AMD Radeon RX Vega M GH vs NVIDIA GeForce RTX 2080 Ti Comparison

The GeForce RTX 2080 Ti and the Radeon RX Vega M GH represent two radically different approaches to GPU design from the same era. The former is a flagship desktop part engineered for maximum throughput, while the latter is a mobile-focused integrated graphics processor. This analysis compares the two based strictly on benchmark data and architectural specifications.

Head-to-Head Benchmarks

The direct comparison between these two GPUs is limited to two shared benchmark tests, and the results are decisively one-sided. In the Geekbench OpenCL test, the NVIDIA GeForce RTX 2080 Ti scores 128,171 points, while the AMD Radeon RX Vega M GH manages only 27,125 points. This translates to a staggering 372.5% advantage for the NVIDIA part. The gap is similarly enormous in the Geekbench Vulkan test, where the RTX 2080 Ti scores 132,930 versus the Vega M GH’s 31,268, a delta of 325.1% in favor of NVIDIA.

These are not marginal wins; they are generational chasms. The data shows that in every shared benchmark, the RTX 2080 Ti delivers over four times the performance of the Vega M GH. The RTX 2080 Ti secures 2 wins, while the Vega M GH secures none. While the Vega M GH’s average benchmark score of 29,197 places it near the RTX 2080 Ti’s closest rivals (the AMD FirePro W8000 is a 0% delta, and the Intel Arc A370M is a 0.1% delta), the RTX 2080 Ti’s average score of 29,783 is in a different performance tier entirely, sitting near the RTX 5070 Mobile and RTX 3070 Ti.

Looking at the percentile rankings, both cards are surprisingly close: the RTX 2080 Ti is in the 75th percentile of all GPUs, while the Vega M GH is in the 74th percentile. This indicates that while the Vega M GH is a competent performer relative to the entire GPU landscape, its absolute performance ceiling is far below the RTX 2080 Ti’s floor. The RTX 2080 Ti’s performance in individual tests like Passmark G3D (21,548) and GPU Compute (10,056) underscores its compute-heavy design, though no comparable Vega M GH numbers exist for those tests.

Architecture Differences

The fundamental architectural divide is apparent from the process node. The RTX 2080 Ti is built on TSMC’s 12 nm process and uses the TU102 chip, which is part of the Turing architecture. The Vega M GH uses GlobalFoundries’ 14 nm process with the Polaris 22 chip, based on the older GCN 4.0 architecture. This difference in fabrication technology contributes to a massive transistor disparity: the TU102 packs 18,600 million transistors on a 754 mm² die, while the Polaris 22 contains only 5,000 million transistors on a 208 mm² die. The transistor density is nearly identical (24.7M / mm² for NVIDIA versus 24.0M / mm² for AMD), but the sheer scale of the NVIDIA chip is over three times larger.

Core configuration differences are equally stark. The RTX 2080 Ti features 4,352 shading units, 272 texture mapping units, and 88 ROPs. The Vega M GH has 1,536 shading units, 96 TMUs, and 64 ROPs. The NVIDIA part also includes dedicated hardware that the AMD chip lacks entirely: 68 RT cores for ray tracing and 544 tensor cores for AI acceleration. The Vega M GH has no equivalent hardware, meaning it must rely on software-based approaches for these workloads.

Memory architecture further separates these two. The RTX 2080 Ti uses 11 GB of GDDR6 memory on a 352-bit bus, delivering 616.0 GB/s of bandwidth. The Vega M GH uses 4 GB of HBM2 memory on a much wider 1024-bit bus, but its bandwidth is only 204.8 GB/s due to a lower memory clock of 800 MHz (1600 Mbps effective). The NVIDIA card’s memory clock runs at 1750 MHz (14 Gbps effective). Clock speeds for the cores also favor NVIDIA: the RTX 2080 Ti has a 1350 MHz base and 1545 MHz boost, while the Vega M GH operates at 1063 MHz base and 1190 MHz boost.

The Verdict

The data is unambiguous: the GeForce RTX 2080 Ti is the superior performer in every measurable way. Its FP32 compute of 13.45 TFLOPS dwarfs the Vega M GH’s 3.656 TFLOPS, and its pixel rate of 136.0 GPixel/s is nearly double the AMD part’s 76.16 GPixel/s. The texture rate shows an even wider gap, with the RTX 2080 Ti achieving 420.2 GTexel/s versus 114.2 GTexel/s for the Vega M GH. The RTX 2080 Ti is also the only one with support for DirectX 12 Ultimate (12_2), while the Vega M GH is limited to DirectX 12 (12_0). Both support OpenGL 4.6, but the NVIDIA card supports Vulkan 1.4 while the AMD card supports Vulkan 1.3.

For a desktop user seeking maximum performance, the RTX 2080 Ti is the only rational choice based on this data. Its 250 W TDP and dual-slot design with 2x 8-pin power connectors reflect its high-performance positioning. The Vega M GH, with its 100 W TDP and IGP slot width, is designed for entirely different use cases—it is an integrated graphics processor with no power connectors, no dimensions listed, and "Portable Device Dependent" display outputs. The RTX 2080 Ti, by contrast, offers 1x HDMI 2.0, 3x DisplayPort 1.4a, and 1x USB Type-C outputs.

Specification Differences

The two GPUs differ across nearly every specification field. The RTX 2080 Ti uses a 12 nm process, while the Vega M GH uses 14 nm. NVIDIA’s chip has 18,600 million transistors versus AMD’s 5,000 million. The die sizes are 754 mm² and 208 mm² respectively. Clock speeds differ: the RTX 2080 Ti runs at 1350 MHz base and 1545 MHz boost, while the Vega M GH runs at 1063 MHz base and 1190 MHz boost. Memory configurations are completely different: the RTX 2080 Ti has 11 GB of GDDR6 on a 352-bit bus with 616.0 GB/s bandwidth, while the Vega M GH has 4 GB of HBM2 on a 1024-bit bus with 204.8 GB/s bandwidth. The NVIDIA card has 4,352 shading units, 272 TMUs, and 88 ROPs; the AMD card has 1,536 shading units, 96 TMUs, and 64 ROPs. The RTX 2080 Ti has 68 RT cores and 544 tensor cores; the Vega M GH has none. Pixel rates are 136.0 GPixel/s versus 76.16 GPixel/s. Texture rates are 420.2 GTexel/s versus 114.2 GTexel/s. FP32 performance is 13.45 TFLOPS versus 3.656 TFLOPS. The RTX 2080 Ti supports FP16 at 26.90 TFLOPS (2:1), while the Vega M GH supports FP16 at 3.656 TFLOPS (1:1). TDP is 250 W versus 100 W. The RTX 2080 Ti is dual-slot with 2x 8-pin connectors and a 600 W suggested PSU; the Vega M GH is an IGP with no connectors or PSU requirement. The RTX 2080 Ti uses PCIe 3.0 x16, while the Vega M GH uses an IGP bus interface.

FAQ

Q: Which GPU has higher raw compute performance?

A: The NVIDIA GeForce RTX 2080 Ti has 13.45 TFLOPS of FP32 performance, compared to 3.656 TFLOPS for the AMD Radeon RX Vega M GH.

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

A: The RTX 2080 Ti offers 616.0 GB/s of bandwidth from its 11 GB GDDR6 memory on a 352-bit bus, while the Vega M GH offers 204.8 GB/s from its 4 GB HBM2 memory on a 1024-bit bus.

Q: Does the Vega M GH support ray tracing?

A: No. The Vega M GH has no RT cores listed, while the RTX 2080 Ti includes 68 RT cores for hardware-accelerated ray tracing.

Q: How do they compare in the Geekbench Vulkan benchmark?

A: The RTX 2080 Ti scores 132,930, which is 325.1% higher than the Vega M GH’s score of 31,268.

Q: What is the transistor density of each chip?

A: The RTX 2080 Ti has a transistor density of 24.7M / mm², while the Vega M GH has a density of 24.0M / mm².

Q: Which API levels does each card support?

A: The RTX 2080 Ti supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The Vega M GH supports DirectX 12 (12_0), OpenGL 4.6, and Vulkan 1.3.

Where Each One Wins

The GeForce RTX 8020 Ti wins in every category where data exists. It dominates in compute-intensive tasks such as OpenCL (372.5% ahead) and Vulkan (325.1% ahead). Its higher texture rate of 420.2 GTexel/s makes it far more capable for high-resolution texture-heavy gaming, and its 136.0 GPixel/s pixel rate supports higher fill-rate scenarios. The presence of RT cores and tensor cores gives it a definitive edge in ray-traced workloads and AI-accelerated features, neither of which the Vega M GH can handle with dedicated hardware. Its 11 GB of memory and higher bandwidth make it suitable for large datasets and 4K texture packs.

The Radeon RX Vega M GH, despite losing every benchmark, has its own niche based on physical characteristics rather than performance. Its 100 W TDP is less than half the RTX 2080 Ti’s 250 W, and its IGP form factor means it requires no additional power connectors and is designed for portable devices. Its 4 GB of HBM2 memory on a 1024-bit bus, while lower bandwidth, is still a unique configuration for an integrated part. The Vega M GH’s 74th percentile ranking shows it is not a weak GPU in absolute terms; it simply operates in a different performance class. For a user constrained by power and space, the Vega M GH is the only option, as the RTX 2080 Ti’s dimensions (267 mm length, 116 mm height, 35 mm width) and power requirements preclude its use in such systems. However, for any scenario where performance is the priority, the RTX 2080 Ti is the clear winner, with its nearest rivals being the RTX 5070 Mobile (0.5% slower) and RTX 3070 Ti (0.5% slower), placing it in the upper echelon of GPU performance.