AMD Radeon RX 6750 GRE 12 GB vs NVIDIA GeForce RTX 4090 Mobile Comparison

Head-to-Head Benchmarks

The recorded head-to-head data contains a single direct comparison in Geekbench Vulkan, and it is a decisive one. The NVIDIA GeForce RTX 4090 Mobile scores 170,774 points, while the AMD Radeon RX 6750 GRE 12 GB scores 108,994 points. This translates to a delta of -36.2% for the AMD card, meaning the NVIDIA part is roughly 56.7% faster in this specific API test. The margin is substantial, placing the RTX 4090 Mobile in a different performance tier for Vulkan compute and graphics workloads.

Looking at the broader database averages, the story becomes more nuanced. The AMD Radeon RX 6750 GRE 12 GB carries an average benchmark score of 55,698 across all recorded tests, while the NVIDIA GeForce RTX 4090 Mobile averages 43,667. This is a surprising inversion. The desktop AMD card outperforms the mobile NVIDIA part by 27.6% in the aggregate database score, despite losing the single Vulkan head-to-head. The explanation lies in the test mix: the AMD card's average is built from a smaller set of high-scoring tests (3DMark Steel Nomad and Geekbench Vulkan), while the NVIDIA card's average includes several Passmark tests that drag its mean downward, such as Passmark DirectX 12 at 107, Passmark DirectX 10 at 173, and Passmark G2D at 984.

The percentile rankings reinforce this split. The AMD Radeon RX 6750 GRE 12 GB sits at the 87th percentile of all GPUs in the database, while the NVIDIA GeForce RTX 4090 Mobile sits at the 84th percentile. Despite the lower average score, the NVIDIA card's percentile is only three points lower, indicating that its distribution of scores is more varied. The AMD card's nearest rivals include the AMD Radeon 8060S at 55,757 (delta -0.1%), the NVIDIA GeForce RTX 5080 at 56,083 (delta -0.7%), the AMD Radeon Pro W5700X at 54,828 (delta +1.6%), and the NVIDIA GeForce RTX 4080 at 54,247 (delta +2.7%). These deltas show the RX 6750 GRE is tightly clustered with high-end desktop parts, within 2.7% of the RTX 4080 and within 1.6% of the Radeon Pro W5700X.

The NVIDIA GeForce RTX 4090 Mobile's nearest rivals paint a different picture. It sits near the NVIDIA Quadro M6000 at 43,301 (delta +0.8%), the NVIDIA GeForce RTX 5050 Mobile at 43,268 (delta +0.9%), the NVIDIA Quadro M6000 24 GB at 43,262 (delta +0.9%), and the NVIDIA RTX A6000 at 44,075 (delta -0.9%). The RTX 4090 Mobile's average score is within 1% of several workstation and mobile parts, indicating that its aggregate performance is not exceptional when averaged across all tests, even though its peak Vulkan score is far higher than the AMD card's.

The Verdict

The data presents two distinct performance profiles. The AMD Radeon RX 6750 GRE 12 GB is the stronger choice for consistent, high-level desktop rasterization and compute performance, as evidenced by its 87th percentile ranking and its average score of 55,698, which places it within 0.7% of the NVIDIA GeForce RTX 5080. The NVIDIA GeForce RTX 4090 Mobile, while achieving a much higher peak score in Geekbench Vulkan, suffers from a lower aggregate average of 43,667 and a lower 84th percentile ranking. Users who prioritize raw Vulkan performance in a mobile form factor should look to the RTX 4090 Mobile, as its 170,774 Vulkan score is 56.7% higher than the AMD card's 108,994. However, users who need a broad-spectrum performer across multiple benchmark types, particularly for desktop use, should favor the AMD card based on its superior average score and higher percentile. The RTX 4090 Mobile's Passmark results show weakness in legacy DirectX tests: DirectX 9 at 310, DirectX 11 at 262, DirectX 10 at 173, and DirectX 12 at 107. These low scores suggest that the mobile NVIDIA part is optimized for modern API workloads rather than backward compatibility or older game engines. The AMD card, by contrast, does not have recorded Passmark scores in the database, so its legacy performance is unknown, but its higher average suggests it handles a wider range of tests without severe drops.

Where Each One Wins

The NVIDIA GeForce RTX 4090 Mobile wins decisively in the single recorded head-to-head benchmark: Geekbench Vulkan. Its score of 170,774 versus the AMD card's 108,994 gives it a -36.2% delta advantage, meaning it is the clear victor for Vulkan-based applications, which include many modern cross-platform games and compute workloads. The RTX 4090 Mobile also shows strength in OpenCL, scoring 180,831 in Geekbench OpenCL, a test the AMD card does not have recorded. This indicates that the NVIDIA part excels in heterogeneous compute environments. Its Passmark G3D score of 27,212 and Passmark GPU Compute score of 12,347 further demonstrate its capability in general 3D rendering and compute tasks, though these are not directly comparable to the AMD card because the RX 6750 GRE lacks Passmark entries.

The AMD Radeon RX 6750 GRE 12 GB wins on aggregate metrics. Its average benchmark score of 55,698 is 27.6% higher than the RTX 4090 Mobile's 43,667. Its 3DMark Steel Nomad DX12 score of 2,402, while not directly compared to the NVIDIA card, contributes to its high average and its 87th percentile ranking. The AMD card also holds a higher percentile than the NVIDIA part, 87 versus 84, indicating that it outperforms a larger fraction of the GPU population in the database. For users running DirectX 12 workloads, the AMD card's 3DMark result suggests strong modern API performance, and its Vulkan score of 108,994, while lower than NVIDIA's, is still respectable. The AMD card's nearest rival deltas show it is competitive with top-tier desktop GPUs: it is only 0.7% behind the RTX 5080 and 2.7% ahead of the RTX 4080. This places it in the upper echelon of desktop graphics, whereas the RTX 4090 Mobile, despite its name, sits closer to workstation and mid-range mobile parts like the RTX 5050 Mobile, which is only 0.9% behind it in average score.

FAQ

Q: Which GPU has a higher average benchmark score?

A: The AMD Radeon RX 6750 GRE 12 GB has a significantly higher average benchmark score of 55,698, compared to the NVIDIA GeForce RTX 4090 Mobile's average of 43,667. This represents a 27.6% advantage for the AMD card.

Q: What is the result of the direct Vulkan comparison?

A: In Geekbench Vulkan, the NVIDIA GeForce RTX 4090 Mobile scores 170,774, while the AMD Radeon RX 6750 GRE 12 GB scores 108,994. The NVIDIA card wins with a delta of -36.2% for the AMD part, meaning it is 56.7% faster.

Q: How do their percentile rankings compare?

A: The AMD Radeon RX 6750 GRE 12 GB ranks at the 87th percentile of all GPUs, while the NVIDIA GeForce RTX 4090 Mobile ranks at the 84th percentile. The AMD card outperforms a larger fraction of the GPU population.

Q: What are the nearest rivals for each card?

A: The AMD card's nearest rivals include the AMD Radeon 8060S at 55,757 (delta -0.1%), the NVIDIA GeForce RTX 5080 at 56,083 (delta -0.7%), and the NVIDIA GeForce RTX 4080 at 54,247 (delta +2.7%). The NVIDIA card's nearest rivals include the NVIDIA RTX A6000 at 44,075 (delta -0.9%) and the NVIDIA Quadro M6000 at 43,301 (delta +0.8%).

Q: Does the RTX 4090 Mobile have any benchmark scores that the RX 6750 GRE lacks?

A: Yes, the NVIDIA GeForce RTX 4090 Mobile has recorded Geekbench OpenCL score of 180,831 and multiple Passmark scores, including DirectX 9 at 310, DirectX 10 at 173, DirectX 11 at 262, DirectX 12 at 107, G2D at 984, G3D at 27,212, and GPU Compute at 12,347. The AMD card has no such entries in the database.

Q: Which card has a higher memory bandwidth?

A: The NVIDIA GeForce RTX 4090 Mobile has a higher memory bandwidth of 576.0 GB/s, compared to the AMD Radeon RX 6750 GRE 12 GB's 432.0 GB/s. This is due to the NVIDIA card's 256-bit bus width versus the AMD card's 192-bit bus width, both using GDDR6 memory.

Architecture Differences

The two GPUs come from fundamentally different architectures and process nodes. The AMD Radeon RX 6750 GRE 12 GB uses the RDNA 2.0 architecture, built on TSMC's 7 nm process, with a die size of 335 mm² and 17,200 million transistors. Its transistor density is 51.3 million per mm². The NVIDIA GeForce RTX 4090 Mobile uses the Ada Lovelace architecture, built on TSMC's 5 nm process, with a die size of 379 mm² and 45,900 million transistors. Its transistor density is 121.1 million per mm², which is more than double the AMD card's density. This explains the NVIDIA card's higher transistor count in a similar die area.

The compute configuration differs dramatically. The AMD card has 2,560 shading units, 160 texture mapping units, 64 render output units, and 40 ray tracing cores. The NVIDIA card has 9,728 shading units, 304 texture mapping units, 112 render output units, 76 ray tracing cores, and 304 tensor cores. The NVIDIA card's shading unit count is 3.8 times higher, and it includes tensor cores, which the AMD card lacks entirely. This gives the NVIDIA card a theoretical FP32 throughput of 32.98 TFLOPS, compared to the AMD card's 13.21 TFLOPS. The NVIDIA card also achieves FP16 at the same rate as FP32 (1:1), while the AMD card's FP16 is rated at 26.43 TFLOPS (2:1), meaning it uses a packed rate.

Memory architecture also differs. Both use GDDR6 memory, but the AMD card has 12 GB on a 192-bit bus, delivering 432.0 GB/s bandwidth. The NVIDIA card has 16 GB on a 256-bit bus, delivering 576.0 GB/s bandwidth. The higher bus width and larger capacity give the NVIDIA card a clear memory advantage. Both cards support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, so API feature levels are identical. The AMD card has pixel rate of 165.2 GPixel/s and texture rate of 413.0 GTexel/s, while the NVIDIA card has pixel rate of 189.8 GPixel/s and texture rate of 515.3 GTexel/s. The NVIDIA card is ahead in both fill rates.

Specification Differences

The two cards differ in nearly every physical and electrical specification. The AMD Radeon RX 6750 GRE 12 GB is a desktop card with a dual-slot design, measuring 267 mm in length, 110 mm in height, and 40 mm in width. It requires a 250 W TDP and uses one 6-pin and one 8-pin power connector, with a suggested power supply of 600 W. It has display outputs of one HDMI 2.1 and three DisplayPort 1.4a. The NVIDIA GeForce RTX 4090 Mobile is an integrated graphics processor (IGP) for laptops, with no slot width, no dimensions recorded, no power connectors, and a TDP of only 120 W. Its display outputs are listed as portable device dependent, meaning they vary by laptop design.

Clock speeds also differ. The AMD card has a base clock of 2321 MHz, a boost clock of 2581 MHz, and a game clock of 2439 MHz. The NVIDIA card has a base clock of 1335 MHz and a boost clock of 1695 MHz, with no game clock listed. Despite the lower clocks, the NVIDIA card achieves higher performance due to its massive parallelism. Both cards have a memory clock of 2250 MHz, translating to 18 Gbps effective. The AMD card was released on 2023-10-16, while the NVIDIA card was released earlier on 2023-01-02. The AMD card has a launch MSRP of 334 USD, while the NVIDIA card has no launch MSRP recorded. The AMD card uses a PCIe 4.0 x16 interface, and the NVIDIA card also uses PCIe 4.0 x16. The AMD card's successor is Navi III, and the NVIDIA card's successor is GeForce 50 Mobile. The AMD card is in the Radeon RX 6000 series, while the NVIDIA card is in the GeForce 40-series.