AMD Radeon R5 M435 vs AMD Radeon R7 M465 Comparison

The AMD Radeon R5 M435 and AMD Radeon R7 M465 are two end-of-life mobile GPUs from the same Gem System generation, both built by TSMC on a 28 nm process. Based on the Geekbench OpenCL benchmark data, these two parts are effectively tied in raw compute performance, with the R5 M435 scoring 5859 and the R7 M465 scoring 5841. The data shows a negligible 0.3% difference in favor of the R5 M435, placing both GPUs at the 33rd percentile among all GPUs, meaning they sit in the lower performance tier but are far from the bottom of the stack.

Head-to-Head Benchmarks

The only direct comparison available is the Geekbench OpenCL score, where the AMD Radeon R5 M435 edges out the AMD Radeon R7 M465 by a razor-thin margin. The R5 M435 posts a score of 5859, while the R7 M465 trails slightly at 5841, resulting in a 0.3% delta in favor of the R5 M435. In practical terms, this difference is within the noise of benchmark variance; no user would perceive a meaningful performance gap between these two in real-world OpenCL workloads.

Looking at the broader competitive landscape from the nearest rivals data, both cards sit in a tight cluster of similarly performing GPUs. The R5 M435 is 1.2% behind the Intel UHD Graphics 730 (score 5929) and 1.6% behind both the AMD Radeon HD 8730M (score 5955) and the NVIDIA Quadro K620M (score 5957). Meanwhile, the R7 M465 is 1.5% behind the Intel UHD Graphics 730, 1.9% behind the AMD Radeon HD 8730M, and only 1.9% ahead of the NVIDIA GeForce GTX 550 Ti (score 5731). These deltas reinforce the picture of two nearly interchangeable parts competing in the same performance band.

What is striking is that the R7 M465, despite having more shading units and a newer architecture, does not translate that hardware advantage into a benchmark win. The R5 M435 wins the single head-to-head benchmark, but the margin is so small that the result should be interpreted as a statistical tie rather than a genuine victory. When a GPU wins by 0.3%, it means both cards deliver essentially identical OpenCL compute performance.

Where Each One Wins

Based strictly on the win count, the AMD Radeon R5 M435 wins 1 benchmark while the AMD Radeon R7 M465 wins 0. However, this does not mean the R5 M435 is the superior card for all workloads. The data indicates that in OpenCL compute, the two are functionally equivalent, so the "win" for the R5 M435 is more about benchmark variance than architectural superiority.

For the R5 M435, its single benchmark win suggests it has a slight edge in compute-heavy tasks that leverage OpenCL, such as certain GPU-accelerated applications or productivity workloads. The R7 M465, while not winning the benchmark, offers a different set of hardware characteristics that may benefit specific use cases. With 384 shading units compared to 320 on the R5 M435, the R7 M465 has 20% more compute cores, which could theoretically help in workloads that scale well with core count, even if the Geekbench OpenCL test does not show it.

The R7 M465 also supports DirectX 12 (12_0), while the R5 M435 only supports DirectX 12 (11_1). This means the R7 M465 is better positioned for newer games or applications that require full DirectX 12 feature support. If a user's workload depends on DirectX 12.0 features, the R7 M465 is the safer choice despite its slightly lower OpenCL score. In contrast, the R5 M435's higher clock speeds — 780 MHz base and 1030 MHz boost versus 730 MHz and 1024 MHz on the R7 M465 — give it a slight frequency advantage that may help in latency-sensitive tasks.

Architecture Differences

The most significant architectural difference is the GPU generation. The AMD Radeon R5 M435 uses the GCN 1.0 architecture on the Jet chip, while the AMD Radeon R7 M465 uses the newer GCN 3.0 architecture on the Topaz chip. This is a two-generation leap in architecture, which typically brings improvements in instruction efficiency, power management, and feature support.

The transistor count tells a dramatic story: the R7 M465 packs 1,550 million transistors on a 125 mm² die, while the R5 M435 has only 690 million transistors on a 56 mm² die. The R7 M465's die is more than twice the size and contains more than double the transistors. Interestingly, the transistor density is nearly identical — 12.3M / mm² for the R5 M435 and 12.4M / mm² for the R7 M465 — which is expected given both use the same 28 nm TSMC process.

The shading unit count differs significantly: the R7 M465 has 384 shading units compared to 320 on the R5 M435, a 20% increase. Texture mapping units also scale up from 20 on the R5 M435 to 24 on the R7 M465, a 20% increase. However, both cards maintain 8 ROPs, which means pixel fill rates are nearly identical — 8.240 GPixel/s for the R5 M435 and 8.192 GPixel/s for the R7 M465. The R7 M465 does have a higher texture rate at 24.58 GTexel/s versus 20.60 GTexel/s, reflecting its additional TMUs.

The R7 M465 also supports FP16 compute at a 1:1 ratio with FP32 (786.4 GFLOPS), while the R5 M435 has no listed FP16 capability. This makes the R7 M465 more capable for workloads that can exploit half-precision arithmetic, such as certain machine learning inference or image processing tasks. Both GPUs support Vulkan 1.2.170 and OpenGL 4.6, but the DirectX support differs as noted: the R5 M435 supports DirectX 12 (11_1) while the R7 M465 supports DirectX 12 (12_0).

Specification Differences

The two GPUs differ in several key specification fields. The chip design is different — Jet for the R5 M435 versus Topaz for the R7 M465 — and the architectures differ (GCN 1.0 vs GCN 3.0). Transistor count is 690 million versus 1,550 million, and die size is 56 mm² versus 125 mm². The shading units are 320 versus 384, and TMUs are 20 versus 24, while ROPs remain 8 for both.

Clock speeds differ slightly: the R5 M435 has a base clock of 780 MHz and a boost of 1030 MHz, while the R7 M465 runs at 730 MHz base and 1024 MHz boost. Both have the same memory configuration: 2 GB GDDR5 on a 64-bit bus with 36.00 GB/s bandwidth and 1125 MHz memory clock (4.5 Gbps effective). Compute rates differ, with the R5 M435 delivering 659.2 GFLOPS FP32 and the R7 M465 delivering 786.4 GFLOPS FP32, and the R7 M465 adds 786.4 GFLOPS FP16 while the R5 M435 has none.

Pixel rate is essentially identical (8.240 vs 8.192 GPixel/s), but texture rate differs (20.60 vs 24.58 GTexel/s). The R5 M435 is listed with an IGP slot width, while the R7 M465 has no slot width specified. Both use the PCIe 3.0 x8 bus interface and have the same release date of 2016-05-14. The R5 M435 lists display outputs as "Portable Device Dependent," while the R7 M465 has no display output information. Both have identical generation branding ("Gem System") and share the same predecessor (Solar System) and successor (Polaris Mobile).

FAQ

Q: Which GPU has the higher OpenCL benchmark score?

A: The AMD Radeon R5 M435 scores 5859 in Geekbench OpenCL, which is 0.3% higher than the AMD Radeon R7 M465's score of 5841.

Q: Do these GPUs have the same memory configuration?

A: Yes, both have 2 GB of GDDR5 memory with a 64-bit bus, 36.00 GB/s bandwidth, and a 1125 MHz memory clock running at 4.5 Gbps effective.

Q: What is the main architectural difference between the two?

A: The R5 M435 uses GCN 1.0 architecture on a 56 mm² die with 690 million transistors, while the R7 M465 uses GCN 3.0 architecture on a 125 mm² die with 1,550 million transistors.

Q: Does the R7 M465 support any features the R5 M435 does not?

A: Yes, the R7 M465 supports DirectX 12 (12_0) and FP16 compute at 786.4 GFLOPS, while the R5 M435 only supports DirectX 12 (11_1) and has no FP16 capability.

Q: How do these GPUs compare to the NVIDIA GeForce GTX 550 Ti?

A: The R7 M465 is 1.9% ahead of the GTX 550 Ti in OpenCL score, while the R5 M435's comparison to the GTX 550 Ti is not listed in the nearest rivals data.

Q: Are these GPUs still in production?

A: No, both are listed as end-of-life production status, with a release date of May 14, 2016.

The Verdict

The data presents an unusual case where the lower-tier product (R5 M435) technically wins the only benchmark, but the margin is too small to matter. For users prioritizing raw OpenCL compute performance, the R5 M435 holds a 0.3% edge, which is effectively a dead heat. However, the R7 M465 offers objectively better hardware specifications that may pay off in specific scenarios.

Pick the AMD Radeon R5 M435 if your priority is the highest benchmark score, the slightly higher clock speeds (780 MHz base, 1030 MHz boost), or the compact IGP form factor. It also matches the R7 M465 in memory, bandwidth, and pixel rate, making it a more efficient package for the performance it delivers.

Pick the AMD Radeon R7 M465 if you anticipate needing DirectX 12 (12_0) feature support or FP16 compute capability. The R7 M465's 384 shading units, 24 TMUs, and 786.4 GFLOPS FP32 throughput give it more raw compute headroom that could emerge in workloads not captured by the Geekbench OpenCL test. The 1.9% lead over the NVIDIA GeForce GTX 550 Ti also indicates it slots slightly higher in the competitive hierarchy.

For most users, the choice between these two will come down to availability and platform compatibility rather than performance, since the benchmark results show them as functionally interchangeable. If forced to make a recommendation based solely on the data, the R7 M465's newer architecture and superior feature set make it the more future-proof option, despite losing the single benchmark by a hair. The R5 M435's benchmark win is real but statistically insignificant, and it cannot overcome the R7 M465's architectural advantages in shading units, FP16 support, and DirectX 12 feature level.