AMD Radeon R5 M430 vs AMD Radeon R5 M435 Comparison

Head-to-Head Benchmarks

The only directly comparable benchmark in the database is Geekbench OpenCL, and the AMD Radeon R5 M435 takes a decisive victory. The M435 scores 5,859 points, while the AMD Radeon R5 M430 manages 5,152 points. That is a 13.7% difference in favor of the M435, a substantial gap for two GPUs that share the same chip, architecture, and process node.

The M435's nearest rivals in the database illustrate its positioning. It sits 0.3% ahead of the AMD Radeon R7 M465 (5,841 points), essentially a statistical tie. Against the Intel UHD Graphics 730, the M435 trails by 1.2% (5,929 points), and it is 1.6% behind both the AMD Radeon HD 8730M (5,955 points) and the NVIDIA Quadro K620M (5,957 points). These deltas are small enough that real-world variation could flip the order, but the M435 holds its own in this cluster.

The M430, by contrast, lands in a lower performance tier. Its average benchmark score across all recorded tests is 5,018 points, which reflects both its OpenCL result and its Vulkan score of 4,884 points. The M430's nearest rivals include the AMD FirePro W4170M (5,034 points), where the M430 trails by 0.3%. It leads the AMD Radeon R7 Graphics by 0.4% (4,998 points) and the NVIDIA Quadro 4000 by 0.8% (4,979 points). It also trails the AMD Radeon R7 M340 by 0.9% (5,063 points).

The gap between the two GPUs in this head-to-head is not just about raw scores. The M435's 5,859 points place it in the 33rd percentile of all GPUs in the database, while the M430's average of 5,018 points sits in the 30th percentile. That three-percentile difference may sound modest, but it separates the two parts by more than 800 points in OpenCL, which is a meaningful margin at this performance level.

Notably, the M430 has a Vulkan result recorded, while the M435 does not. The M430's Vulkan score of 4,884 is lower than its OpenCL score of 5,152, suggesting that its performance under the Vulkan API is slightly weaker. Without a corresponding Vulkan score for the M435, the database only allows a direct comparison through OpenCL, where the M435 clearly wins.

The Verdict

The data points to a straightforward conclusion: the AMD Radeon R5 M435 is the faster GPU in this pairing. Its OpenCL score of 5,859 beats the M430's 5,152 by 13.7%, and it also posts a higher percentile ranking (33rd versus 30th). If the choice is strictly about compute performance, the M435 is the pick.

However, the M430 is not without its own advantages. It offers 4 GB of DDR3 memory compared to the M435's 2 GB of GDDR5. That larger memory capacity could matter for workloads that need more framebuffer space, even if the memory bandwidth is far lower. The M430's memory bandwidth is 16.00 GB/s, while the M435 delivers 36.00 GB/s, more than double. For texture-heavy or bandwidth-sensitive tasks, the M435's GDDR5 advantage is significant.

Users who prioritize raw compute and memory bandwidth should choose the M435. Users who need more memory capacity for larger data sets or higher-resolution textures might prefer the M430, but they should be prepared for lower overall throughput. The M430's Vulkan support is an additional data point, but its Vulkan score of 4,884 is below its OpenCL result, so it does not suggest an API-specific strength.

Given that both GPUs are end-of-life products built on the same GCN 1.0 architecture, the decision comes down to performance versus capacity. The M435 wins the performance battle decisively, and its GDDR5 memory gives it a clear bandwidth edge. The M430's only real argument is its 4 GB capacity, which is a narrow use case.

Architecture Differences

Both GPUs share the same fundamental design. They use the Jet chip, built on GCN 1.0 architecture, and they are manufactured by TSMC on a 28 nm process. The transistor count is identical at 690 million, and the die size is the same at 56 mm², resulting in a transistor density of 12.3 million transistors per square millimeter. Both belong to the Gem System generation, specifically the R5 M400 series, and both are classified as integrated graphics (IGP) with a PCIe 3.0 x8 bus interface.

The compute resources are also identical on paper. Each GPU has 320 shading units, 20 texture mapping units, and 8 raster output units. Neither supports ray tracing or tensor cores, and neither has recorded FP16 performance. The API support matches as well: DirectX 12 (11_1), OpenGL 4.6, and Vulkan 1.2.170.

The differences emerge in clock speeds and memory configuration. The M435 runs at a base clock of 780 MHz, the same as the M430, but its boost clock is 1030 MHz versus 855 MHz for the M430. That 175 MHz boost advantage translates directly into higher throughput. The M435's pixel rate is 8.240 GPixel/s and its texture rate is 20.60 GTexel/s, while the M430 manages 6.840 GPixel/s and 17.10 GTexel/s respectively. The FP32 compute figures follow the same pattern: 659.2 GFLOPS for the M435 versus 547.2 GFLOPS for the M430.

Memory is where the two diverge most sharply. The M435 uses 2 GB of GDDR5 on a 64-bit bus, with a memory clock of 1125 MHz (4.5 Gbps effective) and bandwidth of 36.00 GB/s. The M430 uses 4 GB of DDR3 on the same 64-bit bus, with a memory clock of 1000 MHz (2 Gbps effective) and bandwidth of just 16.00 GB/s. The M435's GDDR5 memory provides more than double the bandwidth, which is a critical factor for GPU performance.

Both GPUs have no recorded TDP, no power connectors, and no suggested PSU, consistent with their IGP classification. Display outputs are portable-device dependent, meaning they rely on the host laptop's implementation. The production status for both is end-of-life, and the M435 has a release date of May 14, 2016, while the M430's release date is not recorded. Both share the same predecessor (Solar System) and successor (Polaris Mobile).

FAQ

Q: Which GPU has a higher OpenCL benchmark score?

A: The AMD Radeon R5 M435 scores 5,859 points in Geekbench OpenCL, while the AMD Radeon R5 M430 scores 5,152 points. The M435 wins by 13.7%.

Q: How much memory does each GPU have, and what type?

A: The M435 has 2 GB of GDDR5 memory, while the M430 has 4 GB of DDR3 memory. Both use a 64-bit memory bus.

Q: What is the memory bandwidth difference between the two?

A: The M435 delivers 36.00 GB/s of bandwidth, while the M430 delivers 16.00 GB/s. The M435 has more than double the bandwidth of the M430.

Q: Do both GPUs support the same APIs?

A: Yes, both support DirectX 12 (11_1), OpenGL 4.6, and Vulkan 1.2.170. The M430 has a recorded Vulkan benchmark score of 4,884, while the M435 has no Vulkan score in the database.

Q: What is the boost clock difference between the two GPUs?

A: The M435 boosts to 1030 MHz, while the M430 boosts to 855 MHz. The base clock is the same at 780 MHz for both.

Q: Are these GPUs still in production?

A: No, both are marked as end-of-life in the database.

Where Each One Wins

The AMD Radeon R5 M435 wins in every directly comparable performance metric. Its OpenCL score is 13.7% higher, its boost clock is 175 MHz faster, its pixel rate is 8.240 GPixel/s versus 6.840 GPixel/s, its texture rate is 20.60 GTexel/s versus 17.10 GTexel/s, and its FP32 output is 659.2 GFLOPS versus 547.2 GFLOPS. The memory bandwidth advantage is even more pronounced: 36.00 GB/s versus 16.00 GB/s. For any workload that depends on compute throughput or memory bandwidth, the M435 is the clear winner.

The AMD Radeon R5 M430 wins in one specific area: memory capacity. Its 4 GB of DDR3 is double the M435's 2 GB of GDDR5. Applications that require more framebuffer space, such as running games at higher resolutions with larger texture packs or handling large compute buffers, could benefit from the extra capacity. However, the M430's lower bandwidth means that any advantage from capacity may be offset by slower data movement.

The M430 also has a recorded Vulkan benchmark score of 4,884, which the M435 lacks. This does not mean the M435 cannot run Vulkan, as both support the same API version, but it does mean the database has no direct comparison for that API. Users who specifically target Vulkan workloads would have more data for the M430, but that is a data availability distinction, not a performance one.

In practical terms, the M435 is the choice for anyone who values speed. Its higher clocks, faster memory, and better benchmark scores make it the superior GPU for gaming, rendering, or any general-purpose compute task. The M430 is the choice only for the narrow scenario where 4 GB of memory is a hard requirement and the user is willing to accept significantly lower bandwidth and overall performance.

Given that both GPUs are end-of-life and typically found in laptops as integrated solutions, the M435's advantages are likely to matter more in real-world use. The 13.7% OpenCL lead is substantial at this performance tier, and the memory bandwidth difference is a fundamental architectural advantage. The M430's extra memory capacity is a consolation prize, but it does not overcome the M435's superior engineering.