AMD Radeon RX 6700M vs NVIDIA GeForce RTX 4070 Mobile Comparison

Head-to-Head Benchmarks

The benchmark data presents a decisive, one-sided picture: the NVIDIA GeForce RTX 4070 Mobile wins all nine head-to-head comparisons against the AMD Radeon RX 6700M. The largest margin comes in Passmark GPU Compute, where the RTX 4070 Mobile scores 8,399 versus 5,191 for the RX 6700M, a 61.8% advantage that speaks to substantial raw compute throughput. That is not an isolated outlier; the gap is nearly as wide in the Passmark G3D test, with the NVIDIA part posting 19,587 points against AMD’s 13,536, a 44.7% delta that translates directly to overall 3D graphics performance.

The pattern holds across the entire legacy DirectX suite. In Passmark DirectX 9, the RTX 4070 Mobile delivers 223 points versus 155, a 43.9% lead. DirectX 11 shows a 38.8% gap (179 vs 129), DirectX 12 a 30.8% margin (85 vs 65), and DirectX 10 a 26.1% difference (116 vs 92). These results indicate that the NVIDIA architecture maintains its advantage regardless of API generation, from older fixed-function workloads to modern low-level APIs.

Compute-oriented workloads beyond gaming reinforce the trend. Geekbench OpenCL shows the RTX 4070 Mobile at 109,197 points, a 40.6% advantage over the RX 6700M’s 77,666. Geekbench Vulkan narrows the gap considerably, with NVIDIA still ahead at 108,367 versus 90,816, a 19.3% margin. Even the 2D-focused Passmark G2D test, which often rewards different design trade-offs, lands firmly in NVIDIA’s corner at 763 versus 555, a 37.5% delta.

The average benchmark scores tell a similar story, though the head-to-head deltas are starker. The RTX 4070 Mobile averages 27,435 points across its benchmark suite, while the RX 6700M averages 25,633. The NVIDIA GPU sits at the 73rd percentile of all GPUs, compared to the 71st percentile for AMD. The near-rival context puts the RTX 4070 Mobile in elite company: it sits within 0.5% of the RTX 3090 (27,565) and essentially tied with the RX 6700 XT (27,425), while the RX 6700M finds itself bracketed by workstation boards like the Radeon Pro W5700 (25,726) and the RTX 3080 Ti Mobile (25,740).

FAQ

Q: Does the GeForce RTX 4070 Mobile win every single benchmark against the RX 6700M?

A: Yes. The head-to-head data shows nine wins for the RTX 4070 Mobile and zero for the RX 6700M across all tested workloads, including OpenCL, Vulkan, DirectX 9 through 12, 2D, 3D, and compute tests.

Q: Which benchmark shows the smallest performance gap between the two?

A: Geekbench Vulkan has the narrowest margin. The RTX 4070 Mobile scores 108,367 against the RX 6700M’s 90,816, a 19.3% delta — still a clear NVIDIA win, but far closer than the 61.8% gap seen in Passmark GPU Compute.

Q: How does the RX 6700M compare to its own closest rivals?

A: The RX 6700M’s average score of 25,633 places it just 0.4% behind the Radeon Pro W5700 and the RTX 3080 Ti Mobile, and 0.8% behind the FirePro D700. Its nearest listed rival, the FirePro W7100, sits only 0.9% ahead.

Q: Is the RTX 4070 Mobile closer to a desktop GPU or the RX 6700M in overall performance?

A: The RTX 4070 Mobile’s average score of 27,435 puts it within 0.5% of the desktop RTX 3090 (27,565) and exactly tied with the RX 6700 XT (27,425). The RX 6700M trails by roughly 7% in average score.

Q: What does the percentile ranking indicate about each GPU?

A: The RTX 4070 Mobile ranks in the 73rd percentile of all GPUs, while the RX 6700M ranks in the 71st. This places both in the upper tier of mobile graphics, but the NVIDIA part sits meaningfully higher in the overall distribution.

Q: Are the DirectX 12 scores representative of modern gaming performance?

A: The DirectX 12 result (85 vs 65, a 30.8% NVIDIA lead) aligns with the broader pattern, but the Passmark G3D score (19,587 vs 13,536) and Geekbench Vulkan results are likely more indicative of contemporary game engines. All point in the same direction.

Where Each One Wins

The data offers no ambiguity: the RTX 4070 Mobile wins everywhere. For gamers targeting high refresh rates or high-resolution textures, the 44.7% lead in Passmark G3D is the headline number — it suggests a substantially faster rasterization pipeline. For content creators running compute-heavy workloads like rendering or physics simulation, the 61.8% margin in Passmark GPU Compute is even more decisive. The RTX 4070 Mobile also leads in every DirectX iteration, which means backward compatibility with older titles does not erode its advantage.

The RX 6700M’s role in this comparison is less about winning and more about context. Its Geekbench Vulkan result (90,816) is respectable and only 19.3% behind NVIDIA, indicating that modern low-level APIs narrow the gap. Its 10 GB memory capacity and 320.0 GB/s bandwidth are also assets in texture-heavy scenarios, though the benchmark suite does not isolate memory-bound workloads. For users who already own an RX 6700M system, the data shows it remains competitive with the RTX 3080 Ti Mobile (within 0.4%) — but against the newer RTX 4070 Mobile, it is outclassed across the board.

Specification Differences

The two GPUs diverge significantly in their core configurations. The RTX 4070 Mobile packs 4,608 shading units, 144 TMUs, and 48 ROPs, while the RX 6700M has 2,304 shading units, 144 TMUs, and 64 ROPs. The NVIDIA part features 36 RT cores and 144 tensor cores; the AMD part has 36 RT cores but no tensor cores at all. This explains the compute disparity: the RTX 4070 Mobile delivers 15.62 TFLOPS of FP32 and 15.62 TFLOPS of FP16 (1:1 ratio), whereas the RX 6700M manages 11.06 TFLOPS FP32 and 22.12 TFLOPS FP16 (2:1 ratio). AMD’s FP16 advantage is notable, but NVIDIA’s tensor cores likely compensate in AI-accelerated workloads.

Memory configurations differ in capacity and bandwidth. The RTX 4070 Mobile uses 8 GB of GDDR6 on a 128-bit bus, yielding 256.0 GB/s. The RX 6700M offers 10 GB of GDDR6 on a 160-bit bus, producing 320.0 GB/s — a 25% bandwidth advantage for AMD. Clock speeds tell a different story: the RX 6700M boosts to 2,400 MHz (with a 2,300 MHz game clock) versus the RTX 4070 Mobile’s 1,695 MHz boost, though the NVIDIA part starts from a 1,395 MHz base versus AMD’s 1,489 MHz. Power targets also differ, with the RX 6700M rated at 135 W and the RTX 4070 Mobile at 115 W.

The bus interface is another differentiator: the RTX 4070 Mobile uses PCIe 4.0 x8, while the RX 6700M uses PCIe 4.0 x16. Both support DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, and both are described as "Portable Device Dependent" for display outputs.

Architecture Differences

The architectural gap is generational. The RTX 4070 Mobile is built on NVIDIA’s Ada Lovelace architecture using the AD106 chip, fabricated on TSMC’s 5 nm process. The RX 6700M uses AMD’s RDNA 2.0 architecture with the Navi 22 chip, manufactured on TSMC’s 7 nm node. The process difference is stark: the RTX 4070 Mobile packs 22,900 million transistors into a 188 mm² die, achieving a density of 121.8 million transistors per mm². The RX 6700M contains 17,200 million transistors across a much larger 335 mm² die, with a density of just 51.3 million per mm². This is the core story — NVIDIA achieves greater complexity in a smaller footprint, which enables the higher shading unit count and tensor core array.

The feature sets reflect their respective design philosophies. The RTX 4070 Mobile includes 144 tensor cores, enabling AI-driven features like DLSS that the RX 6700M cannot match, as it has no equivalent hardware. Both have 36 RT cores, so ray tracing capability is nominally equal, but the underlying architectures handle traversal and intersection differently. The RX 6700M’s FP16 throughput (22.12 TFLOPS) exceeds its FP32 output due to a 2:1 ratio, whereas the RTX 4070 Mobile maintains a 1:1 ratio at 15.62 TFLOPS — a design choice that favors different workload types.

The release timeline also matters. The RX 6700M launched in May 2021 as part of the Navi Mobile generation, succeeding Polaris Mobile, and is now marked as end-of-life. The RTX 4070 Mobile arrived in January 2023 under the GeForce 40 Mobile banner, succeeding GeForce 30 Mobile and preceding GeForce 50 Mobile. The AMD part belongs to the Radeon RX 6000 series, while the NVIDIA part is the newer GeForce 40-series. Production status reflects this: the RX 6700M is end-of-life, the RTX 4070 Mobile is active. The power efficiency story favors NVIDIA as well — the RTX 4070 Mobile delivers significantly higher performance at 115 W than the RX 6700M does at 135 W, a 20 W difference that matters in thin-and-light chassis.