AMD Radeon HD 7970M vs Intel Arc A770M Comparison

Launched years apart and built on fundamentally different architectures, the Intel Arc A770M and AMD Radeon HD 7970M represent two distinct eras of mobile graphics. The data shows the Arc A770M is the undisputed performance leader, but the HD 7970M's legacy and lower power footprint offer a different kind of appeal. This analysis breaks down the benchmark results, specifications, and architectural philosophies to determine which GPU is right for which user.

FAQ

Q: Which GPU is faster in the only shared benchmark, Geekbench OpenCL?

A: The Intel Arc A770M is decisively faster, scoring 89,494 compared to the AMD Radeon HD 7970M's 17,019. This represents a massive 425.8% advantage for the Intel part.

Q: How do these GPUs rank against all other graphics cards?

A: The Intel Arc A770M sits in the 62nd percentile of all GPUs, while the AMD Radeon HD 7970M is in the 60th percentile. Despite the huge performance gap in the shared test, their overall percentile rankings are surprisingly close.

Q: What is the memory configuration difference?

A: The Intel Arc A770M has 16 GB of GDDR6 memory on a 256-bit bus, delivering 512.0 GB/s of bandwidth. The AMD Radeon HD 7970M has 2 GB of GDDR5 memory on a 256-bit bus, providing 153.6 GB/s.

Q: What are the TDPs of these two mobile GPUs?

A: The Intel Arc A770M has a TDP of 120 W, while the AMD Radeon HD 7970M is rated at 100 W. The AMD part consumes less power despite being a much older design.

Q: What are the nearest rivals for the Intel Arc A770M based on average benchmark score?

A: Its closest competitors include the AMD Radeon RX 460 (0.1% faster), AMD FirePro D500 (0.8% slower), AMD Radeon Pro 5700 (1.1% slower), and NVIDIA GeForce RTX 3060 Mobile (1.2% slower).

Q: What is the production status of each GPU?

A: Both are listed as "End-of-life." The AMD Radeon HD 7970M has a release date of April 23, 2012, while the Intel Arc A770M's release date is not provided in the data.

The Verdict

The data paints an unambiguous picture for raw performance: the Intel Arc A770M is the clear winner, with its Geekbench OpenCL score dwarfing the AMD Radeon HD 7970M by over fivefold. For any user running compute workloads, modern DirectX 12 Ultimate games, or needing substantial VRAM, the Arc A770M is the only logical choice. Its 16 GB frame buffer and 512.0 GB/s bandwidth are in a different league.

However, the AMD Radeon HD 7970M is not without merit. Its lower 100 W TDP compared to the Arc's 120 W, combined with its status as a historical piece (released in 2012), makes it interesting for retro builds or low-power systems. The HD 7970M's average benchmark score of 17,019 places it near the NVIDIA GeForce GTX 690 (0.1% slower) and AMD Radeon RX 7600 XT (0.4% slower), which shows its aging architecture still holds a place in the performance hierarchy. Ultimately, the choice is between modern performance and legacy efficiency.

Head-to-Head Benchmarks

The only direct comparison available is the Geekbench OpenCL test, and the result is a landslide. The Intel Arc A770M scores 89,494, while the AMD Radeon HD 7970M scores 17,019. This translates to a 425.8% delta in favor of Intel. This single data point is enough to establish the Arc A770M as the dominant compute performer.

Looking at the broader benchmark suite, the Arc A770M shows its versatility. In 3DMark Steel Nomad (DX12), it scores 2,278. In PassMark, it achieves scores of 11,774 in G3D, 4,778 in GPU Compute, and 711 in G2D. Its Geekbench Vulkan score is 74,422. These results, combined with an average benchmark score of 18,383, place it just 1.2% above the NVIDIA GeForce RTX 3060 Mobile, a modern competitor. The HD 7970M, with only the one OpenCL benchmark, cannot match this breadth of testing.

Specification Differences

The core specifications reveal a generational chasm. The Intel Arc A770M has 4,096 shading units, 256 TMUs, and 128 ROPs, while the AMD Radeon HD 7970M has 1,280 shading units, 80 TMUs, and 32 ROPs. This massive difference in execution resources explains the performance gulf.

Memory is another stark contrast. The Arc A770M offers 16 GB of GDDR6 at 16 Gbps effective, yielding 512.0 GB/s of bandwidth. The HD 7970M offers just 2 GB of GDDR5 at 4.8 Gbps effective, yielding 153.6 GB/s. The clock speeds also differ: the Arc has a base clock of 1650 MHz and a boost of 2050 MHz, while the HD 7970M's core clocks are not listed. The memory clock for the HD 7970M is 1200 MHz.

Form factor and interface also differ. The Arc A770M is an IGP with a PCIe 4.0 x16 interface, while the HD 7970M is an MXM Module with an MXM-B (3.0) interface. The HD 7970M lists no power connectors, while the Arc's are not specified. The HD 7970M's release date is April 23, 2012, while the Arc's is not provided.

Architecture Differences

The two GPUs are built on completely different architectural philosophies. The Intel Arc A770M uses the Xe-HPG architecture on a 6 nm process from TSMC, with a die size of 406 mm² and 21,700 million transistors. This is a modern, feature-rich design.

The AMD Radeon HD 7970M uses the older GCN 1.0 architecture on a 28 nm process, also from TSMC, with a die size of 212 mm² and 2,800 million transistors. The Arc A770M has a transistor density of 53.4M per mm², far exceeding the HD 7970M's 13.2M per mm².

Feature support is a major differentiator. The Arc A770M supports DirectX 12 Ultimate (12_2), while the HD 7970M is limited to DirectX 12 (11_1). The Arc also has 32 dedicated ray tracing cores, which the HD 7970M lacks entirely. Vulkan support is also newer on Intel's part: version 1.4 versus 1.2.170 on AMD. Both support OpenGL 4.6.

The Arc A770M also boasts much higher theoretical throughput: 16.79 TFLOPS FP32 and 33.59 TFLOPS FP16 (2:1), compared to the HD 7970M's 2.176 TFLOPS FP32 and no listed FP16 capability. Pixel and texture rates are similarly lopsided: 262.4 GPixel/s and 524.8 GTexel/s for Intel versus 27.20 GPixel/s and 68.00 GTexel/s for AMD.

Where Each One Wins

The Intel Arc A770M wins in every measurable category. Its 425.8% lead in Geekbench OpenCL makes it the definitive choice for compute-heavy tasks like machine learning inference, video encoding, or scientific simulations. Its 16 GB VRAM and 512.0 GB/s bandwidth are essential for modern high-resolution textures and large datasets. Gamers benefit from DirectX 12 Ultimate support and ray tracing cores, which the HD 7970M cannot offer.

The AMD Radeon HD 7970M's lone victory is in power consumption. At 100 W TDP, it draws 20 W less than the Arc A770M. This could be a deciding factor for users building a low-power media center or a retro gaming laptop where battery life is paramount. Its smaller 212 mm² die and 2,800 million transistors also hint at a simpler, more power-efficient design for its era.

The HD 7970M's architecture, while outdated, is historically significant. Its GCN 1.0 design laid the groundwork for AMD's future. For a collector or someone interested in the evolution of mobile GPUs, it holds value. The data shows the HD 7970M's nearest rivals include the NVIDIA GeForce GTX 690 (-0.1%) and AMD Radeon RX 7600 XT (-0.4%), which suggests it is still a competent performer in its niche.

For the modern user, the choice is clear: the Arc A770M offers overwhelming performance and features. The HD 7970M is a relic, albeit a capable one, best suited for specific low-power or historical applications. The benchmark data leaves no room for ambiguity in this matchup.