AMD Radeon RX 7600 vs NVIDIA GeForce GTX 1660 SUPER Comparison

AMD Radeon RX 7600 vs NVIDIA GeForce GTX 1660 SUPER is a match-up between two very different generations of GPU architecture. The recorded data shows the RX 7600, built on the Navi 33 chip, wins 9 of the 10 benchmark comparisons, while the GTX 1660 SUPER, using the TU116 chip, takes a single victory. The average benchmark score for the RX 7600 is 15171, placing it in the 57th percentile of all GPUs, while the GTX 1660 SUPER averages 12986, landing in the 53rd percentile.

Head-to-Head Benchmarks

The most decisive result comes from the 3DMark Steel Nomad DX12 test. The RX 7600 scores 2310, while the GTX 1660 SUPER scores 1278. That is a delta of 80.8% in favor of the AMD card, representing the largest single performance gap in this comparison. This test is a strong indicator of modern DirectX 12 workload performance, and the data shows the RX 7600 is in a different class here.

In compute-oriented workloads, the RX 7600 also shows a commanding lead. The Passmark GPU Compute test sees the AMD card score 8790 versus 5076 for the NVIDIA card, a 73.2% advantage. Similarly, the Geekbench OpenCL test shows the RX 7600 at 88051 points, while the GTX 1660 SUPER manages 52490, a 67.7% delta. These results suggest that for general-purpose GPU compute tasks, the newer RDNA 3.0 architecture offers substantially more throughput.

The synthetic DirectX 11 results also favor the RX 7600 heavily. In Passmark DirectX 11, the AMD card scores 172 compared to 104 for the NVIDIA card, a 65.4% difference. The overall 3D graphics workload, measured by Passmark G3D, shows the RX 7600 at 16634 and the GTX 1660 SUPER at 12699, a 31% lead. The RX 7600 also wins in older DirectX versions, with a 19.6% advantage in DirectX 9 (226 vs 189) and a 29.2% advantage in DirectX 10 (84 vs 65).

The only test where the GTX 1660 SUPER comes out ahead is Geekbench Vulkan. Here, the NVIDIA card scores 57102, while the RX 7600 scores 34401. That is a 39.8% delta in favor of NVIDIA. This is a significant and notable outlier, as the RX 7600 wins every other benchmark. The data suggests that in this specific Vulkan test, the older NVIDIA architecture delivers better results, which can be critical for users running Vulkan-based games or applications.

In the two remaining tests, the RX 7600 holds a solid but less dramatic edge. Passmark DirectX 12 shows a 16% advantage (58 vs 50), and Passmark G2D (2D graphics) shows a 22.2% advantage (984 vs 805). Overall, the benchmark data paints a clear picture of the RX 7600 being the faster card by a wide margin in most scenarios, with the GTX 1660 SUPER only countering in a single Vulkan workload.

The Verdict

Based strictly on the benchmark results, the AMD Radeon RX 7600 is the superior choice for almost all workloads. It leads in 9 out of 10 tests, with particularly strong performance in modern DirectX 12 and compute applications. Users who prioritize raw performance, especially in DX12 gaming or GPU compute tasks, should select the RX 7600 based on the data.

The NVIDIA GeForce GTX 1660 SUPER shows a clear strength in the Geekbench Vulkan test, where it beats the RX 7600 by a substantial margin. This suggests that for applications specifically optimized for Vulkan, the GTX 1660 SUPER could be a viable option. However, this single win does not offset its losses in every other category.

The production status also differs: the RX 7600 is marked as "Active", while the GTX 1660 SUPER is "End-of-life". This indicates the RX 7600 is a current product, whereas the GTX 1660 SUPER is a legacy part. The data supports the idea that the RX 7600 is the more forward-looking and capable GPU, while the GTX 1660 SUPER remains a competent but older alternative for specific Vulkan-focused use cases.

Architecture Differences

The two GPUs come from different architectural generations. The AMD Radeon RX 7600 uses the RDNA 3.0 architecture, with the codename "Hotpink Bonefish", and is part of the Navi III (RX 7000) generation. The NVIDIA GeForce GTX 1660 SUPER is built on the Turing architecture and belongs to the GeForce 16 generation.

The manufacturing process is a key differentiator. The RX 7600 is produced on a 6 nm process node at TSMC, while the GTX 1660 SUPER uses a 12 nm process at the same foundry. This allows the RX 7600 to pack 13,300 million transistors into a 204 mm² die, resulting in a transistor density of 65.2M per mm². The GTX 1660 SUPER has 6,600 million transistors on a larger 284 mm² die, with a density of only 23.2M per mm². The smaller, denser node gives the RX 7600 a significant efficiency and capability advantage.

The RX 7600 also includes 32 ray tracing cores, a feature entirely absent from the GTX 1660 SUPER, which has no RT cores. This means the RX 7600 supports hardware-accelerated ray tracing, while the GTX 1660 SUPER does not. The API support reflects this: the RX 7600 supports DirectX 12 Ultimate (12_2), while the GTX 1660 SUPER is limited to DirectX 12 (12_1). Both cards support OpenGL 4.6 and Vulkan 1.4, but the RX 7600 has access to more advanced rendering features.

The FP16 compute capabilities differ in their ratios. The RX 7600 achieves 21.75 TFLOPS for both FP32 and FP16 at a 1:1 ratio, while the GTX 1660 SUPER has 5.027 TFLOPS for FP32 and 10.05 TFLOPS for FP16 at a 2:1 ratio. The RX 7600's 1:1 ratio indicates a more balanced compute architecture, which can be beneficial for workloads that mix precision levels.

Specification Differences

The memory configurations show a trade-off between capacity and bandwidth. The RX 7600 has 8 GB of GDDR6 memory on a 128-bit bus, delivering a bandwidth of 288.0 GB/s. The GTX 1660 SUPER has 6 GB of GDDR6 on a wider 192-bit bus, achieving a higher bandwidth of 336.0 GB/s. Despite having less bandwidth, the RX 7600 still outperforms the GTX 1660 SUPER in most tests, suggesting its other architectural advantages compensate for the narrower bus.

Clock speeds are significantly higher on the RX 7600. It has a base clock of 1720 MHz and a boost clock of 2655 MHz, with a game clock of 2250 MHz. The GTX 1660 SUPER runs at a base clock of 1530 MHz and a boost clock of 1785 MHz. The memory clock also differs: the RX 7600 runs at 2250 MHz (18 Gbps effective), while the GTX 1660 SUPER runs at 1750 MHz (14 Gbps effective).

The compute units reflect the performance gap. The RX 7600 has 2048 shading units, 128 TMUs, and 64 ROPs, while the GTX 1660 SUPER has 1408 shading units, 88 TMUs, and 48 ROPs. This translates into a pixel rate of 169.9 GPixel/s and a texture rate of 339.8 GTexel/s for the RX 7600, versus 85.68 GPixel/s and 157.1 GTexel/s for the GTX 1660 SUPER. The FP32 throughput is 21.75 TFLOPS for the RX 7600, compared to 5.027 TFLOPS for the GTX 1660 SUPER.

The power and connectivity specs also differ. The RX 7600 has a TDP of 165 W and requires a suggested 450 W power supply, while the GTX 1660 SUPER has a TDP of 125 W and a suggested 300 W PSU. Both use a single 8-pin power connector and are dual-slot cards. The bus interface is PCIe 4.0 x8 for the RX 7600, while the GTX 1660 SUPER uses PCIe 3.0 x16. The display outputs are newer on the RX 7600, with 1x HDMI 2.1a and 3x DisplayPort 2.1, versus the GTX 1660 SUPER's 1x DVI, 1x HDMI 2.0, and 1x DisplayPort 1.4a.

The physical dimensions vary slightly: the RX 7600 is 204 mm long and 115 mm tall, while the GTX 1660 SUPER is 229 mm long, 111 mm tall, and 35 mm wide.

FAQ

Q: Which GPU wins the most benchmark comparisons?

A: The AMD Radeon RX 7600 wins 9 out of 10 head-to-head benchmark tests against the NVIDIA GeForce GTX 1660 SUPER.

Q: In which benchmark does the GTX 1660 SUPER outperform the RX 7600?

A: The GTX 1660 SUPER wins the Geekbench Vulkan test, scoring 57102 versus 34401 for the RX 7600, a delta of 39.8% in NVIDIA's favor.

Q: What is the largest performance gap between the two cards?

A: The largest gap is in the 3DMark Steel Nomad DX12 test, where the RX 7600 scores 2310 and the GTX 1660 SUPER scores 1278, giving the AMD card an 80.8% advantage.

Q: How do their average benchmark scores compare?

A: The RX 7600 has an average benchmark score of 15171, while the GTX 1660 SUPER averages 12986. The RX 7600 sits in the 57th percentile of all GPUs, compared to the 53rd percentile for the GTX 1660 SUPER.

Q: Does the RX 7600 have ray tracing support?

A: Yes, the RX 7600 includes 32 ray tracing cores, while the GTX 1660 SUPER has no RT cores at all.

Q: What is the memory size difference?

A: The RX 7600 has 8 GB of GDDR6 memory, while the GTX 1660 SUPER has 6 GB of GDDR6 memory. The GTX 1660 SUPER has a wider 192-bit bus and higher bandwidth of 336.0 GB/s compared to the RX 7600's 128-bit bus and 288.0 GB/s.