AMD Steam Machine GPU vs NVIDIA GeForce RTX 5070 Mobile Comparison

Head-to-Head Benchmarks

The recorded data does not include any direct head-to-head benchmark comparisons between the AMD Steam Machine GPU and the NVIDIA GeForce RTX 5070 Mobile. The database contains no shared test results for both parts, and the AMD unit has no benchmark entries at all. Its average benchmark score is recorded as 0, while the NVIDIA part shows a substantial average score of 29928 points.

What the data does show is where the NVIDIA part stands relative to other hardware. The GeForce RTX 5070 Mobile posts an average score that is 0.1% below the NVIDIA GeForce RTX 3070 Ti, which recorded 29945 points. It comes in 0.5% above the NVIDIA GeForce RTX 2080 Ti, which scored 29783, and it trails the AMD Radeon RX 6800 by 0.6% (30095 points) and the AMD Radeon RX 6700 by 1.7% (30433 points). These deltas are small, placing the mobile part in a tight cluster with those desktop and older mobile parts.

The NVIDIA GPU occupies the 75th percentile among all GPUs in the database. The AMD Steam Machine GPU sits at the 50th percentile, with no benchmark score to support its position. This means the percentile for the AMD part is based on specifications or other recorded factors, not measured performance. The practical takeaway is that the NVIDIA part has verified performance data, while the AMD part does not.

The individual benchmark results for the NVIDIA part show its strongest showing in compute workloads. The OpenCL score is 122238, and the Vulkan score is 116960. The Passmark G3D result is 20355, with GPU compute at 8279. The DirectX 9 score of 214 is the highest among the legacy DirectX tests, followed by DirectX 11 at 192, DirectX 10 at 129, and DirectX 12 at 93. The G2D score is 896.

Without any head-to-head data, the comparison between these two GPUs relies entirely on architectural and specification differences rather than measured performance deltas. The database records zero wins for either part in direct competition.

Architecture Differences

The two GPUs come from different manufacturers and use fundamentally different architectures. The AMD part uses RDNA 3.0, built on a chip called Navi 33 with the codename Hotpink Bonefish. It belongs to the Console GPU (Valve) generation. The NVIDIA part uses Blackwell 2.0, built on the GB206 chip, and belongs to the GeForce 50 Mobile generation.

The manufacturing process differs. AMD uses a 6 nm node from TSMC, while NVIDIA uses a 5 nm node, also from TSMC. The transistor counts reflect the different designs. The NVIDIA die contains 21,900 million transistors on a 181 mm² die, giving a density of 121.0M per mm². The AMD die contains 13,300 million transistors on a larger 204 mm² die, resulting in a density of 65.2M per mm². This means the NVIDIA chip packs nearly double the transistor density into a smaller area.

The memory subsystems are different in type and bandwidth. Both have 8 GB capacity and a 128 bit bus width. The AMD part uses GDDR6 at 18 Gbps effective, producing 288.0 GB/s of bandwidth. The NVIDIA part uses GDDR7 at 24 Gbps effective, producing 384.0 GB/s. The NVIDIA memory operates at a higher effective speed and delivers 33% more bandwidth, though the exact percentage is not stated in the database.

The shader configurations differ significantly. The AMD part has 1792 shading units, 112 texture mapping units, 64 render output units, and 28 ray tracing cores. It has no tensor cores. The NVIDIA part has 4608 shading units, 144 TMUs, 48 ROPs, 36 RT cores, and 144 tensor cores. The NVIDIA part has 2.6 times the shading units and 1.3 times the TMUs, but fewer ROPs. The presence of tensor cores in the NVIDIA part enables AI-accelerated workloads, a feature absent from the AMD specification.

Clock speeds are recorded differently. The AMD part has a base clock of 1720 MHz, a boost clock of 2450 MHz, and a game clock of 2250 MHz. The NVIDIA part has a base clock of 907 MHz and a boost clock of 1425 MHz, with no game clock recorded. Despite the lower clocks, the NVIDIA part delivers a higher pixel rate of 68.40 GPixel/s versus 156.8 GPixel/s for AMD, which is counterintuitive. The AMD part has a higher texture rate at 274.4 GTexel/s compared to 205.2 GTexel/s for NVIDIA.

The FP32 compute figures show AMD at 17.56 TFLOPS and NVIDIA at 13.13 TFLOPS, both with 1:1 FP16 ratios. The AMD part has a higher raw FP32 throughput, but the NVIDIA part has tensor cores that the AMD part lacks.

The power envelopes differ substantially. The AMD part is rated at 110 W TDP, while the NVIDIA part is rated at 50 W TDP. Both use no power connectors, suggesting the AMD part draws power through the slot or motherboard, and the NVIDIA part is an integrated graphics package, indicated by its IGP slot width. The NVIDIA part connects via PCIe 5.0 x16, while the AMD part has no bus interface recorded.

Display outputs also differ. The AMD part offers 1x HDMI 2.1a and 1x DisplayPort 2.1. The NVIDIA part is listed as Portable Device Dependent, meaning its outputs vary by the laptop or device it is installed in.

FAQ

Q: Which GPU has more shading units?

A: The NVIDIA GeForce RTX 5070 Mobile has 4608 shading units, while the AMD Steam Machine GPU has 1792, a difference of 2.6 times in favor of NVIDIA.

Q: What is the power consumption difference between the two?

A: The AMD part is rated at 110 W TDP, and the NVIDIA part is rated at 50 W TDP, meaning the NVIDIA part uses less than half the power budget.

Q: Which GPU has higher memory bandwidth?

A: The NVIDIA part uses GDDR7 memory at 24 Gbps effective with 384.0 GB/s bandwidth. The AMD part uses GDDR6 at 18 Gbps effective with 288.0 GB/s bandwidth.

Q: Does either GPU have tensor cores?

A: Only the NVIDIA GeForce RTX 5070 Mobile has tensor cores, with 144 of them. The AMD Steam Machine GPU has no tensor cores listed.

Q: What is the release date for each GPU?

A: The NVIDIA GeForce RTX 5070 Mobile was released on 2025-04-14, while the AMD Steam Machine GPU has a release date of 2026-06-28.

Q: Which GPU has a higher FP32 compute throughput?

A: The AMD Steam Machine GPU delivers 17.56 TFLOPS FP32, while the NVIDIA GeForce RTX 5070 Mobile delivers 13.13 TFLOPS FP32.

Specification Differences

The two parts differ in nearly every recorded specification field.

• Architecture: RDNA 3.0 for AMD, Blackwell 2.0 for NVIDIA.
• Process node: 6 nm for AMD, 5 nm for NVIDIA.
• Transistors: 13,300 million for AMD, 21,900 million for NVIDIA.
• Die size: 204 mm² for AMD, 181 mm² for NVIDIA.
• Transistor density: 65.2M / mm² for AMD, 121.0M / mm² for NVIDIA.
• Base clock: 1720 MHz for AMD, 907 MHz for NVIDIA.
• Boost clock: 2450 MHz for AMD, 1425 MHz for NVIDIA.
• Game clock: 2250 MHz for AMD, none recorded for NVIDIA.
• Memory clock: 2250 MHz (18 Gbps effective) for AMD, 1500 MHz (24 Gbps effective) for NVIDIA.
• Memory type: GDDR6 for AMD, GDDR7 for NVIDIA.
• Bandwidth: 288.0 GB/s for AMD, 384.0 GB/s for NVIDIA.
• Shading units: 1792 for AMD, 4608 for NVIDIA.
• TMUs: 112 for AMD, 144 for NVIDIA.
• ROPs: 64 for AMD, 48 for NVIDIA.
• RT cores: 28 for AMD, 36 for NVIDIA.
• Tensor cores: None for AMD, 144 for NVIDIA.
• Pixel rate: 156.8 GPixel/s for AMD, 68.40 GPixel/s for NVIDIA.
• Texture rate: 274.4 GTexel/s for AMD, 205.2 GTexel/s for NVIDIA.
• FP32: 17.56 TFLOPS for AMD, 13.13 TFLOPS for NVIDIA.
• FP16: 17.56 TFLOPS (1:1) for AMD, 13.13 TFLOPS (1:1) for NVIDIA.
• TDP: 110 W for AMD, 50 W for NVIDIA.
• Slot width: None recorded for AMD, IGP for NVIDIA.
• Bus interface: None recorded for AMD, PCIe 5.0 x16 for NVIDIA.
• Display outputs: 1x HDMI 2.1a, 1x DisplayPort 2.1 for AMD; Portable Device Dependent for NVIDIA.
• Release date: 2026-06-28 for AMD, 2025-04-14 for NVIDIA.
• Predecessor: None for AMD, GeForce 40 Mobile for NVIDIA.
• Dimensions: 156 mm length, 152 mm height, 162 mm width for AMD; none recorded for NVIDIA.

The two parts share the same DirectX version (12 Ultimate, 12_2), OpenGL 4.6, Vulkan 1.4, and memory capacity and bus width (8 GB, 128 bit).

The Verdict

The data supports a clear split in intended use cases. The NVIDIA GeForce RTX 5070 Mobile is the only part with measured performance data. Its average benchmark score of 29928 places it at the 75th percentile, and its nearest rivals are all within 1.7% of its score, indicating a stable, competitive performance level. The presence of tensor cores and a lower 50 W TDP makes it suited for mobile devices where power efficiency and AI workloads matter.

The AMD Steam Machine GPU has no benchmark scores recorded and sits at the 50th percentile. Its higher FP32 throughput (17.56 TFLOPS), higher pixel rate (156.8 GPixel/s), and higher texture rate (274.4 GTexel/s) suggest it is designed for raw rasterization throughput in a console-style fixed platform. The 110 W TDP and physical dimensions of 156 mm by 152 mm by 162 mm indicate a larger, self-contained unit.

For users who require verified performance and AI acceleration, the NVIDIA part is the only choice supported by benchmark data. For users who prioritize raw FP32 and pixel throughput in a console context, the AMD part has specification advantages, but no measured results confirm its real-world behavior. The database records zero wins for either GPU in head-to-head testing, so any selection must be based on the architectural and specification differences outlined above.