AMD Radeon RX 6600 LE vs NVIDIA GeForce RTX 5070 Ti Comparison

Head-to-Head Benchmarks

The database records two direct benchmark comparisons between the AMD Radeon RX 6600 LE and the NVIDIA GeForce RTX 5070 Ti, and the results are decisive in favor of the NVIDIA card. In Geekbench OpenCL, the RX 6600 LE scores 69,229, while the RTX 5070 Ti reaches 212,363. That is a delta of -67.4% for the AMD card, meaning the NVIDIA GPU delivers more than three times the raw compute throughput in this API test. The margin is nearly identical in Geekbench Vulkan, where the RX 6600 LE posts 72,428 against the RTX 5070 Ti’s 225,122, a -67.8% gap.

These are not close contests. The RTX 5070 Ti wins both recorded head-to-head tests outright, and the RX 6600 LE has zero wins in the database’s direct comparison set. To put the AMD card’s standing in context, its average benchmark score across all recorded tests is 70,829, which places it at the 91st percentile of all GPUs tracked. That sounds strong, but its nearest rivals tell a more nuanced story: the AMD Radeon RX 6650M sits 1.3% ahead, while the NVIDIA RTX A3000 Mobile is 1% behind, the Quadro P6000 is 1.2% behind, and the Radeon Pro WX 8200 is 1.4% behind. The RX 6600 LE is essentially clustered with mobile and workstation parts from the previous generation, not with flagship desktop silicon.

The RTX 5070 Ti, by contrast, has an average benchmark score of 49,957, which is lower than the RX 6600 LE’s average, but that figure is dragged down by the inclusion of several Passmark tests that score very differently across architectures. Its percentile sits at 86, and its nearest rivals include the AMD Radeon RX 6900 XT at 50,951 (2% ahead of the 5070 Ti), the RX 6800 XT at 48,477 (3.1% behind), the RX Vega 64 at 50,001 (0.1% behind), and the Intel Arc A550M at 49,737 (0.4% ahead). In those terms, the 5070 Ti is competing with older AMD flagship cards, not with entry-level RDNA 2 parts.

The Geekbench OpenCL and Vulkan scores show the real story. The RTX 5070 Ti’s OpenCL result is roughly 3.07 times the RX 6600 LE’s, and its Vulkan result is about 3.11 times higher. Even accounting for different driver optimizations and API efficiencies, a threefold performance gap in both compute APIs is a massive architectural leap, not a minor generational bump. For any workload that scales with raw shader throughput, the NVIDIA card is in a different league.

Architecture Differences

The two cards come from different architectural eras with fundamentally different design priorities. The AMD Radeon RX 6600 LE uses the Navi 23 chip built on RDNA 2.0, fabricated by TSMC at 7 nm, with 11,060 million transistors on a die size of 237 mm². The transistor density is 46.7 million per square millimeter. The RTX 5070 Ti uses the GB203 chip on Blackwell 2.0, also from TSMC but at 5 nm, with 45,600 million transistors on a 378 mm² die, giving a transistor density of 120.6 million per square millimeter. That is a density advantage of roughly 2.6 times for the NVIDIA chip, which explains how it packs so much more compute into a still-manageable physical package.

Core counts differ enormously. The RX 6600 LE has 1,792 shading units, 112 texture mapping units, and 64 ROPs. The RTX 5070 Ti has 8,960 shading units, 280 TMUs, and 96 ROPs, which is 5 times the shading units and 2.5 times the TMUs. The NVIDIA card also carries 70 ray tracing cores and 280 tensor cores, while the AMD card has 28 ray accelerators and no tensor core count listed. That tensor core presence matters for AI workloads and DLSS-style upscaling, which the RDNA 2 part cannot match on hardware alone.

Memory configuration is another major split. The RX 6600 LE has 8 GB of GDDR6 on a 128-bit bus, with bandwidth of 224.0 GB/s. The RTX 5070 Ti has 16 GB of GDDR7 on a 256-bit bus, with 896.0 GB/s of bandwidth. That is exactly four times the memory bandwidth, which heavily affects high-resolution textures and compute tasks that stream large datasets. The RX 6600 LE’s memory runs at 1750 MHz (14 Gbps effective), while the RTX 5070 Ti runs at 1750 MHz base memory clock but with 28 Gbps effective, a doubling of data rate per pin.

Clock speeds tell a more subtle story. The RX 6600 LE has a base clock of 1626 MHz and a boost of 2495 MHz, with a game clock of 2045 MHz. The RTX 5070 Ti has a higher base clock of 2295 MHz but a slightly lower boost of 2452 MHz. The NVIDIA card’s lower boost relative to its base suggests it sustains high clocks across the whole chip rather than relying on a single-core boost, which is typical of large GPUs with many active units. The RX 6600 LE’s boost is 43 MHz higher than the RTX 5070 Ti’s, but that does nothing to close the gap in shader count.

Pixel and texture rates follow the core counts. The RX 6600 LE achieves 159.7 GPixel/s and 279.4 GTexel/s, while the RTX 5070 Ti reaches 235.4 GPixel/s and 686.6 GTexel/s. FP32 compute is 8.942 TFLOPS for the AMD card versus 43.94 TFLOPS for the NVIDIA card, a difference of roughly 4.9 times. FP16 performance is 17.88 TFLOPS for the RX 6600 LE (2:1 ratio), while the RTX 5070 Ti hits 43.94 TFLOPS (1:1 ratio), meaning the NVIDIA card does not halve its throughput for FP16 and instead offers full-rate execution.

Power and interface specs also diverge. The RX 6600 LE has a TDP of 132 W, a single 8-pin power connector, and a suggested PSU of 300 W. The RTX 5070 Ti has a TDP of 300 W, a single 16-pin connector, and a suggested PSU of 700 W. The bus interface is PCIe 4.0 x8 for the AMD card and PCIe 5.0 x16 for the NVIDIA card, which doubles the available bandwidth to the CPU. Both are dual-slot cards, but the RX 6600 LE measures 190 mm in length, 110 mm in height, and 40 mm in width, while the RTX 5070 Ti is 304 mm long, 137 mm tall, and 48 mm wide. The NVIDIA card is substantially larger.

Display outputs differ too: the RX 6600 LE has 1x HDMI 2.1 and 3x DisplayPort 1.4a, while the RTX 5070 Ti has 1x HDMI 2.1b and 3x DisplayPort 2.1b. Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, so the API feature set is identical on paper. The RTX 5070 Ti’s DisplayPort 2.1b allows higher bandwidth for high-refresh-rate monitors, but that is a connectivity advantage rather than a raw performance one.

FAQ

Q: Which card wins in Geekbench OpenCL?

A: The NVIDIA GeForce RTX 5070 Ti scores 212,363 versus the RX 6600 LE’s 69,229, a delta of -67.4% for the AMD card.

Q: How do their memory bandwidths compare?

A: The RX 6600 LE has 224.0 GB/s over a 128-bit bus with GDDR6, while the RTX 5070 Ti has 896.0 GB/s over a 256-bit bus with GDDR7, exactly four times the bandwidth.

Q: Do both cards support the same DirectX version?

A: Yes, both support DirectX 12 Ultimate (12_2), along with OpenGL 4.6 and Vulkan 1.4.

Q: What is the transistor count difference?

A: The RX 6600 LE has 11,060 million transistors on a 237 mm² die, while the RTX 5070 Ti has 45,600 million on a 378 mm² die.

Q: Which card has more shading units?

A: The RTX 5070 Ti has 8,960 shading units, while the RX 6600 LE has 1,792, a fivefold difference.

Q: Is the RX 6600 LE competitive with the RTX 5070 Ti in any benchmark?

A: In the database’s head-to-head results, the RX 6600 LE wins zero tests. Its nearest rivals are all within 1.4% of its average score, including the RTX A3000 Mobile and Quadro P6000, so it competes with older mobile and workstation GPUs, not the RTX 5070 Ti.

The Verdict

The data is unambiguous: the RTX 5070 Ti outperforms the RX 6600 LE by roughly threefold in both Geekbench OpenCL and Vulkan. It also offers 16 GB of GDDR7 memory with four times the bandwidth, 5 times the shading units, 2.5 times the TMUs, 280 tensor cores, and nearly 5 times the FP32 throughput. The RX 6600 LE’s strengths are its compact 190 mm length, lower 132 W TDP, and 300 W suggested PSU, which make it suitable for small form factor builds or systems with modest power supplies. It also has a higher boost clock of 2495 MHz versus 2452 MHz, but that does not compensate for the massive core and memory disparity. Anyone needing maximum compute performance, ray tracing, AI acceleration, or high-resolution texture workloads should choose the RTX 5070 Ti. Anyone building a low-power, space-constrained system with light gaming or compute needs could consider the RX 6600 LE, but only if the workload fits within its 8 GB memory and 224 GB/s bandwidth limits. The RTX 5070 Ti is the clear performance winner in every recorded metric, and the RX 6600 LE’s 91st percentile standing reflects its position among much older and less capable hardware, not a challenge to Blackwell.

Specification Differences

• Process Node: 7 nm (RX 6600 LE) vs 5 nm (RTX 5070 Ti)
• Transistors: 11,060 million vs 45,600 million
• Die Size: 237 mm² vs 378 mm²
• Transistor Density: 46.7M / mm² vs 120.6M / mm²
• Base Clock: 1626 MHz vs 2295 MHz
• Boost Clock: 2495 MHz vs 2452 MHz
• Memory Size: 8 GB vs 16 GB
• Memory Type: GDDR6 vs GDDR7
• Memory Bus Width: 128 bit vs 256 bit
• Memory Bandwidth: 224.0 GB/s vs 896.0 GB/s
• Effective Memory Clock: 14 Gbps vs 28 Gbps
• Shading Units: 1792 vs 8960
• TMUs: 112 vs 280
• ROPs: 64 vs 96
• RT Cores: 28 vs 70
• Tensor Cores: None listed vs 280
• Pixel Rate: 159.7 GPixel/s vs 235.4 GPixel/s
• Texture Rate: 279.4 GTexel/s vs 686.6 GTexel/s
• FP32: 8.942 TFLOPS vs 43.94 TFLOPS
• FP16: 17.88 TFLOPS (2:1) vs 43.94 TFLOPS (1:1)
• TDP: 132 W vs 300 W
• Power Connectors: 1x 8-pin vs 1x 16-pin
• Suggested PSU: 300 W vs 700 W
• Bus Interface: PCIe 4.0 x8 vs PCIe 5.0 x16
• Display Outputs: 1x HDMI 2.1, 3x DisplayPort 1.4a vs 1x HDMI 2.1b, 3x DisplayPort 2.1b
• Dimensions (LxHxW): 190 mm, 110 mm, 40 mm vs 304 mm, 137 mm, 48 mm
• Release Date: 2023-12-07 vs 2025-02-19
• Launch MSRP: None listed vs 749 USD (stated once as launch MSRP)