AMD Radeon RX 7650 GRE vs NVIDIA GeForce RTX 4080 Mobile Comparison

# Head-to-Head Benchmarks

The benchmark data is unequivocal: the NVIDIA GeForce RTX 4080 Mobile dominates the single available head-to-head comparison. In the Geekbench OpenCL test, the RTX 4080 Mobile scores 159,575 against the AMD Radeon RX 7650 GRE's 83,109. That represents a 47.9% deficit for the AMD card — a massive gap that places the two GPUs in entirely different performance tiers. The RTX 4080 Mobile delivers nearly double the raw compute throughput in this workload, making the comparison almost lopsided.

However, the broader benchmark picture reveals a more nuanced story. The AMD Radeon RX 7650 GRE posts an average benchmark score of 42,723 across all tested workloads, while the RTX 4080 Mobile averages 38,135. This is a 12.0% advantage for the AMD card in aggregate performance. The apparent contradiction — losing the single head-to-head test but winning the overall average — stems from the fact that the two cards were tested across different benchmark suites. The RX 7650 GRE's average includes its 3DMark Steel Nomad DX12 score of 2,336, a modern DirectX 12 workload where it clearly excels, while the RTX 4080 Mobile's average pulls in older DirectX 9, 10, and 11 results (PassMark scores of 286, 157, and 244 respectively) alongside its 24,926 PassMark G3D score.

In the NVIDIA card's favor, its Geekbench Vulkan score of 145,807 demonstrates strong cross-API capability, while its PassMark GPU Compute score of 11,191 shows solid general-purpose compute performance. The AMD card counters with a percentile ranking of 83 versus the NVIDIA's 81, meaning the RX 7650 GRE outperforms a slightly larger share of all GPUs in the database. Yet the RTX 4080 Mobile's nearest rivals include the GeForce RTX 5080 Mobile (deltaPct -0.6%) and the RTX 4070 (+1.3%), showing it sits in a competitive cluster, while the RX 7650 GRE's nearest rivals are led by the RTX 4070 SUPER (deltaPct -1.2%) — a desktop card that edges it out by a hair.

# Architecture Differences

The architectural chasm between these two GPUs is stark. The AMD Radeon RX 7650 GRE is built on the RDNA 3.0 architecture using the Navi 33 chip, manufactured on TSMC's 6 nm process. It packs 13,300 million transistors into a 204 mm² die, yielding a transistor density of 65.2 million per square millimeter. The NVIDIA GeForce RTX 4080 Mobile uses the Ada Lovelace architecture with the AD104 chip, fabricated on a more advanced TSMC 5 nm node. It contains 35,800 million transistors on a 294 mm² die — a transistor density of 121.8 million per square millimeter, nearly double that of the AMD chip.

The compute resources diverge dramatically. The RTX 4080 Mobile fields 7,424 shading units, 232 texture mapping units, and 80 ROPs, versus the RX 7650 GRE's 2,048 shaders, 128 TMUs, and 64 ROPs. The NVIDIA card also carries 58 ray tracing cores and 232 tensor cores, while the AMD card has 32 ray accelerators and no tensor core equivalent. Despite the 3.6x shading unit advantage, the RTX 4080 Mobile's FP32 throughput of 24.72 TFLOPS is only modestly ahead of the RX 7650 GRE's 22.08 TFLOPS — a consequence of the NVIDIA card's lower boost clock of 1,665 MHz versus 2,695 MHz for the AMD card.

Memory configurations also tell different stories. The RX 7650 GRE uses 8 GB of GDDR6 on a 128-bit bus, delivering 288.0 GB/s of bandwidth. The RTX 4080 Mobile steps up to 12 GB of GDDR6 on a 192-bit bus, achieving 432.0 GB/s. Both run memory at 2,250 MHz (18 Gbps effective). The power envelopes are inverted relative to performance class: the AMD desktop card draws 170 W and requires a dual-slot cooler with a single 8-pin connector plus a 450 W suggested PSU, while the NVIDIA mobile part sips just 110 W and is integrated (IGP form factor) with no power connectors — designed for laptop integration where the system power delivery handles everything.

# FAQ

Q: Which GPU has the higher average benchmark score?

A: The AMD Radeon RX 7650 GRE averages 42,723 across all benchmarks, compared to the NVIDIA GeForce RTX 4080 Mobile's 38,135 — a 12.0% advantage for the AMD card.

Q: How large is the performance gap in the Geekbench OpenCL test?

A: The RTX 4080 Mobile scores 159,575 versus 83,109 for the RX 7650 GRE, meaning the NVIDIA card leads by 47.9% in that specific workload.

Q: What process nodes do these GPUs use?

A: The AMD RX 7650 GRE uses TSMC's 6 nm process, while the NVIDIA RTX 4080 Mobile uses TSMC's 5 nm process — a more advanced node with higher transistor density.

Q: Do both cards support the same DirectX and Vulkan versions?

A: Yes, both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The RTX 4080 Mobile also has dedicated tensor cores (232) for AI workloads, which the AMD card lacks entirely.

Q: What is the memory bandwidth difference?

A: The RTX 4080 Mobile provides 432.0 GB/s across a 192-bit bus, while the RX 7650 GRE delivers 288.0 GB/s over a 128-bit bus — a 50% bandwidth advantage for the NVIDIA card.

Q: How do their percentile rankings compare?

A: The RX 7650 GRE sits at the 83rd percentile of all GPUs, while the RTX 4080 Mobile ranks at the 81st percentile, indicating the AMD card outperforms a slightly larger fraction of the GPU population.

# The Verdict

The data supports a clear split decision. For raw compute throughput in modern workloads, the NVIDIA GeForce RTX 4080 Mobile is the superior performer — its 47.9% lead in Geekbench OpenCL and 24.72 TFLOPS FP32 throughput versus 22.08 TFLOPS for the AMD card demonstrate genuine compute superiority. The NVIDIA card also offers more memory (12 GB versus 8 GB), higher bandwidth (432.0 GB/s versus 288.0 GB/s), and a significantly more advanced feature set with 232 tensor cores and 58 ray tracing cores.

However, the AMD Radeon RX 7650 GRE wins the aggregate performance race with a 12.0% higher average benchmark score and a better percentile ranking (83 versus 81). Its 3DMark Steel Nomad DX12 score of 2,336 indicates strong modern gaming performance, and its nearest rivals include desktop-class cards like the RTX 4070 SUPER (deltaPct -1.2%), whereas the RTX 4080 Mobile's nearest rivals include the RTX 5080 Mobile (deltaPct -0.6%) — a newer generation part. The AMD card also carries a 279 USD launch MSRP, though the RTX 4080 Mobile has no comparable listed price due to its mobile nature.

The verdict hinges on use case. For laptop users needing maximum compute and AI capability in a low-power envelope (110 W TDP), the RTX 4080 Mobile is the clear choice. For desktop builders prioritizing overall benchmark performance and modern DX12 gaming at a fixed launch price point, the RX 7650 GRE offers compelling aggregate results. The RTX 4080 Mobile's 7424 shading units and 232 TMUs vastly outnumber the AMD's 2048 shaders and 128 TMUs, but the AMD's higher clocks (2,695 MHz boost versus 1,665 MHz) partially compensate in real-world workloads.

# Specification Differences

| Specification | AMD Radeon RX 7650 GRE | NVIDIA GeForce RTX 4080 Mobile |

|---|---|---|

| Process Node | 6 nm | 5 nm |

| Transistors | 13,300 million | 35,800 million |

| Die Size | 204 mm² | 294 mm² |

| Transistor Density | 65.2M / mm² | 121.8M / mm² |

| Base Clock | 1720 MHz | 1290 MHz |

| Boost Clock | 2695 MHz | 1665 MHz |

| Memory Size | 8 GB | 12 GB |

| Memory Bus Width | 128 bit | 192 bit |

| Memory Bandwidth | 288.0 GB/s | 432.0 GB/s |

| Shading Units | 2048 | 7424 |

| TMUs | 128 | 232 |

| ROPs | 64 | 80 |

| RT Cores | 32 | 58 |

| Tensor Cores | None | 232 |

| Pixel Rate | 172.5 GPixel/s | 133.2 GPixel/s |

| Texture Rate | 345.0 GTexel/s | 386.3 GTexel/s |

| FP32 / FP16 | 22.08 TFLOPS | 24.72 TFLOPS |

| TDP | 170 W | 110 W |

| Slot Width | Dual-slot | IGP |

| Power Connectors | 1x 8-pin | None |

| Bus Interface | PCIe 4.0 x8 | PCIe 4.0 x16 |

| Release Date | 2025-02-06 | 2023-01-02 |

# Where Each One Wins

AMD Radeon RX 7650 GRE wins on: aggregate benchmark average (42,723 versus 38,135), percentile ranking (83rd versus 81st), pixel fill rate (172.5 GPixel/s versus 133.2 GPixel/s), clock speeds (2,695 MHz boost versus 1,665 MHz), and desktop form factor flexibility with dual-slot cooling and standard display outputs (1x HDMI 2.1a, 3x DisplayPort 2.1). Its nearest rivals are desktop cards like the RTX 4070 SUPER (deltaPct -1.2%), indicating it competes above its class in aggregate performance.

NVIDIA GeForce RTX 4080 Mobile wins on: Geekbench OpenCL performance (159,575 versus 83,109, a 47.9% lead), memory capacity (12 GB versus 8 GB), memory bandwidth (432.0 GB/s versus 288.0 GB/s), transistor count (35,800 million versus 13,300 million), shading units (7,424 versus 2,048), texture rate (386.3 GTexel/s versus 345.0 GTexel/s), and power efficiency (110 W TDP versus 170 W). Its 232 tensor cores enable AI acceleration absent from the AMD card, and its PCIe 4.0 x16 interface doubles the AMD's x8 bandwidth. The RTX 4080 Mobile also has Vulkan benchmark evidence (145,807 in Geekbench Vulkan) showing cross-API strength, while the AMD card has no Vulkan benchmark recorded.