AMD Radeon 740M vs AMD Ryzen Z2 A GPU Comparison

AMD Radeon 740M and AMD Ryzen Z2 A GPU represent two distinct approaches to integrated graphics from the same manufacturer. The 740M is built on the Phoenix2 chip using RDNA 3.0 architecture, while the Ryzen Z2 A GPU uses the Van Gogh chip with RDNA 2.0. The database shows no direct head-to-head benchmark entries, so the comparison relies on recorded synthetic test scores, architectural specifications, and relative performance percentiles.

Head-to-Head Benchmarks

The AMD Radeon 740M has recorded benchmark results in the database. In the Geekbench OpenCL test, it scores 10172 points. In the Geekbench Vulkan test, it scores 15568 points. These two results produce an average benchmark score of 12870. The Ryzen Z2 A GPU currently has no recorded benchmark scores in the database, with an average benchmark score of 0. This absence of data means no direct numerical comparison is possible between the two GPUs in the measured tests.

The 740M sits at the 53rd percentile among all GPUs in the database. Its nearest rivals include the AMD FirePro W5100 with an average score of 12847, which is 0.2% behind the 740M. The AMD Radeon Pro 455 averages 12831, trailing by 0.3%. The NVIDIA GeForce GTX 590 also averages 12830, again 0.3% behind. On the other side, the AMD Radeon RX 580 averages 12928, which places it 0.4% ahead of the 740M. These small deltas indicate the 740M clusters tightly with older discrete graphics solutions, with all four rivals within less than half a percentage point of its average score.

The Ryzen Z2 A GPU holds the 50th percentile among all GPUs, three percentile points below the 740M. Without any recorded benchmark scores or nearest rivals, the database provides no measured performance data for direct comparison. The percentile value suggests it falls near the middle of the distribution, but the lack of scores means this ranking likely reflects its specification position rather than actual test results.

The FP32 compute figures offer a quantitative contrast. The 740M delivers 2.867 TFLOPS of FP32 performance. The Ryzen Z2 A GPU delivers 1.638 TFLOPS of FP32 performance. This represents a 75% advantage for the 740M in raw single-precision floating point throughput. In FP16, the 740M again outputs 2.867 TFLOPS with a 1:1 ratio, while the Ryzen Z2 A GPU outputs 3.277 TFLOPS with a 2:1 ratio. The Ryzen Z2 A GPU leads in FP16 by approximately 14%, but this relies on half-rate execution where it processes two FP16 operations per FP32 cycle. The 740M maintains full-rate FP16, which means its FP16 throughput matches its FP32 throughput.

Pixel and texture rates also diverge. The 740M achieves 22.40 GPixel/s and 44.80 GTexel/s. The Ryzen Z2 A GPU achieves 25.60 GPixel/s and 51.20 GTexel/s. The Ryzen Z2 A GPU holds a 14% advantage in pixel fill rate and a 14% advantage in texture fill rate. These rates derive from its higher ROP count (16 versus 8) and higher TMU count (32 versus 16), even though its clock speeds are lower.

The Verdict

The benchmark data indicates that the AMD Radeon 740M is the stronger performer in synthetic compute workloads. Its average benchmark score of 12870 places it above the Ryzen Z2 A GPU, which has no measured score. The 740M also holds a higher percentile ranking at 53 versus 50. For applications that rely on FP32 compute, such as many traditional rendering pipelines and general-purpose GPU workloads, the 740M delivers 75% more throughput. This is a substantial margin that would translate to faster shader compilation, physics simulations, and other compute-bound tasks.

The Ryzen Z2 A GPU, however, shows advantages in specific areas. Its FP16 throughput of 3.277 TFLOPS exceeds the 740M, which matters for workloads that can utilize half-precision arithmetic. Its pixel and texture rates are higher, suggesting better performance in fill-rate-limited scenarios. The Ryzen Z2 A GPU also carries 16 GB of dedicated LPDDR5 memory with 102.4 GB/s bandwidth, whereas the 740M relies on system-shared memory with bandwidth described as system dependent. For games or applications that must frequently access large textures or geometry buffers, the dedicated memory arrangement could reduce latency and improve consistency.

The production status for both GPUs is listed as Active. The 740M released on 2024-01-30, while the Ryzen Z2 A GPU released on 2024-12-31. The 740M has a predecessor listed as Navi II IGP and a successor as Navi III IGP. The Ryzen Z2 A GPU has no predecessor or successor recorded. The 740M uses a PCIe 4.0 x8 bus interface, while the Ryzen Z2 A GPU has no bus interface specified. The Ryzen Z2 A GPU lists a single USB Type-C display output, while the 740M's display outputs are motherboard dependent.

Architecture Differences

The two GPUs use different manufacturing processes and chip designs. The 740M is built on TSMC's 4 nm process node, while the Ryzen Z2 A GPU uses TSMC's 7 nm node. The 740M's Phoenix2 chip contains 20,900 million transistors on a 137 mm² die, yielding a transistor density of 152.6 million transistors per square millimeter. The Ryzen Z2 A GPU's Van Gogh chip contains 2,400 million transistors on a 163 mm² die, yielding a density of 14.7 million transistors per square millimeter. The 740M packs nearly nine times more transistors into a smaller area, reflecting the denser 4 nm process.

Architecturally, the 740M uses RDNA 3.0, while the Ryzen Z2 A GPU uses RDNA 2.0. This generational difference affects execution unit configuration. The 740M has 256 shading units, 16 texture mapping units, 8 render output units, and 4 ray tracing cores. The Ryzen Z2 A GPU has 512 shading units, 32 texture mapping units, 16 render output units, and 8 ray tracing cores. Despite having half the shading units, the 740M achieves higher FP32 throughput due to its significantly higher boost clock of 2800 MHz compared to 1600 MHz on the Ryzen Z2 A GPU. The base clocks also differ: 800 MHz for the 740M and 1000 MHz for the Ryzen Z2 A GPU.

The memory subsystems reflect different design goals. The 740M uses system-shared memory with no dedicated VRAM. Its memory type, bus width, and size are all listed as system shared, meaning they depend on the host CPU's memory configuration. The Ryzen Z2 A GPU integrates 16 GB of LPDDR5 memory on a 128-bit bus, providing 102.4 GB/s of bandwidth. The memory clock for the Ryzen Z2 A GPU is listed as 800 MHz with 6.4 Gbps effective data rate. This dedicated memory arrangement gives the Ryzen Z2 A GPU a fixed bandwidth figure, whereas the 740M's bandwidth varies with the system memory used.

Power consumption differs substantially. The 740M has a thermal design power of 45 W, while the Ryzen Z2 A GPU has a TDP of 15 W. This 30 W difference means the Ryzen Z2 A GPU consumes one-third of the power compared to the 740M. The 740M is classified as an IGP with a slot width of IGP and no power connectors. The Ryzen Z2 A GPU has no slot width or power connector information recorded. The 740M's higher power envelope likely contributes to its higher boost clock and greater FP32 throughput.

Both GPUs support identical API feature sets. They each support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. Neither GPU has tensor cores listed, and both have null tensor core fields. The API support means both can run the same modern games and applications at the feature level, though actual performance will vary based on the architectural differences.

FAQ

Q: Which GPU has a higher average benchmark score?

A: The AMD Radeon 740M has an average benchmark score of 12870 based on its Geekbench OpenCL score of 10172 and Geekbench Vulkan score of 15568. The AMD Ryzen Z2 A GPU has no recorded benchmark scores, resulting in an average score of 0.

Q: How do the FP32 compute performances compare?

A: The 740M delivers 2.867 TFLOPS of FP32 throughput, while the Ryzen Z2 A GPU delivers 1.638 TFLOPS. The 740M is approximately 75% faster in FP32 operations.

Q: What is the memory configuration difference?

A: The 740M uses system-shared memory with no dedicated VRAM, and its bandwidth is system dependent. The Ryzen Z2 A GPU has 16 GB of LPDDR5 memory on a 128-bit bus with 102.4 GB/s bandwidth.

Q: Which GPU has more shading units?

A: The Ryzen Z2 A GPU has 512 shading units, compared to 256 on the 740M. However, the 740M's higher boost clock of 2800 MHz versus 1600 MHz results in greater FP32 output.

Q: What are the power consumption figures?

A: The 740M has a TDP of 45 W, while the Ryzen Z2 A GPU has a TDP of 15 W. The Ryzen Z2 A GPU consumes one-third of the power of the 740M.

Q: Do both GPUs support the same graphics APIs?

A: Yes, both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. Neither GPU has tensor cores listed.

Where Each One Wins

The AMD Radeon 740M wins in raw FP32 compute performance. Its 2.867 TFLOPS doubles the 1.638 TFLOPS of the Ryzen Z2 A GPU. This advantage applies to any workload that uses single-precision floating point math, including most traditional game rendering, scientific computing, and machine learning inference. The 740M also holds a higher percentile ranking at 53 versus 50, and it has actual recorded benchmark scores that place it in the mid-range of the GPU distribution. Its nearest rivals, the AMD FirePro W5100, AMD Radeon Pro 455, and NVIDIA GeForce GTX 590, all score within 0.3% of its average, indicating consistent performance around the 12870 mark. The 740M's 4 nm process node and higher transistor density (152.6M / mm² versus 14.7M / mm²) suggest better energy efficiency per transistor, though its higher TDP of 45 W means it draws more total power.

The AMD Ryzen Z2 A GPU wins in FP16 throughput. Its 3.277 TFLOPS exceeds the 740M's 2.867 TFLOPS, providing a 14% advantage for half-precision workloads. This becomes relevant for AI inference, certain image processing filters, and some game effects that operate in FP16. The Ryzen Z2 A GPU also wins in pixel and texture fill rates. Its 25.60 GPixel/s and 51.20 GTexel/s surpass the 740M's 22.40 GPixel/s and 44.80 GTexel/s. These higher rates come from having twice the ROPs (16 versus 8) and twice the TMUs (32 versus 16). For resolution scaling, post-processing effects, or texture-heavy scenes, the Ryzen Z2 A GPU could maintain higher throughput. Its dedicated 16 GB LPDDR5 memory with 102.4 GB/s bandwidth provides a fixed memory performance profile, unlike the 740M's system-dependent bandwidth. This makes the Ryzen Z2 A GPU more predictable in scenarios where memory latency or bandwidth becomes a bottleneck.

The Ryzen Z2 A GPU also wins in power efficiency. Its 15 W TDP is exactly one-third of the 740M's 45 W. For portable devices, handheld consoles, or fanless designs, this lower power draw is a decisive factor. The Ryzen Z2 A GPU achieves its FP16 and fill-rate advantages while consuming far less power, indicating better performance per watt in those specific metrics. The 740M counters with its higher boost clock of 2800 MHz versus 1600 MHz, which drives its FP32 lead. The 740M also has a newer release date of 2024-01-30 compared to the Ryzen Z2 A GPU's 2024-12-31, though both are marked as Active in production.

The ray tracing cores follow the same ratio as shading units. The Ryzen Z2 A GPU has 8 RT cores, while the 740M has 4. In theory, this gives the Ryzen Z2 A GPU more parallel ray tracing hardware. However, the 740M's higher clock speed may compensate to some degree. Without benchmark data for ray tracing workloads, the net effect remains unmeasured. The 740M's bus interface of PCIe 4.0 x8 indicates it can communicate with the host system at high bandwidth, while the Ryzen Z2 A GPU has no bus interface listed, suggesting an embedded or custom integration. The Ryzen Z2 A GPU's single USB Type-C display output contrasts with the 740M's motherboard-dependent outputs, which could be either more or less flexible depending on the host platform.

The database records show the 740M with a predecessor (Navi II IGP) and successor (Navi III IGP), indicating a clear product lineage. The Ryzen Z2 A GPU has no predecessor or successor, marking it as a standalone design. The 740M's die size of 137 mm² is smaller than the Ryzen Z2 A GPU's 163 mm², yet it contains far more transistors due to the denser process. This makes the 740M a more complex chip in terms of logic density. The Ryzen Z2 A GPU, despite its larger die and older process, integrates dedicated memory, which the 740M lacks. These architectural choices point to different application targets: the 740M for systems with fast shared memory, and the Ryzen Z2 A GPU for self-contained devices with fixed memory specifications.