AMD Ryzen Z2 A GPU vs Intel UHD Graphics 770 Mobile Comparison

Head-to-Head Benchmarks

The database contains no recorded head-to-head benchmark scores for the AMD Ryzen Z2 A GPU versus the Intel UHD Graphics 770 Mobile. Both entries show an average benchmark score of 0, and neither unit has any benchmark entries tied to its profile. This absence of recorded data means the comparative performance figures cannot be derived from the measurements available. The percentileVsAllGpus field places both parts at the 50th percentile, which indicates a midpoint ranking among all GPUs tracked in the database, but it does not translate into a direct performance comparison between the two.

What can be stated from the recorded specifications is the theoretical throughput ceiling for each GPU. The AMD Ryzen Z2 A GPU delivers 1.638 TFLOPS of FP32 compute, while the Intel UHD Graphics 770 Mobile delivers 819.2 GFLOPS. The AMD part therefore offers exactly double the FP32 throughput of the Intel part. In FP16, the AMD GPU reaches 3.277 TFLOPS, again exactly double the Intel GPU's 1.638 TFLOPS. These figures come directly from the specification records and represent the raw arithmetic capability of each chip, not application-level results.

Pixel throughput follows the same doubling pattern. The AMD GPU records a pixel rate of 25.60 GPixel/s, while the Intel GPU records 12.80 GPixel/s. Texture rate is 51.20 GTexel/s for the AMD part and 25.60 GTexel/s for the Intel part. In both rasterization metrics, the AMD Ryzen Z2 A GPU holds a 2x advantage over the Intel UHD Graphics 770 Mobile. These are fixed-function pipeline rates derived from the core counts and clock speeds recorded in the database.

The lack of benchmark entries means the database cannot confirm whether real-world workloads scale linearly with these theoretical rates. Memory bandwidth differences may alter the outcome in memory-bound scenarios, as the AMD GPU has a dedicated 102.4 GB/s LPDDR5 interface, while the Intel GPU relies on system shared memory with bandwidth described as system dependent. The recorded data indicates the AMD part should have a significant throughput lead, but the absence of measured scores prevents a definitive verdict from the benchmark database.

Architecture Differences

The AMD Ryzen Z2 A GPU uses the Van Gogh chip built on RDNA 2.0 architecture, fabricated by TSMC on a 7 nm process. The Intel UHD Graphics 770 Mobile uses the Raptor Lake chip built on Generation 12.2 architecture, fabricated by Intel on a 10 nm process. The process node difference gives AMD a manufacturing advantage in transistor density, as the database records 2,400 million transistors on a 163 mm² die for the AMD part, yielding a transistor density of 14.7M per mm². The Intel part has no transistor count, die size, or density figures recorded in the database.

The AMD GPU integrates 512 shading units, 32 texture mapping units, and 16 render output units. The Intel GPU integrates 256 shading units, 16 TMUs, and 8 ROPs. In every execution resource category, the AMD part has double the hardware of the Intel part. The AMD GPU also includes 8 ray tracing cores, while the Intel GPU records no ray tracing cores at all. Neither part has tensor cores recorded in the database.

Clock behavior differs between the two. The AMD GPU has a base clock of 1000 MHz and a boost clock of 1600 MHz. The Intel GPU has a base clock of 300 MHz and the same 1600 MHz boost clock. The higher base clock on the AMD part suggests it maintains a higher minimum performance floor when not boosting. Both parts cap out at the same 1600 MHz boost frequency.

Memory architecture is a fundamental split. The AMD Ryzen Z2 A GPU uses 16 GB of LPDDR5 memory on a 128 bit bus, producing 102.4 GB/s of dedicated bandwidth. The Intel UHD Graphics 770 Mobile uses system shared memory with a system shared bus width and system dependent bandwidth. The AMD part has a fixed memory pool; the Intel part draws from whatever system memory is available. The AMD memory clock is recorded as 800 MHz with 6.4 Gbps effective speed, while the Intel memory clock is listed simply as system shared.

API support differs in the DirectX version. The AMD GPU supports DirectX 12 Ultimate (12_2), while the Intel GPU supports DirectX 12 (12_1). Both support OpenGL 4.6 and Vulkan 1.4. The DirectX 12 Ultimate designation on the AMD part aligns with its ray tracing capability and feature level 12_2, whereas the Intel part lacks the recorded ray tracing hardware and stops at feature level 12_1.

Power consumption is identical at 15 W TDP for both parts. The Intel GPU is classified as an IGP with a ring bus interface, while the AMD GPU has no bus interface recorded. Display output on the AMD part is a single USB Type-C connection; the Intel part lists portable device dependent outputs, meaning the display connectivity depends on the host device.

Where Each One Wins

The AMD Ryzen Z2 A GPU wins in raw compute throughput. The recorded FP32 figure of 1.638 TFLOPS is double the 819.2 GFLOPS of the Intel UHD Graphics 770 Mobile. The FP16 figure of 3.277 TFLOPS is double the Intel part's 1.638 TFLOPS. Any workload that scales with shader arithmetic will favor the AMD GPU based on the specification data.

The AMD GPU wins in rasterization throughput. Its 25.60 GPixel/s pixel rate and 51.20 GTexel/s texture rate are both double the Intel part's 12.80 GPixel/s and 25.60 GTexel/s. Fill-rate-bound rendering tasks, such as high-resolution texture sampling or heavy overdraw, should benefit from the AMD part's larger ROP and TMU counts.

The AMD GPU wins in memory bandwidth and capacity. The dedicated 102.4 GB/s bandwidth from 16 GB of LPDDR5 on a 128 bit bus contrasts with the Intel part's system dependent bandwidth and system shared capacity. Memory-intensive workloads, including large texture streaming or data-heavy compute, have a fixed resource on the AMD side versus a variable one on the Intel side.

The AMD GPU wins on ray tracing, as it is the only one of the two with recorded ray tracing cores. The 8 ray tracing cores give it a hardware path for accelerated ray tracing workloads that the Intel GPU lacks entirely. The DirectX 12 Ultimate support on the AMD part further reinforces this advantage, as the feature level 12_2 encompasses ray tracing and mesh shaders, features not present in the Intel part's DirectX 12 (12_1) profile.

The Intel UHD Graphics 770 Mobile wins on manufacturing integration. It is built on Intel's own 10 nm process and functions as an IGP with a ring bus interface, meaning it is designed to be embedded in a Raptor Lake processor with no separate memory controller overhead. The system shared memory approach means the Intel GPU can scale with whatever memory the host system provides, which could be advantageous in configurations where system memory bandwidth is high.

The Intel GPU also wins on release timing in the database, with a release date of 2023-01-03, while the AMD part is recorded as 2024-12-31. Both parts are listed as active production status. The Intel part has a recorded successor, Arc Graphics-M, indicating an established upgrade path, while the AMD part has no predecessor or successor listed.

Specification Differences

The two GPUs differ in the following recorded specification fields:

• Process node: AMD is 7 nm; Intel is 10 nm
• Foundry: AMD is TSMC; Intel is Intel
• Transistors: AMD is 2,400 million; Intel is not recorded
• Die size: AMD is 163 mm²; Intel is not recorded
• Transistor density: AMD is 14.7M / mm²; Intel is not recorded
• Base clock: AMD is 1000 MHz; Intel is 300 MHz
• Boost clock: both are 1600 MHz
• Memory clock: AMD is 800 MHz 6.4 Gbps effective; Intel is system shared
• Memory size: AMD is 16 GB; Intel is system shared
• Memory type: AMD is LPDDR5; Intel is system shared
• Bus width: AMD is 128 bit; Intel is system shared
• Bandwidth: AMD is 102.4 GB/s; Intel is system dependent
• Shading units: AMD is 512; Intel is 256
• TMUs: AMD is 32; Intel is 16
• ROPs: AMD is 16; Intel is 8
• Ray tracing cores: AMD is 8; Intel is not recorded
• Pixel rate: AMD is 25.60 GPixel/s; Intel is 12.80 GPixel/s
• Texture rate: AMD is 51.20 GTexel/s; Intel is 25.60 GTexel/s
• FP32: AMD is 1.638 TFLOPS; Intel is 819.2 GFLOPS
• FP16: AMD is 3.277 TFLOPS; Intel is 1.638 TFLOPS
• TDP: both are 15 W
• Bus interface: AMD is not recorded; Intel is ring bus
• Display outputs: AMD is 1x USB Type-C; Intel is portable device dependent
• DirectX: AMD is 12 Ultimate (12_2); Intel is 12 (12_1)
• Release date: AMD is 2024-12-31; Intel is 2023-01-03
• Successor: AMD has none recorded; Intel is Arc Graphics-M

Identical fields include the 15 W TDP, 1600 MHz boost clock, OpenGL 4.6 support, Vulkan 1.4 support, active production status, and the 50th percentile ranking among all GPUs.

FAQ

Q: Which GPU has higher FP32 compute performance?

A: The AMD Ryzen Z2 A GPU records 1.638 TFLOPS, exactly double the 819.2 GFLOPS of the Intel UHD Graphics 770 Mobile.

Q: Do both GPUs support the same DirectX version?

A: No. The AMD GPU supports DirectX 12 Ultimate (12_2), while the Intel GPU supports DirectX 12 (12_1). Both support OpenGL 4.6 and Vulkan 1.4.

Q: Does the Intel UHD Graphics 770 Mobile have ray tracing hardware?

A: No ray tracing cores are recorded for the Intel GPU. The AMD Ryzen Z2 A GPU has 8 ray tracing cores.

Q: What is the memory configuration of each GPU?

A: The AMD GPU uses 16 GB of LPDDR5 on a 128 bit bus with 102.4 GB/s bandwidth. The Intel GPU uses system shared memory with system dependent bandwidth.

Q: Which GPU has a higher base clock speed?

A: The AMD Ryzen Z2 A GPU has a base clock of 1000 MHz, compared to 300 MHz for the Intel UHD Graphics 770 Mobile. Both have a 1600 MHz boost clock.

Q: Are there any benchmark scores recorded for either GPU?

A: The database shows no benchmark entries for either GPU. Both have an average benchmark score of 0 and a percentile ranking of 50 among all GPUs.