AMD Radeon RX Vega M GH vs NVIDIA CMP 70HX Comparison

The NVIDIA CMP 70HX and AMD Radeon RX Vega M GH are two very different products that happen to land near each other in aggregate benchmark scores. The CMP 70HX is a dual-slot, mining-oriented card based on Ampere, while the RX Vega M GH is a 14nm integrated GPU (IGP) from the GCN 4.0 era. Their average benchmark scores are separated by only 4.2%, but the way they achieve those scores could not be more different. This analysis breaks down the head-to-head data, architectural gaps, and which use-case each part serves best.

Head-to-Head Benchmarks

The two benchmark results paint a split picture. In Geekbench OpenCL, the AMD Radeon RX Vega M GH scores 27,125, while the NVIDIA CMP 70HX scores 25,135. That gives AMD a 7.3% lead in this compute-oriented test. The delta is notable because the Vega M GH achieves it with far fewer shading units and a much older architecture. However, the tables turn decisively in Geekbench Vulkan. There, the NVIDIA CMP 70HX scores 35,817 against the AMD part’s 31,268, a 14.5% advantage for NVIDIA. This is a substantial swing; NVIDIA wins the Vulkan test by nearly double the margin that AMD wins the OpenCL test.

Looking at the aggregate picture, the CMP 70HX holds an average benchmark score of 30,476, compared to 29,197 for the RX Vega M GH. That is a 4.2% overall edge for NVIDIA. The CMP 70HX also sits at the 75th percentile among all GPUs, while the RX Vega M GH sits at the 74th percentile. In practical terms, these two parts are essentially in the same performance tier despite the lopsided individual test results. The CMP 70HX’s nearest rivals include the NVIDIA Tesla M60 (average score 30,490, 0% delta), the AMD Radeon RX 6700 (30,433, 0.1% delta), and the AMD Radeon RX 6800 (30,095, 1.3% delta). The RX Vega M GH’s nearest rivals include the AMD FirePro W8000 (29,211, 0% delta), Intel Arc A370M (29,175, 0.1% delta), and AMD Radeon RX 470 (28,996, 0.7% delta). The data shows that while the CMP 70HX edges out the Vega M GH on average, neither part is a clear winner across all workloads. One wins OpenCL, the other wins Vulkan, and the overall scores are close enough that the deciding factor will be the specific application’s API preference.

Architecture Differences

The architectural gap between these two is generational. The NVIDIA CMP 70HX uses the GA104 chip built on Samsung’s 8nm process, while the AMD Radeon RX Vega M GH uses the Polaris 22 chip on GlobalFoundries’ 14nm process. The CMP 70HX packs 17,400 million transistors on a 392 mm² die, resulting in a transistor density of 44.4M per mm². The Vega M GH has 5,000 million transistors on a 208 mm² die, with a density of 24.0M per mm². That means the NVIDIA part has over three times the transistor count and nearly twice the die area.

The memory subsystems are also fundamentally different. The CMP 70HX has 8 GB of GDDR6X on a 256-bit bus, delivering 608.3 GB/s of bandwidth. The Vega M GH has 4 GB of HBM2 on a 1024-bit bus, but only achieves 204.8 GB/s. Despite having a much wider bus, the Vega M GH’s older HBM2 implementation runs at 800 MHz (1600 Mbps effective), which severely limits its bandwidth compared to the CMP 70HX’s 1188 MHz memory clock (19 Gbps effective). This bandwidth difference is critical for high-resolution textures and compute workloads.

Compute resources differ starkly. The CMP 70HX has 3,840 shading units, 120 TMUs, and 64 ROPs, plus 30 RT cores and 120 tensor cores. The Vega M GH has only 1,536 shading units, 96 TMUs, and 64 ROPs, with no RT or tensor cores. This explains the FP32 throughput gap: the CMP 70HX delivers 10.71 TFLOPS, while the Vega M GH delivers 3.656 TFLOPS. Both achieve a 1:1 FP16 ratio, but the NVIDIA part’s raw compute is nearly triple that of the AMD part. The CMP 70HX also runs at higher clocks — 1365 MHz base and 1395 MHz boost versus 1063 MHz base and 1190 MHz boost for the AMD part. Pixel rate favors NVIDIA at 89.28 GPixel/s versus 76.16 GPixel/s, and texture rate is also higher at 167.4 GTexel/s versus 114.2 GTexel/s.

API support differs as well. The CMP 70HX 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. The newer DirectX 12_2 feature set on the NVIDIA part is a notable advantage for modern games that use ray tracing or mesh shaders. The CMP 70HX also has a 12-pin power connector and a suggested PSU of 200 W, while the Vega M GH is an IGP with no discrete power connectors and a 100 W TDP.

The Verdict

Strictly from the data, the NVIDIA CMP 70HX is the stronger overall performer. It wins the Vulkan benchmark by 14.5%, holds a 4.2% higher average benchmark score, and offers significantly more compute throughput (10.71 TFLOPS vs 3.656 TFLOPS). It also has twice the memory capacity (8 GB vs 4 GB) and nearly three times the memory bandwidth (608.3 GB/s vs 204.8 GB/s). If you are building a system where raw compute, modern API support, and memory bandwidth matter, the CMP 70HX is the clear choice.

However, the AMD Radeon RX Vega M GH wins the OpenCL benchmark by 7.3%. This is not a trivial margin. For workloads that are optimized for OpenCL rather than Vulkan, the Vega M GH is actually faster. It also consumes far less power (100 W TDP vs no TDP listed for the CMP 70HX, but the suggested PSU of 200 W implies a higher draw). The Vega M GH is an IGP, meaning it requires no expansion slot and has no power connectors, making it suitable for compact or portable devices. The CMP 70HX, by contrast, is a dual-slot card with a 12-pin connector and no display outputs — it is explicitly designed for mining, not for use as a primary display adapter.

The pick depends on the workload. If you need Vulkan performance, modern DirectX 12 Ultimate features, or high-bandwidth memory, the CMP 70HX wins. If you need OpenCL performance, lower power draw, or an integrated form factor, the Vega M GH is the better fit. For most general-purpose compute or gaming scenarios, the data favors the CMP 70HX.

FAQ

Q: Which GPU has a higher average benchmark score?

A: The NVIDIA CMP 70HX has an average benchmark score of 30,476, while the AMD Radeon RX Vega M GH scores 29,197. That is a 4.2% advantage for NVIDIA.

Q: How do the two compare in the Vulkan benchmark?

A: The NVIDIA CMP 70HX scores 35,817 in Geekbench Vulkan, while the AMD Radeon RX Vega M GH scores 31,268. This gives NVIDIA a 14.5% lead.

Q: Does the AMD Radeon RX Vega M GH win any benchmark?

A: Yes, it wins the Geekbench OpenCL test with a score of 27,125, beating the NVIDIA CMP 70HX’s 25,135 by 7.3%.

Q: What is the memory capacity difference?

A: The NVIDIA CMP 70HX has 8 GB of GDDR6X memory, while the AMD Radeon RX Vega M GH has 4 GB of HBM2 memory.

Q: Which GPU has a higher transistor count?

A: The NVIDIA CMP 70HX has 17,400 million transistors, compared to 5,000 million for the AMD Radeon RX Vega M GH.

Q: What is the process node for each GPU?

A: The NVIDIA CMP 70HX is built on Samsung’s 8nm process, while the AMD Radeon RX Vega M GH is built on GlobalFoundries’ 14nm process.

Where Each One Wins

The NVIDIA CMP 70HX wins in scenarios that favor Vulkan, modern API features, and raw memory bandwidth. Its 14.5% Vulkan lead is the single largest margin in the head-to-head data. The 608.3 GB/s bandwidth and 8 GB capacity make it better suited for large datasets and high-resolution textures. The 10.71 TFLOPS FP32 throughput and 120 tensor cores also give it an edge in compute-heavy workloads that can leverage those resources. Additionally, its DirectX 12 Ultimate support means it can handle features like ray tracing and mesh shaders, which the Vega M GH cannot.

The AMD Radeon RX Vega M GH wins in OpenCL workloads, where its 7.3% advantage is significant. Its 100 W TDP and IGP form factor make it a lower-power, space-saving option. With 1,536 shading units and a 1024-bit memory bus, it still manages respectable performance despite its older GCN 4.0 architecture and lower clocks. The 204.8 GB/s bandwidth is lower, but the HBM2 memory’s wide bus helps in certain access patterns. For embedded or portable systems where board space and power are constrained, the Vega M GH’s integrated design is a practical advantage, as it requires no slot width, no power connectors, and no dedicated cooling beyond what the host device provides.

Specification Differences

The two GPUs differ in nearly every measurable specification. The NVIDIA CMP 70HX uses the GA104 chip on an 8nm Samsung process, while the AMD Radeon RX Vega M GH uses the Polaris 22 chip on a 14nm GlobalFoundries process. Transistor count is 17,400 million for NVIDIA versus 5,000 million for AMD, and die size is 392 mm² versus 208 mm². Clock speeds favor NVIDIA: 1365 MHz base and 1395 MHz boost versus 1063 MHz base and 1190 MHz boost. Memory is 8 GB GDDR6X on a 256-bit bus with 608.3 GB/s bandwidth for NVIDIA, versus 4 GB HBM2 on a 1024-bit bus with 204.8 GB/s bandwidth for AMD.

Shading units are 3,840 versus 1,536, TMUs are 120 versus 96, and ROPs are 64 for both. The CMP 70HX has 30 RT cores and 120 tensor cores; the Vega M GH has none. Pixel rate is 89.28 GPixel/s versus 76.16 GPixel/s, and texture rate is 167.4 GTexel/s versus 114.2 GTexel/s. FP32 compute is 10.71 TFLOPS versus 3.656 TFLOPS. The CMP 70HX is dual-slot with a 12-pin power connector and a 200 W suggested PSU; the Vega M GH is an IGP with a 100 W TDP and no power connectors. Bus interface is PCIe 1.0 x4 for NVIDIA versus IGP for AMD. The CMP 70HX has no display outputs, while the Vega M GH’s outputs are portable device dependent. API support differs: DirectX 12 Ultimate (12_2) versus DirectX 12 (12_0), with Vulkan 1.4 versus 1.3. The CMP 70HX measures 267 mm in length and 112 mm in height, while the Vega M GH has no listed dimensions.