NVIDIA GB10 vs NVIDIA GeForce RTX 5070 Mobile Comparison

FAQ

Q: Which GPU has the higher average benchmark score?

A: The NVIDIA GB10 has an average benchmark score of 117393, while the NVIDIA GeForce RTX 5070 Mobile has an average score of 29928. The GB10 sits in the 95th percentile of all GPUs, whereas the RTX 5070 Mobile is in the 75th percentile.

Q: How do the two GPUs compare in Geekbench OpenCL performance?

A: The RTX 5070 Mobile scores 122238 in Geekbench OpenCL, which is 1.7% higher than the GB10's score of 120137. The RTX 5070 Mobile also wins the Geekbench Vulkan test with 116960 versus 114648, a 2% advantage.

Q: What memory configurations do the two GPUs use?

A: The GB10 uses 128 GB of LPDDR5X memory on a 256-bit bus with 273.2 GB/s bandwidth. The RTX 5070 Mobile uses 8 GB of GDDR7 memory on a 128-bit bus with 384.0 GB/s bandwidth.

Q: Which GPU has higher clock speeds?

A: The GB10 has a base clock of 1665 MHz and a boost clock of 2418 MHz. The RTX 5070 Mobile has a base clock of 907 MHz and a boost clock of 1425 MHz. The GB10's boost clock is significantly higher.

Q: What are the power consumption figures for each GPU?

A: The GB10 has a TDP of 140 W with a suggested PSU of 300 W. The RTX 5070 Mobile has a TDP of 50 W and no suggested PSU listed in the data.

Q: Which GPU has more shading units and tensor cores?

A: The GB10 has 6144 shading units and 384 tensor cores. The RTX 5070 Mobile has 4608 shading units and 144 tensor cores. The GB10 provides roughly 33% more shading units and 2.7 times the tensor cores.

Architecture Differences

Both the NVIDIA GB10 and the NVIDIA GeForce RTX 5070 Mobile are built on the Blackwell 2.0 architecture and use TSMC's 5 nm process node. The GB10 uses the GB20B chip and belongs to the Server Blackwell (Bxx) generation, while the RTX 5070 Mobile uses the GB206 chip from the GeForce 50 Mobile generation.

The die sizes differ substantially. The GB10 has a die size of 382 mm², while the RTX 5070 Mobile has a die size of 181 mm². The RTX 5070 Mobile's transistor count is listed at 21,900 million with a density of 121.0M per mm², whereas the GB10's transistor count is unknown.

Core configurations diverge significantly. The GB10 packs 6144 shading units, 384 texture mapping units, 48 ROPs, 48 RT cores, and 384 tensor cores. The RTX 5070 Mobile has 4608 shading units, 144 TMUs, 48 ROPs, 36 RT cores, and 144 tensor cores. The GB10 has 33% more shading units, 2.7 times the TMUs, 33% more RT cores, and 2.7 times the tensor cores.

Memory architecture is a major differentiator. The GB10 uses 128 GB of LPDDR5X across a 256-bit bus, delivering 273.2 GB/s bandwidth. The RTX 5070 Mobile uses 8 GB of GDDR7 across a 128-bit bus, but achieves higher bandwidth at 384.0 GB/s due to the faster 24 Gbps effective memory speed. The GB10's memory clock is 1067 MHz with 8.5 Gbps effective, while the RTX 5070 Mobile runs at 1500 MHz with 24 Gbps effective.

API support differs notably. The GB10 lists DirectX, OpenGL, and Vulkan as N/A, while the RTX 5070 Mobile supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. This indicates the GB10 is oriented toward compute workloads rather than graphics rendering.

The GB10 is an integrated graphics processor (IGP) with dimensions of 150 mm by 51 mm by 150 mm and a single HDMI output. The RTX 5070 Mobile is also an IGP but has no listed dimensions and its display outputs are marked as "Portable Device Dependent". Neither GPU uses external power connectors.

Where Each One Wins

The GB10 wins in raw compute density and throughput. Its FP32 performance of 29.71 TFLOPS is more than double the RTX 5070 Mobile's 13.13 TFLOPS. The GB10 also delivers a pixel rate of 116.1 GPixel/s versus 68.40 GPixel/s for the RTX 5070 Mobile, and a texture rate of 928.5 GTexel/s versus 205.2 GTexel/s. These figures place the GB10 well ahead for compute-heavy tasks such as scientific simulation, AI inference, and data processing.

The RTX 5070 Mobile wins in memory bandwidth efficiency and graphics API compatibility. Its 384.0 GB/s bandwidth exceeds the GB10's 273.2 GB/s, and its support for DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4 makes it suitable for gaming and graphics applications. The RTX 5070 Mobile also has a much lower TDP of 50 W, making it more suitable for portable devices with thermal constraints.

The benchmark data shows a split. The RTX 5070 Mobile takes both recorded head-to-head wins in Geekbench OpenCL and Vulkan, despite the GB10's superior theoretical compute specifications. This suggests the RTX 5070 Mobile's driver optimization and API support provide practical advantages in real-world graphics workloads.

Specification Differences

The two GPUs differ across nearly every specification category. The GB10 has a base clock of 1665 MHz and boost clock of 2418 MHz, while the RTX 5070 Mobile runs at 907 MHz base and 1425 MHz boost. The GB10's memory is 128 GB LPDDR5X on a 256-bit bus, while the RTX 5070 Mobile uses 8 GB GDDR7 on a 128-bit bus.

Shading units: 6144 for GB10 versus 4608 for RTX 5070 Mobile. TMUs: 384 versus 144. ROPs are identical at 48. RT cores: 48 versus 36. Tensor cores: 384 versus 144.

FP32 and FP16 performance are both 29.71 TFLOPS for the GB10, while the RTX 5070 Mobile delivers 13.13 TFLOPS in both. Pixel rate is 116.1 GPixel/s for the GB10 versus 68.40 GPixel/s for the RTX 5070 Mobile. Texture rate is 928.5 GTexel/s versus 205.2 GTexel/s.

TDP differs sharply: 140 W for the GB10 versus 50 W for the RTX 5070 Mobile. The GB10 has a suggested PSU of 300 W, while the RTX 5070 Mobile has none listed. Both use PCIe 5.0 x16 interfaces and have no power connectors.

The GB10 has a launch MSRP of 3,999 USD, while the RTX 5070 Mobile has no launch MSRP recorded. The GB10 was released on 2025-10-14, and the RTX 5070 Mobile on 2025-04-14. The GB10's predecessor is Server Hopper and successor is Server Rubin, while the RTX 5070 Mobile's predecessor is GeForce 40 Mobile with no successor listed.

Die size: 382 mm² for GB10 versus 181 mm² for RTX 5070 Mobile. The RTX 5070 Mobile has a transistor density of 121.0M per mm², while the GB10's density is unknown.

Head-to-Head Benchmarks

The recorded head-to-head data shows the RTX 5070 Mobile winning both available tests. In Geekbench OpenCL, the RTX 5070 Mobile scores 122238 against the GB10's 120137, a 1.7% advantage. In Geekbench Vulkan, the RTX 5070 Mobile scores 116960 versus 114648, a 2% lead.

These results contrast sharply with the theoretical compute specifications. The GB10's FP32 throughput of 29.71 TFLOPS is 126% higher than the RTX 5070 Mobile's 13.13 TFLOPS, yet the RTX 5070 Mobile still wins both real-world benchmarks. The GB10's nearest rivals in the database include the NVIDIA RTX 4000 SFF Ada Generation at 117088 (0.3% below GB10), the AMD Radeon PRO W7700 at 118976 (1.3% above), the NVIDIA Tesla V100 SXM2 16 GB at 114395 (2.6% below), and the NVIDIA RTX A5500 Mobile at 113944 (3% below). This places the GB10 in a workstation-class performance tier.

The RTX 5070 Mobile's nearest rivals are all consumer gaming GPUs. The NVIDIA GeForce RTX 3070 Ti scores 29945 (0.1% above), the NVIDIA GeForce RTX 2080 Ti scores 29783 (0.5% below), the AMD Radeon RX 6800 scores 30095 (0.6% above), and the AMD Radeon RX 6700 scores 30433 (1.7% above). The RTX 5070 Mobile's average score of 29928 places it in the upper mid-range of gaming GPUs.

The GB10 has additional benchmark data showing a Passmark DirectX 10 score of 129, DirectX 11 of 192, DirectX 12 of 93, DirectX 9 of 214, G2D of 896, G3D of 20355, and GPU compute of 8279. These scores are not available for the GB10 in the recorded data.

The Verdict

The data shows two GPUs designed for different purposes. The GB10 targets server compute workloads with its 128 GB memory capacity, 29.71 TFLOPS FP32 performance, and 95th percentile ranking. Its nearest rivals are professional workstation cards and datacenter accelerators. The RTX 5070 Mobile targets portable gaming and graphics with its DirectX 12 Ultimate support, 384.0 GB/s bandwidth, and 75th percentile ranking, competing directly with desktop gaming GPUs like the RTX 3070 Ti and RX 6800.

The GB10 wins on raw compute metrics: more shading units, more tensor cores, higher clocks, and more than double the FP32 throughput. Its 140 W TDP and 300 W suggested PSU indicate a device that requires substantial power delivery. The RTX 5070 Mobile wins on efficiency and graphics capability: 50 W TDP, higher memory bandwidth, and full graphics API support.

The benchmark results confirm this split. The RTX 5070 Mobile wins both Geekbench tests by 1.7% and 2%, respectively, despite the GB10's theoretical advantages. The GB10's lack of DirectX, OpenGL, and Vulkan support in the data explains why it trails in graphics-oriented benchmarks. For compute-centric tasks, the GB10's specifications suggest dominance, but the recorded data only covers graphics workloads.

Users needing massive memory capacity, high FP32 throughput, and tensor core density for AI or scientific workloads should look to the GB10. Users needing a portable GPU with modern graphics API support and lower power consumption should look to the RTX 5070 Mobile. The GB10's launch MSRP of 3,999 USD positions it as a professional datacenter component, while the RTX 5070 Mobile has no recorded launch price and fits into mobile gaming laptops. The benchmark records show the RTX 5070 Mobile winning the measured tests, but the GB10's compute specifications indicate a different class of capability that the available benchmarks do not fully capture.