AMD Radeon 840M vs AMD Radeon RX 7600S Comparison

Where Each One Wins

The AMD Radeon 840M and AMD Radeon RX 7600S occupy distinctly different positions in the mobile graphics landscape. The RX 7600S is a dedicated mobile GPU built on the Navi 33 chip, while the 840M is an integrated graphics processor within the Krackan Point platform. Benchmark data confirms a decisive performance gap between the two, with the RX 7600S holding every recorded performance win.

The RX 7600S delivers a PassMark G3D score of 15408, placing it in the 60th percentile among all GPUs in the database. Its average benchmark score of 16696 positions it alongside dedicated workstation cards such as the NVIDIA T400 4 GB, which scores 16792, a delta of -0.6%. The 840M, by contrast, has an average benchmark score of 0 and sits at the 50th percentile, with no individual benchmark records available for comparison. The absence of recorded scores for the 840M means the database shows zero wins for it across all head-to-head tests.

For compute-oriented workloads, the RX 7600S shows a PassMark GPU Compute score of 6520. The 840M has no comparable compute score recorded. In API-specific tests, the RX 7600S achieves PassMark DirectX 12 performance of 65, DirectX 11 performance of 140, DirectX 10 performance of 74, and DirectX 9 performance of 211. These results indicate the RX 7600S handles legacy DirectX 9 workloads substantially better than more modern API paths, with the DirectX 9 score more than three times the DirectX 12 score.

The 840M's role is confined to integrated graphics duties. Its 15 W TDP and system-shared memory architecture make it suitable for portable devices where dedicated graphics are not present. The RX 7600S, with a 75 W TDP, is a solution for thin-and-light gaming laptops that require dedicated VRAM and sustained performance. The data shows the RX 7600S is the clear performance leader, while the 840M offers basic graphics capability within an integrated package.

Architecture Differences

The two GPUs represent different architectural generations and design philosophies from AMD. The 840M uses RDNA 3.5 architecture on a 4 nm TSMC process, while the RX 7600S uses RDNA 3.0 architecture on a 6 nm TSMC process. The 840M belongs to the Navi III IGP generation for Strix Point Mobile, whereas the RX 7600S belongs to the Navi Mobile generation within the RX 7000M series.

The RX 7600S carries the codename "Hotpink Bonefish" and uses the Navi 33 chip. It has 13,300 million transistors on a 204 mm² die, with a transistor density of 65.2 million per square millimeter. The 840M's transistor count and die size are not recorded in the database. The RX 7600S uses a PCIe 4.0 x16 bus interface, while the 840M uses PCIe 4.0 x8.

Core configuration differs dramatically. The RX 7600S has 1792 shading units, 112 texture mapping units, 64 render output units, and 28 ray tracing cores. The 840M has 256 shading units, 16 TMUs, 8 ROPs, and 4 ray tracing cores. This represents a 7x difference in shader count, a 7x difference in TMUs, an 8x difference in ROPs, and a 7x difference in ray tracing cores in favor of the RX 7600S.

Clock speeds also differ. The RX 7600S has a base clock of 1500 MHz, a game clock of 1865 MHz, and a boost clock of 2200 MHz. The 840M has a base clock of 400 MHz and a boost clock of 2900 MHz. The 840M's boost clock is notably higher, but the massive core count advantage of the RX 7600S overwhelms the clock speed difference. The RX 7600S also has a dedicated memory clock of 2000 MHz with 16 Gbps effective speed.

Memory architecture is a fundamental distinction. The RX 7600S has 8 GB of GDDR6 memory on a 128-bit bus with 256.0 GB/s of bandwidth. The 840M uses system-shared memory with a system-dependent bandwidth figure and no dedicated VRAM. Both GPUs support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The RX 7600S has a predecessor of Polaris Mobile, while the 840M's predecessor is Navi II IGP.

FAQ

Q: Which GPU has more shading units?

A: The AMD Radeon RX 7600S has 1792 shading units, which is 7 times the 256 shading units found in the AMD Radeon 840M.

Q: What is the memory configuration of each GPU?

A: The RX 7600S has 8 GB of GDDR6 memory on a 128-bit bus with 256.0 GB/s bandwidth. The 840M uses system-shared memory with system-dependent bandwidth.

Q: How do the process nodes compare?

A: The 840M is built on a 4 nm TSMC process, while the RX 7600S uses a 6 nm TSMC process.

Q: What is the TDP difference between the two?

A: The RX 7600S has a 75 W TDP, while the 840M has a 15 W TDP. The 840M consumes substantially less power.

Q: Does the RX 7600S have recorded benchmark scores?

A: Yes, the RX 7600S has a PassMark G3D score of 15408, a 3DMark Steel Nomad DX12 score of 1888, a Geekbench OpenCL score of 68012, and a Geekbench Vulkan score of 73868.

Q: What is the release date of each product?

A: The RX 7600S was released on January 3, 2023. The 840M was released on February 28, 2025.

Specification Differences

| Specification | AMD Radeon 840M | AMD Radeon RX 7600S |

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

| Architecture | RDNA 3.5 | RDNA 3.0 |

| Process node | 4 nm | 6 nm |

| Chip | Krackan Point | Navi 33 |

| Transistors | Unknown | 13,300 million |

| Die size | Unknown | 204 mm² |

| Transistor density | N/A | 65.2M / mm² |

| Base clock | 400 MHz | 1500 MHz |

| Game clock | N/A | 1865 MHz |

| Boost clock | 2900 MHz | 2200 MHz |

| Memory size | System Shared | 8 GB |

| Memory type | System Shared | GDDR6 |

| Memory bus | System Shared | 128 bit |

| Memory bandwidth | System Dependent | 256.0 GB/s |

| Shading units | 256 | 1792 |

| TMUs | 16 | 112 |

| ROPs | 8 | 64 |

| Ray tracing cores | 4 | 28 |

| Pixel rate | 23.20 GPixel/s | 140.8 GPixel/s |

| Texture rate | 46.40 GTexel/s | 246.4 GTexel/s |

| FP32 | 1,484.8 GFLOPS | 15.77 TFLOPS |

| FP16 | 1,484.8 GFLOPS (1:1) | 31.54 TFLOPS (2:1) |

| TDP | 15 W | 75 W |

| Bus interface | PCIe 4.0 x8 | PCIe 4.0 x16 |

| Release date | 2025-02-28 | 2023-01-03 |

| Predecessor | Navi II IGP | Polaris Mobile |

Head-to-Head Benchmarks

The RX 7600S is the only GPU with recorded benchmark data, so the head-to-head comparison relies entirely on its measured results. The database shows no wins for the 840M in any recorded test.

In synthetic 3DMark testing, the RX 7600S scores 1888 in 3DMark Steel Nomad DX12. This test targets modern DirectX 12 rendering workloads and provides a baseline for contemporary game performance.

Geekbench results for the RX 7600S show 68012 in OpenCL and 73868 in Vulkan. The Vulkan score exceeds the OpenCL score by approximately 8.5%, indicating strong performance under the Vulkan API. These numbers place the RX 7600S in the 60th percentile among all GPUs in the database, with an average benchmark score of 16696.

PassMark testing provides a broader view. The RX 7600S achieves a PassMark G3D score of 15408, which is the primary gaming-oriented metric. Its PassMark GPU Compute score of 6520 represents roughly 42% of the G3D score, showing that compute throughput is substantial but secondary to graphics rendering capability.

The RX 7600S's nearest rivals in the database confirm its competitive position. The NVIDIA T400 4 GB scores 16792, which is 0.6% higher than the RX 7600S. The NVIDIA T400 scores 16508, which is 1.1% lower. The NVIDIA GeForce RTX 5090 D V2 scores 16504, 1.2% lower. The NVIDIA Tesla M4 scores 16932, 1.4% higher. These deltas place the RX 7600S within a tight performance band around the 16700 average score mark, with all rivals within approximately 1.5% of its average.

The RX 7600S's pixel rate of 140.8 GPixel/s and texture rate of 246.4 GTexel/s reflect its 64 ROPs and 112 TMUs. Its FP32 throughput of 15.77 TFLOPS provides the compute foundation for its benchmark results. The FP16 rate of 31.54 TFLOPS at a 2:1 ratio doubles the FP32 throughput for workloads that can use reduced precision.

The 840M's theoretical specifications indicate its integrated-class positioning. Its pixel rate of 23.20 GPixel/s and texture rate of 46.40 GTexel/s are roughly 16% and 19% of the RX 7600S figures respectively. Its FP32 of 1,484.8 GFLOPS is approximately 9.4% of the RX 7600S's 15.77 TFLOPS. The FP16 rate matches FP32 at a 1:1 ratio, unlike the RX 7600S's 2:1 ratio.

The recorded data shows a GPU that operates in a different performance class. The RX 7600S's average benchmark score of 16696 places it among dedicated mobile GPUs, while the 840M's lack of recorded benchmarks and integrated design point to entry-level capabilities. The RX 7600S also has an 8x advantage in ROPs and a 7x advantage in both shading units and TMUs, which directly translates to its higher pixel and texture rates. The RX 7600S's dedicated 256.0 GB/s memory bandwidth versus the 840M's system-shared memory further widens the gap in memory-intensive workloads.