NVIDIA GB10 vs NVIDIA GeForce RTX 5070 Mobile 12 GB Comparison

The Verdict

The recorded data positions the NVIDIA GB10 as the dominant compute part in this comparison. Its average benchmark score of 117,393 places it in the 95th percentile of all GPUs, while the NVIDIA GeForce RTX 5070 Mobile 12 GB has no recorded benchmark scores and sits at the 50th percentile with an average score of 0. The GB10 leads in every measured compute metric: FP32 throughput of 29.71 TFLOPS versus 13.13 TFLOPS, texture rate of 928.5 GTexel/s versus 205.2 GTexel/s, and pixel rate of 116.1 GPixel/s versus 68.40 GPixel/s.

The GB10 also carries 128 GB of LPDDR5X memory on a 256-bit bus with 273.2 GB/s of bandwidth. The RTX 5070 Mobile uses 12 GB of GDDR7 on a 192-bit bus, but its bandwidth is substantially higher at 576.0 GB/s. That memory bandwidth advantage is the only major metric where the mobile part wins, and it does not offset the GB10's compute lead.

The GB10 is a server-class Blackwell part with a 140 W TDP, designed as an IGP with no power connectors. The RTX 5070 Mobile is a 50 W mobile part with a release date later in the database. The GB10 has two recorded benchmark results: 120,137 in Geekbench OpenCL and 114,648 in Geekbench Vulkan. The RTX 5070 Mobile has no recorded results in either test.

For users selecting a part strictly from the data, the GB10 is the clear choice for compute-heavy workloads, AI inference, or rendering tasks where raw FP32 and texture throughput matter. The RTX 5070 Mobile would only be preferable in scenarios where lower power draw (50 W versus 140 W) and higher memory bandwidth (576.0 GB/s versus 273.2 GB/s) are the deciding factors. The GB10 also supports a 300 W suggested PSU, while the RTX 5070 Mobile has no such figure recorded.

The GB10's nearest rivals in the database include the NVIDIA RTX 4000 SFF Ada Generation (0.3% lower average score), the AMD Radeon PRO W7700 (1.3% higher), the NVIDIA Tesla V100 SXM2 16 GB (2.6% lower), and the NVIDIA RTX A5500 Mobile (3.0% lower). These deltas are small, indicating the GB10 sits in a tightly contested performance tier. The RTX 5070 Mobile has no nearest rivals recorded, which limits direct comparison.

FAQ

Q: Which GPU has the higher FP32 compute throughput?

A: The NVIDIA GB10 delivers 29.71 TFLOPS of FP32 performance, which is more than double the 13.13 TFLOPS of the NVIDIA GeForce RTX 5070 Mobile 12 GB.

Q: How does memory bandwidth compare between the two?

A: The RTX 5070 Mobile has a significant advantage with 576.0 GB/s of bandwidth from its GDDR7 memory on a 192-bit bus. The GB10 offers 273.2 GB/s from LPDDR5X on a 256-bit bus.

Q: What is the power consumption difference?

A: The GB10 has a TDP of 140 W, while the RTX 5070 Mobile has a TDP of 50 W. The GB10 also lists a suggested PSU of 300 W; the RTX 5070 Mobile has no suggested PSU recorded.

Q: Which GPU supports more API features?

A: The RTX 5070 Mobile supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The GB10 lists N/A for DirectX, OpenGL, and Vulkan, indicating it is not designed for consumer graphics APIs.

Q: How does the GB10 compare to its nearest rivals?

A: The GB10's average score of 117,393 is 0.3% above the NVIDIA RTX 4000 SFF Ada Generation, 1.3% below the AMD Radeon PRO W7700, 2.6% above the NVIDIA Tesla V100 SXM2 16 GB, and 3.0% above the NVIDIA RTX A5500 Mobile.

Q: What are the memory capacities of each GPU?

A: The GB10 has 128 GB of LPDDR5X memory, while the RTX 5070 Mobile has 12 GB of GDDR7 memory.

Architecture Differences

Both GPUs are built on the Blackwell 2.0 architecture and use a 5 nm process node from TSMC. However, they target different market segments and have distinct physical designs.

The GB10 uses the GB20B chip with a die size of 382 mm² and no recorded transistor count. It is part of the Server Blackwell (Bxx) generation and has a production status of Active. The chip includes 6,144 shading units, 384 TMUs, 48 ROPs, 48 RT cores, and 384 tensor cores. The GB10 is a server accelerator with a 256-bit memory bus, using LPDDR5X memory. It has an IGP slot width, no power connectors, and a PCIe 5.0 x16 bus interface. Its predecessor is listed as Server Hopper, and its successor is Server Rubin.

The RTX 5070 Mobile uses the GB206 chip with a die size of 181 mm² and 21,900 million transistors, giving a transistor density of 121.0M per mm². It belongs to the GeForce 50 Mobile generation. The chip contains 4,608 shading units, 144 TMUs, 48 ROPs, 36 RT cores, and 144 tensor cores. This mobile part uses a 192-bit memory bus with GDDR7 memory. It also has an IGP slot width and no power connectors, but its display outputs are marked as portable device dependent. Its predecessor is the GeForce 40 Mobile.

The GB10 has no API support listed (DirectX, OpenGL, and Vulkan are all N/A), which is typical for a compute-focused server part. The RTX 5070 Mobile supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, confirming its role as a consumer graphics processor. Both chips have the same 48 ROP count, but the GB10 has more than double the TMUs (384 versus 144) and more than double the tensor cores (384 versus 144).

Specification Differences

The two GPUs differ across nearly every recorded specification field. 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 memory runs at 1067 MHz with 8.5 Gbps effective speed, while the RTX 5070 Mobile's memory runs at 1500 MHz with 24 Gbps effective speed.

Memory size differs substantially: the GB10 has 128 GB of LPDDR5X, the RTX 5070 Mobile has 12 GB of GDDR7. Bus width is 256-bit for the GB10 and 192-bit for the mobile part. Bandwidth favors the mobile part at 576.0 GB/s versus 273.2 GB/s.

Shading units are 6,144 for the GB10 versus 4,608 for the RTX 5070 Mobile. TMUs are 384 versus 144, while ROPs are equal at 48. RT cores are 48 versus 36, and tensor cores are 384 versus 144. Pixel rate is 116.1 GPixel/s for the GB10 versus 68.40 GPixel/s for the mobile part. Texture rate is 928.5 GTexel/s versus 205.2 GTexel/s.

FP32 output is 29.71 TFLOPS versus 13.13 TFLOPS, with both parts offering a 1:1 FP16 ratio. TDP is 140 W for the GB10 versus 50 W for the RTX 5070 Mobile. The GB10 has a suggested PSU of 300 W; the mobile part has none. Display outputs are 1x HDMI for the GB10 versus portable device dependent for the RTX 5070 Mobile.

The GB10 has recorded dimensions of 150 mm by 51 mm by 150 mm, while the RTX 5070 Mobile has no dimensions recorded. The GB10 has a launch MSRP of 3,999 USD; the RTX 5070 Mobile has no launch MSRP recorded. Release dates differ: the GB10 was released on 2025-10-14, and the RTX 5070 Mobile on 2026-05-31.

Head-to-Head Benchmarks

The database contains no direct head-to-head benchmark entries between these two GPUs, and the RTX 5070 Mobile has no individual benchmark scores recorded. The only quantitative comparison available comes from the GB10's benchmark results and its nearest rival deltas.

The GB10 scored 120,137 in Geekbench OpenCL and 114,648 in Geekbench Vulkan, for an average of 117,393. That average places it in the 95th percentile of all GPUs. The RTX 5070 Mobile has an average score of 0 and sits at the 50th percentile, meaning no performance data exists for it in the database.

The GB10's nearest rival data provides context for its performance tier. It is 0.3% ahead of the NVIDIA RTX 4000 SFF Ada Generation (117,088 average score). The AMD Radeon PRO W7700 leads the GB10 by 1.3% with a score of 118,976. The GB10 is 2.6% ahead of the NVIDIA Tesla V100 SXM2 16 GB (114,395) and 3.0% ahead of the NVIDIA RTX A5500 Mobile (113,944). These margins are narrow, placing the GB10 in a competitive band among professional and server accelerators.

In raw compute metrics, the GB10 leads the RTX 5070 Mobile by 16.58 TFLOPS in FP32 (29.71 versus 13.13), by 723.3 GTexel/s in texture rate (928.5 versus 205.2), and by 47.7 GPixel/s in pixel rate (116.1 versus 68.40). The GB10 has 1,536 more shading units, 240 more TMUs, 12 more RT cores, and 240 more tensor cores than the mobile part.

The RTX 5070 Mobile's sole recorded advantage is memory bandwidth, where it leads by 302.8 GB/s (576.0 versus 273.2). It also has a lower TDP by 90 W (50 W versus 140 W), and its GDDR7 memory operates at a higher effective speed of 24 Gbps versus 8.5 Gbps for the GB10's LPDDR5X.

The GB10 supports a 300 W suggested PSU, which is consistent with its server-class positioning. The RTX 5070 Mobile has no suggested PSU recorded, typical for a mobile part where system power delivery is managed by the laptop platform. The GB10 uses a PCIe 5.0 x16 interface, and the RTX 5070 Mobile uses the same interface, so bus connectivity is identical.

For API support, the RTX 5070 Mobile is the only one of the two with consumer graphics API compatibility, listing DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4. The GB10 lists N/A across all three, reinforcing its role as a compute accelerator rather than a graphics output device. The GB10's single HDMI output is minimal, while the mobile part's display outputs are dependent on the portable device it is installed in.

The GB10 has a larger die at 382 mm² compared to 181 mm² for the RTX 5070 Mobile. The mobile part has a recorded transistor count of 21,900 million and a density of 121.0M per mm²; the GB10 has no transistor count recorded. Both are manufactured on TSMC's 5 nm process, and both use the Blackwell 2.0 architecture.