NVIDIA GeForce RTX 4090 Max-Q vs NVIDIA GeForce RTX 5070 Mobile Comparison

FAQ

Q: Which GPU has the higher average benchmark score in the database?

A: The NVIDIA GeForce RTX 5070 Mobile has an average benchmark score of 29928, while the RTX 4090 Max-Q has no recorded benchmark scores in the database.

Q: How does the RTX 5070 Mobile compare to its nearest rivals?

A: The RTX 5070 Mobile is 0.1% behind the RTX 3070 Ti (29945), 0.5% ahead of the RTX 2080 Ti (29783), 0.6% behind the AMD Radeon RX 6800 (30095), and 1.7% behind the AMD Radeon RX 6700 (30433).

Q: What is the memory configuration difference between the two GPUs?

A: The RTX 4090 Max-Q uses 16 GB of GDDR6 on a 256-bit bus with 576.0 GB/s bandwidth, while the RTX 5070 Mobile uses 8 GB of GDDR7 on a 128-bit bus with 384.0 GB/s bandwidth.

Q: Which GPU has a higher transistor count and larger die size?

A: The RTX 4090 Max-Q has 45,900 million transistors on a 379 mm² die, whereas the RTX 5070 Mobile has 21,900 million transistors on a 181 mm² die.

Q: What are the TDP ratings for each GPU?

A: The RTX 4090 Max-Q is rated at 80 W, and the RTX 5070 Mobile is rated at 50 W.

Q: Which GPU supports newer PCIe technology?

A: The RTX 5070 Mobile uses PCIe 5.0 x16, while the RTX 4090 Max-Q uses PCIe 4.0 x16.

Architecture Differences

The RTX 4090 Max-Q and RTX 5070 Mobile represent two distinct architectural generations from NVIDIA. The RTX 4090 Max-Q belongs to the GeForce 40 Mobile generation, built on the Ada Lovelace architecture with the AD103 chip. The RTX 5070 Mobile belongs to the GeForce 50 Mobile generation, built on the Blackwell 2.0 architecture with the GB206 chip. Both are manufactured by TSMC on a 5 nm process node, with nearly identical transistor densities: 121.1M per mm² for the Ada Lovelace chip and 121.0M per mm² for the Blackwell 2.0 chip.

The physical silicon differences are substantial. The AD103 chip packs 45,900 million transistors across a 379 mm² die, while the GB206 chip contains 21,900 million transistors on a 181 mm² die. This means the RTX 4090 Max-Q has more than twice the transistor count and a die more than twice the size of the RTX 5070 Mobile.

The compute resource allocation differs significantly. The RTX 4090 Max-Q features 9728 shading units, 304 texture mapping units, 112 ROPs, 76 RT cores, and 304 tensor cores. The RTX 5070 Mobile has 4608 shading units, 144 TMUs, 48 ROPs, 36 RT cores, and 144 tensor cores. In every compute category, the RTX 4090 Max-Q has exactly double the resources of the RTX 5070 Mobile.

Clock speeds are similar between the two. The RTX 4090 Max-Q has a base clock of 930 MHz and a boost clock of 1455 MHz. The RTX 5070 Mobile has a base clock of 907 MHz and a boost clock of 1425 MHz. The RTX 4090 Max-Q holds a slight advantage of 23 MHz at base and 30 MHz at boost.

Memory technology marks a generational shift. The RTX 4090 Max-Q uses GDDR6 with 18 Gbps effective speed, while the RTX 5070 Mobile uses GDDR7 with 24 Gbps effective speed. Despite the faster memory type, the RTX 5070 Mobile's narrower 128-bit bus and 8 GB capacity result in lower total bandwidth compared to the RTX 4090 Max-Q's 256-bit bus and 16 GB capacity.

The bus interface also differs. The RTX 4090 Max-Q connects via PCIe 4.0 x16, while the RTX 5070 Mobile uses PCIe 5.0 x16. Both cards are designated as IGP slot width with no power connectors and portable device dependent display outputs. Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

The Verdict

The recorded data shows a clear split between these two mobile GPUs. The RTX 5070 Mobile is the only one with benchmark results in the database, and its average score of 29928 places it at the 75th percentile of all GPUs. The RTX 4090 Max-Q has no benchmark scores and sits at the 50th percentile by default.

The RTX 5070 Mobile's performance profile is tightly clustered with previous-generation desktop cards. It trails the RTX 3070 Ti by 0.1% and the AMD Radeon RX 6800 by 0.6%, while leading the RTX 2080 Ti by 0.5% and the AMD Radeon RX 6700 by 1.7%. These deltas are small, indicating the RTX 5070 Mobile delivers performance comparable to those established desktop GPUs.

The RTX 4090 Max-Q offers a much larger hardware specification on paper. Its raw compute resources, double the shading units, TMUs, ROPs, RT cores, and tensor cores, along with 16 GB of memory and 576.0 GB/s bandwidth, suggest it is designed for higher-end workloads. However, without benchmark data, the database cannot confirm how that hardware translates into real-world performance.

The TDP difference matters for mobile use cases. The RTX 4090 Max-Q draws 80 W, while the RTX 5070 Mobile draws 50 W. The RTX 5070 Mobile delivers measurable performance at a lower power envelope, which could favor it in thin-and-light laptops. The RTX 4090 Max-Q requires more power for its larger silicon.

The release timeline favors the RTX 5070 Mobile as the newer product, released in 2025-04, while the RTX 4090 Max-Q was released in 2023-01. The RTX 4090 Max-Q's predecessor is the GeForce 30 Mobile series and its successor is the GeForce 50 Mobile series, which is where the RTX 5070 Mobile sits.

For users prioritizing verified performance, the RTX 5070 Mobile is the only option with recorded scores. For users prioritizing maximum hardware resources, memory capacity, and bandwidth, the RTX 4090 Max-Q has the specification advantage.

Specification Differences

The two GPUs differ across nearly every specification category. The RTX 4090 Max-Q uses the AD103 chip with Ada Lovelace architecture, while the RTX 5070 Mobile uses the GB206 chip with Blackwell 2.0 architecture.

Transistor count: the RTX 4090 Max-Q has 45,900 million transistors versus 21,900 million for the RTX 5070 Mobile. Die size: 379 mm² versus 181 mm². Transistor density is nearly identical at 121.1M per mm² versus 121.0M per mm².

Clock speeds: the RTX 4090 Max-Q has a 930 MHz base clock and 1455 MHz boost clock. The RTX 5070 Mobile has a 907 MHz base clock and 1425 MHz boost clock. Memory clocks: 2250 MHz with 18 Gbps effective for the RTX 4090 Max-Q, versus 1500 MHz with 24 Gbps effective for the RTX 5070 Mobile.

Memory capacity: 16 GB versus 8 GB. Memory type: GDDR6 versus GDDR7. Bus width: 256 bit versus 128 bit. Bandwidth: 576.0 GB/s versus 384.0 GB/s.

Compute units: 9728 shading units versus 4608, 304 TMUs versus 144, 112 ROPs versus 48, 76 RT cores versus 36, and 304 tensor cores versus 144.

Pixel rate: 163.0 GPixel/s versus 68.40 GPixel/s. Texture rate: 442.3 GTexel/s versus 205.2 GTexel/s. FP32 and FP16 performance: 28.31 TFLOPS versus 13.13 TFLOPS, both at 1:1 ratio.

TDP: 80 W versus 50 W. Bus interface: PCIe 4.0 x16 versus PCIe 5.0 x16.

Release date: 2023-01-02 versus 2025-04-14.

Head-to-Head Benchmarks

The database contains no direct head-to-head benchmark comparisons between the RTX 4090 Max-Q and the RTX 5070 Mobile. The head-to-head benchmark array is empty, and the win counts are zero for both GPUs.

The RTX 5070 Mobile has nine individual benchmark scores recorded. In Geekbench OpenCL, it scores 122238. In Geekbench Vulkan, it scores 116960. The Passmark suite shows scores of 129 for DirectX 10, 192 for DirectX 11, 93 for DirectX 12, 214 for DirectX 9, 896 for G2D, 20355 for G3D, and 8279 for GPU compute.

The RTX 4090 Max-Q has no benchmark entries in the database. Its average benchmark score is listed as 0, and its percentile versus all GPUs is 50. This means the database cannot provide any measured performance comparison between the two.

The nearest rival data for the RTX 5070 Mobile provides context for its performance. Its average score of 29928 is nearly identical to the RTX 3070 Ti's 29945, a delta of -0.1%. It leads the RTX 2080 Ti's 29783 by 0.5%. It trails the AMD Radeon RX 6800's 30095 by 0.6% and the AMD Radeon RX 6700's 30433 by 1.7%.

These rival comparisons show the RTX 5070 Mobile sits in a competitive performance band. Its G3D score of 20355 and GPU compute score of 8279 indicate solid DirectX and compute performance, while its G2D score of 896 reflects 2D graphics capability.

Without RTX 4090 Max-Q benchmark data, the head-to-head comparison is incomplete. The specification gap suggests the RTX 4090 Max-Q should outperform the RTX 5070 Mobile in raw throughput, but the database cannot verify this with measured results.

Where Each One Wins

The RTX 5070 Mobile wins in verified performance, as it is the only GPU with recorded benchmark scores in the database. Its average score of 29928 places it at the 75th percentile of all GPUs, and its nearest rival deltas are all within 1.7%, showing consistent performance against established desktop cards.

The RTX 5070 Mobile also wins on power efficiency. Its 50 W TDP is lower than the RTX 4090 Max-Q's 80 W, and it delivers measurable performance at that power level. This makes it the more attractive option for laptops where thermal and power constraints are tight.

The RTX 5070 Mobile wins on modern connectivity with PCIe 5.0 x16 support, compared to the RTX 4090 Max-Q's PCIe 4.0 x16. It also uses newer GDDR7 memory, which operates at a higher effective speed of 24 Gbps versus 18 Gbps, even though total bandwidth is lower.

The RTX 4090 Max-Q wins on raw hardware specifications. Its 9728 shading units, 304 TMUs, 112 ROPs, 76 RT cores, and 304 tensor cores are all exactly double the RTX 5070 Mobile's counts. Its FP32 performance of 28.31 TFLOPS is more than double the RTX 5070 Mobile's 13.13 TFLOPS.

The RTX 4090 Max-Q wins on memory capacity and bandwidth. Its 16 GB GDDR6 on a 256-bit bus delivers 576.0 GB/s, which is 50% more bandwidth than the RTX 5070 Mobile's 384.0 GB/s. The 8 GB capacity difference is substantial for workloads that exceed 8 GB of video memory.

The RTX 4090 Max-Q wins on pixel and texture throughput. Its pixel rate of 163.0 GPixel/s is 2.4 times the RTX 5070 Mobile's 68.40 GPixel/s, and its texture rate of 442.3 GTexel/s is 2.2 times the RTX 5070 Mobile's 205.2 GTexel/s.

The RTX 4090 Max-Q wins on transistor and die resources. Its 45,900 million transistors and 379 mm² die provide a larger foundation for compute tasks, even though both chips use the same 5 nm process node from TSMC.

For users who need confirmed benchmark performance in a lower-power package, the RTX 5070 Mobile is the clear choice. For users who need maximum memory, bandwidth, and raw compute resources, the RTX 4090 Max-Q offers the stronger specification sheet. The database lacks RTX 4090 Max-Q benchmark scores, so its actual performance advantage remains unquantified.