AMD Radeon R7 M445 vs NVIDIA GeForce RTX 3080 12 GB Comparison

Head-to-Head Benchmarks

The recorded data shows no direct head-to-head benchmark comparison between the AMD Radeon R7 M445 and the NVIDIA GeForce RTX 3080 12 GB. Instead, each part was evaluated against its own pool of nearest rivals, which makes cross-referencing their performance a matter of examining percentile positions and relative deltas rather than a single side-by-side result.

The AMD Radeon R7 M445 posts an average benchmark score of 5358 in Geekbench OpenCL. That places it at the 31st percentile among all GPUs in the database. Its nearest rivals are tightly clustered: the Intel UHD Graphics P630 averages 5370, a delta of -0.2%, meaning the AMD part trails by a negligible margin. The NVIDIA GeForce 840M sits at 5322, putting the R7 M445 ahead by 0.7%. The NVIDIA GeForce 930A scores 5317, a 0.8% deficit to the AMD chip, and the NVIDIA GeForce GTX 980M lands at 5308, which the R7 M445 beats by 0.9%. These are extremely narrow margins, all within a single percentage point, indicating that the R7 M445 is essentially performance-equivalent to a broad range of older mobile and entry-level parts.

The NVIDIA GeForce RTX 3080 12 GB, by contrast, posts a score of 4791 in 3DMark Steel Nomad DX12. That result places it at the 28th percentile among all GPUs. Its nearest rivals are similarly tight: the AMD Radeon R5 M255 averages 4788, a delta of 0.1% in favor of the RTX card. The AMD Radeon R5 M335 scores 4752, which the RTX 3080 12 GB beats by 0.8%. The NVIDIA GeForce 940MX averages 4844, putting the RTX 3080 12 GB behind by -1.1%, and the NVIDIA GeForce GTX 560M scores 4855, a -1.3% deficit for the RTX card.

The striking takeaway is that neither GPU dominates its own benchmark category with a commanding lead. Both parts are surrounded by rivals that score within roughly 1.3% in either direction. The R7 M445's best win is a 0.9% margin over the GTX 980M, while the RTX 3080 12 GB's best win is a 0.8% margin over the R5 M335. The RTX card's largest deficit is -1.3% against the GTX 560M, and the R7 M445's largest deficit is -0.2% against the Intel UHD Graphics P630.

Because the two GPUs were tested with different workloads (OpenCL versus DX12) and scored on different scales, direct numerical comparison is not meaningful. The data does not support a claim that one is "faster" than the other; it only shows each part's position relative to its own peer group.

Architecture Differences

The AMD Radeon R7 M445 is built on the Meso chip using the GCN 3.0 architecture, fabricated on a 28 nm process at TSMC. It packs 1,550 million transistors into a 125 mm² die, yielding a transistor density of 12.4 million per square millimeter. The GPU operates with a base clock of 780 MHz and a boost clock of 920 MHz. Memory runs at 1000 MHz with 4 Gbps effective throughput. The card features 4 GB of GDDR5 memory on a 64-bit bus, providing 32.00 GB/s of bandwidth. Compute resources include 320 shading units, 20 texture mapping units, and 8 raster output units. Pixel rate is 7.360 GPixel/s, texture rate is 18.40 GTexel/s, and FP32 performance is 588.8 GFLOPS, with FP16 at the same 588.8 GFLOPS (1:1 ratio). The interface is PCIe 3.0 x8, and display outputs are listed as portable device dependent. It supports DirectX 12 (12_0), OpenGL 4.6, and Vulkan 1.2.170. The slot width is IGP, indicating an integrated-style form factor for laptops.

The NVIDIA GeForce RTX 3080 12 GB is a fundamentally different class of hardware. It uses the GA102 chip with the Ampere architecture, built on an 8 nm process at Samsung. Transistor count is 28,300 million on a 628 mm² die, for a density of 45.1 million per square millimeter. Base clock is 1260 MHz, boost clock is 1710 MHz, and memory runs at 1188 MHz with 19 Gbps effective. The card has 12 GB of GDDR6X on a 384-bit bus, delivering 912.4 GB/s of bandwidth. Compute hardware includes 8960 shading units, 280 TMUs, and 96 ROPs. It also carries 70 RT cores and 280 tensor cores, features entirely absent from the R7 M445. Pixel rate is 164.2 GPixel/s, texture rate is 478.8 GTexel/s, and FP32 performance is 30.64 TFLOPS, with FP16 at 30.64 TFLOPS (1:1). The interface is PCIe 4.0 x16, and display outputs include one HDMI 2.1 and three DisplayPort 1.4a ports. The card is dual-slot, requires a single 12-pin power connector, and has a TDP of 350 W with a suggested PSU of 750 W. Physical dimensions are 285 mm in length, 112 mm in height, and 40 mm in width.

The process node difference is stark: 28 nm versus 8 nm. That translates into a transistor density more than 3.6 times higher on the NVIDIA side. The memory subsystem is also radically different, with the RTX card offering 12 GB of GDDR6X versus 4 GB of GDDR5, a 384-bit bus versus 64-bit, and 912.4 GB/s versus 32.00 GB/s. The RTX 3080 12 GB also supports DirectX 12 Ultimate (12_2), while the R7 M445 is limited to DirectX 12 (12_0). Vulkan support also differs, with the RTX card at version 1.4 versus 1.2.170 on the AMD part.

Where Each One Wins

The AMD Radeon R7 M445 is positioned for extremely light workloads. Its 320 shading units and 8 ROPs suggest a part designed for basic display output and minimal 3D acceleration. The 4 GB GDDR5 memory on a 64-bit bus is sufficient for older or less demanding titles, but the 32.00 GB/s bandwidth is a hard ceiling for any texture-heavy scene. The 31st percentile standing indicates it sits slightly above the median in the database, but that percentile is achieved among a field that includes many integrated and entry-level parts. Its nearest rivals, all within 0.9%, show that it is interchangeable with the Intel UHD Graphics P630, GeForce 840M, GeForce 930A, and GTX 980M in OpenCL work. This is a part for legacy systems or secondary machines where power efficiency and portability matter more than frame rates.

The NVIDIA GeForce RTX 3080 12 GB, despite its lower 28th percentile, is a different beast entirely. The 3DMark Steel Nomad DX12 benchmark is a modern, demanding workload, and scoring 4791 in that test is not comparable to the R7 M445's OpenCL result. The RTX card's 8960 shading units, 280 TMUs, and 96 ROPs provide massive raw throughput. The 70 RT cores and 280 tensor cores enable hardware-accelerated ray tracing and AI-based features, which the R7 M445 cannot perform at all. The 12 GB GDDR6X frame buffer with 912.4 GB/s bandwidth is suited for high-resolution textures and heavy compute tasks. The 350 W TDP and dual-slot cooler indicate a desktop-class part intended for sustained high-load operation.

The practical split is clear: the R7 M445 wins on portability and low power draw, while the RTX 3080 12 GB wins on every aspect of raw performance, feature set, and memory capacity. The data does not show a scenario where the R7 M445 outperforms the RTX card; the architectures are separated by multiple generations and market tiers.

The Verdict

For users seeking a GPU for basic productivity, light media playback, or very old games, the AMD Radeon R7 M445 is the appropriate choice. Its 5358 OpenCL score and 31st percentile rank show it is competitive with its immediate peers, and its IGP form factor makes it suitable for thin-and-light laptops. The 0.9% margin over the GTX 980M is the best result in its group, but that is a marginal victory, not a decisive one.

For anyone needing modern gaming, ray tracing, AI acceleration, or high-bandwidth compute, the NVIDIA GeForce RTX 3080 12 GB is the only option between these two. Its 4791 score in 3DMark Steel Nomad DX12, while low in percentile terms, is achieved in a much more demanding test. The 70 RT cores and 280 tensor cores are features the R7 M445 simply does not have. The 12 GB GDDR6X memory and 912.4 GB/s bandwidth are in a different league from the R7 M445's 4 GB and 32.00 GB/s.

The data does not support a single "best" choice. It supports a usage-based decision. The R7 M445 is for legacy, low-power, portable systems. The RTX 3080 12 GB is for desktop performance enthusiasts. The launch MSRP for the RTX 3080 12 GB is 799 USD.

FAQ

Q: How does the AMD Radeon R7 M445 compare to its nearest rival, the Intel UHD Graphics P630?

A: The R7 M445 scores 5358 in Geekbench OpenCL, while the Intel UHD Graphics P630 averages 5370. That is a delta of -0.2%, meaning the AMD part trails by a negligible margin.

Q: What is the best benchmark result for the NVIDIA GeForce RTX 3080 12 GB?

A: The recorded data shows a single result: 4791 in 3DMark Steel Nomad DX12, which places it at the 28th percentile among all GPUs.

Q: Does the RTX 3080 12 GB support hardware ray tracing?

A: Yes, it includes 70 RT cores and 280 tensor cores, which enable hardware-accelerated ray tracing and AI workloads. The R7 M445 has no such cores.

Q: What memory configuration does the R7 M445 use?

A: It uses 4 GB of GDDR5 on a 64-bit bus, providing 32.00 GB/s of bandwidth. The RTX 3080 12 GB, by contrast, uses 12 GB of GDDR6X on a 384-bit bus for 912.4 GB/s.

Q: Which GPU has a higher transistor density?

A: The RTX 3080 12 GB has a density of 45.1 million transistors per square millimeter, versus 12.4 million for the R7 M445. This is due to the 8 nm process versus the 28 nm process.

Q: Are the two GPUs comparable in any benchmark?

A: No. The R7 M445 was tested with Geekbench OpenCL, while the RTX 3080 12 GB was tested with 3DMark Steel Nomad DX12. There are no shared benchmark results in the database.