AMD Radeon RX 6750 XT vs AMD Radeon RX 7800M Comparison

The AMD Radeon RX 7800M and AMD Radeon RX 6750 XT represent two distinct generations of AMD graphics, with the 7800M built on the RDNA 3.0 architecture for mobile platforms and the 6750 XT on the older RDNA 2.0 design for desktop systems. The benchmark data reveals a fascinating split, where the newer mobile part dominates in modern DirectX 12 and compute workloads, while the older desktop card retains advantages in legacy DirectX tests and raw rasterization scores. This comparison pits a 5 nm mobile IGP against a 7 nm dual-slot desktop card, with each winning in specific areas that matter differently depending on the use case.

Head-to-Head Benchmarks

The most dramatic victory for the AMD Radeon RX 7800M comes in the Geekbench OpenCL test, where it scores 120,778 against the RX 6750 XT’s 16,360. That represents a staggering 638.3% advantage, indicating that the RDNA 3.0 architecture’s compute capabilities are in a completely different league for general-purpose GPU workloads. The 7800M also wins decisively in Geekbench Vulkan with a score of 126,668 versus 98,089, a 29.1% lead that shows strong performance in modern graphics APIs.

In 3DMark Steel Nomad DX12, the 7800M again takes the win with 2,994 points against 2,548 for the 6750 XT, a 17.5% margin. This is a key result for modern gaming, as it reflects DirectX 12 performance in current titles. The 7800M also wins in Passmark DirectX 12 with a score of 89 versus 80, an 11.3% advantage, reinforcing its strength in the latest API generation.

However, the RX 6750 XT fights back in legacy and synthetic benchmarks. In Passmark DirectX 9, the 6750 XT scores 263 against the 7800M’s 174, a 33.8% lead. The older card also wins Passmark DirectX 10 with 125 versus 99, a 20.8% margin, and edges out a narrow victory in DirectX 11 with 180 versus 176, a 2.2% difference. The 6750 XT further dominates in Passmark G3D with 20,700 points versus 17,613, a 14.9% advantage, and wins Passmark G2D with 972 versus 892, an 8.2% lead. In Passmark GPU Compute, the 6750 XT takes a slim 2.2% victory with 9,550 versus 9,342.

Overall, the RX 6750 XT wins six of the ten head-to-head benchmarks, but the RX 7800M wins the four that matter most for modern workloads. The average benchmark score tells a similar story: the 7800M averages 27,883 while the 6750 XT averages 26,011. The 7800M also holds a higher percentile rank among all GPUs at 73 versus 71 for the 6750 XT.

Architecture Differences

The architectural gap between these two cards is substantial and explains the benchmark results. The RX 7800M uses the Navi 32 chip built on TSMC’s 5 nm process, while the RX 6750 XT uses the Navi 22 chip on TSMC’s 7 nm node. This process advantage allows the 7800M to pack 28,100 million transistors into a 346 mm² die, giving a transistor density of 81.2 million per mm². The 6750 XT, by contrast, has 17,200 million transistors on a 335 mm² die, with a density of 51.3 million per mm².

The 7800M runs on RDNA 3.0 architecture with the codename Wheat Nas, while the 6750 XT uses RDNA 2.0. This generational leap brings a significant increase in shading units: the 7800M has 3,840 shading units, 240 TMUs, and 96 ROPs, compared to the 6750 XT’s 2,560 shading units, 160 TMUs, and 64 ROPs. The 7800M also has 60 ray tracing cores versus 40 on the 6750 XT, which contributes to its modern API performance.

Memory configurations are identical in capacity and type: both have 12 GB of GDDR6 on a 192-bit bus with 432.0 GB/s of bandwidth. Both run memory at 2250 MHz with 18 Gbps effective speed. However, the 7800M achieves this with a base clock of 1295 MHz and boost clock of 2335 MHz, while the 6750 XT runs much higher clocks at 2150 MHz base and 2600 MHz boost. The 7800M has a game clock of 2145 MHz versus 2495 MHz for the 6750 XT.

The compute output tells a different story. The 7800M delivers 35.87 TFLOPS of FP32 performance, while the 6750 XT manages only 13.31 TFLOPS. Interestingly, the 7800M offers FP16 at the same 35.87 TFLOPS ratio of 1:1, while the 6750 XT achieves 26.62 TFLOPS FP16 with a 2:1 ratio. The 7800M also has higher pixel and texture rates: 224.2 GPixel/s and 560.4 GTexel/s versus 166.4 GPixel/s and 416.0 GTexel/s for the 6750 XT.

Power and physical design differ dramatically. The 7800M is an IGP with no power connectors and a 180 W TDP, while the 6750 XT is a dual-slot card needing 1x 6-pin and 1x 8-pin connectors with a 250 W TDP and a recommended 600 W power supply. The 6750 XT measures 267 mm in length, 110 mm in height, and 40 mm in width. The 7800M has portable-device-dependent display outputs, while the 6750 XT offers 1x HDMI 2.1 and 3x DisplayPort 1.4a.

Where Each One Wins

The RX 7800M is the clear winner for modern DirectX 12 gaming and compute-heavy workloads. Its 17.5% lead in 3DMark Steel Nomad DX12 and 11.3% advantage in Passmark DirectX 12 make it the better choice for current and upcoming games that use the latest API features. The 638.3% blowout in Geekbench OpenCL and 29.1% lead in Geekbench Vulkan indicate it is vastly superior for GPU compute tasks like rendering, machine learning, and other parallel processing workloads. The 7800M’s higher transistor density and 60 ray tracing cores give it a forward-looking edge.

The RX 6750 XT wins in legacy DirectX performance, which matters for older games and applications. Its 33.8% lead in Passmark DirectX 9 and 20.8% lead in DirectX 10 show it handles older titles with better efficiency, likely due to its higher clock speeds. The 6750 XT also wins Passmark G3D with a 14.9% margin, which is a general 3D graphics score that some users may prioritize. Its 8.2% win in G2D and narrow 2.2% wins in DirectX 11 and GPU Compute round out a solid showing in synthetic benchmarks.

The 6750 XT’s wins in Passmark G3D and G2D suggest it may have better performance in certain rasterization-heavy scenarios that don’t leverage newer API features. However, the 7800M’s higher pixel rate of 224.2 GPixel/s versus 166.4 GPixel/s and texture rate of 560.4 GTexel/s versus 416.0 GTexel/s indicate raw fill-rate advantages that aren’t reflected in those particular Passmark scores. The 6750 XT’s higher boost clock of 2600 MHz versus 2335 MHz may explain its legacy wins.

The Verdict

The data clearly favors the AMD Radeon RX 7800M for anyone prioritizing modern gaming and compute performance. Its 73rd percentile ranking versus the 6750 XT’s 71st, combined with a higher average benchmark score of 27,883 versus 26,011, makes it the stronger overall GPU. The 7800M’s 17.5% lead in 3DMark Steel Nomad DX12 is the most relevant gaming benchmark here, and its 638.3% advantage in OpenCL makes it the obvious choice for compute-heavy tasks.

The RX 6750 XT is the better pick for users heavily invested in legacy DirectX 9 and DirectX 10 titles, where it leads by 33.8% and 20.8% respectively. Its 14.9% win in Passmark G3D also suggests it may be preferable for certain older 3D applications. However, these wins come in less relevant workloads as the industry moves toward DirectX 12 and Vulkan.

For a desktop user, the 6750 XT has the advantage of being a standard dual-slot card with fixed display outputs, while the 7800M is an IGP with portable-device-dependent outputs. The 6750 XT also has a launch MSRP of 549 USD. But in terms of raw performance and future-proofing, the 7800M’s architecture advantages are decisive. The 6750 XT is end-of-life, while the 7800M remains in active production.

FAQ

Q: Which GPU has better DirectX 12 performance?

A: The AMD Radeon RX 7800M wins in DirectX 12 tests, scoring 2,994 in 3DMark Steel Nomad DX12 versus 2,548 for the RX 6750 XT, a 17.5% advantage. It also leads in Passmark DirectX 12 with 89 versus 80, an 11.3% margin.

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

A: The RX 7800M is vastly superior in compute, with a 638.3% lead in Geekbench OpenCL (120,778 versus 16,360) and a 29.1% lead in Geekbench Vulkan (126,668 versus 98,089). Its FP32 output is 35.87 TFLOPS versus 13.31 TFLOPS for the 6750 XT.

Q: Does the RX 6750 XT win any benchmarks?

A: Yes, the RX 6750 XT wins six of ten head-to-head tests, including Passmark DirectX 9 (263 versus 174, a 33.8% lead), DirectX 10 (125 versus 99, a 20.8% lead), DirectX 11 (180 versus 176), Passmark G3D (20,700 versus 17,613), Passmark G2D (972 versus 892), and Passmark GPU Compute (9,550 versus 9,342).

Q: What are the memory specifications of each card?

A: Both cards have identical memory: 12 GB of GDDR6 on a 192-bit bus with 432.0 GB/s bandwidth and 2250 MHz memory clock at 18 Gbps effective speed.

Q: Which card is more power-efficient?

A: The RX 7800M has a TDP of 180 W and no power connectors, while the RX 6750 XT has a 250 W TDP requiring 1x 6-pin and 1x 8-pin connectors. The 7800M achieves higher performance with lower power draw.

Q: What is the production status of each GPU?

A: The AMD Radeon RX 7800M is listed as Active in production, while the AMD Radeon RX 6750 XT is marked as End-of-life.