AMD Radeon RX 6750 XT vs AMD Radeon RX 6800 Comparison

FAQ

Q: Which GPU has the higher average benchmark score?

A: The AMD Radeon RX 6800. Its average benchmark score is 30095, while the AMD Radeon RX 6750 XT averages 26011. That places the RX 6800 in the 75th percentile of all GPUs, versus the 71st percentile for the RX 6750 XT.

Q: How large is the performance gap in the most demanding DirectX 12 test?

A: In 3DMark Steel Nomad DX12, the RX 6800 scores 3188 versus 2548 for the RX 6750 XT, a 25.1% advantage. This is the largest single-test margin between the two cards.

Q: Does the RX 6750 XT win any benchmark at all?

A: Yes, exactly one. In PassMark DirectX 9, the RX 6750 XT scores 263 against 257 for the RX 6800, a 2.3% lead. Every other recorded test goes to the RX 6800.

Q: How do the two cards compare in compute workloads?

A: The RX 6800 leads in both Geekbench OpenCL and PassMark GPU Compute. In OpenCL, it scores 24508 versus 16360, a 49.8% margin, the largest of any test. In GPU Compute, it scores 10864 versus 9550, a 13.8% lead.

Q: What are the memory specifications for each card?

A: The RX 6800 has 16 GB of GDDR6 on a 256-bit bus with 512.0 GB/s bandwidth. The RX 6750 XT has 12 GB of GDDR6 on a 192-bit bus with 432.0 GB/s bandwidth.

Q: Which card has more shading units and ray tracing cores?

A: The RX 6800 has 3840 shading units and 60 ray tracing cores. The RX 6750 XT has 2560 shading units and 40 ray tracing cores.

The Verdict

The data points to one clear conclusion: the AMD Radeon RX 6800 is the stronger GPU by a substantial margin across nearly every workload class. With 10 wins out of 11 head-to-head benchmarks, an average score of 30095 versus 26011, and a 15.6% overall average score advantage, the RX 6800 is the card to choose when raw performance is the priority.

The RX 6750 XT is not without its merits. It wins the sole DirectX 9 test, features higher base and boost clocks, and consumes the same 250 W TDP as the RX 6800. For users targeting legacy DirectX 9 titles, the RX 6750 XT holds a narrow edge. However, that single win is outweighed by double-digit deficits in modern APIs, compute, and memory-bound workloads.

For gamers and professionals running DirectX 11, DirectX 12, Vulkan, or OpenCL workloads, the RX 6800 is the definitive pick. Its 49.8% lead in OpenCL and 25.1% lead in 3DMark Steel Nomad DX12 make it particularly compelling for compute-heavy tasks and modern game engines. The RX 6750 XT is only the better choice if the workload is exclusively DirectX 9 or if the user places value on a smaller physical footprint, as it is 10 mm shorter in height.

Head-to-Head Benchmarks

The RX 6800 dominates the benchmark suite, but the margins vary significantly by test. The single largest gap appears in Geekbench OpenCL, where the RX 6800 scores 24508 against 16360 for the RX 6750 XT, a 49.8% delta. This is a compute-heavy workload, and the RX 6800's larger die and higher shading unit count drive the separation.

In 3DMark Steel Nomad DX12, the RX 6800 scores 3188 versus 2548, a 25.1% advantage. This test stresses modern DirectX 12 rendering, and the RX 6800's 3840 shading units, 240 texture mapping units, and 96 ROPs deliver a clear win over the RX 6750 XT's 2560, 160, and 64 respectively.

Geekbench Vulkan shows a 17.3% lead for the RX 6800, with scores of 115107 versus 98089. The RX 6800 also wins Geekbench Metal by 11.9%, scoring 153635 against 137249. These cross-API results indicate the RX 6800's architectural headroom is consistent across graphics APIs, not just a single implementation.

PassMark results follow the same trend. DirectX 11 shows an 18.9% win for the RX 6800 (214 versus 180), DirectX 12 shows an 11.3% win (89 versus 80), and GPU Compute shows a 13.8% win (10864 versus 9550). The RX 6800 also edges out the RX 6750 XT in PassMark G3D by 6.6% (22067 versus 20700) and in G2D by 1.9% (990 versus 972).

The RX 6750 XT's only victory comes in PassMark DirectX 9, where it scores 263 against 257, a 2.3% margin. This is the narrowest win in the entire suite and is likely attributable to the RX 6750 XT's higher base clock of 2150 MHz versus 1700 MHz, which can benefit older, less parallel workloads.

The RX 6800's average benchmark score of 30095 places it just 0.5% above the NVIDIA GeForce RTX 3070 Ti and 0.6% above the RTX 5070 Mobile. The RX 6750 XT's average of 26011 sits 0.5% above the AMD Radeon R9 M395X and 1.1% above the NVIDIA GeForce RTX 3080 Ti Mobile. These rival comparisons show that the RX 6800 competes in a higher performance tier than the RX 6750 XT.

Specification Differences

The two cards differ in nearly every core specification. The RX 6800 uses the Navi 21 chip with 26,800 million transistors on a 520 mm² die. The RX 6750 XT uses the Navi 22 chip with 17,200 million transistors on a 335 mm² die. Both are built on TSMC's 7 nm process, with transistor densities of 51.5M per mm² and 51.3M per mm² respectively.

Memory configuration is a major differentiator. The RX 6800 offers 16 GB of GDDR6 on a 256-bit bus, delivering 512.0 GB/s of bandwidth. The RX 6750 XT offers 12 GB of GDDR6 on a 192-bit bus, delivering 432.0 GB/s. The RX 6800 runs memory at 2000 MHz (16 Gbps effective), while the RX 6750 XT runs at 2250 MHz (18 Gbps effective), but the wider bus gives the RX 6800 the bandwidth advantage.

Shader resources also diverge sharply. The RX 6800 has 3840 shading units, 240 TMUs, 96 ROPs, and 60 ray tracing cores. The RX 6750 XT has 2560 shading units, 160 TMUs, 64 ROPs, and 40 ray tracing cores. Peak pixel rate is 202.1 GPixel/s for the RX 6800 versus 166.4 GPixel/s for the RX 6750 XT. Texture rate is 505.2 GTexel/s versus 416.0 GTexel/s. FP32 compute is 16.17 TFLOPS versus 13.31 TFLOPS, and FP16 is 32.33 TFLOPS versus 26.62 TFLOPS.

Clock speeds favor the RX 6750 XT. Its base clock is 2150 MHz, boost 2600 MHz, and game clock 2495 MHz. The RX 6800's base is 1700 MHz, boost 2105 MHz, and game clock 1815 MHz. Despite lower clocks, the RX 6800 wins on raw throughput due to its larger execution resources.

Physical differences are minimal. Both are dual-slot cards, 267 mm long, and 40 mm wide. The RX 6800 is 120 mm tall versus 110 mm for the RX 6750 XT. Power connectors differ: the RX 6800 uses 2x 8-pin, while the RX 6750 XT uses 1x 6-pin plus 1x 8-pin. Both recommend a 600 W PSU and carry a 250 W TDP. Display outputs also differ: the RX 6800 has 1x HDMI 2.1, 2x DisplayPort 1.4a, and 1x USB Type-C, while the RX 6750 XT has 1x HDMI 2.1 and 3x DisplayPort 1.4a.

Architecture Differences

Both cards are built on AMD's RDNA 2.0 architecture and belong to the Navi II generation (RX 6000 series). They share the same 7 nm process from TSMC and identical API support: DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

The core architectural difference lies in the silicon itself. The RX 6800 uses the Navi 21 chip, which is the larger die at 520 mm² and houses 26,800 million transistors. The RX 6750 XT uses the Navi 22 chip at 335 mm² with 17,200 million transistors. This size difference translates directly into more shading units, TMUs, ROPs, and ray tracing cores for the RX 6800, as detailed above.

Memory architecture also differs. The RX 6800's 256-bit bus with 16 GB of VRAM provides a wider path to memory, enabling 512.0 GB/s bandwidth despite the lower memory clock. The RX 6750 XT's 192-bit bus with 12 GB of VRAM tops out at 432.0 GB/s, relying on a higher 18 Gbps effective memory speed to partially compensate.

The RX 6800 was released on 2020-10-27, while the RX 6750 XT arrived later on 2022-03-02. Both are end-of-life products, and both list the same predecessor (Navi) and successor (Navi III). The RX 6800's launch MSRP was 579 USD, while the RX 6750 XT's launch MSRP was 549 USD.

The game clock is a notable architectural feature. The RX 6800 has a game clock of 1815 MHz, while the RX 6750 XT's game clock is 2495 MHz. The RX 6750 XT is tuned for higher frequencies across the board, but the RX 6800's larger execution width overcomes that clock deficit in real workloads.

Where Each One Wins

The RX 6800 wins in every modern workload category recorded in the database. It is the clear choice for DirectX 12 gaming, where it leads by 25.1% in 3DMark Steel Nomad and 11.3% in PassMark DirectX 12. It also wins DirectX 11 by 18.9%, making it the better card for the vast majority of current PC games.

Compute performance strongly favors the RX 6800. Its 49.8% lead in Geekbench OpenCL and 13.8% lead in PassMark GPU Compute make it the superior option for rendering, simulation, and GPU-accelerated tasks. The 16 GB memory capacity and 512.0 GB/s bandwidth also provide more headroom for large datasets and high-resolution textures.

Vulkan and Metal users should pick the RX 6800. It leads by 17.3% in Geekbench Vulkan and 11.9% in Geekbench Metal. The PassMark G3D result, a general 3D performance metric, also goes to the RX 6800 by 6.6%.

The RX 6750 XT wins exactly one category: legacy DirectX 9 performance. Its 2.3% lead in PassMark DirectX 9 (263 versus 257) is narrow but consistent, likely due to its higher base and boost clocks. For users running older titles that rely on DirectX 9, the RX 6750 XT offers a marginal advantage.

The RX 6750 XT also has a slight physical advantage. At 110 mm tall versus 120 mm for the RX 6800, it fits into slightly smaller chassis. Its power connector requirement of 1x 6-pin plus 1x 8-pin may be more accommodating for existing power supplies, though both cards recommend a 600 W PSU.

For everything else, the RX 6800 is the decisive winner. Its 10 out of 11 benchmark wins, higher average score, and superior memory subsystem make it the stronger all-round GPU. The RX 6750 XT is only the pick for DirectX 9-focused workloads or tighter physical constraints, and even then the performance gap is small.