AMD Radeon 740M vs AMD Steam Machine GPU Comparison

Head-to-Head Benchmarks

The recorded data shows a decisive performance gap between these two AMD RDNA 3.0 parts, though the comparison is complicated by the fact that the AMD Steam Machine GPU has no benchmark entries in the database. The AMD Radeon 740M has two recorded benchmark scores: 10,172 in Geekbench OpenCL and 15,568 in Geekbench Vulkan, producing an average benchmark score of 12,870. The AMD Steam Machine GPU shows an average benchmark score of 0 with no individual test scores recorded, placing it at the 50th percentile versus the Radeon 740M's 53rd percentile among all GPUs.

The absence of recorded scores for the Steam Machine GPU means the data cannot confirm a direct head-to-head victory in any specific workload. The Radeon 740M's Geekbench Vulkan result of 15,568 is substantially higher than its OpenCL result of 10,172, a 53% advantage within its own results that indicates stronger performance under the Vulkan API. The Steam Machine GPU's lack of any benchmark data leaves its real-world standing unmeasured in this database.

The Radeon 740M's nearest rivals provide context for its standing. The AMD FirePro W5100 scores 12,847, a 0.2% margin over the 740M; the AMD Radeon Pro 455 scores 12,831, a 0.3% margin; and the NVIDIA GeForce GTX 590 scores 12,830, also a 0.3% margin. The AMD Radeon RX 580 scores 12,928, which is 0.4% higher than the 740M. These clustered results place the 740M within a tight performance band around the 12,800 to 12,900 average score range, with the RX 580 the only rival in its immediate vicinity to lead by more than a fraction of a percent.

The Steam Machine GPU has no nearest rivals listed, so no comparative deltas exist to anchor its expected performance. The data indicates the 740M sits in the middle of the database's GPU distribution, while the Steam Machine GPU, with no scores, cannot be ranked beyond its raw 50th percentile placement. The comparison therefore rests on architectural specifications and theoretical throughput numbers rather than measured benchmark outcomes.

Architecture Differences

The two GPUs share the RDNA 3.0 architecture but diverge sharply in implementation scale. The AMD Radeon 740M uses the Phoenix2 chip built on TSMC's 4 nm process, containing 20,900 million transistors on a 137 mm² die, yielding a transistor density of 152.6 million per mm². The AMD Steam Machine GPU uses the Navi 33 chip, codenamed Hotpink Bonefish, built on TSMC's 6 nm process, containing 13,300 million transistors on a 204 mm² die, yielding a transistor density of 65.2 million per mm². The 740M's smaller, denser chip reflects its integrated graphics role, while the Steam Machine GPU's larger, less dense die is designed as a discrete console part.

Core counts differ by a wide margin. The Radeon 740M carries 256 shading units, 16 texture mapping units, 8 render output units, and 4 ray tracing cores. The Steam Machine GPU carries 1,792 shading units, 112 TMUs, 64 ROPs, and 28 ray tracing cores. That is 7 times the shading units, 7 times the TMUs, 8 times the ROPs, and 7 times the ray tracing cores on the Steam Machine GPU. The throughput figures follow directly: the 740M delivers 22.40 GPixel/s pixel rate, 44.80 GTexel/s texture rate, and 2.867 TFLOPS FP32, while the Steam Machine GPU delivers 156.8 GPixel/s, 274.4 GTexel/s, and 17.56 TFLOPS FP32. Both GPUs offer FP16 at a 1:1 ratio with FP32.

Clock behavior also differs. The 740M runs at an 800 MHz base and 2,800 MHz boost, while the Steam Machine GPU runs at a 1,720 MHz base, 2,450 MHz boost, and a 2,250 MHz game clock. The 740M's higher boost clock does not compensate for its far smaller core configuration. The Steam Machine GPU also has a dedicated memory clock of 2,250 MHz with 18 Gbps effective speed, whereas the 740M's memory is system shared.

Memory architecture is a fundamental split. The 740M uses system shared memory with a system shared bus width, making bandwidth system dependent. The Steam Machine GPU uses 8 GB of GDDR6 on a 128-bit bus with 288.0 GB/s bandwidth. The discrete memory subsystem gives the Steam Machine GPU a fixed, substantial bandwidth advantage that the 740M cannot match without relying on the host system's memory configuration.

Power and physical design differ accordingly. The 740M is an integrated graphics processor with a 45 W TDP, no power connectors, and motherboard-dependent display outputs. The Steam Machine GPU carries a 110 W TDP, no power connectors, and fixed display outputs of one HDMI 2.1a and one DisplayPort 2.1. Its dimensions are 156 mm by 152 mm by 162 mm. The 740M uses a PCIe 4.0 x8 bus interface; the Steam Machine GPU's bus interface is not recorded.

Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, so API feature parity holds. The 740M belongs to the Navi III IGP (Phoenix) generation with a predecessor of Navi II IGP and successor of Navi III IGP, released January 30, 2024. The Steam Machine GPU belongs to the Console GPU (Valve) generation with no predecessor or successor listed, released June 28, 2026.

FAQ

Q: Which GPU has more ray tracing cores?

A: The AMD Steam Machine GPU has 28 ray tracing cores, compared to 4 on the AMD Radeon 740M, a 7 to 1 ratio.

Q: What is the performance difference in FP32 compute?

A: The Steam Machine GPU delivers 17.56 TFLOPS FP32, while the Radeon 740M delivers 2.867 TFLOPS FP32. The Steam Machine GPU's figure is approximately 6.1 times higher.

Q: Do these GPUs support the same APIs?

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

Q: Why does the Radeon 740M have a higher boost clock than the Steam Machine GPU?

A: The 740M boosts to 2,800 MHz, while the Steam Machine GPU boosts to 2,450 MHz. The 740M's higher boost clock reflects its smaller integrated design, but the Steam Machine GPU's larger core count and dedicated memory produce far higher overall throughput.

Q: What memory does each GPU use?

A: The Radeon 740M uses system shared memory with system dependent bandwidth. The Steam Machine GPU uses 8 GB of GDDR6 on a 128-bit bus with 288.0 GB/s bandwidth.

Q: How do the recorded benchmark scores compare?

A: The Radeon 740M has an average benchmark score of 12,870 from Geekbench OpenCL (10,172) and Geekbench Vulkan (15,568). The Steam Machine GPU has no benchmark scores recorded, showing an average of 0.

Specification Differences

| Specification | AMD Radeon 740M | AMD Steam Machine GPU |

|----------------|-----------------|-----------------------|

| Chip | Phoenix2 | Navi 33 |

| Codename | null | Hotpink Bonefish |

| Generation | Navi III IGP (Phoenix) | Console GPU (Valve) |

| Process Node | 4 nm | 6 nm |

| Transistors | 20,900 million | 13,300 million |

| Die Size | 137 mm² | 204 mm² |

| Transistor Density | 152.6M / mm² | 65.2M / mm² |

| Base Clock | 800 MHz | 1720 MHz |

| Boost Clock | 2800 MHz | 2450 MHz |

| Game Clock | null | 2250 MHz |

| Memory Clock | System Shared | 2250 MHz 18 Gbps effective |

| Memory Size | System Shared | 8 GB |

| Memory Type | System Shared | GDDR6 |

| Memory Bus Width | System Shared | 128 bit |

| Memory Bandwidth | System Dependent | 288.0 GB/s |

| Shading Units | 256 | 1792 |

| TMUs | 16 | 112 |

| ROPs | 8 | 64 |

| Ray Tracing Cores | 4 | 28 |

| Pixel Rate | 22.40 GPixel/s | 156.8 GPixel/s |

| Texture Rate | 44.80 GTexel/s | 274.4 GTexel/s |

| FP32 | 2.867 TFLOPS | 17.56 TFLOPS |

| FP16 | 2.867 TFLOPS (1:1) | 17.56 TFLOPS (1:1) |

| TDP | 45 W | 110 W |

| Slot Width | IGP | null |

| Bus Interface | PCIe 4.0 x8 | null |

| Display Outputs | Motherboard Dependent | 1x HDMI 2.1a, 1x DisplayPort 2.1 |

| Dimensions | null | 156 mm x 152 mm x 162 mm |

| Release Date | 2024-01-30 | 2026-06-28 |

| Predecessor | Navi II IGP | null |

| Successor | Navi III IGP | null |

The Verdict

The data points to a clear hierarchy: the AMD Steam Machine GPU is the substantially more powerful part on paper, while the AMD Radeon 740M is the only one with measured benchmark results. The Steam Machine GPU's 17.56 TFLOPS FP32, 288.0 GB/s memory bandwidth, 1,792 shading units, and 64 ROPs give it a theoretical throughput advantage of roughly 6 times in compute, 6.1 times in texture rate, and 7 times in pixel rate over the 740M. Those figures are derived directly from the recorded specifications.

The Radeon 740M's advantage lies in efficiency and integration. Its 4 nm process and 45 W TDP, versus the Steam Machine GPU's 6 nm process and 110 W TDP, show a lower power envelope, and its system shared memory design requires no dedicated VRAM allocation. Its measured average benchmark score of 12,870 and 53rd percentile placement confirm it is a functional entry-level graphics solution, competitive with the AMD FirePro W5100, AMD Radeon Pro 455, NVIDIA GeForce GTX 590, and AMD Radeon RX 580, all within 0.4% of its average score.

The Steam Machine GPU's lack of benchmark data means its 50th percentile ranking is provisional. The database cannot confirm its real-world performance, but the specification sheet indicates a part designed for console-class workloads with fixed 8 GB GDDR6 memory and a discrete form factor. The 740M's active production status and recorded scores make it the verifiable option; the Steam Machine GPU's specifications make it the higher-ceiling option awaiting measurement.

Where Each One Wins

The AMD Steam Machine GPU wins on every raw throughput metric recorded. Its FP32 compute of 17.56 TFLOPS, texture rate of 274.4 GTexel/s, pixel rate of 156.8 GPixel/s, and memory bandwidth of 288.0 GB/s position it for demanding rendering workloads, high-resolution texture processing, and ray tracing tasks, given its 28 ray tracing cores. The dedicated 8 GB GDDR6 frame buffer removes reliance on system memory performance, and its fixed display outputs of one HDMI 2.1a and one DisplayPort 2.1 support direct connection to modern displays.

The AMD Radeon 740M wins on measured validation and integration efficiency. Its benchmark scores of 10,172 in Geekbench OpenCL and 15,568 in Geekbench Vulkan, with an average of 12,870, give it a confirmed performance baseline that the Steam Machine GPU lacks. Its 45 W TDP and IGP slot width make it suitable for compact systems without additional power connectors. The 4 nm process and 152.6M transistors per mm² density reflect a modern manufacturing approach, and its PCIe 4.0 x8 interface provides a defined host connection path. For workloads where Vulkan is used, its 15,568 Vulkan score indicates a strong showing relative to its OpenCL result.