AMD Radeon RX 7700S vs NVIDIA GeForce RTX 4080 Mobile Comparison

The NVIDIA GeForce RTX 4080 Mobile and the AMD Radeon RX 7700S represent two distinct approaches to high-end mobile graphics. The recorded data shows a clear performance hierarchy, but the architectural choices behind each GPU explain why the gap is so large in certain workloads.

Where Each One Wins

The benchmark results are unambiguous: the NVIDIA GeForce RTX 4080 Mobile wins both recorded head-to-head tests. There are no tests in the database where the AMD Radeon RX 7700S comes out ahead. In Geekbench OpenCL, the RTX 4080 Mobile scores 159575 against 62983 for the RX 7700S, a 153.4% advantage. The Vulkan result is even more lopsided, with the RTX 4080 Mobile scoring 145807 versus 36380 for the RX 7700S, a 300.8% lead.

Looking at the broader database, the RTX 4080 Mobile sits in the 81st percentile of all GPUs, while the RX 7700S is in the 78th percentile. The average benchmark score for the NVIDIA part is 38135, compared to 33849 for the AMD part, a difference of roughly 12.7%. This is not a close contest in raw compute, and the data suggests that any workload leveraging OpenCL or Vulkan will favor the NVIDIA solution by a wide margin.

The RX 7700S does have a higher pixel rate (160.0 GPixel/s versus 133.2 GPixel/s for the RTX 4080 Mobile), which could theoretically benefit certain rasterization-heavy scenarios at lower resolutions. However, no benchmark in the database confirms this advantage in practice. The AMD GPU also has a higher boost clock (2500 MHz versus 1665 MHz), but that does not translate into higher recorded performance in the available tests.

Architecture Differences

The two GPUs are built on fundamentally different designs. The NVIDIA GeForce RTX 4080 Mobile uses the AD104 chip based on Ada Lovelace architecture, fabricated on a 5 nm process at TSMC. It packs 35,800 million transistors into a 294 mm² die, giving it a transistor density of 121.8M per mm². The AMD Radeon RX 7700S uses the Navi 33 chip based on RDNA 3.0 architecture (codename "Hotpink Bonefish"), built on a 6 nm process, also at TSMC. It has 13,300 million transistors on a 204 mm² die, with a density of 65.2M per mm².

The shader configuration differs dramatically. The RTX 4080 Mobile has 7424 shading units, 232 TMUs, and 80 ROPs. The RX 7700S has 2048 shading units, 128 TMUs, and 64 ROPs. NVIDIA also includes 58 RT cores and 232 tensor cores, while AMD lists 32 RT cores and no tensor cores in the database.

Memory architecture is another major divergence. The RTX 4080 Mobile has 12 GB of GDDR6 on a 192-bit bus, producing 432.0 GB/s of bandwidth. The RX 7700S has 8 GB of GDDR6 on a 128-bit bus, yielding 288.0 GB/s. Both use 18 Gbps effective memory clocks, but the wider bus on the NVIDIA part provides a 50% bandwidth advantage. This explains why the RTX 4080 Mobile can sustain higher throughput in compute-heavy workloads.

Compute throughput also tells a story. The RTX 4080 Mobile achieves 24.72 TFLOPS for both FP32 and FP16 (at a 1:1 ratio). The RX 7700S delivers 20.48 TFLOPS for FP32 but doubles to 40.96 TFLOPS for FP16 thanks to a 2:1 ratio. The AMD GPU has a raw FP16 advantage on paper, but the recorded OpenCL and Vulkan scores do not reflect this, likely because those tests do not heavily leverage FP16 paths.

Power and interface specs are similar: both are IGP-class mobile parts with no dedicated power connectors, both run on PCIe 4.0 x16, and both support DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4. The RTX 4080 Mobile has a 110 W TDP, while the RX 7700S has a 100 W TDP.

Head-to-Head Benchmarks

The Geekbench OpenCL test shows the RTX 4080 Mobile at 159575, which is 153.4% higher than the RX 7700S at 62983. This result aligns with the massive shader core count difference (7424 versus 2048) and the higher memory bandwidth (432.0 GB/s versus 288.0 GB/s). OpenCL workloads often scale with raw compute units and memory throughput, so the NVIDIA part's advantages in both areas produce a dominant result.

The Geekbench Vulkan test is even more decisive. The RTX 4080 Mobile scores 145807, while the RX 7700S manages only 36380, a 300.8% gap. Vulkan is a low-overhead API that rewards efficient driver execution and hardware feature utilization. The RTX 4080 Mobile's Ada Lovelace architecture, with its dedicated RT and tensor cores, appears to handle Vulkan's compute and graphics pipelines far more effectively than the RDNA 3.0 part in this specific test.

It is importantly the RX 7700S has a higher texture rate in theory: 320.0 GTexel/s versus 386.3 GTexel/s for the RTX 4080 Mobile, actually the NVIDIA part is ahead here too. The pixel rate favors AMD (160.0 GPixel/s versus 133.2 GPixel/s), but no recorded benchmark shows this translating into a win.

FAQ

Q: How much faster is the RTX 4080 Mobile in OpenCL?

A: The RTX 4080 Mobile scores 159575 versus 62983 for the RX 7700S, which is a 153.4% higher result.

Q: What is the Vulkan performance difference?

A: The RTX 4080 Mobile scores 145807, while the RX 7700S scores 36380, giving NVIDIA a 300.8% advantage.

Q: Which GPU has more memory bandwidth?

A: The RTX 4080 Mobile has 432.0 GB/s from 12 GB on a 192-bit bus. The RX 7700S has 288.0 GB/s from 8 GB on a 128-bit bus.

Q: Do both GPUs support the same APIs?

A: Yes, both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Q: What are the transistor counts?

A: The RTX 4080 Mobile has 35,800 million transistors on a 294 mm² die. The RX 7700S has 13,300 million transistors on a 204 mm² die.

Q: Which GPU has a higher average benchmark score?

A: The RTX 4080 Mobile averages 38135, versus 33849 for the RX 7700S. The NVIDIA part sits in the 81st percentile of all GPUs, while the AMD part is in the 78th.

Specification Differences

The two GPUs differ in nearly every core specification. The RTX 4080 Mobile uses a 5 nm process with 35,800 million transistors on a 294 mm² die (121.8M per mm² density). The RX 7700S uses a 6 nm process with 13,300 million transistors on a 204 mm² die (65.2M per mm² density).

Clock speeds are significantly different: the RTX 4080 Mobile has a 1290 MHz base and 1665 MHz boost, while the RX 7700S has a 1500 MHz base and 2500 MHz boost, with a 2200 MHz game clock listed.

Memory configuration is another major split. The RTX 4080 Mobile offers 12 GB on a 192-bit bus with 432.0 GB/s bandwidth. The RX 7700S offers 8 GB on a 128-bit bus with 288.0 GB/s bandwidth.

Shader resources favor NVIDIA heavily: 7424 shading units, 232 TMUs, 80 ROPs, 58 RT cores, and 232 tensor cores. AMD has 2048 shading units, 128 TMUs, 64 ROPs, and 32 RT cores, with no tensor cores listed.

Compute rates differ: the RTX 4080 Mobile achieves 133.2 GPixel/s and 386.3 GTexel/s, while the RX 7700S achieves 160.0 GPixel/s and 320.0 GTexel/s. FP32 throughput is 24.72 TFLOPS for NVIDIA and 20.48 TFLOPS for AMD. FP16 is 24.72 TFLOPS (1:1) for NVIDIA and 40.96 TFLOPS (2:1) for AMD.

TDP is 110 W for the RTX 4080 Mobile and 100 W for the RX 7700S. Both are IGP slot width with no power connectors and portable-device-dependent display outputs.

The Verdict

The data points to a clear recommendation for the NVIDIA GeForce RTX 4080 Mobile for any user prioritizing raw compute performance. It wins both recorded benchmarks by massive margins, holds a higher average score (38135 versus 33849), and sits in a higher percentile of all GPUs. The 153.4% OpenCL lead and 300.8% Vulkan lead are not marginal differences; they represent a completely different performance class.

The RX 7700S is not without merit. Its higher pixel rate (160.0 GPixel/s) and boost clock (2500 MHz) suggest it could be competitive in specific rasterization scenarios, and its FP16 throughput (40.96 TFLOPS) exceeds the NVIDIA part. However, no recorded benchmark demonstrates any win for the AMD GPU. The 8 GB memory capacity and 288.0 GB/s bandwidth are also limiting factors compared to the RTX 4080 Mobile's 12 GB and 432.0 GB/s.

For a buyer choosing between these two mobile GPUs, the RTX 4080 Mobile is the safer pick if the workload involves OpenCL or Vulkan compute, which covers most modern games and GPU-accelerated applications. The RX 7700S would only make sense if the specific software in question happens to favor its higher pixel rate or FP16 capabilities, but the database does not provide any evidence that such software exists in practice. The RTX 4080 Mobile is the superior part across every measured metric.