NVIDIA GeForce RTX 5070 Mobile vs NVIDIA H800 SXM5 Comparison

The Verdict

The database places these two NVIDIA processors at opposite ends of the computing spectrum. The GeForce RTX 5070 Mobile is a 50-watt integrated graphics processor for laptops, built on the Blackwell 2.0 architecture. The H800 SXM5 is a 700-watt server module built on Hopper, designed for high-performance computing and AI workloads. The recorded data shows no direct head-to-head benchmark results, as the H800 SXM5 has no entries in the benchmark database. The RTX 5070 Mobile, in contrast, has a full set of benchmark scores and sits at the 75th percentile of all GPUs, with an average benchmark score of 29,928. The H800 SXM5 has a percentile ranking of 50 and an average benchmark score of zero, reflecting the absence of recorded gaming or compute benchmarks in this database.

For users selecting between these two, the data points to a simple split: the RTX 5070 Mobile is the only option with any measured performance data, while the H800 SXM5 is a server accelerator with no benchmark results recorded. The RTX 5070 Mobile's nearest rivals include the GeForce RTX 3070 Ti (average score 29,945, delta -0.1%) and the RTX 2080 Ti (average score 29,783, delta +0.5%). This places the mobile chip in the same performance class as those desktop cards from previous generations. The H800 SXM5, with its massive FP32 throughput of 59.30 TFLOPS and FP16 of 237.2 TFLOPS, is clearly aimed at a different workload profile, but the database contains no scores to compare it against the mobile part.

Architecture Differences

The two chips share a 5 nm process node, both fabricated by TSMC, but diverge sharply in every other architectural aspect. The RTX 5070 Mobile uses the GB206 chip with 21,900 million transistors on a 181 mm² die, yielding a transistor density of 121.0 million per mm². The H800 SXM5 uses the GH100 chip with 80,000 million transistors on an 814 mm² die, with a density of 98.3 million per mm². The die size difference alone, 181 mm² versus 814 mm², indicates a substantially larger silicon investment for the server part.

The RTX 5070 Mobile belongs to the Blackwell 2.0 architecture, while the H800 SXM5 uses the Hopper architecture. The mobile chip has 4,608 shading units, 144 texture mapping units, and 48 render output units. It includes 36 ray tracing cores and 144 tensor cores. The H800 SXM5 has 16,896 shading units, 528 texture mapping units, and only 24 render output units. It has no ray tracing cores listed, but includes 528 tensor cores. The shading unit count for the H800 is 3.7 times higher, yet its pixel rate of 42.12 GPixel/s is lower than the mobile chip's 68.40 GPixel/s, a consequence of its 24 ROPs versus the mobile part's 48.

Memory architectures are fundamentally different. The RTX 5070 Mobile uses 8 GB of GDDR7 on a 128-bit bus, delivering 384.0 GB/s of bandwidth. The H800 SXM5 uses 80 GB of HBM3 on a 5120-bit bus, delivering 3.36 TB/s of bandwidth, roughly 8.75 times higher. The H800's memory clock is listed at 1313 MHz with 5.3 Gbps effective, while the RTX 5070 Mobile runs at 1500 MHz with 24 Gbps effective. The server part's massive bus width compensates for its lower clock speed.

Clock speeds also differ. The RTX 5070 Mobile has a base clock of 907 MHz and a boost of 1425 MHz. The H800 SXM5 has a base of 1095 MHz and a boost of 1755 MHz. Despite the higher clocks and more than triple the shading units, the H800's FP32 throughput of 59.30 TFLOPS is 4.5 times the RTX 5070 Mobile's 13.13 TFLOPS. The FP16 comparison is starker: the H800 delivers 237.2 TFLOPS (4:1 ratio), while the mobile chip delivers 13.13 TFLOPS (1:1 ratio). The H800's tensor core count of 528 versus the mobile's 144 further indicates the server part's focus on matrix operations.

FAQ

Q: Which GPU has a higher average benchmark score?

A: The GeForce RTX 5070 Mobile has an average benchmark score of 29,928, while the H800 SXM5 has an average benchmark score of zero, as no benchmarks are recorded for it in the database.

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

A: The RTX 5070 Mobile sits within 2% of its closest rivals. It is 0.1% behind the RTX 3070 Ti (29,945), 0.5% ahead of the RTX 2080 Ti (29,783), 0.6% behind the RX 6800 (30,095), and 1.7% behind the RX 6700 (30,433).

Q: What is the memory capacity difference between the two?

A: The H800 SXM5 has 80 GB of HBM3 memory, while the RTX 5070 Mobile has 8 GB of GDDR7. The H800's memory bandwidth is 3.36 TB/s, compared to 384.0 GB/s for the mobile chip.

Q: Do both GPUs support the same API set?

A: No. The RTX 5070 Mobile supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The H800 SXM5 has no API support listed for DirectX, OpenGL, or Vulkan.

Q: What is the power consumption difference?

A: The RTX 5070 Mobile has a TDP of 50 W and uses no power connectors, as it is an integrated graphics processor. The H800 SXM5 has a TDP of 700 W, uses an 8-pin EPS power connector, and requires a suggested PSU of 1100 W.

Q: Which GPU has a higher pixel rate?

A: The RTX 5070 Mobile has a pixel rate of 68.40 GPixel/s, which is higher than the H800 SXM5's 42.12 GPixel/s, despite the server chip having more than three times the shading units.

Specification Differences

The two processors differ in nearly every recorded specification. The RTX 5070 Mobile uses the GB206 chip with 21,900 million transistors, while the H800 SXM5 uses the GH100 chip with 80,000 million transistors. Die size is 181 mm² versus 814 mm². Transistor density is 121.0M / mm² versus 98.3M / mm². The mobile chip has a base clock of 907 MHz and boost of 1425 MHz; the H800 has 1095 MHz base and 1755 MHz boost. Memory speed is 1500 MHz (24 Gbps effective) for the mobile part versus 1313 MHz (5.3 Gbps effective) for the server part.

Memory size is 8 GB versus 80 GB, type is GDDR7 versus HBM3, bus width is 128 bit versus 5120 bit, and bandwidth is 384.0 GB/s versus 3.36 TB/s. Shading units are 4,608 versus 16,896, TMUs are 144 versus 528, and ROPs are 48 versus 24. The RTX 5070 Mobile has 36 RT cores, while the H800 has none listed. Tensor cores are 144 versus 528. Pixel rate is 68.40 GPixel/s versus 42.12 GPixel/s, and texture rate is 205.2 GTexel/s versus 926.6 GTexel/s. FP32 is 13.13 TFLOPS versus 59.30 TFLOPS, and FP16 is 13.13 TFLOPS (1:1) versus 237.2 TFLOPS (4:1). TDP is 50 W versus 700 W, slot width is IGP versus SXM Module, and power connectors are None versus 8-pin EPS. The suggested PSU is listed only for the H800 at 1100 W. Display outputs are "Portable Device Dependent" for the mobile chip and "No outputs" for the server part. The RTX 5070 Mobile supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4; the H800 lists no API support. Release dates are 2025-04-14 for the mobile chip and 2023-03-20 for the H800. The H800 has a predecessor of "Server Ada" and successor of "Server Blackwell", while the RTX 5070 Mobile has a predecessor of "GeForce 40 Mobile" and no successor.

Head-to-Head Benchmarks

The database contains no head-to-head benchmark results between these two processors. The RTX 5070 Mobile has nine recorded benchmark scores, while the H800 SXM5 has none. The mobile chip's scores include Geekbench OpenCL at 122,238 and Geekbench Vulkan at 116,960. Its Passmark scores are 129 for DirectX 10, 192 for DirectX 11, 93 for DirectX 12, 214 for DirectX 9, 896 for G2D, 20,355 for G3D, and 8,279 for GPU compute. These numbers provide a reference point for the mobile part's capabilities, but no comparable figures exist for the H800 SXM5.

The absence of data for the H800 means that any direct comparison of measured performance is impossible. The server chip's theoretical specifications suggest far higher compute throughput, with FP32 at 59.30 TFLOPS and FP16 at 237.2 TFLOPS. The RTX 5070 Mobile's FP32 of 13.13 TFLOPS and FP16 of 13.13 TFLOPS are substantially lower. However, the database records no benchmark scores to confirm how these theoretical numbers translate into real-world results. The mobile chip's average benchmark score of 29,928 places it at the 75th percentile of all GPUs, while the H800's zero score and 50th percentile ranking reflect its lack of recorded data rather than actual performance.

The nearest rivals for the RTX 5070 Mobile provide context for its measured performance. Its average score of 29,928 is nearly identical to the RTX 3070 Ti's 29,945 (delta -0.1%) and slightly ahead of the RTX 2080 Ti's 29,783 (delta +0.5%). It trails the RX 6800 (30,095, delta -0.6%) and RX 6700 (30,433, delta -1.7%). These comparisons show the mobile chip performing at the level of previous-generation desktop cards, a notable result given its 50 W TDP and integrated nature.

Where Each One Wins

The RTX 5070 Mobile wins in measured benchmark presence. It has nine recorded scores, an average benchmark score of 29,928, and a 75th percentile ranking. Its pixel rate of 68.40 GPixel/s exceeds the H800's 42.12 GPixel/s, indicating stronger fill-rate performance. It supports a full API suite including DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, making it suitable for consumer graphics workloads. Its 50 W TDP and IGP slot width mean it requires no power connectors and no dedicated PSU, making it a low-power option for portable devices.

The H800 SXM5 wins in raw compute specifications. Its FP32 throughput of 59.30 TFLOPS is 4.5 times higher, and its FP16 of 237.2 TFLOPS is 18 times higher than the mobile chip. Its 80 GB of HBM3 memory with 3.36 TB/s bandwidth provides 8.75 times the bandwidth of the RTX 5070 Mobile's 384.0 GB/s. The server part's 528 tensor cores versus 144 indicate a stronger matrix computation capability. Its texture rate of 926.6 GTexel/s is 4.5 times higher than the mobile chip's 205.2 GTexel/s. The H800 also has a higher shading unit count (16,896 versus 4,608) and TMU count (528 versus 144). Its 700 W TDP and 1100 W suggested PSU reflect a design for sustained high-performance computing in server environments.

The data does not show any benchmark wins for the H800 SXM5, as none are recorded. The RTX 5070 Mobile's wins are entirely in the benchmark and consumer-feature categories. For workloads requiring measured graphics performance, API support, and low power consumption, the RTX 5070 Mobile is the only part with supporting data. For workloads requiring maximum compute throughput, large memory capacity, and high bandwidth, the H800 SXM5's specifications indicate it is the stronger candidate, though the absence of benchmark scores leaves this as an inference from specifications rather than a measured result.