AMD Steam Machine GPU vs NVIDIA GeForce RTX 4070 Comparison

FAQ

Q: How does the AMD Steam Machine GPU compare to the NVIDIA GeForce RTX 4070 in overall benchmark standing?

A: The database places the RTX 4070 at the 81st percentile of all GPUs, while the Steam Machine GPU sits at the 50th percentile. The RTX 4070 also has a recorded average benchmark score of 37,648, whereas the Steam Machine GPU has no benchmark entries in the database.

Q: What is the memory configuration difference between the two GPUs?

A: The Steam Machine GPU uses 8 GB of GDDR6 memory on a 128-bit bus, delivering 288.0 GB/s of bandwidth. The RTX 4070 uses 12 GB of GDDR6X memory on a 192-bit bus, delivering 504.2 GB/s of bandwidth.

Q: Which GPU has the higher boost clock?

A: The RTX 4070 has a boost clock of 2475 MHz, slightly ahead of the Steam Machine GPU's 2450 MHz boost. The Steam Machine GPU also lists a game clock of 2250 MHz, a figure not provided for the RTX 4070.

Q: How do the two compare in terms of compute throughput?

A: The RTX 4070 delivers 29.15 TFLOPS of FP32 performance, while the Steam Machine GPU delivers 17.56 TFLOPS. Both GPUs maintain a 1:1 FP16 to FP32 ratio.

Q: What are the power requirements for each GPU?

A: The Steam Machine GPU has a 110 W TDP and requires no external power connectors. The RTX 4070 has a 200 W TDP, uses a single 16-pin power connector, and has a suggested PSU of 550 W.

Q: What display outputs does each GPU provide?

A: The Steam Machine GPU offers 1x HDMI 2.1a and 1x DisplayPort 2.1. The RTX 4070 offers 1x HDMI 2.1 and 3x DisplayPort 1.4a.

The Verdict

The recorded data indicates a clear separation in performance class. The RTX 4070 holds the 81st percentile ranking and an average benchmark score of 37,648, while the Steam Machine GPU has no benchmark scores and sits at the 50th percentile. For workloads that rely on raw compute throughput, the RTX 4070 delivers 29.15 TFLOPS of FP32 performance, which is 66% higher than the Steam Machine GPU's 17.56 TFLOPS.

The RTX 4070 also carries substantially more memory bandwidth at 504.2 GB/s compared to 288.0 GB/s, and it has 12 GB of VRAM versus 8 GB. These figures point to the RTX 4070 being the choice for demanding gaming and compute tasks where memory capacity and bandwidth matter.

The Steam Machine GPU, however, operates at 110 W TDP with no external power connectors, making it suitable for compact console-style builds where power delivery is constrained. Its 6 nm process node and smaller die size of 204 mm², compared to the RTX 4070's 294 mm² on a 5 nm node, indicate a more thermally modest design.

The RTX 4070 is marked as end-of-life in production status, while the Steam Machine GPU remains active. The RTX 4070 has a launch MSRP of 599 USD.

Head-to-Head Benchmarks

The database contains no head-to-head benchmark results between these two GPUs. The RTX 4070, however, has a full suite of recorded benchmark scores across multiple tests. Its 3DMark Steel Nomad DX12 score is 3,854. In Geekbench, it records 154,858 in OpenCL and 174,152 in Vulkan. PassMark results show 26,927 in G3D, 14,720 in GPU compute, and lower scores in legacy DirectX tests: 320 in DirectX 9, 244 in DirectX 11, 139 in DirectX 10, and 103 in DirectX 12.

The Steam Machine GPU has no benchmark entries, so direct numerical comparisons cannot be made from the database. What can be stated is that the RTX 4070's average benchmark score of 37,648 places it near the NVIDIA Tesla P4, which scores 37,628 with a delta of 0.1%, and the AMD Radeon RX Vega 56, which scores 37,507 with a delta of 0.4%. The RTX 4070 also sits slightly below the NVIDIA GeForce RTX 4080 Mobile, which scores 38,135 with a delta of -1.3%, and above the AMD Radeon PRO W6400, which scores 37,157 with a delta of 1.3%.

The Steam Machine GPU's lack of benchmark data means its performance relative to these rivals cannot be quantified. The percentile ranking of 50 versus the RTX 4070's 81 does indicate a substantial gap in overall standing.

Specification Differences

The two GPUs differ across nearly every recorded specification. The Steam Machine GPU uses 13,300 million transistors on a 204 mm² die, while the RTX 4070 uses 35,800 million transistors on a 294 mm² die. Transistor density favors the RTX 4070 at 121.8M per mm² versus 65.2M per mm².

Clock speeds are close at the top end: the Steam Machine GPU boosts to 2450 MHz with a base of 1720 MHz, while the RTX 4070 boosts to 2475 MHz with a base of 1920 MHz. The Steam Machine GPU adds a game clock of 2250 MHz.

Memory specifications differ significantly. The Steam Machine GPU has 8 GB of GDDR6 on a 128-bit bus with 288.0 GB/s bandwidth and memory clock of 2250 MHz (18 Gbps effective). The RTX 4070 has 12 GB of GDDR6X on a 192-bit bus with 504.2 GB/s bandwidth and memory clock of 1313 MHz (21 Gbps effective).

Compute resources show the RTX 4070 with 5,888 shading units, 184 TMUs, and 184 tensor cores, versus the Steam Machine GPU's 1,792 shading units and 112 TMUs. Both have 64 ROPs. Ray tracing cores number 46 on the RTX 4070 and 28 on the Steam Machine GPU.

Rasterization rates differ: the RTX 4070 achieves 455.4 GTexel/s texture rate and 158.4 GPixel/s pixel rate, while the Steam Machine GPU achieves 274.4 GTexel/s and 156.8 GPixel/s. FP32 throughput is 29.15 TFLOPS for the RTX 4070 and 17.56 TFLOPS for the Steam Machine GPU.

Power and physical dimensions diverge sharply. The Steam Machine GPU runs at 110 W with no power connectors, while the RTX 4070 runs at 200 W with a 16-pin connector and 550 W suggested PSU. The Steam Machine GPU measures 156 mm by 152 mm by 162 mm, while the RTX 4070 measures 240 mm by 110 mm by 40 mm and is dual-slot. The RTX 4070 uses PCIe 4.0 x16, while the Steam Machine GPU has no recorded bus interface.

Architecture Differences

The Steam Machine GPU is built on RDNA 3.0 architecture with the Navi 33 chip, codenamed Hotpink Bonefish. It belongs to the Console GPU (Valve) generation and uses a 6 nm process from TSMC. The RTX 4070 uses Ada Lovelace architecture with the AD104 chip and belongs to the GeForce 40-series generation. It uses a 5 nm process from TSMC.

The Steam Machine GPU has 28 ray tracing cores, while the RTX 4070 has 46. The RTX 4070 also includes 184 tensor cores, a feature the Steam Machine GPU does not list. This indicates the RTX 4070 has dedicated hardware for AI acceleration and DLSS-style workloads, which the Steam Machine GPU lacks.

Both GPUs support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The display outputs differ, with the Steam Machine GPU offering DisplayPort 2.1 and the RTX 4070 offering DisplayPort 1.4a, though the RTX 4070 has three DisplayPort outputs versus one on the Steam Machine GPU.

The RTX 4070's predecessor is the GeForce 30 series and its successor is the GeForce 50 series, confirming its position in the NVIDIA product stack. The Steam Machine GPU has no recorded predecessor or successor. Production status shows the Steam Machine GPU as active while the RTX 4070 is end-of-life.

The release dates differ substantially: the Steam Machine GPU is dated 2026-06-28, while the RTX 4070 is dated 2023-04-11. The RTX 4070 has a launch MSRP of 599 USD, while the Steam Machine GPU has no recorded launch price.

Where Each One Wins

The RTX 4070 wins on every measurable performance metric in the database. Its FP32 throughput of 29.15 TFLOPS is 66% higher than the Steam Machine GPU's 17.56 TFLOPS. Texture rate of 455.4 GTexel/s exceeds the Steam Machine GPU's 274.4 GTexel/s by a wide margin. Memory bandwidth of 504.2 GB/s is 75% higher than 288.0 GB/s. The 12 GB VRAM capacity versus 8 GB gives the RTX 4070 more headroom for high-resolution textures and larger datasets.

The RTX 4070's 184 tensor cores provide dedicated AI compute capability that the Steam Machine GPU does not list. Its 46 ray tracing cores versus 28 suggest better ray tracing performance, though no direct benchmark confirms this.

The Steam Machine GPU wins on power efficiency and physical integration. Its 110 W TDP is 45% lower than the RTX 4070's 200 W. It requires no external power connectors, making it compatible with power delivery systems that cannot support a 16-pin connector. Its compact dimensions of 156 mm by 152 mm by 162 mm contrast with the RTX 4070's longer 240 mm card, which also requires a dual-slot mounting.

The Steam Machine GPU's active production status and 2026 release date indicate it is a current product for Valve's console platform. The RTX 4070, while end-of-life, remains the higher-performing option in the database's recorded metrics.

For users building a system with strict power and space constraints, the Steam Machine GPU's 110 W TDP and connector-free design are clear advantages. For users prioritizing raw performance, memory capacity, and bandwidth, the RTX 4070's specifications dominate across the board. The 50th versus 81st percentile ranking summarizes this divide: the RTX 4070 sits in the upper tier of all GPUs, while the Steam Machine GPU sits at the median.