AMD Radeon RX 6750 XT vs AMD Radeon RX 6800S Comparison

The AMD Radeon RX 6750 XT and AMD Radeon RX 6800S represent two distinct interpretations of RDNA 2.0: a full-size desktop board with a 250 W TDP versus a mobile-focused IGP with a 100 W TDP. The benchmark data shows a clear overall winner, but the single test where the 6800S prevails reveals a meaningful niche. Across 11 head-to-head tests, the RX 6750 XT secures 10 wins, while the RX 6800S takes one, yet the magnitude of that single victory is substantial.

Where Each One Wins

The RX 6750 XT dominates the conventional graphics workload spectrum. In 3DMark Steel Nomad DX12, it scores 2548 against the 6800S’s 1689, a 50.9% advantage that reflects its higher raw throughput. The desktop card’s lead extends across legacy DirectX tests: PassMark DirectX 9 shows a 31.5% gap (263 vs 200), DirectX 10 a 37.4% gap (125 vs 91), DirectX 11 a 29.5% gap (180 vs 139), and DirectX 12 a 23.1% gap (80 vs 65). These consistent margins indicate that the 6750 XT’s stronger shader and texture resources translate directly into frame-rate advantages regardless of API generation.

The 6750 XT also wins decisively in compute and general-purpose tests. PassMark G3D scores 20700 for the desktop part versus 15908 for the mobile part, a 30.1% delta. PassMark GPU Compute shows an even larger 55.4% gap (9550 vs 6144), highlighting the 6750 XT’s superior FP32 throughput of 13.31 TFLOPS versus 8.602 TFLOPS. The 6750 XT’s 12 GB GDDR6 memory on a 192-bit bus delivers 432.0 GB/s bandwidth, compared to the 6800S’s 8 GB on a 128-bit bus at 256.0 GB/s, explaining why the desktop card wins Geekbench Vulkan by 20.7% (98089 vs 81272) and Geekbench Metal by 61% (137249 vs 85256). The 2D performance also favors the desktop card, with PassMark G2D at 972 versus 732, a 32.8% difference.

The RX 6800S’s sole victory comes in Geekbench OpenCL, where it scores 73202 against the 6750 XT’s 16360, a massive 77.7% swing in the mobile card’s favor. This result is anomalous given the spec sheet: the 6800S has fewer shading units (2048 vs 2560), fewer TMUs (128 vs 160), and a lower boost clock (2100 MHz vs 2600 MHz). The OpenCL score suggests that the 6800S’s driver stack or memory access pattern for that specific workload is exceptionally well-optimized, or that the 6750 XT’s OpenCL path is severely underperforming—the 6750 XT’s own OpenCL score is lower than its Vulkan score by a factor of six, which is atypical for RDNA 2.0 parts.

The Verdict

For any user prioritizing 3D gaming, ray tracing, or general compute, the AMD Radeon RX 6750 XT is the unequivocal choice. Its 50.9% lead in 3DMark Steel Nomad DX12 and 30.1% lead in PassMark G3D mean it will deliver visibly higher frame rates in modern titles. The 12 GB memory buffer and 432.0 GB/s bandwidth also make it more suitable for high-resolution textures and multi-tasking. The desktop card’s 71st percentile ranking among all GPUs, versus the 6800S’s 69th, confirms its higher standing in the overall hierarchy.

The RX 6800S is only preferable in a narrow scenario: if a workload is entirely OpenCL-based, and the system must operate within a 100 W power envelope. The 6800S’s 77.7% OpenCL advantage is real and reproducible in the data, but it comes with compromises—8 GB memory, 256.0 GB/s bandwidth, and a 8.602 TFLOPS FP32 ceiling. The 6800S’s nearest rival list includes the NVIDIA GeForce RTX 2080 SUPER (deltaPct -0.4) and GTX 780 Ti (deltaPct -0.7), placing its average score of 24063 in a similar performance tier to those older desktop cards, but the 6750 XT sits above the RTX 3080 Mobile (deltaPct 1.1) with an average of 26011.

Given that the 6750 XT has a launch MSRP of 549 USD and the 6800S has no listed launch MSRP, the desktop card also offers a defined reference point for buyers. The data does not support choosing the 6800S for mixed workloads or gaming, as its Vulkan score (81272) trails by 20.7%, and its DirectX 12 score (65) trails by 23.1%. The 6800S is a specialist tool; the 6750 XT is a generalist that happens to excel everywhere except OpenCL.

Head-to-Head Benchmarks

The largest single margin in the entire comparison belongs to the RX 6800S in Geekbench OpenCL. The 73202 score is 77.7% higher than the 6750 XT’s 16360, which is a staggering inversion of the expected performance ratio based on compute units. This is the only test where the 6800S wins, and the margin dwarfs many of the 6750 XT’s victories, making it a statistical outlier that warrants scrutiny.

The 6750 XT’s biggest win is in Geekbench Metal, where its 137249 score beats the 6800S’s 85256 by 61%. This is followed closely by the 55.4% advantage in PassMark GPU Compute (9550 vs 6144) and the 50.9% lead in 3DMark Steel Nomad DX12 (2548 vs 1689). These three tests cover API-agnostic compute, Apple’s Metal API, and a modern DX12 benchmark, respectively, indicating that the 6750 XT’s advantage is not confined to a single driver path.

In the legacy DirectX tests, the 6750 XT’s margins are consistent but slightly smaller. PassMark DirectX 10 shows a 37.4% gap, DirectX 9 a 31.5% gap, DirectX 11 a 29.5% gap, and DirectX 12 a 23.1% gap. The narrowing delta as the API becomes more modern suggests that the 6800S’s architecture handles newer instruction sets relatively better, but it still loses every time. The PassMark G3D test (20700 vs 15908) and G2D test (972 vs 732) round out the 6750 XT’s sweep of the PassMark suite, with deltas of 30.1% and 32.8%, respectively.

Geekbench Vulkan falls in the middle of the pack: the 6750 XT wins with 98089 versus 81272, a 20.7% margin. This is the smallest win for the desktop card among the Geekbench tests, and it aligns with the expectation that the 6800S’s RDNA 2.0 implementation remains competent in modern APIs, just not competitive at the same power level.

FAQ

Q: Which GPU has a higher average benchmark score?

A: The AMD Radeon RX 6750 XT has an average benchmark score of 26011, while the AMD Radeon RX 6800S averages 24063. The 6750 XT sits at the 71st percentile among all GPUs, versus the 6800S’s 69th percentile.

Q: Is the RX 6800S better at any single graphics task?

A: Yes, in Geekbench OpenCL, the RX 6800S scores 73202 against the RX 6750 XT’s 16360, a 77.7% advantage. This is the only test out of 11 where the 6800S wins.

Q: How does the memory configuration differ, and does it affect benchmarks?

A: The RX 6750 XT has 12 GB GDDR6 on a 192-bit bus with 432.0 GB/s bandwidth, while the RX 6800S has 8 GB GDDR6 on a 128-bit bus with 256.0 GB/s bandwidth. This 176.0 GB/s difference contributes to the 6750 XT’s wins in memory-sensitive tests like Geekbench Metal (61% lead) and 3DMark (50.9% lead).

Q: What is the power consumption difference?

A: The RX 6750 XT has a TDP of 250 W, while the RX 6800S has a TDP of 100 W. The 6800S is an IGP with no power connectors, whereas the 6750 XT requires a 1x 6-pin plus 1x 8-pin connector and a 600 W suggested PSU.

Q: Which card has more compute units and higher clock speeds?

A: The RX 6750 XT has 2560 shading units, 160 TMUs, and 40 ray tracing cores, with a boost clock of 2600 MHz. The RX 6800S has 2048 shading units, 128 TMUs, and 32 ray tracing cores, with a boost clock of 2100 MHz. The 6750 XT also achieves 13.31 TFLOPS FP32 versus 8.602 TFLOPS.

Q: How do the nearest rivals compare for each card?

A: The RX 6750 XT’s closest rival is the AMD Radeon R9 M395X (deltaPct 0.5), followed by the AMD FirePro W7100 (0.6) and FirePro D700 (0.7). The RX 6800S’s closest rival is the NVIDIA GeForce RTX 2080 SUPER (deltaPct -0.4), followed by the GTX 780 Ti (-0.7) and AMD Radeon RX 9070 (0.8).

Architecture Differences

Both GPUs are built on RDNA 2.0 architecture using TSMC’s 7 nm process, but they employ different chips. The RX 6750 XT uses the Navi 22 chip with 17,200 million transistors on a 335 mm² die, resulting in a transistor density of 51.3M per mm². The RX 6800S uses the smaller Navi 23 chip with 11,060 million transistors on a 237 mm² die, yielding a lower density of 46.7M per mm². This die size difference—98 mm²—directly correlates with the 6750 XT’s higher component counts.

The compute configuration diverges significantly. The 6750 XT packs 2560 shading units, 160 TMUs, and 40 ray tracing cores, while the 6800S reduces these to 2048 shading units, 128 TMUs, and 32 ray tracing cores. Both have 64 ROPs, but the 6750 XT’s higher clock speeds—base 2150 MHz, boost 2600 MHz, game 2495 MHz—versus the 6800S’s base 1800 MHz, boost 2100 MHz, game 1975 MHz, push its pixel rate to 166.4 GPixel/s and texture rate to 416.0 GTexel/s, compared to 134.4 GPixel/s and 268.8 GTexel/s for the 6800S.

Memory architecture is another major divider. The 6750 XT features 12 GB GDDR6 on a 192-bit interface running at 2250 MHz (18 Gbps effective), achieving 432.0 GB/s bandwidth. The 6800S has 8 GB GDDR6 on a 128-bit interface at 2000 MHz (16 Gbps effective) for 256.0 GB/s. The 6750 XT also uses a PCIe 4.0 x16 interface, while the 6800S is limited to PCIe 4.0 x8, halving the bus bandwidth available for data transfers.

Physical and power characteristics are starkly opposed. The 6750 XT is a dual-slot card measuring 267 mm in length, 110 mm in height, and 40 mm in width, requiring a 250 W TDP and a 600 W suggested PSU. The 6800S is an IGP with no slot width, no power connectors, and a 100 W TDP. The 6750 XT offers 1x HDMI 2.1 and 3x DisplayPort 1.4a outputs, whereas the 6800S’s display outputs are portable device dependent. Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, but the 6750 XT’s higher memory bandwidth and compute throughput make it the stronger performer in the vast majority of benchmark scenarios.