AMD Steam Machine GPU vs Intel Arc B770 Comparison

The AMD Steam Machine GPU and the Intel Arc B770 represent two distinct approaches to high-performance graphics for compact and full-size systems. The AMD part is a console-derived design built for efficiency, while the Intel card targets the mainstream desktop market with a larger memory pool and higher throughput. The database shows no direct head-to-head benchmark runs between these two units, and each has an identical percentile ranking of 50 against all GPUs, with an average benchmark score of zero. The available data therefore relies entirely on their recorded specifications and architectural traits to indicate where each unit would dominate.

Head-to-Head Benchmarks

The database contains no direct comparison scores between the AMD Steam Machine GPU and the Intel Arc B770. The head-to-head benchmark array is empty, and the win counters for both items are zero. This absence of measured results means any analysis must be drawn from the physical and computational specifications recorded for each unit.

The most striking contrast appears in raw compute throughput. The Intel Arc B770 delivers 19.66 TFLOPS of FP32 performance, while the AMD Steam Machine GPU reaches 17.56 TFLOPS. That difference places Intel roughly 12% ahead in single-precision floating-point work. In FP16 workloads, the gap widens considerably. The Intel part achieves 39.32 TFLOPS with a 2:1 ratio, while the AMD unit holds at 17.56 TFLOPS with a 1:1 ratio. Intel effectively doubles its FP16 output, giving it a 124% lead over AMD in half-precision tasks. This suggests the Arc B770 would handle AI inference, machine learning training, and compute-heavy shaders with substantially more headroom.

Memory bandwidth tells a similar story. The Intel Arc B770 features a 256-bit bus with 512.0 GB/s of bandwidth, while the AMD Steam Machine GPU uses a 128-bit bus with 288.0 GB/s. Intel holds a 78% advantage in raw bandwidth. The B770 also carries 16 GB of GDDR6 memory, double the 8 GB found on the AMD part. In scenarios where large textures, high-resolution assets, or data-heavy compute buffers exceed 8 GB, the Intel card would not need to spill to system memory.

Pixel and texture throughput follow the same pattern. The Intel Arc B770 records a pixel rate of 307.2 GPixel/s against 156.8 GPixel/s for the AMD part, a 96% advantage. Its texture rate of 614.4 GTexel/s doubles the 274.4 GTexel/s of the AMD unit. Rasterization-heavy workloads, such as high-resolution rendering with full-screen effects, would lean heavily toward Intel based on these figures.

The AMD Steam Machine GPU does hold a few structural advantages. Its boost clock of 2450 MHz slightly exceeds the 2400 MHz boost of the Intel Arc B770. The AMD base clock of 1720 MHz is lower than Intel's 2100 MHz base, but the AMD game clock of 2250 MHz indicates sustained performance under load. The AMD unit also draws 110 W, less than half of the 225 W TDP recorded for the Intel card. Efficiency is not directly measured in the database, but the power envelope difference suggests the AMD design achieves its 17.56 TFLOPS at a fraction of the power draw.

Where Each One Wins

The Intel Arc B770 wins in every category of raw throughput available in the database. Its FP32 output of 19.66 TFLOPS surpasses the AMD part's 17.56 TFLOPS. Its FP16 output of 39.32 TFLOPS more than doubles the AMD figure. Its memory bandwidth of 512.0 GB/s exceeds the AMD total by 224 GB/s. Its pixel rate of 307.2 GPixel/s nearly doubles the AMD rate, and its texture rate of 614.4 GTexel/s is more than double. The B770 also doubles the VRAM capacity, moving from 8 GB to 16 GB, and doubles the bus width from 128 bit to 256 bit.

The AMD Steam Machine GPU wins on power consumption and physical footprint. The recorded TDP of 110 W against 225 W indicates a design that generates far less heat and requires less cooling. The AMD unit uses no external power connectors, while the Intel card requires one 6-pin and one 8-pin connector. The AMD card measures 156 mm in length, 152 mm in height, and 162 mm in width. The Intel card has no recorded dimensions, but its dual-slot width and 225 W TDP suggest a larger cooling solution. The AMD part also carries a game clock of 2250 MHz, which is a specific sustained frequency not present in the Intel data.

For use cases, the Intel Arc B770 suits high-resolution gaming, content creation with large texture sets, and compute workloads that benefit from FP16 throughput. The 16 GB memory pool and 512.0 GB/s bandwidth give it room for 4K assets, ray-traced scenes, and machine learning tasks. The AMD Steam Machine GPU suits compact console-style builds where power draw and physical size are the primary constraints. Its 8 GB memory and 288.0 GB/s bandwidth remain capable for 1080p and 1440p gaming, but the data indicates it would run out of memory sooner than the Intel part in VRAM-heavy scenarios.

Architecture Differences

The AMD Steam Machine GPU uses the Navi 33 chip built on the RDNA 3.0 architecture, with the codename Hotpink Bonefish. Its generation is listed as Console GPU (Valve), indicating a design tailored for a specific console form factor. The process node is 6 nm at TSMC, with 13,300 million transistors on a 204 mm² die. The transistor density works out to 65.2 million per square millimeter.

The Intel Arc B770 uses the BMG-G31 chip built on the Xe2-HPG architecture, belonging to the Battlemage generation under the Arc 7 series. Its process node is 5 nm at TSMC, with a die size of 368 mm². The transistor count is listed as unknown, so no direct comparison of transistor density is possible. The die size difference is substantial: the Intel chip is 164 mm² larger than the AMD chip, representing an 80% increase in silicon area.

The compute unit layouts differ sharply. The AMD part features 1792 shading units, 112 texture mapping units, 64 raster output pipelines, and 28 ray tracing cores. The Intel part features 4096 shading units, 256 texture mapping units, 128 raster output pipelines, and 32 ray tracing cores. Intel more than doubles the shading units and TMUs, doubles the ROPs, and adds four more RT cores. The ray tracing core count difference is smaller in relative terms, with Intel holding a 14% advantage, but the surrounding pipeline is far wider.

Neither part lists tensor cores in the database. The FP16 capabilities therefore come from the shader array itself. The AMD part runs FP16 at a 1:1 ratio with FP32, meaning no dedicated throughput gain. The Intel part runs FP16 at a 2:1 ratio, indicating a more efficient half-precision path. This architectural choice explains the large FP16 gap and points to different design priorities. The AMD part appears optimized for balanced console workloads, while the Intel part allocates more silicon toward parallel compute.

Both parts support the same API set: DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. This means feature-level support for ray tracing, mesh shaders, and variable rate shading is present in both. The display outputs differ. The AMD part provides one HDMI 2.1a and one DisplayPort 2.1. The Intel part provides one HDMI 2.1a and three DisplayPort 2.1 connections, which supports multi-monitor setups more readily.

The Intel part uses a PCIe 4.0 x16 bus interface. The AMD part has no bus interface recorded. The Intel card has a predecessor listed as Alchemist, while the AMD card has no predecessor. The AMD part lists its production status as active, while the Intel part leaves that field empty.

Specification Differences

The recorded specifications reveal a clear separation between the two units. The process nodes differ, with AMD at 6 nm and Intel at 5 nm, both at TSMC. The die sizes differ by 164 mm², with AMD at 204 mm² and Intel at 368 mm². The transistor counts are 13,300 million for AMD and unknown for Intel. The base clocks are 1720 MHz for AMD and 2100 MHz for Intel. The boost clocks are 2450 MHz for AMD and 2400 MHz for Intel. The AMD unit records a game clock of 2250 MHz, while the Intel unit has no game clock. The memory clocks are 2250 MHz with 18 Gbps effective for AMD and 2000 MHz with 16 Gbps effective for Intel.

Memory capacity differs from 8 GB on AMD to 16 GB on Intel. The memory type is GDDR6 for both. The bus widths are 128 bit and 256 bit. Bandwidth is 288.0 GB/s against 512.0 GB/s. Shading units are 1792 against 4096. TMUs are 112 against 256. ROPs are 64 against 128. RT cores are 28 against 32. The pixel rates are 156.8 GPixel/s and 307.2 GPixel/s. The texture rates are 274.4 GTexel/s and 614.4 GTexel/s. FP32 output is 17.56 TFLOPS and 19.66 TFLOPS. FP16 output is 17.56 TFLOPS and 39.32 TFLOPS.

The TDP values are 110 W and 225 W. The AMD part has no slot width recorded, while the Intel part is dual-slot. The AMD part has no power connectors, while the Intel part requires one 6-pin and one 8-pin connector. The AMD part has no suggested PSU, while the Intel part suggests a 550 W power supply. The AMD part has no bus interface, while the Intel part uses PCIe 4.0 x16. The display outputs differ as noted. The AMD dimensions are 156 mm by 152 mm by 162 mm, while the Intel dimensions are not recorded. The release dates differ, with AMD on 2026-06-28 and Intel on 2025-12-31.

FAQ

Q: Which GPU has higher FP32 performance?

A: The Intel Arc B770 records 19.66 TFLOPS, while the AMD Steam Machine GPU records 17.56 TFLOPS. The Intel part holds a 12% advantage in single-precision compute.

Q: How much memory does each GPU have?

A: The AMD Steam Machine GPU has 8 GB of GDDR6 memory on a 128-bit bus. The Intel Arc B770 has 16 GB of GDDR6 memory on a 256-bit bus.

Q: What is the memory bandwidth difference?

A: The Intel Arc B770 delivers 512.0 GB/s, while the AMD Steam Machine GPU delivers 288.0 GB/s. Intel holds a 78% lead in memory bandwidth.

Q: Which GPU has a lower power draw?

A: The AMD Steam Machine GPU records a TDP of 110 W and uses no external power connectors. The Intel Arc B770 records a TDP of 225 W and requires one 6-pin and one 8-pin power connector.

Q: Do both GPUs support the same APIs?

A: Yes. Both record DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4 support.

Q: What are the display output options?

A: The AMD Steam Machine GPU provides one HDMI 2.1a and one DisplayPort 2.1. The Intel Arc B770 provides one HDMI 2.1a and three DisplayPort 2.1 connections.

The Verdict

The data points to a clear split in intended use. The Intel Arc B770 dominates in raw performance metrics. It delivers higher FP32 throughput, dramatically higher FP16 throughput, double the memory capacity, double the bus width, and substantially higher pixel and texture rates. For users prioritizing compute performance, high-resolution textures, or half-precision workloads, the recorded specifications favor the Intel part without qualification.

The AMD Steam Machine GPU favors efficiency and compactness. Its 110 W TDP, lack of power connectors, and small physical dimensions position it for constrained environments. The 8 GB memory pool and 288.0 GB/s bandwidth are sufficient for standard gaming resolutions, but the data shows it lacks the headroom of the Intel card in memory-heavy tasks. The identical percentile ranking of 50 and the absence of direct benchmark scores mean no measured validation exists for either unit. The specifications alone indicate that the Intel Arc B770 is the stronger performer, while the AMD Steam Machine GPU is the more restrained design. Users who need maximum throughput should follow the Intel data. Users who need minimal power draw and a compact footprint should follow the AMD data.