NVIDIA GeForce RTX 5070 Mobile vs NVIDIA GeForce RTX 5080 Comparison

Head-to-Head Benchmarks

The recorded data shows a decisive sweep in the head-to-head comparisons. The NVIDIA GeForce RTX 5080 wins all nine benchmark tests, with no single test favoring the RTX 5070 Mobile. The most substantial margin appears in the Passmark GPU compute test, where the RTX 5080 scores 21,789 against the RTX 5070 Mobile's 8,279, a delta of -62% for the mobile part. That is the largest percentage gap in the entire dataset.

The Geekbench Vulkan result is nearly as lopsided. The RTX 5080 posts 255,450, while the RTX 5070 Mobile records 116,960, a -54.2% difference. This indicates a massive advantage in modern graphics API workloads. Geekbench OpenCL shows a similar pattern: 235,901 for the RTX 5080 versus 122,238 for the RTX 5070 Mobile, a -48.2% delta. The compute-oriented workloads consistently expose the largest performance separation.

The DirectX tests follow the same trend but with slightly narrower margins. Passmark DirectX 9 shows the RTX 5080 at 389 and the RTX 5070 Mobile at 214, a -45% gap. DirectX 11 delivers 324 versus 192, a -40.7% difference. DirectX 12 shows 151 versus 93, a -38.4% gap, and DirectX 10 shows 208 versus 129, a -38% difference. The 2D graphics test, Passmark G2D, is the closest contest overall: 1,415 for the RTX 5080 versus 896 for the RTX 5070 Mobile, a -36.7% delta. The Passmark G3D test, which typically reflects overall 3D rendering performance, shows 36,565 versus 20,355, a -44.3% margin.

The average benchmark score reinforces this hierarchy. The RTX 5080 averages 56,083 across its benchmark suite, while the RTX 5070 Mobile averages 29,928. That puts the desktop card roughly 87% higher on average. The RTX 5080's percentile ranking among all GPUs is 87, compared to 75 for the RTX 5070 Mobile. In every measured category, from legacy DirectX 9 to modern Vulkan, the RTX 5080 maintains a commanding lead, with the compute-heavy workloads showing the widest deltas.

Where Each One Wins

The data shows no test where the RTX 5070 Mobile comes out ahead. The RTX 5080 wins every single benchmark in the head-to-head set. That said, the two products occupy different performance tiers, and the nature of their wins matters. The RTX 5080's largest advantages are in GPU compute and Vulkan, which suggests its strength lies in parallel processing and modern API efficiency. The Passmark GPU compute score of 21,789 versus 8,279 is a 62% lead, the single biggest margin recorded. This indicates a substantial gap in raw computational throughput.

The RTX 5070 Mobile, despite losing every test, still posts respectable absolute numbers. Its Geekbench OpenCL score of 122,238 and Vulkan score of 116,960 are within range of many desktop GPUs from previous generations. The nearest rival data places the RTX 5070 Mobile at 0.1% behind the RTX 3070 Ti (29,945 average score) and 0.5% ahead of the RTX 2080 Ti (29,783). That places it in the upper tier of older flagship cards, despite its mobile configuration.

For the RTX 5080, its nearest rivals include the AMD Radeon 8060S (55,757 average score, 0.6% behind) and the AMD Radeon RX 6750 GRE 12 GB (55,698, 0.7% behind). The RTX 5080 sits 2.3% ahead of the AMD Radeon Pro W5700X (54,828) and 2.2% behind the AMD Radeon RX 9070 GRE (57,367). The RTX 5080's wins are consistent across all API types, but the compute and Vulkan results show it is particularly well-suited to workloads that leverage modern rendering pipelines and general-purpose GPU computation. The RTX 5070 Mobile, by contrast, shows its best relative performance in the 2D graphics test, where the gap narrows to 36.7%, and in DirectX 10, where the gap is 38%.

Architecture Differences

Both GPUs use the Blackwell 2.0 architecture and are manufactured by TSMC on a 5 nm process. The transistor density is nearly identical: 121.0 million per square millimeter for the RTX 5070 Mobile and 120.6 million for the RTX 5080. However, the physical scale differs greatly. The RTX 5070 Mobile uses the GB206 chip with 21,900 million transistors on a 181 mm² die. The RTX 5080 uses the GB203 chip with 45,600 million transistors on a 378 mm² die. That is more than double the transistor count and roughly double the die area.

The memory subsystems diverge sharply. The RTX 5070 Mobile has 8 GB of GDDR7 memory on a 128-bit bus, yielding 384.0 GB/s of bandwidth. The RTX 5080 doubles the capacity to 16 GB, doubles the bus width to 256 bit, and reaches 960.0 GB/s of bandwidth. The effective memory clock also differs: 24 Gbps for the mobile part versus 30 Gbps for the desktop card. The RTX 5080's memory bandwidth is 2.5 times higher, a critical factor for high-resolution textures and compute workloads.

The shader resources show a similar scaling pattern. The RTX 5070 Mobile has 4,608 shading units, 144 texture mapping units, and 48 ROPs. The RTX 5080 has 10,752 shading units, 336 TMUs, and 112 ROPs. Ray tracing cores scale from 36 to 84, and tensor cores scale from 144 to 336. The FP32 compute throughput jumps from 13.13 TFLOPS to 56.28 TFLOPS, a 4.3x increase. Pixel rate goes from 68.40 GPixel/s to 293.1 GPixel/s, and texture rate goes from 205.2 GTexel/s to 879.3 GTexel/s.

Clock speeds also differ substantially. The RTX 5070 Mobile runs at a base clock of 907 MHz and a boost of 1,425 MHz. The RTX 5080 runs at 2,295 MHz base and 2,617 MHz boost. The power envelope reflects the desktop versus mobile split: the RTX 5070 Mobile has a TDP of 50 W and uses no power connectors, while the RTX 5080 has a TDP of 360 W and requires a 16-pin connector with a suggested 750 W power supply. The RTX 5080 is dual-slot with dimensions of 304 mm length, 137 mm height, and 40 mm width, while the RTX 5070 Mobile is an IGP (integrated graphics package) with dimensions dependent on the portable device. Both support PCIe 5.0 x16, DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

FAQ

Q: Which GPU has the higher average benchmark score?

A: The RTX 5080 averages 56,083 across its benchmark suite, while the RTX 5070 Mobile averages 29,928. The RTX 5080 also ranks in the 87th percentile among all GPUs, compared to the 75th percentile for the RTX 5070 Mobile.

Q: How large is the performance gap in the Geekbench Vulkan test?

A: The RTX 5080 scores 255,450, while the RTX 5070 Mobile scores 116,960. That is a 54.2% difference in favor of the RTX 5080.

Q: What is the memory configuration difference?

A: The RTX 5070 Mobile has 8 GB of GDDR7 on a 128-bit bus with 384.0 GB/s bandwidth. The RTX 5080 has 16 GB of GDDR7 on a 256-bit bus with 960.0 GB/s bandwidth.

Q: Are both GPUs based on the same architecture?

A: Yes, both use the Blackwell 2.0 architecture and are built by TSMC on a 5 nm process. The transistor density is nearly identical at 121.0 million per mm² for the RTX 5070 Mobile and 120.6 million for the RTX 5080.

Q: Which GPU has higher clock speeds?

A: The RTX 5080 runs at a base clock of 2,295 MHz and a boost of 2,617 MHz. The RTX 5070 Mobile runs at 907 MHz base and 1,425 MHz boost.

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

A: The RTX 5070 Mobile sits 0.1% behind the RTX 3070 Ti (29,945 average score) and 0.5% ahead of the RTX 2080 Ti (29,783). The RTX 5080 sits 0.6% behind the AMD Radeon 8060S (55,757) and 2.2% behind the AMD Radeon RX 9070 GRE (57,367).

Specification Differences

The two GPUs differ in nearly every hardware specification. The chip is GB206 for the RTX 5070 Mobile and GB203 for the RTX 5080. Transistor count is 21,900 million versus 45,600 million, and die size is 181 mm² versus 378 mm². The base clock is 907 MHz versus 2,295 MHz, and the boost clock is 1,425 MHz versus 2,617 MHz. Memory size is 8 GB versus 16 GB, bus width is 128 bit versus 256 bit, and bandwidth is 384.0 GB/s versus 960.0 GB/s. Effective memory clock is 24 Gbps versus 30 Gbps.

Shading units number 4,608 versus 10,752. TMUs are 144 versus 336, and ROPs are 48 versus 112. Ray tracing cores are 36 versus 84, and tensor cores are 144 versus 336. Pixel rate is 68.40 GPixel/s versus 293.1 GPixel/s, and texture rate is 205.2 GTexel/s versus 879.3 GTexel/s. FP32 compute is 13.13 TFLOPS versus 56.28 TFLOPS. TDP is 50 W versus 360 W. The RTX 5070 Mobile has no power connectors and an IGP slot width, while the RTX 5080 uses a 16-pin connector and a dual-slot design. The RTX 5080 has dimensions of 304 mm by 137 mm by 40 mm, while the RTX 5070 Mobile has none listed. Display outputs are portable-device-dependent for the mobile part, versus 1x HDMI 2.1b and 3x DisplayPort 2.1b for the desktop card. The RTX 5080 has a launch MSRP of 999 USD.

The Verdict

The data points to a clear performance hierarchy. The RTX 5080 wins all nine head-to-head benchmarks, with margins ranging from 36.7% in the 2D graphics test to 62% in GPU compute. Its average benchmark score of 56,083 is nearly double that of the RTX 5070 Mobile. The RTX 5080 also holds a higher percentile rank at 87 versus 75. Every architectural specification favors the RTX 5080: more shading units, more ray tracing cores, more tensor cores, higher clocks, double the memory capacity, and 2.5 times the memory bandwidth.

The RTX 5070 Mobile, however, is not a weak part in absolute terms. Its average score of 29,928 places it within 0.1% of the RTX 3070 Ti and 0.5% ahead of the RTX 2080 Ti. For a mobile GPU with a 50 W TDP, that level of performance is notable. The RTX 5080, with a 360 W TDP and a dual-slot cooler, is a desktop-class component. The choice between them depends entirely on the use case. The RTX 5080 is for users who need maximum compute throughput, high-bandwidth memory, and top-tier performance across all APIs. The RTX 5070 Mobile is for portable systems where power consumption and physical size are constrained, and where the performance still lands in the upper quartile of all GPUs. The recorded data does not show any scenario where the RTX 5070 Mobile outperforms the RTX 5080.