suggest a larger, boxier console-style module. The RX 7400 OEM has three DisplayPort 2.1 outputs and one HDMI 2.1a, compared to one of each on the Steam Machine GPU. The RX 7400 OEM also has a documented PCIe 4.0 x8 bus interface, whereas the Steam Machine GPU has no bus interface listed. For a multi-monitor workstation or a low-power OEM build, the RX 7400 OEM is the better fit.

Release timing also separates the two. The RX 7400 OEM launched in August 2025, while the Steam Machine GPU is dated June 2026. The Steam Machine GPU is marked as Active in production; the RX 7400 OEM has no production status recorded. Neither card has a launch MSRP in the database, so no pricing comparison is possible from the recorded data.

Specification Differences

The two GPUs differ in the following recorded fields:

• Base clock: RX 7400 OEM 330 MHz, Steam Machine GPU 1720 MHz
• Boost clock: RX 7400 OEM 1100 MHz, Steam Machine GPU 2450 MHz
• Game clock: RX 7400 OEM not listed, Steam Machine GPU 2250 MHz
• Memory clock: RX 7400 OEM 1350 MHz (10.8 Gbps effective), Steam Machine GPU 2250 MHz (18 Gbps effective)
• Memory bandwidth: RX 7400 OEM 172.8 GB/s, Steam Machine GPU 288.0 GB/s
• Pixel rate: RX 7400 OEM 70.40 GPixel/s, Steam Machine GPU 156.8 GPixel/s
• Texture rate: RX 7400 OEM 123.2 GTexel/s, Steam Machine GPU 274.4 GTexel/s
• FP32 performance: RX 7400 OEM 7.885 TFLOPS, Steam Machine GPU 17.56 TFLOPS
• FP16 performance: RX 7400 OEM 7.885 TFLOPS (1:1), Steam Machine GPU 17.56 TFLOPS (1:1)
• TDP: RX 7400 OEM 55 W, Steam Machine GPU 110 W
• Slot width: RX 7400 OEM single-slot, Steam Machine GPU not listed
• Power connectors: RX 7400 OEM 1x 6-pin, Steam Machine GPU none
• Suggested PSU: RX 7400 OEM 250 W, Steam Machine GPU not listed
• Bus interface: RX 7400 OEM PCIe 4.0 x8, Steam Machine GPU not listed
• Display outputs: RX 7400 OEM 1x HDMI 2.1a, 3x DisplayPort 2.1; Steam Machine GPU 1x HDMI 2.1a, 1x DisplayPort 2.1
• Dimensions: RX 7400 OEM 167 mm length (6.6 inches); Steam Machine GPU 156 mm length (6.1 inches), 152 mm height (6 inches), 162 mm width (6.4 inches)
• Production status: RX 7400 OEM not listed, Steam Machine GPU Active
• Release date: RX 7400 OEM August 2025, Steam Machine GPU June 2026
• Series: RX 7400 OEM Radeon RX 7000 series, Steam Machine GPU not listed
• Generation: RX 7400 OEM Navi III (RX 7000), Steam Machine GPU Console GPU (Valve)
• Predecessor: RX 7400 OEM Navi II, Steam Machine GPU not listed
• Successor: RX 7400 OEM Navi IV, Steam Machine GPU not listed

Identical fields include the Navi 33 chip, RDNA 3.0 architecture, Hotpink Bonefish codename, 6 nm TSMC process, 13,300 million transistors, 204 mm² die size, 65.2M per mm² transistor density, 8 GB GDDR6 memory, 128-bit bus, 1792 shading units, 112 TMUs, 64 ROPs, 28 ray tracing cores, and the same DirectX, OpenGL, and Vulkan API support.