AMD Radeon RX 6600 vs NVIDIA GeForce RTX 4060 Mobile Comparison

The Verdict

The data presents a clear overall winner: the NVIDIA GeForce RTX 4060 Mobile takes 8 of 9 head-to-head benchmark comparisons, with an average benchmark score of 22,729 versus 19,036 for the AMD Radeon RX 6600. That is a 19.4% gap in aggregate performance, placing the RTX 4060 Mobile in the 67th percentile of all GPUs while the RX 6600 sits at the 63rd percentile. For users prioritizing raw compute and modern API performance, the RTX 4060 Mobile is the obvious choice. However, the RX 6600 wins the 2D graphics test decisively, and it remains a viable option for tasks that emphasize pixel pushing over shader throughput. The RTX 4060 Mobile also benefits from being an active product with newer architecture, while the RX 6600 is end-of-life, which matters for long-term driver support and availability.

The nearest rivals in the database further contextualize this matchup. The RTX 4060 Mobile sits within 1.3% of the RTX 5060 Mobile, 1.3% below the Intel Arc B580, and 0.7% below the RTX 2080, while being 0.8% ahead of the RX 7700 XT. The RX 6600, by contrast, is effectively tied with the Quadro K6000 and RTX 4050 Mobile, with deltas of 0.0% and -0.1%, respectively. This means the RTX 4060 Mobile competes in a higher performance tier, while the RX 6600 is anchored near entry-level mobile GPUs.

Architecture Differences

The two GPUs come from fundamentally different design philosophies. The RTX 4060 Mobile uses the AD107 chip built on Ada Lovelace architecture, fabricated on a 5 nm process at TSMC with 18,900 million transistors packed into a 159 mm² die. That yields a transistor density of 118.9 million per mm², an exceptionally high figure. The RX 6600 uses the Navi 23 chip with RDNA 2.0 architecture, manufactured on a 7 nm process, also at TSMC, with 11,060 million transistors spread across a larger 237 mm² die, giving a density of just 46.7 million per mm².

The transistor count and density difference is stark: the RTX 4060 Mobile crams 71% more transistors into a 33% smaller die. This explains why the RTX 4060 Mobile achieves higher FP32 throughput at 11.61 TFLOPS versus 8.928 TFLOPS for the RX 6600, despite the AMD card having a higher boost clock at 2491 MHz versus 1890 MHz. The NVIDIA part relies on architectural efficiency and parallel throughput rather than raw clock speed.

Feature sets diverge significantly. The RTX 4060 Mobile includes 96 tensor cores, which the RX 6600 lacks entirely (tensor cores are listed as null). This gives NVIDIA a hardware advantage for AI and machine learning workloads. Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, so API compatibility is identical. However, the RTX 4060 Mobile has 3072 shading units versus 1792, and 24 RT cores versus 28, meaning AMD has more dedicated ray tracing units but NVIDIA has more shader processors. The memory subsystems are similar in capacity (8 GB GDDR6 on both) and bus width (128 bit), but NVIDIA runs its memory at 2000 MHz (16 Gbps effective) versus AMD's 1750 MHz (14 Gbps effective), yielding 256.0 GB/s versus 224.0 GB/s bandwidth.

Process node and power draw also differ: the RTX 4060 Mobile is rated at 115 W TDP, while the RX 6600 draws 132 W. The NVIDIA part is an IGP (integrated graphics processor) with no power connectors, designed for laptops, whereas the RX 6600 is a dual-slot desktop card requiring a single 8-pin connector and a 300 W suggested PSU. This makes the comparison somewhat unusual, pitting a mobile chip against a desktop card, but the benchmark data treats them as comparable.

Head-to-Head Benchmarks

The largest single win for the RTX 4060 Mobile comes in Geekbench OpenCL, where it scores 89,420 versus 28,850 for the RX 6600, a massive 209.9% advantage. This is the kind of delta that suggests memory bandwidth, driver optimizations, and shader count all compound in NVIDIA's favor for compute-heavy OpenCL workloads. The RX 6600's score of 28,850 is less than a third of the NVIDIA result, and it is the clearest sign that the Ada Lovelace architecture excels in general-purpose compute.

Geekbench Vulkan shows a narrower but still decisive NVIDIA lead: 89,569 versus 67,623, a 32.5% gap. This indicates that in modern Vulkan gaming and compute scenarios, the RTX 4060 Mobile holds a substantial edge, though not as extreme as OpenCL. DirectX 12 testing via Passmark reinforces this trend, with the RTX 4060 Mobile scoring 73 versus 51, a 43.1% delta. DirectX 11 shows only a 3.3% difference (157 versus 152), suggesting that the two GPUs are nearly identical in legacy DX11 titles. DirectX 10 and DirectX 9 favor NVIDIA by 12.6% and 9.6%, respectively (107 versus 95, and 216 versus 197).

The Passmark G3D test, which aggregates overall 3D graphics performance, gives the RTX 4060 Mobile a 15.7% win (17,469 versus 15,096). GPU compute via Passmark shows a modest 4% edge for NVIDIA (6,816 versus 6,554). The single AMD victory is in Passmark G2D, the 2D graphics test, where the RX 6600 scores 889 versus 730, a 17.9% delta in AMD's favor. This is the only test where the RX 6600 leads, and it is notable because the AMD card has a higher pixel rate (159.4 GPixel/s versus 90.72 GPixel/s) and more ROPs (64 versus 48), which likely explains its 2D superiority.

The win count is 8 for NVIDIA and 1 for AMD, but the deltas tell a more nuanced story. The NVIDIA lead is enormous in OpenCL and substantial in Vulkan and DX12, but nearly negligible in DX11 and GPU compute. The RX 6600's 2D win is its only bright spot, and it is a narrow one in absolute terms.

FAQ

Q: Which GPU has the higher average benchmark score?

A: The NVIDIA GeForce RTX 4060 Mobile has an average benchmark score of 22,729, compared to 19,036 for the AMD Radeon RX 6600. This places the RTX 4060 Mobile in the 67th percentile of all GPUs, while the RX 6600 sits at the 63rd percentile.

Q: Why does the RTX 4060 Mobile win Geekbench OpenCL by such a large margin?

A: The RTX 4060 Mobile scores 89,420 in Geekbench OpenCL versus 28,850 for the RX 6600, a 209.9% delta. The NVIDIA card has 3072 shading units versus 1792, plus 96 tensor cores that the RX 6600 does not have, and higher memory bandwidth at 256.0 GB/s versus 224.0 GB/s. These architectural advantages compound in compute-heavy OpenCL workloads.

Q: Is there any test where the AMD RX 6600 beats the RTX 4060 Mobile?

A: Yes, in Passmark G2D (2D graphics), the RX 6600 scores 889 versus 730, a 17.9% advantage. This is the only head-to-head test the AMD card wins out of nine comparisons. The RX 6600 has a higher pixel rate at 159.4 GPixel/s and more ROPs (64 versus 48), which likely drives its 2D performance.

Q: How does the RTX 4060 Mobile compare to its nearest rivals?

A: The RTX 4060 Mobile is 0.7% below the RTX 2080, 1.3% below the Intel Arc B580, 1.3% above the RTX 5060 Mobile, and 0.8% above the RX 7700 XT. This places it in a competitive mid-to-high range tier, roughly on par with last generation's high-end desktop cards.

Q: What are the power and form factor differences?

A: The RTX 4060 Mobile is rated at 115 W TDP, is an IGP with no power connectors, and has a slot width of "IGP", meaning it is designed for laptops. The RX 6600 has a 132 W TDP, is a dual-slot desktop card requiring a single 8-pin power connector, and a 300 W suggested PSU. The RX 6600 has physical dimensions of 190 mm length, 110 mm height, and 40 mm width.

Q: Which GPU has a longer production life ahead?

A: The RTX 4060 Mobile has a production status of "Active" and was released on 2023-01-02, while the RX 6600 is "End-of-life" and was released on 2021-10-12. The RX 6600's predecessor is "Navi" and its successor is "Navi III", whereas the RTX 4060 Mobile's predecessor is "GeForce 30 Mobile" and its successor is "GeForce 50 Mobile". This indicates NVIDIA's product line is still being actively supported.

Where Each One Wins

The RTX 4060 Mobile is the clear winner for compute-intensive workloads. Its Geekbench OpenCL score of 89,420 versus 28,850 is the most lopsided result in the comparison, making it the preferred choice for OpenCL-based applications, such as certain physics simulations, video encoding, and general-purpose GPU computing. The Vulkan advantage of 32.5% (89,569 versus 67,623) also makes it the better pick for modern Vulkan games and Vulkan-based compute libraries. DirectX 12 performance, with a 43.1% delta (73 versus 51), further cements its position for current-generation game engines that rely heavily on DX12 features like mesh shaders and variable rate shading.

For gamers using DX11 or older APIs, the gap narrows considerably. The RTX 4060 Mobile leads DX11 by only 3.3% (157 versus 152) and DX9 by 9.6% (216 versus 197), so users with legacy game libraries will see nearly identical performance from either card. However, the RTX 4060 Mobile still wins these tests, so there is no scenario where the RX 6600 is preferable for 3D gaming based on the data.

The RX 6600's only win is in 2D graphics, where its 17.9% G2D advantage (889 versus 730) suggests it handles desktop compositing, 2D rendering, and possibly multi-monitor setups with higher responsiveness. The RX 6600 also has a higher texture rate at 279.0 GTexel/s versus 181.4 GTexel/s, and more TMUs (112 versus 96), which could benefit certain texture-heavy workloads that do not show up in the benchmark suite. Its higher boost clock of 2491 MHz versus 1890 MHz may also help in single-threaded or latency-sensitive tasks, though the Passmark data does not directly capture this.

The RTX 4060 Mobile is the better all-around choice for anyone running modern 3D applications, compute workloads, or any combination of the two. The RX 6600 is only preferable for users whose primary workload is 2D rendering or who specifically need a desktop card with a higher pixel rate and are willing to accept lower compute scores.

Specification Differences

The two GPUs differ across every core specification category:

• Process node: The RTX 4060 Mobile uses 5 nm, while the RX 6600 uses 7 nm.
• Transistors: The RTX 4060 Mobile has 18,900 million transistors versus 11,060 million for the RX 6600.
• Die size: The RTX 4060 Mobile is 159 mm², the RX 6600 is 237 mm².
• Transistor density: The RTX 4060 Mobile is 118.9M / mm², the RX 6600 is 46.7M / mm².
• Base clock: The RTX 4060 Mobile runs at 1545 MHz, the RX 6600 at 1626 MHz.
• Boost clock: The RTX 4060 Mobile boosts to 1890 MHz, the RX 6600 to 2491 MHz.
• Game clock: The RX 6600 has a game clock of 2044 MHz; the RTX 4060 Mobile has no game clock listed.
• Memory clock: The RTX 4060 Mobile uses 2000 MHz (16 Gbps effective), the RX 6600 uses 1750 MHz (14 Gbps effective).
• Memory bandwidth: The RTX 4060 Mobile delivers 256.0 GB/s, the RX 6600 delivers 224.0 GB/s.
• Shading units: 3072 for the RTX 4060 Mobile, 1792 for the RX 6600.
• TMUs: 96 for the RTX 4060 Mobile, 112 for the RX 6600.
• ROPs: 48 for the RTX 4060 Mobile, 64 for the RX 6600.
• RT cores: 24 for the RTX 4060 Mobile, 28 for the RX 6600.
• Tensor cores: The RTX 4060 Mobile has 96; the RX 6600 has none.
• Pixel rate: The RTX 4060 Mobile is 90.72 GPixel/s, the RX 6600 is 159.4 GPixel/s.
• Texture rate: The RTX 4060 Mobile is 181.4 GTexel/s, the RX 6600 is 279.0 GTexel/s.
• FP32: The RTX 4060 Mobile is 11.61 TFLOPS, the RX 6600 is 8.928 TFLOPS.
• FP16: The RTX 4060 Mobile is 11.61 TFLOPS (1:1), the RX 6600 is 17.86 TFLOPS (2:1).
• TDP: The RTX 4060 Mobile is 115 W, the RX 6600 is 132 W.
• Slot width: The RTX 4060 Mobile is IGP, the RX 6600 is dual-slot.
• Power connectors: The RTX 4060 Mobile has none, the RX 6600 has one 8-pin.
• Suggested PSU: The RX 6600 requires 300 W; the RTX 4060 Mobile has no listed PSU requirement.
• Display outputs: The RTX 4060 Mobile has "Portable Device Dependent", the RX 6600 has 1x HDMI 2.1 and 3x DisplayPort 1.4a.
• Dimensions: The RX 6600 is 190 mm x 110 mm x 40 mm; the RTX 4060 Mobile has no listed dimensions.
• Release date: The RTX 4060 Mobile launched on 2023-01-02, the RX 6600 on 2021-10-12.
• Production status: The RTX 4060 Mobile is Active, the RX 6600 is End-of-life.

The memory capacity (8 GB GDDR6) and bus width (128 bit) are identical, as are the API versions (DirectX 12 Ultimate, OpenGL 4.6, Vulkan 1.4). The RX 6600 has a listed launch MSRP of 329 USD, while the RTX 4060 Mobile has no launch MSRP in the database.