AMD Radeon RX 6600S vs NVIDIA GeForce GTX TITAN BLACK Comparison

The data in the database presents a clear generational divide between the AMD Radeon RX 6600S and the NVIDIA GeForce GTX TITAN BLACK. While the TITAN BLACK was once a flagship desktop part, the RX 6600S, a mobile chip, consistently outperforms it across every recorded benchmark. The following analysis details where each card wins, the architectural reasons behind the performance gap, and which user should consider each part based strictly on the recorded measurements.

Head-to-Head Benchmarks

The AMD Radeon RX 6600S wins every single head-to-head comparison recorded in the database, taking all 8 benchmark tests. The margin of victory is not uniform, however. The largest gap appears in the Geekbench OpenCL test, where the RX 6600S scores 66,435 against the TITAN BLACK's 27,218. That is a 144.1% difference, making this the most lopsided result in the entire comparison. This suggests a massive advantage in general compute workloads that leverage OpenCL.

DirectX 10 and DirectX 12 results also show significant gaps. In the Passmark DirectX 10 test, the RX 6600S scores 81 versus 47, a 72.3% lead. In DirectX 12, the RX 6600S scores 56 against 34, a 64.7% advantage. These are not small margins; they indicate that the modern architecture handles newer API workloads far more efficiently than the older Kepler design.

The gap narrows somewhat in other tests. In the Passmark DirectX 11 test, the RX 6600S scores 105 versus 73, a 43.8% lead. The DirectX 9 test shows a 32.3% advantage, with scores of 176 against 133. The smallest margin is in the Passmark G2D test, where the RX 6600S scores 647 against 595, an 8.7% difference. This is the only test where the two cards are relatively close, suggesting that 2D desktop composition tasks are not heavily dependent on the architectural improvements that benefit 3D and compute workloads.

The overall 3D performance picture is clear. In the Passmark G3D test, the RX 6600S scores 12,649 against 9,184, a 37.7% lead. The compute-focused Passmark GPU Compute test shows the RX 6600S at 4,879 against 3,726, a 30.9% advantage. When averaged across all recorded benchmarks, the RX 6600S holds an average score of 10,629, placing it in the 49th percentile of all GPUs. The TITAN BLACK, by contrast, has an average score of 9,474 and sits in the 46th percentile. The RX 6600S also compares favorably to its own nearest rivals, sitting 0.4% above the Radeon R9 M275X and 1.4% above the Radeon RX 550X, while the TITAN BLACK sits 1.7% above the Radeon R7 M380 and 0.2% above the GTX 760.

Architecture Differences

The two cards come from entirely different architectural eras. The RX 6600S uses the Navi 23 chip built on the RDNA 2.0 architecture, fabricated on a 7 nm process at TSMC. The TITAN BLACK uses the GK110B chip on the Kepler architecture, built on a 28 nm process, also at TSMC. The process node difference is stark: 7 nm versus 28 nm. This explains a major portion of the efficiency and performance gap.

The transistor counts reflect the density advantage of the newer process. The RX 6600S packs 11,060 million transistors into a die size of 237 mm², giving it a transistor density of 46.7 million per square millimeter. The TITAN BLACK contains 7,080 million transistors on a much larger die of 561 mm², resulting in a density of only 12.6 million per square millimeter. The RX 6600S achieves higher performance with a smaller physical die and far fewer watts.

Clock speeds also differ substantially. The RX 6600S has a base clock of 1700 MHz and a boost clock of 2000 MHz, with a game clock of 1881 MHz. The TITAN BLACK runs at a base of 889 MHz and a boost of 980 MHz. The raw clock advantage of the RX 6600S is significant, and it compounds with the architectural efficiency of RDNA 2.0.

Memory configurations differ in capacity and bandwidth. The RX 6600S has 4 GB of GDDR6 memory on a 128 bit bus, delivering 224.0 GB/s of bandwidth. The TITAN BLACK has 6 GB of GDDR5 memory on a 384 bit bus, delivering 336.0 GB/s. The TITAN BLACK has more memory and higher bandwidth, but the RX 6600S still wins all benchmark tests. This indicates that the newer memory technology and higher effective speed of the GDDR6, running at 14 Gbps effective versus the TITAN BLACK's 7 Gbps effective, helps close the bandwidth gap despite the narrower bus.

Feature support shows the generational divide clearly. The RX 6600S supports DirectX 12 Ultimate (12_2) and Vulkan 1.4, while the TITAN BLACK supports DirectX 12 (11_1) and Vulkan 1.2.175. The RX 6600S also includes 28 ray tracing cores, a feature entirely absent from the TITAN BLACK. The TITAN BLACK has no RT cores and no tensor cores, and its FP16 performance is not recorded, while the RX 6600S delivers 14.34 TFLOPS of FP16 (2:1 ratio). The RX 6600S also has a higher pixel rate at 128.0 GPixel/s versus 58.80 GPixel/s, though the TITAN BLACK has a slightly higher texture rate at 235.2 GTexel/s versus 224.0 GTexel/s.

Where Each One Wins

The RX 6600S wins everywhere in the recorded data, but the nature of the wins varies. For compute-heavy workloads, particularly OpenCL, the RX 6600S is in a different league. The 144.1% lead in Geekbench OpenCL suggests that anyone running GPU-accelerated compute tasks that rely on OpenCL should strongly prefer the RX 6600S. The Passmark GPU Compute test confirms this trend with a 30.9% lead.

For gaming, the RX 6600S is also the clear winner. The DirectX 11 and DirectX 9 tests show leads of 43.8% and 32.3% respectively, which are substantial for real-world gaming performance in those APIs. The DirectX 12 test shows a 64.7% lead, indicating that the RX 6600S handles modern API workloads much better. The 37.7% lead in the G3D test reinforces that the RX 6600S is simply faster across the board for 3D rendering.

The TITAN BLACK does have one area where it is not completely outclassed: 2D performance. The G2D test shows only an 8.7% difference, meaning the TITAN BLACK is relatively competitive for basic desktop tasks. However, even here, it loses. The TITAN BLACK also has more memory (6 GB versus 4 GB) and higher memory bandwidth (336.0 GB/s versus 224.0 GB/s), which could theoretically benefit certain workloads that require large data sets, but the benchmark data does not show any test where this translates into a win.

The Verdict

The verdict is straightforward based on the data. The AMD Radeon RX 6600S is the superior card in every recorded benchmark. It wins all 8 head-to-head tests, holds a higher average benchmark score of 10,629 versus 9,474, and sits in a higher percentile. The RX 6600S also does this while consuming far less power, with a TDP of 80 W against the TITAN BLACK's 250 W.

The RX 6600S is the better choice for anyone building a system where performance per watt matters, which is all systems given the data. It offers better DirectX 12 support, includes ray tracing cores, and delivers over double the FP32 performance at 7.168 TFLOPS versus 5.645 TFLOPS. The TITAN BLACK's only advantages are its larger memory pool and higher bandwidth, but these do not translate into any benchmark victory.

The TITAN BLACK is an end-of-life product from the GeForce 700 series, released in 2014, with a launch MSRP of 999 USD. It was succeeded by the GeForce 900 series. The RX 6600S is also end-of-life, but it comes from the Radeon RX 6000 series, released in 2022. For anyone choosing between these two today, the RX 6600S is the only rational pick based on the measurements.

FAQ

Q: Which card has a higher average benchmark score?

A: The AMD Radeon RX 6600S has an average benchmark score of 10,629, while the NVIDIA GeForce GTX TITAN BLACK has an average score of 9,474.

Q: How large is the performance gap in the Geekbench OpenCL test?

A: The RX 6600S scores 66,435 against the TITAN BLACK's 27,218, a 144.1% difference in favor of the RX 6600S.

Q: Does the TITAN BLACK win any benchmark tests?

A: No. The RX 6600S wins all 8 recorded head-to-head benchmark tests. The closest result is the Passmark G2D test, where the RX 6600S leads by 8.7%.

Q: Which card has more memory and bandwidth?

A: The TITAN BLACK has 6 GB of GDDR5 memory on a 384 bit bus with 336.0 GB/s of bandwidth. The RX 6600S has 4 GB of GDDR6 on a 128 bit bus with 224.0 GB/s of bandwidth.

Q: What are the process node differences?

A: The RX 6600S is built on TSMC's 7 nm process, while the TITAN BLACK is built on TSMC's 28 nm process.

Q: Does the RX 6600S support ray tracing?

A: Yes, the RX 6600S includes 28 ray tracing cores. The TITAN BLACK has no ray tracing cores.

Specification Differences

The two cards differ in nearly every core specification. The RX 6600S uses the Navi 23 chip on RDNA 2.0, while the TITAN BLACK uses the GK110B chip on Kepler. The process nodes are 7 nm versus 28 nm. The RX 6600S has 11,060 million transistors on a 237 mm² die, while the TITAN BLACK has 7,080 million on a 561 mm² die. Transistor density is 46.7M per mm² versus 12.6M per mm².

Clock speeds differ: the RX 6600S runs at a base of 1700 MHz and boost of 2000 MHz, with a game clock of 1881 MHz. The TITAN BLACK runs at 889 MHz base and 980 MHz boost. Memory speeds are 14 Gbps effective for the RX 6600S versus 7 Gbps effective for the TITAN BLACK. The RX 6600S has 4 GB of GDDR6, the TITAN BLACK has 6 GB of GDDR5. Bus widths are 128 bit versus 384 bit, with bandwidths of 224.0 GB/s versus 336.0 GB/s.

The RX 6600S has 1792 shading units, 112 TMUs, and 64 ROPs, plus 28 RT cores. The TITAN BLACK has 2880 shading units, 240 TMUs, and 48 ROPs, with no RT cores. Pixel rates are 128.0 GPixel/s versus 58.80 GPixel/s. Texture rates are 224.0 GTexel/s versus 235.2 GTexel/s. FP32 performance is 7.168 TFLOPS versus 5.645 TFLOPS. The RX 6600S has 14.34 TFLOPS of FP16 (2:1), while the TITAN BLACK has no recorded FP16.

Power and physical specifications also differ. The RX 6600S has a TDP of 80 W, is an IGP slot width, and has no power connectors. The TITAN BLACK has a TDP of 250 W, is dual-slot, requires a 1x 6-pin plus 1x 8-pin power connection, and a suggested PSU of 600 W. The TITAN BLACK is 267 mm long, 111 mm high, and 38 mm wide. The RX 6600S has no recorded dimensions. The RX 6600S uses a PCIe 4.0 x8 interface, while the TITAN BLACK uses PCIe 3.0 x16. The RX 6600S supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The TITAN BLACK supports DirectX 12 (11_1), OpenGL 4.6, and Vulkan 1.2.175. The RX 6600S has portable device dependent display outputs, while the TITAN BLACK has 2x DVI, 1x HDMI 1.4a, and 1x DisplayPort 1.2.