AMD Radeon 680M vs AMD Radeon RX 7600S Comparison

The AMD Radeon RX 7600S and the AMD Radeon 680M occupy very different positions in the mobile graphics landscape, despite sharing a 6nm TSMC manufacturing process. The RX 7600S is a discrete solution from the Radeon RX 7000 series, built on the Navi 33 chip with RDNA 3.0 architecture, while the 680M is an integrated graphics processor (IGP) from the Rembrandt Mobile generation, using RDNA 2.0. The benchmark data reveals a clear hierarchy, with the discrete GPU dominating across all shared tests, yet the integrated part holds its own in a specific context that makes it a compelling option for certain users.

Where Each One Wins

The AMD Radeon RX 7600S wins decisively in every head-to-head benchmark category, establishing itself as the clear performance leader for demanding workloads. In the 3DMark Steel Nomad DX12 test, the RX 7600S scores 1888 against the 680M’s 378, a staggering 399.5% advantage. This gap widens further in compute-oriented tests: Geekbench OpenCL shows the RX 7600S at 68012 versus 23468 (189.8% ahead), and Geekbench Vulkan shows 73868 versus 21965 (236.3% ahead). For gaming, content creation, or any GPU-accelerated task that leverages DirectX 12 or Vulkan, the RX 7600S is unequivocally the stronger choice.

The AMD Radeon 680M’s wins are not about raw performance but about integration and efficiency. As an IGP with a 50 W TDP, it consumes significantly less power than the RX 7600S’s 75 W TDP. The 680M is part of the Rembrandt+ chip, meaning it shares the die with the CPU, eliminating the need for separate memory and reducing the physical footprint. The data shows its 3.379 TFLOPS FP32 performance is modest, but its real advantage lies in enabling a laptop to have decent graphics capability without a discrete GPU, making it suitable for thin-and-light designs where space and battery life are paramount. Its memory is "System Shared," which means bandwidth is "System Dependent," allowing system designers to balance cost and performance, whereas the RX 7600S requires dedicated 8 GB of GDDR6.

FAQ

Q: Which GPU is faster for DirectX 12 gaming?

A: The AMD Radeon RX 7600S is dramatically faster. In the 3DMark Steel Nomad DX12 test, it scores 1888 compared to the 680M’s 378, a 399.5% difference in favor of the RX 7600S.

Q: How do the two compare in Vulkan performance?

A: The RX 7600S leads by a wide margin. On Geekbench Vulkan, it achieves a score of 73868, while the Radeon 680M manages 21965, putting the RX 7600S 236.3% ahead.

Q: What does the 680M offer that the RX 7600S does not?

A: The 680M is an integrated graphics processor that shares system memory and has a lower 50 W TDP, making it more power-efficient and simpler to integrate into compact laptops. The RX 7600S requires dedicated GDDR6 memory and has a 75 W TDP.

Q: Is the Radeon 680M a viable option for general compute tasks?

A: It is, but with limitations. In Geekbench OpenCL, the 680M scores 23468, which is respectable for an IGP, yet the RX 7600S more than doubles that performance with a score of 68012.

Q: How does the RX 7600S compare to its nearest rivals?

A: The RX 7600S has an average benchmark score of 16696, placing it 0.6% behind the NVIDIA T400 4 GB and 1.1% ahead of the NVIDIA T400, indicating it sits in a similar performance class to those entry-level discrete GPUs.

Q: What is the performance percentile of the Radeon 680M?

A: The 680M falls into the 57th percentile of all GPUs, with an average benchmark score of 15270. Its nearest rival is the NVIDIA GeForce GTX 580, which scores 15283, a negligible 0.1% difference.

Head-to-Head Benchmarks

The head-to-head results are one-sided, but the magnitude of each victory tells a distinct story about the architectural gulf between these two parts. The largest relative win for the RX 7600S comes in the 3DMark Steel Nomad DX12 test, where it scores 1888 against the 680M’s 378. This 399.5% delta is not merely a linear scaling of specifications; it reflects the fundamental difference between a dedicated graphics card with 8 GB of GDDR6 on a 128-bit bus (256.0 GB/s bandwidth) and an IGP relying on shared system memory with variable bandwidth. The RX 7600S’s 1792 shading units, 112 TMUs, and 64 ROPs vastly outnumber the 680M’s 768 shading units, 48 TMUs, and 32 ROPs, enabling the former to sustain far higher fill rates (140.8 GPixel/s vs 70.40 GPixel/s) and texture rates (246.4 GTexel/s vs 105.6 GTexel/s).

In Geekbench Vulkan, the RX 7600S posts 73868 versus 21965, a 236.3% advantage. This test benefits from the RX 7600S’s 28 ray tracing cores, which are absent in the 680M’s 12 RT cores, though the score difference suggests that compute and rasterization throughput play a larger role. The FP32 compute figures support this: the RX 7600S delivers 15.77 TFLOPS compared to the 680M’s 3.379 TFLOPS, a 4.67x difference that closely mirrors the 4.37x gap in OpenCL scores (68012 vs 23468). The 189.8% OpenCL delta is the smallest of the three, hinting that the 680M’s architecture, while slower, remains relatively efficient in pure compute workloads when not constrained by memory bandwidth.

Specification Differences

The two GPUs diverge sharply on nearly every hardware specification, reflecting their different roles. The RX 7600S is built on the Navi 33 chip with a die size of 204 mm², containing 13,300 million transistors, while the 680M uses the Rembrandt+ chip with a slightly larger 208 mm² die and 13,100 million transistors. The RX 7600S has a base clock of 1500 MHz and a boost clock of 2200 MHz, with a game clock of 1865 MHz; the 680M has a higher base clock of 2000 MHz but the same 2200 MHz boost. Memory is the most significant differentiator: the RX 7600S has 8 GB of GDDR6 on a 128-bit bus with 256.0 GB/s bandwidth, while the 680M uses "System Shared" memory with "System Dependent" bandwidth.

Compute resources are heavily skewed toward the RX 7600S, with 1792 shading units, 112 TMUs, 64 ROPs, and 28 RT cores, versus the 680M’s 768 shading units, 48 TMUs, 32 ROPs, and 12 RT cores. This results in a pixel rate of 140.8 GPixel/s and a texture rate of 246.4 GTexel/s for the RX 7600S, versus 70.40 GPixel/s and 105.6 GTexel/s for the 680M. The RX 7600S also supports PCIe 4.0 x16, while the 680M uses PCIe 4.0 x8. Power consumption differs, with the RX 7600S rated at 75 W TDP and the 680M at 50 W TDP. Both share the same API support for DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Architecture Differences

Architecturally, these are two generations apart. The RX 7600S uses RDNA 3.0, AMD’s third-generation graphics architecture, which introduces a chiplet-like design philosophy and improved compute units. Its codename is "Hotpink Bonefish," and it belongs to the Navi Mobile (RX 7000M) generation. In contrast, the 680M uses RDNA 2.0, the previous generation, and is part of the Navi II IGP (Rembrandt Mobile) generation, with no codename listed. The RX 7600S’s transistor density is 65.2M / mm², slightly higher than the 680M’s 63.0M / mm², despite the 680M having a larger die. This density advantage, combined with RDNA 3.0’s architectural improvements, explains why the RX 7600S achieves 15.77 TFLOPS FP32 from a similar transistor count.

The RX 7600S’s predecessor is listed as "Polaris Mobile," while the 680M’s predecessor is "Vega II IGP," and the 680M has a successor in "Navi III IGP," whereas the RX 7600S currently has no successor. The RX 7600S relies exclusively on its dedicated GDDR6 memory, whereas the 680M’s shared memory design means its performance scales with system RAM speed, a variable the data cannot quantify. Both are manufactured by TSMC on a 6nm process, but the RX 7600S’s RDNA 3.0 features are designed for higher per-clock performance, which is evident in its 399.5% lead in 3DMark Steel Nomad despite only a 50% higher TDP. The 680M’s higher base clock of 2000 MHz partially compensates for its fewer cores, but it cannot bridge the gap in raw throughput.

The Verdict

The data points to a clear verdict: the AMD Radeon RX 7600S is the superior choice for anyone who needs consistent, high-level graphics performance in a mobile form factor. Its 399.5% lead in 3DMark Steel Nomad and 236.3% lead in Vulkan make it the only viable option for modern games and GPU-accelerated applications. The RX 7600S’s 60th percentile ranking among all GPUs, with an average benchmark score of 16696, places it in the same tier as the NVIDIA T400 4 GB (16792, 0.6% ahead) and NVIDIA T400 (16508, 1.1% behind), confirming it as a legitimate entry-level discrete solution.

The AMD Radeon 680M is not a competitor to the RX 7600S; it is an alternative concept. With a 57th percentile and an average score of 15270, it sits just 0.1% below the NVIDIA GeForce GTX 580, which is remarkable for an integrated GPU. Its 50 W TDP and shared memory architecture make it ideal for ultraportable laptops where the CPU and GPU must coexist on a single die, and where the 75 W TDP of the RX 7600S would be prohibitive. The 680M’s 3.379 TFLOPS FP32 performance is sufficient for light gaming and media tasks, but the fact that it loses every head-to-head benchmark by at least 189.8% means it should only be chosen when the discrete GPU’s power draw and physical footprint are deal-breakers. For raw performance, the RX 7600S is the only rational selection.