AMD Steam Machine GPU vs Intel Arc Pro B70 Comparison

Head-to-Head Benchmarks

The recorded database contains no direct benchmark results for either the AMD Steam Machine GPU or the Intel Arc Pro B70. With zero head-to-head measurements and zero wins for either side, the performance comparison must be derived entirely from the architectural and specification data available. The percentileVsAllGpus field places both cards at the 50th percentile, indicating they occupy a similar mid-range position in the overall GPU landscape, though this is a broad ranking rather than a precise performance equivalence.

The most significant measured advantage belongs to the Intel Arc Pro B70 in raw compute throughput. The Arc Pro B70 delivers 22.94 TFLOPS of FP32 performance, which is 30.6% higher than the AMD Steam Machine GPU's 17.56 TFLOPS. This gap is substantial and suggests the Intel part will pull ahead in compute-heavy workloads that scale with shader throughput. The Arc Pro B70 also has a decisive advantage in FP16, where its 45.88 TFLOPS (2:1 rate) is more than 2.6 times the AMD card's 17.56 TFLOPS (1:1 rate). The AMD Steam Machine GPU uses a 1:1 FP16 ratio, meaning its FP16 throughput equals its FP32 throughput, while the Intel architecture doubles FP16 performance, making the Arc Pro B70 far more capable in workloads that leverage half-precision arithmetic.

Memory bandwidth is another area of clear Intel superiority. The Arc Pro B70 has 608.0 GB/s of bandwidth from its 32 GB GDDR6 memory on a 256-bit bus, compared to the AMD Steam Machine GPU's 288.0 GB/s from 8 GB GDDR6 on a 128-bit bus. The Intel card offers more than double the bandwidth, which will matter in texture-heavy scenes, high-resolution rendering, and data-intensive compute tasks. The pixel rate and texture rate also favor Intel overwhelmingly: the Arc Pro B70 achieves 358.4 GPixel/s and 716.8 GTexel/s, versus 156.8 GPixel/s and 274.4 GTexel/s for the AMD part. These are 2.3x and 2.6x advantages respectively, indicating the Intel card has far greater fill-rate capacity.

The AMD Steam Machine GPU does not win any recorded specification category outright. Its clock speeds are lower across the board: 1720 MHz base and 2450 MHz boost versus 2280 MHz base and 2800 MHz boost for the Intel card. The AMD memory clock runs at 2250 MHz (18 Gbps effective) versus 2375 MHz (19 Gbps effective) for Intel, a marginal difference. The only areas where the AMD card is competitive are power consumption and physical size. The AMD Steam Machine GPU has a 110 W TDP versus 230 W for the Intel Arc Pro B70, meaning it draws less than half the power. It also has no power connectors required, while the Intel card needs a single 8-pin connector and a 550 W suggested power supply. The AMD card is substantially smaller: 156 mm in length, 152 mm in height, and 162 mm in width, versus 267 mm, 110 mm, and 39 mm for the Intel card. The AMD part is a compact, low-power solution, while the Intel card is a dual-slot, full-size add-in board.

Architecture Differences

The two GPUs come from different architectural generations and process nodes. The AMD Steam Machine GPU uses the Navi 33 chip built on RDNA 3.0 architecture, manufactured by TSMC on a 6 nm process. The die size is 204 mm² with 13,300 million transistors, yielding a transistor density of 65.2M / mm². The codename is "Hotpink Bonefish," and it belongs to the Console GPU (Valve) generation. The Intel Arc Pro B70 uses the BMG-G31 chip built on Xe2-HPG architecture, also manufactured by TSMC but on a 5 nm process. Its die size is 368 mm², which is 80% larger than the AMD chip, though Intel's transistor count is listed as unknown. The Intel card belongs to the Battlemage (Pro Series) generation.

The compute resources differ dramatically. The AMD Steam Machine GPU has 1792 shading units, 112 texture mapping units, 64 raster output units, and 28 ray tracing cores. The Intel Arc Pro B70 has 4096 shading units, 256 TMUs, 128 ROPs, and 32 RT cores. Intel has 2.3x the shading units, 2.3x the TMUs, 2.0x the ROPs, and 1.1x the RT cores. Neither card lists tensor cores, so AI acceleration must rely on standard shader paths or other unspecified hardware. The FP16 ratio difference is notable: AMD uses a 1:1 ratio where FP16 equals FP32, while Intel uses a 2:1 ratio where FP16 is double FP32. This indicates Intel's Xe2 architecture has dedicated half-precision throughput that AMD's RDNA 3.0 does not provide at the same level.

Memory architecture also diverges. The AMD card uses 8 GB GDDR6 on a 128-bit bus, while the Intel card uses 32 GB GDDR6 on a 256-bit bus. The memory clock is slightly higher on Intel: 2375 MHz versus 2250 MHz, but the bus width is the dominant factor in the bandwidth gap. The AMD card has a game clock of 2250 MHz, a feature Intel does not specify, and its memory bandwidth of 288.0 GB/s is less than half of Intel's 608.0 GB/s. The power delivery differs as well: the AMD card has no power connectors and a 110 W TDP, while the Intel card requires a single 8-pin connector, has a 230 W TDP, and recommends a 550 W power supply.

The bus interface is another differentiator. The Intel Arc Pro B70 uses PCIe 5.0 x16, while the AMD Steam Machine GPU does not list a bus interface in the database. Display outputs are similar, with both cards offering 1x HDMI 2.1a, but the Intel card adds 3x DisplayPort 2.1 versus 1x DisplayPort 2.1 for AMD. Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. Physical dimensions favor AMD for compact builds: 156 mm by 152 mm by 162 mm versus 267 mm by 110 mm by 39 mm. The Intel card is a dual-slot design, while the AMD card's slot width is not specified. Release dates differ, with the AMD card coming later: 2026-06-28 versus 2026-03-25 for Intel.

FAQ

Q: Which GPU has higher raw FP32 compute performance?

A: The Intel Arc Pro B70 delivers 22.94 TFLOPS of FP32 performance, which is 30.6% higher than the AMD Steam Machine GPU's 17.56 TFLOPS.

Q: How do the memory capacities and bandwidths compare?

A: The Intel Arc Pro B70 has 32 GB GDDR6 memory with 608.0 GB/s bandwidth on a 256-bit bus, while the AMD Steam Machine GPU has 8 GB GDDR6 with 288.0 GB/s bandwidth on a 128-bit bus. Intel's bandwidth is more than double.

Q: What is the power consumption difference?

A: The AMD Steam Machine GPU has a 110 W TDP and requires no power connectors, while the Intel Arc Pro B70 has a 230 W TDP, requires a single 8-pin connector, and suggests a 550 W power supply. AMD draws less than half the power.

Q: Do both cards support ray tracing?

A: Yes, both have dedicated ray tracing cores. The AMD Steam Machine GPU has 28 RT cores, while the Intel Arc Pro B70 has 32 RT cores, a difference of 4 cores in Intel's favor.

Q: What is the FP16 performance comparison?

A: The Intel Arc Pro B70 achieves 45.88 TFLOPS FP16 (2:1 ratio), which is more than 2.6 times the AMD Steam Machine GPU's 17.56 TFLOPS FP16 (1:1 ratio). Intel's architecture doubles half-precision throughput, while AMD's is equal to FP32.

Q: Which card has higher pixel and texture fill rates?

A: The Intel Arc Pro B70 has 358.4 GPixel/s and 716.8 GTexel/s, versus 156.8 GPixel/s and 274.4 GTexel/s for the AMD Steam Machine GPU. Intel leads by 2.3x in pixel rate and 2.6x in texture rate.

The Verdict

The data points to a clear performance hierarchy: the Intel Arc Pro B70 is the significantly faster GPU in nearly every measurable compute and rendering category. It leads in FP32 by 30.6%, in FP16 by more than 2.6 times, in memory bandwidth by more than double, in pixel rate by 2.3x, and in texture rate by 2.6x. It also has 32 GB of memory versus 8 GB, 4096 shading units versus 1792, and higher base and boost clocks. The AMD Steam Machine GPU has no recorded victory in any specification comparison. Its only advantages are lower power consumption (110 W versus 230 W), smaller physical dimensions, and the absence of power connector requirements. The Intel card is a professional-grade compute and rendering solution with substantial throughput and memory resources, while the AMD card is a compact, power-efficient console-style GPU with modest specifications. For any workload that prioritizes raw performance, memory capacity, or bandwidth, the Intel Arc Pro B70 is the superior choice. For constrained power or space environments, the AMD Steam Machine GPU is the only viable option, but it sacrifices significant performance to achieve that efficiency.

Specification Differences

The following fields differ between the two GPUs:

• Chip: Navi 33 (AMD) versus BMG-G31 (Intel)
• Architecture: RDNA 3.0 versus Xe2-HPG
• Codename: Hotpink Bonefish versus not specified
• Generation: Console GPU (Valve) versus Battlemage (Pro Series)
• Process Node: 6 nm versus 5 nm
• Die Size: 204 mm² versus 368 mm²
• Transistors: 13,300 million versus unknown
• Transistor Density: 65.2M / mm² versus not specified
• Base Clock: 1720 MHz versus 2280 MHz
• Boost Clock: 2450 MHz versus 2800 MHz
• Game Clock: 2250 MHz versus not specified
• Memory Clock: 2250 MHz 18 Gbps effective versus 2375 MHz 19 Gbps effective
• Memory Size: 8 GB versus 32 GB
• Memory Bus Width: 128 bit versus 256 bit
• Memory Bandwidth: 288.0 GB/s versus 608.0 GB/s
• Shading Units: 1792 versus 4096
• TMUs: 112 versus 256
• ROPs: 64 versus 128
• RT Cores: 28 versus 32
• Pixel Rate: 156.8 GPixel/s versus 358.4 GPixel/s
• Texture Rate: 274.4 GTexel/s versus 716.8 GTexel/s
• FP32: 17.56 TFLOPS versus 22.94 TFLOPS
• FP16: 17.56 TFLOPS (1:1) versus 45.88 TFLOPS (2:1)
• TDP: 110 W versus 230 W
• Slot Width: not specified versus Dual-slot
• Power Connectors: None versus 1x 8-pin
• Suggested PSU: not specified versus 550 W
• Bus Interface: not specified versus PCIe 5.0 x16
• Display Outputs: 1x HDMI 2.1a, 1x DisplayPort 2.1 versus 1x HDMI 2.1a, 3x DisplayPort 2.1
• Dimensions: 156 mm x 152 mm x 162 mm versus 267 mm x 110 mm x 39 mm
• Release Date: 2026-06-28 versus 2026-03-25
• Production Status: Active versus not specified
• Launch MSRP: not specified versus 949 USD

Where Each One Wins

The Intel Arc Pro B70 wins in every performance-critical category. Its 22.94 TFLOPS FP32 and 45.88 TFLOPS FP16 make it the clear choice for compute workloads such as scientific simulation, machine learning inference, or any task that leverages half-precision arithmetic. The 32 GB GDDR6 memory with 608.0 GB/s bandwidth supports large datasets and high-resolution textures without spillover, while the 358.4 GPixel/s pixel rate and 716.8 GTexel/s texture rate handle demanding rendering scenarios with high fill-rate requirements. The 4096 shading units and 256 TMUs provide ample parallel throughput for shader-heavy games or professional rendering applications. The 32 RT cores offer a slight edge in ray-traced content. The dual-slot design and PCIe 5.0 x16 interface indicate a desktop add-in card meant for full-sized workstations.

The AMD Steam Machine GPU wins in power efficiency and physical footprint. Its 110 W TDP is less than half the Intel card's 230 W, and it requires no external power connectors, making it suitable for compact or embedded systems where power delivery is limited. The dimensions of 156 mm by 152 mm by 162 mm are drastically smaller than the Intel card's 267 mm by 110 mm by 39 mm, allowing installation in small form factor cases. The absence of a specified bus interface and power connectors suggests an integrated or semi-integrated design typical of console hardware. The 28 RT cores still provide ray tracing capability, but with lower throughput. The 8 GB memory and 288.0 GB/s bandwidth are sufficient for 1080p or 1440p gaming, but insufficient for heavy compute or 4K texture sets. The AMD card is a capable low-power GPU for constrained environments, but the Intel Arc Pro B70 dominates in any scenario where performance is the primary objective.