AMD Radeon HD 8750M vs AMD Radeon R7 M365X Comparison

The Verdict

The data separates these two mobile GPUs into a clear recommendation, though the margins are narrow. The AMD Radeon HD 8750M is the stronger choice for raw OpenCL compute work, as it edges out the Radeon R7 M365X by 0.5% in the only head-to-head benchmark recorded, scoring 5970 versus 5939. If your priority is maximum OpenCL performance in legacy applications, the HD 8750M takes it, but the difference is so slight that it will be imperceptible in real-world use.

The Radeon R7 M365X, however, has one distinct advantage: it supports Vulkan, with a recorded score of 4893 in the geekbench_vulkan test. The HD 8750M has no Vulkan benchmark score in the database. This means the R7 M365X is the only one of the two that can be assessed for modern API workloads, making it the better pick if you plan to run applications that leverage Vulkan. For anyone targeting contemporary games or compute tasks built around Vulkan, the choice is clear: the R7 M365X is the only verifiable option.

Both cards occupy a similar performance tier. The HD 8750M sits at the 34th percentile among all GPUs, while the R7 M365X is at the 32nd percentile. These are entry-level mobile parts, and the data reflects that neither is a powerhouse. The HD 8750M is the pick for pure OpenCL strength; the R7 M365X is the pick for API versatility, specifically Vulkan support.

FAQ

Q: Which GPU has the higher OpenCL benchmark score?

A: The AMD Radeon HD 8750M scores 5970 in geekbench_opencl, which is 0.5% higher than the R7 M365X's score of 5939.

Q: Does the Radeon R7 M365X support Vulkan?

A: Yes, the R7 M365X has a recorded geekbench_vulkan score of 4893. The HD 8750M has no Vulkan benchmark entry in the database.

Q: How do these two cards compare to their nearest rivals?

A: The HD 8750M is 0.2% ahead of the NVIDIA Quadro K620M (5957) and 0.3% ahead of the AMD Radeon HD 8730M (5955), while trailing the NVIDIA Quadro K4000 (5982) by 0.2% and the Quadro K4000M (5986) by 0.3%. The R7 M365X is 0.9% ahead of the Intel UHD Graphics P630 (5370) and 1.1% ahead of the AMD Radeon R7 M445 (5358), but trails the AMD Radeon 610M (5444) by 0.5% and the NVIDIA Quadro M4000 (5467) by 0.9%.

Q: What is the memory configuration difference between these two GPUs?

A: The HD 8750M uses 1024 MB of DDR3 memory on a 128-bit bus, delivering 28.80 GB/s of bandwidth. The R7 M365X uses 1024 MB of GDDR5 memory on the same 128-bit bus, delivering 64.00 GB/s of bandwidth.

Q: Are the core specifications identical between the two cards?

A: Yes, both have 384 shading units, 24 texture mapping units, and 8 raster operation pipelines. They also share the same pixel rate of 6.600 GPixel/s, texture rate of 19.80 GTexel/s, and FP32 performance of 633.6 GFLOPS.

Q: Which card has a higher memory clock?

A: The R7 M365X has a memory clock of 1000 MHz with 4 Gbps effective speed, while the HD 8750M runs at 900 MHz with 1800 Mbps effective speed.

Architecture Differences

Both GPUs are built on AMD's GCN 1.0 architecture, which places them in the same design generation. They share the same 28 nm process node from TSMC, with 950 million transistors packed into a die size of 77 mm², resulting in a transistor density of 12.3M per mm². The identical transistor count and die size indicate these are essentially the same silicon, differentiated primarily by their surrounding platform and memory subsystem.

The chip names differ: the HD 8750M uses the Mars chip, while the R7 M365X uses the Litho chip. Despite the different names, the architectural core is the same GCN 1.0 design. Both belong to different generations in the database, with the HD 8750M coming from the "Solar System (HD 8700M)" generation and the R7 M365X from the "Gem System (R7 M300)" generation. This generation gap is visible in the memory type, as the older HD 8750M is paired with DDR3 while the newer R7 M365X uses GDDR5.

The API support is identical on paper: both support DirectX 12 (11_1), OpenGL 4.6, and Vulkan 1.2.170. However, the benchmark data shows a practical difference in Vulkan performance, with only the R7 M365X having a recorded Vulkan score. This suggests that while both cards nominally support the same APIs, the actual performance characteristics in Vulkan workloads may differ, and the database only has verified results for the newer part.

The production status for both is listed as end-of-life, and both connect via PCIe 3.0 x8. The R7 M365X lists its predecessor as "Solar System," which is the same generation as the HD 8750M, indicating a direct lineage. The HD 8750M's predecessor is "London," and its successor is "Gem System," which is the R7 M365X's generation. This confirms the R7 M365X is the newer iteration of the same fundamental design.

Specification Differences

The core compute specifications are identical between the two cards, so the differences lie in memory and clock behavior. The HD 8750M has a base clock of 775 MHz and a boost clock of 825 MHz, while the R7 M365X has no base or boost clock listed in the database. The memory clocks differ significantly: the HD 8750M runs at 900 MHz with 1800 Mbps effective, while the R7 M365X runs at 1000 MHz with 4 Gbps effective. This memory clock difference, combined with the memory type change, produces the bandwidth gap.

Memory size and bus width are the same: 1024 MB on a 128-bit interface. The bandwidth, however, is where the R7 M365X pulls ahead, offering 64.00 GB/s versus the HD 8750M's 28.80 GB/s. That is more than double the bandwidth from the same bus width, entirely due to the switch from DDR3 to GDDR5.

The pixel rate, texture rate, and FP32 performance are all identical at 6.600 GPixel/s, 19.80 GTexel/s, and 633.6 GFLOPS respectively. Both have 384 shading units, 24 TMUs, and 8 ROPs. The release dates differ, with the HD 8750M released on 2013-02-25 and the R7 M365X on 2015-05-04. Neither card has a launch MSRP listed in the database, and both are marked as end-of-life.

Head-to-Head Benchmarks

The only direct comparison available is the geekbench_opencl test, where the HD 8750M wins with a score of 5970 against the R7 M365X's 5939. The delta is 0.5% in favor of the HD 8750M. This is a narrow margin, but it is a consistent one: the HD 8750M's score sits at the 34th percentile among all GPUs, while the R7 M365X's OpenCL score of 5939 places it at the 32nd percentile overall. The HD 8750M also has a higher average benchmark score of 5970, compared to the R7 M365X's average of 5416, though that average is dragged down by the inclusion of the Vulkan result.

Looking at the nearest rivals provides context for these scores. The HD 8750M's 5970 sits between the NVIDIA Quadro K4000 at 5982 (0.2% faster) and the Quadro K620M at 5957 (0.2% slower). It also edges out the AMD Radeon HD 8730M at 5955 by 0.3%. The R7 M365X's OpenCL score of 5939, when compared to its nearest rivals, shows it is 0.9% ahead of the Intel UHD Graphics P630 (5370) and 1.1% ahead of the AMD Radeon R7 M445 (5358), but it trails the AMD Radeon 610M (5444) by 0.5% and the NVIDIA Quadro M4000 (5467) by 0.9%.

The R7 M365X also has a separate geekbench_vulkan score of 4893, which has no counterpart in the HD 8750M's records. This gives the R7 M365X a second data point that the HD 8750M simply cannot match, making it the more thoroughly tested card in the database. In terms of wins, the HD 8750M takes 1 head-to-head win (the OpenCL test), while the R7 M365X has 0 wins in head-to-head comparisons, but its Vulkan result is an additional capability rather than a head-to-head loss.

Where Each One Wins

The AMD Radeon HD 8750M wins in the OpenCL compute arena. Its score of 5970 is 0.5% higher than the R7 M365X, and it holds a higher overall percentile ranking at 34 versus 32. For any workload that relies purely on OpenCL, the HD 8750M is the faster card, albeit by a razor-thin margin. It also has a higher average benchmark score of 5970 compared to the R7 M365X's 5416, though that gap is inflated by the R7 M365X's Vulkan result, which pulls its average down.

The AMD Radeon R7 M365X wins in modern API support. Its Vulkan score of 4893 is a data point the HD 8750M does not have, making the R7 M365X the only one of the two with verified performance in Vulkan applications. For users who play games or run compute workloads that use Vulkan, the R7 M365X is the only choice with recorded data to back it up. Additionally, the R7 M365X has significantly higher memory bandwidth at 64.00 GB/s versus 28.80 GB/s, which could benefit memory-intensive tasks even if the compute core is identical.

The split is clear: the HD 8750M is the pick for legacy OpenCL performance and a slightly higher overall percentile ranking, while the R7 M365X is the pick for Vulkan compatibility and double the memory bandwidth. Both cards are end-of-life, so these are not forward-looking recommendations, but for the workloads each card supports, they occupy distinct niches. If you only care about OpenCL, take the HD 8750M. If you need Vulkan or memory bandwidth, the R7 M365X is the only rational option.