AMD Radeon RX 6600 LE vs NVIDIA RTX 4500 Ada Generation Comparison

Head-to-Head Benchmarks

The recorded data presents a decisive performance gap between these two GPUs. In the Geekbench OpenCL test, the NVIDIA RTX 4500 Ada Generation scores 160,786, while the AMD Radeon RX 6600 LE trails far behind at 69,229. This translates to a delta of 132.3% in favor of the NVIDIA card. The Vulkan results tell a similar story: NVIDIA scores 171,401 against AMD's 72,428, a gap of 136.7%. In both recorded benchmarks, the NVIDIA RTX 4500 Ada Generation wins outright, giving it a 2-0 sweep in head-to-head comparisons.

These are not marginal victories. The OpenCL margin alone means the NVIDIA card delivers more than twice the raw compute throughput in that workload. For the Vulkan test, the advantage grows even larger in percentage terms. The data shows that the RTX 4500 Ada Generation does not merely outperform the RX 6600 LE; it roughly doubles the AMD card's measured results across both APIs.

Context from the broader database strengthens this interpretation. The NVIDIA RTX 4500 Ada Generation sits in the 97th percentile of all GPUs, with an average benchmark score of 166,094. Its closest rivals in the database include the NVIDIA RTX A5500 at 165,217 (0.5% slower), the AMD Radeon PRO W7800 at 164,894 (0.7% slower), and the AMD Radeon Pro W6900X at 168,574 (1.5% faster). Even the NVIDIA A100 PCIe 40 GB, a data-center heavyweight, trails by 2.2% with a score of 162,504. The RTX 4500 Ada Generation is positioned among the very top of the database hierarchy.

The AMD Radeon RX 6600 LE, by contrast, sits in the 91st percentile with an average benchmark score of 70,829. Its nearest competitors are far less imposing: the NVIDIA RTX A3000 Mobile at 70,140 (1% slower), the NVIDIA Quadro P6000 at 69,986 (1.2% slower), the AMD Radeon RX 6650M at 71,768 (1.3% faster), and the AMD Radeon Pro WX 8200 at 69,870 (1.4% slower). The RX 6600 LE is a competent mid-range performer, but it operates in a completely different performance stratum than the RTX 4500 Ada Generation.

When comparing the two directly, the arithmetic is stark. The RTX 4500 Ada Generation's average benchmark score of 166,094 is roughly 2.3 times the RX 6600 LE's 70,829. Every measurement in the head-to-head section reinforces this pattern. There is no recorded workload in which the AMD card closes the gap to within a single-digit percentage.

FAQ

Q: Which GPU has the higher average benchmark score?

A: The NVIDIA RTX 4500 Ada Generation has an average benchmark score of 166,094, while the AMD Radeon RX 6600 LE averages 70,829. NVIDIA leads by more than double.

Q: How does the RTX 4500 Ada Generation compare to its nearest rivals in the database?

A: It is 0.5% faster than the NVIDIA RTX A5500 (165,217), 0.7% faster than the AMD Radeon PRO W7800 (164,894), and 2.2% faster than the NVIDIA A100 PCIe 40 GB (162,504). Only the AMD Radeon Pro W6900X (168,574) edges it out, by 1.5%.

Q: What are the recorded benchmark results for the RX 6600 LE?

A: The RX 6600 LE scores 69,229 in Geekbench OpenCL and 72,428 in Geekbench Vulkan. Its average across both is 70,829.

Q: Which card ranks higher in the overall GPU percentile distribution?

A: The RTX 4500 Ada Generation is in the 97th percentile of all GPUs, whereas the RX 6600 LE is in the 91st percentile.

Q: Does the RX 6600 LE win any head-to-head benchmark?

A: No. The data records 2 wins for the NVIDIA RTX 4500 Ada Generation and 0 wins for the AMD Radeon RX 6600 LE across the two tested workloads.

Q: How much faster is the RTX 4500 Ada Generation in Vulkan specifically?

A: NVIDIA scores 171,401 against AMD's 72,428, a delta of 136.7%. This is the larger of the two margins recorded.

Where Each One Wins (Based on Wins)

The head-to-head data awards both wins to the NVIDIA RTX 4500 Ada Generation. There is no recorded category, OpenCL or API, where the AMD card takes the lead. For workloads represented by Geekbench OpenCL, the NVIDIA card delivers 160,786, more than 2.3 times the RX 6600 LE's result. For Geekbench Vulkan, the delta reaches 136.7%, the highest single margin in the comparison.

For users specifically prioritizing Vulkan workloads, the RTX 4500 Ada Generation is the clear choice, as its Vulkan score of 171,401 is the strongest recorded number in this pairing. The RX 6600 LE's Vulkan result of 72,428 is less than half of NVIDIA's. For any task, the data points to the NVIDIA RTX 4500 Ada Generation. Its dominance in both APIs means the AMD card cannot claim a single use case where the data favors it.

It is worth noting, however, that the RX 6600 LE does hold its own within its own tier of the database. It is 1% faster than the NVIDIA Quadro P6000 (69,986) and 1.4% faster than the AMD Radeon Pro WX 8200 (69,870), so it competes effectively among more modest company. But against the RTX 4500 Ada Generation, the RX 6600 LE never records a win.

Specification Differences

The two GPUs differ on nearly every specification recorded in the database. The NVIDIA RTX 4500 Ada Generation carries 24 GB of memory, 16 GB more than the RX 6600 LE's 8 GB allocation. Both use GDDR6 memory, but NVIDIA's bus width is 192 bit versus 128 bit for AMD. Memory bandwidth is 432.0 GB/s for NVIDIA and 224.0 GB/s for AMD.

Clock speeds also diverge. The NVIDIA card has a base clock of 2070 MHz and a boost of 2580 MHz, while the AMD card has a base of 1626 MHz and a boost of 2495 MHz. The RX 6600 LE lists a game clock of 2045 MHz, a field not present for the RTX 4500 Ada Generation. Memory clocks are 2250 MHz (18 Gbps effective) for NVIDIA and 1750 MHz (14 Gbps effective) for AMD.

The physical dimensions differ: the RTX 4500 Ada Generation measures 245 mm (9.6 inches) in length and 112 mm (4.4 inches) in height, while the RX 6600 LE is 190 mm (7.5 inches) long, 110 mm (4.3 inches) high, and 40 mm (1.6 inches) wide. Power delivery differs too: the NVIDIA card uses no power connectors, whereas the AMD card requires 1x 8-pin. The suggested PSU is 550 W for NVIDIA and 300 W for AMD. NVIDIA's bus interface is PCIe 4.0 x16, AMD's is PCIe 4.0 x8. Display outputs are 4x DisplayPort 1.4a for NVIDIA, and 1x HDMI 2.1 plus 3x DisplayPort 1.4a for AMD.

Architecture Differences

The NVIDIA RTX 4500 Ada Generation is built on the AD103 chip using Ada Lovelace architecture, manufactured on a 5 nm process at TSMC. The AMD Radeon RX 6600 LE uses the Navi 23 chip with RDNA 2.0 architecture, on a 7 nm process, also at TSMC. Transistor counts are vastly different: NVIDIA packs 45,900 million transistors on a 379 mm² die (121.1M per mm²), while AMD has 11,060 million on a 237 mm² die (46.7M per mm²).

Shading units number 7680 for NVIDIA versus 1792 for AMD. Texture mapping units are 240 versus 112, and render output units are 80 versus 64. Ray tracing cores are 60 for NVIDIA and 28 for AMD. NVIDIA also includes 240 tensor cores; AMD has no tensor core field recorded. Pixel rate is 206.4 GPixel/s for NVIDIA and 159.7 GPixel/s for AMD. Texture rate is 619.2 GTexel/s versus 279.4 GTexel/s. FP32 compute is 39.63 TFLOPS for NVIDIA and 8.942 TFLOPS for AMD. FP16 differs in ratio: NVIDIA lists 39.63 TFLOPS (1:1), while AMD lists 17.88 TFLOPS (2:1).

Power consumption reflects the architectural gulf: NVIDIA's TDP is 210 W, AMD's is 132 W. Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. Release dates differ by over a year: NVIDIA launched on 2023-08-08, AMD on 2023-12-07. NVIDIA's predecessor is Workstation Ampere and successor is Blackwell PRO W, AMD's predecessor is Navi and successor is Navi III.

The 5 nm node gives NVIDIA a density advantage of 121.1M transistors per mm² versus AMD's 46.7M. This architectural investment in tensor cores, ray tracing cores, and shading units positions the RTX 4500 Ada Generation as a much larger silicon implementation than the RX 6600 LE.

The Verdict

The data is unambiguous. The NVIDIA RTX 4500 Ada Generation wins both recorded benchmarks, with deltas of 132.3% in OpenCL and 136.7% in Vulkan. Its average benchmark score of 166,094 places it in the 97th percentile, comfortably above the RX 6600 LE's 70,829 and 91st percentile.

Users who need maximum compute throughput in OpenCL or Vulkan workloads should choose the NVIDIA RTX 4500 Ada Generation. It delivers more than double the performance of the RX 6600 LE in every recorded test. Those with 24 GB memory requirements will find the NVIDIA card exclusively, as the AMD card offers 8 GB falls short of that capacity. The 432.0 GB/s bandwidth, 39.63 TFLOPS FP32 compute, and 60 ray tracing cores further reinforce NVIDIA's suitability for demanding tasks.

Users with less demanding workloads, constrained power budgets, or shorter physical space requirements might consider the RX 6600 LE. Its 132 W TDP and 300 W suggested PSU are lower than NVIDIA's 210 W and 550 W, and many users can find a place for the RX 6600 LE in the 91st percentile. The data shows the RX 6600 LE competes effectively with the NVIDIA RTX A3000 Mobile (1.1% slower) and the AMD Radeon PRO W7800 (1.2% slower), so it is a strong performer in its own tier. For users with limited space, the 190 mm length of the RX 6600 LE is shorter.

The database verdict is straightforward: the NVIDIA RTX 4500 Ada Generation is the superior GPU in this comparison, and the data supports a clear recommendation for that card. Anyone prioritizing raw performance, memory capacity, or compute density will favor NVIDIA. The RX 6600 LE remains a viable alternative only for those whose requirements fall within its lower specifications, but it cannot match the RTX 4500 Ada Generation in any recorded benchmark.