AMD Ryzen Z2 GPU vs Intel UHD Graphics 770 Mobile Comparison

FAQ

Q: What are the core architecture differences between the AMD Ryzen Z2 GPU and the Intel UHD Graphics 770 Mobile?

A: The AMD Ryzen Z2 GPU uses the RDNA 3.0 architecture on a 4 nm TSMC process, while the Intel UHD Graphics 770 Mobile uses Generation 12.2 architecture on Intel's 10 nm process. The AMD chip is built on the Hawk Point design with 25,390 million transistors on a 178 mm² die, whereas Intel's implementation is an integrated graphics processor (IGP) within the Raptor Lake chip.

Q: How do the shading resources compare between these two GPUs?

A: The AMD Ryzen Z2 GPU has 768 shading units, 48 texture mapping units, 32 raster operating units, and 12 ray tracing cores. The Intel UHD Graphics 770 Mobile has 256 shading units, 16 TMUs, and 8 ROPs, with no dedicated ray tracing cores listed.

Q: What memory configurations do these GPUs use?

A: The AMD Ryzen Z2 GPU uses 16 GB of LPDDR5X memory on a 128-bit bus, delivering 119.9 GB/s of bandwidth. The Intel UHD Graphics 770 Mobile uses System Shared memory with a System Shared bus width, and its bandwidth is listed as System Dependent.

Q: How do the clock speeds differ?

A: The AMD Ryzen Z2 GPU has a base clock of 800 MHz and a boost clock of 2700 MHz, with memory clocked at 937 MHz (7.5 Gbps effective). The Intel UHD Graphics 770 Mobile has a base clock of 300 MHz and a boost clock of 1600 MHz, with memory speed listed as System Shared.

Q: What is the thermal design power for each GPU?

A: The AMD Ryzen Z2 GPU has a TDP of 28 W, while the Intel UHD Graphics 770 Mobile has a TDP of 15 W.

Q: Which GPU supports more advanced DirectX features?

A: The AMD Ryzen Z2 GPU supports DirectX 12 Ultimate (12_2), while the Intel UHD Graphics 770 Mobile supports DirectX 12 (12_1). Both support OpenGL 4.6 and Vulkan 1.4.

Where Each One Wins

The recorded data splits the two GPUs into clearly different usage profiles. The AMD Ryzen Z2 GPU dominates in raw compute throughput, pixel processing, and texture work. Its FP32 performance of 8.294 TFLOPS is an order of magnitude above Intel's 819.2 GFLOPS. The pixel rate of 86.40 GPixel/s versus 12.80 GPixel/s, and the texture rate of 129.6 GTexel/s versus 25.60 GTexel/s, place the AMD part decisively ahead for any workload that relies on shader execution or fill-rate-bound rendering.

The Intel UHD Graphics 770 Mobile wins in power efficiency at the system level, with a 15 W TDP compared to the AMD's 28 W. It also carries a different integration approach: it is an IGP on a Ring Bus interface, while the AMD part uses no bus interface listed and draws power through no connectors. For lightweight desktop workloads, media playback, or basic 2D acceleration, the Intel part uses less power and integrates into the Raptor Lake platform directly.

The AMD Ryzen Z2 GPU wins in memory bandwidth with 119.9 GB/s of dedicated LPDDR5X, while the Intel part depends on System Shared memory and System Dependent bandwidth. The AMD part also has a much higher boost clock at 2700 MHz versus 1600 MHz, and a higher base clock at 800 MHz versus 300 MHz.

For modern gaming features, the AMD part wins with 12 ray tracing cores and DirectX 12 Ultimate support. The Intel part has no ray tracing cores and caps out at DirectX 12 (12_1). The AMD GPU also has a 16 GB dedicated memory pool, which far exceeds what the Intel IGP can access through system shared memory.

Architecture Differences

The two GPUs come from entirely different design philosophies. The AMD Ryzen Z2 GPU is built on the RDNA 3.0 architecture, fabricated on a 4 nm process at TSMC. The chip is named Hawk Point and contains 25,390 million transistors packed into a 178 mm² die, giving a transistor density of 142.6 million transistors per square millimeter. The Intel UHD Graphics 770 Mobile uses the Generation 12.2 architecture, fabricated on Intel's 10 nm process, with no transistor count or die size listed in the database.

The AMD part is classified as a Console GPU (AMD) generation, while the Intel part is classified as HD Graphics-M (Raptor Lake). This distinction matters: the AMD GPU is a discrete-class part with its own 16 GB LPDDR5X memory, while the Intel UHD 770 Mobile is an integrated GPU that shares system memory.

The compute resources differ substantially. The AMD GPU has 768 shading units, 48 TMUs, 32 ROPs, and 12 ray tracing cores. The Intel GPU has 256 shading units, 16 TMUs, and 8 ROPs, with no ray tracing cores. The AMD GPU's FP16 performance matches its FP32 at 8.294 TFLOPS with a 1:1 ratio, while the Intel GPU's FP16 performance is 1.638 TFLOPS at a 2:1 ratio, indicating a different shader execution model.

The AMD GPU supports DirectX 12 Ultimate (12_2), which includes features like ray tracing and mesh shaders, while the Intel GPU supports DirectX 12 (12_1). Both support OpenGL 4.6 and Vulkan 1.4. The display output for the AMD part is a single USB Type-C port, while the Intel part's display outputs are listed as Portable Device Dependent.

The process node difference is significant: 4 nm versus 10 nm. This explains the AMD GPU's ability to fit 768 shading units and 12 ray tracing cores into a 178 mm² die while maintaining a 28 W TDP. The Intel part's 256 shading units at 10 nm with a 15 W TDP reflect a more conservative integration strategy.

Specification Differences

The database records the following specification differences between the two GPUs:

• Process Node: AMD uses 4 nm (TSMC); Intel uses 10 nm (Intel).
• Transistors: AMD has 25,390 million; Intel has no listed value.
• Die Size: AMD has 178 mm²; Intel has no listed value.
• Transistor Density: AMD has 142.6M / mm²; Intel has no listed value.
• Base Clock: AMD at 800 MHz; Intel at 300 MHz.
• Boost Clock: AMD at 2700 MHz; Intel at 1600 MHz.
• Memory Clock: AMD at 937 MHz (7.5 Gbps effective); Intel at System Shared.
• Memory Size: AMD has 16 GB; Intel has System Shared.
• Memory Type: AMD uses LPDDR5X; Intel uses System Shared.
• Memory Bus Width: AMD has 128 bit; Intel has System Shared.
• Memory Bandwidth: AMD has 119.9 GB/s; Intel has System Dependent.
• Shading Units: AMD has 768; Intel has 256.
• TMUs: AMD has 48; Intel has 16.
• ROPs: AMD has 32; Intel has 8.
• Ray Tracing Cores: AMD has 12; Intel has none listed.
• Pixel Rate: AMD at 86.40 GPixel/s; Intel at 12.80 GPixel/s.
• Texture Rate: AMD at 129.6 GTexel/s; Intel at 25.60 GTexel/s.
• FP32 Performance: AMD at 8.294 TFLOPS; Intel at 819.2 GFLOPS.
• FP16 Performance: AMD at 8.294 TFLOPS (1:1); Intel at 1.638 TFLOPS (2:1).
• TDP: AMD at 28 W; Intel at 15 W.
• Slot Width: AMD has none listed; Intel is an IGP.
• Bus Interface: AMD has none listed; Intel uses Ring Bus.
• Display Outputs: AMD has 1x USB Type-C; Intel has Portable Device Dependent.
• DirectX Support: AMD at 12 Ultimate (12_2); Intel at 12 (12_1).
• Release Date: AMD on 2024-12-31; Intel on 2023-01-03.
• Successor: AMD has none listed; Intel has Arc Graphics-M.

Both share OpenGL 4.6 and Vulkan 1.4 support. Both have a production status of Active. Neither has a listed launch MSRP.

Head-to-Head Benchmarks

The database contains no direct head-to-head benchmark scores for these two GPUs, and neither has an average benchmark score recorded. The wins are determined entirely from the specification and performance-rate data.

The biggest win for the AMD Ryzen Z2 GPU is in FP32 compute. The AMD part delivers 8.294 TFLOPS, which is approximately 10.1 times the Intel UHD Graphics 770 Mobile's 819.2 GFLOPS. In practical terms, this means the AMD GPU can process roughly ten times more floating-point operations per second, which directly translates to faster shader execution in games and compute workloads.

The pixel rate comparison shows a similar gap. The AMD GPU achieves 86.40 GPixel/s, which is approximately 6.75 times the Intel part's 12.80 GPixel/s. This affects how quickly the GPU can fill the screen with rendered pixels, a critical factor at high resolutions.

The texture rate gap is smaller but still decisive. The AMD GPU hits 129.6 GTexel/s versus 25.60 GTexel/s for the Intel part, a ratio of about 5.06 to 1. Textured scenes, especially those with detailed surfaces, will see a major performance difference.

Memory bandwidth is another clear win for AMD. The 119.9 GB/s of LPDDR5X bandwidth versus System Dependent bandwidth for the Intel part means the AMD GPU has a guaranteed, dedicated memory pipeline. The Intel part must compete with the CPU for system memory access, which typically reduces effective bandwidth.

The clock speed advantage also favors AMD. The 2700 MHz boost clock is 68.75% higher than the Intel part's 1600 MHz boost clock. The base clock of 800 MHz versus 300 MHz is a 166.67% advantage.

The Intel UHD Graphics 770 Mobile wins in TDP. At 15 W, it uses 46.43% less power than the AMD part's 28 W. For thin-and-light laptops or systems with tight thermal budgets, this difference matters. The Intel part also integrates through a Ring Bus interface, which may simplify system design compared to the AMD part's separate chip.

The Intel part also has a release date advantage in the database, launching on 2023-01-03 versus the AMD part's 2024-12-31. The AMD part is a newer design in the database's records.

The Verdict

The data points to a clear performance hierarchy. The AMD Ryzen Z2 GPU is the stronger part for any graphics-intensive task. It has 3 times the shading units, 3 times the TMUs, 4 times the ROPs, and 12 dedicated ray tracing cores that the Intel UHD Graphics 770 Mobile lacks entirely. Its FP32 throughput of 8.294 TFLOPS versus 819.2 GFLOPS, combined with 119.9 GB/s of dedicated memory bandwidth versus System Dependent bandwidth, makes it the only viable choice for gaming, 3D rendering, or GPU compute workloads.

The Intel UHD Graphics 770 Mobile serves a different purpose. Its 15 W TDP, compared to the AMD part's 28 W, makes it suitable for low-power systems where battery life and thermal output take priority over raw performance. Its status as an IGP on a Ring Bus interface means it is built directly into the Raptor Lake platform, which can simplify system design and reduce component count. For basic desktop tasks, video playback, and light 2D acceleration, the Intel part uses less power and integrates more tightly into its host platform.

The AMD Ryzen Z2 GPU's 16 GB of LPDDR5X memory is a decisive advantage for modern workloads. Games and creative applications increasingly require more than 8 GB of VRAM, and the AMD part has double that, dedicated and not shared with the CPU. The Intel part's System Shared memory means the GPU must borrow capacity from the system, which can cause contention and performance drops under memory pressure.

DirectX support also favors AMD. The 12 Ultimate (12_2) feature set on the AMD part includes ray tracing and other modern rendering features, while the Intel part is limited to DirectX 12 (12_1). The AMD part's 12 ray tracing cores provide hardware acceleration for this workload, which the Intel part cannot do at all.

The production status of both parts is Active, and neither has a listed successor in the database. The AMD part is newer, with a release date of 2024-12-31 versus the Intel part's 2023-01-03. The Intel part has a listed successor in Arc Graphics-M, suggesting a planned upgrade path within Intel's lineup.

For a user who needs graphics performance, the AMD Ryzen Z2 GPU is the clear choice from this data. For a user who needs minimal power draw and platform integration, the Intel UHD Graphics 770 Mobile is the appropriate part. The 28 W TDP difference is the main trade-off: the AMD part consumes nearly double the power of the Intel part but delivers roughly ten times the FP32 compute, nearly seven times the pixel rate, and five times the texture rate, along with dedicated ray tracing hardware and a dedicated 16 GB memory pool.