AMD Radeon R9 M265X vs NVIDIA GeForce GTX 465 Comparison

Head-to-Head Benchmarks

The only direct benchmark comparison available is Geekbench OpenCL, and it produces a clear, if modest, result. The NVIDIA GeForce GTX 465 scores 9294 points, while the AMD Radeon R9 M265X scores 8851 points. This gives the GTX 465 a 5% performance advantage, a margin that is consistent across the single workload tested. While 5% is not a dramatic gap, it is a consistent one, and the GTX 465 holds the win in the sole head-to-head test.

Looking beyond the direct comparison, the GTX 465’s score of 9294 places it in the 46th percentile of all GPUs, while the R9 M265X’s 8851 places it in the 44th percentile. This two-point percentile difference reinforces the slight edge the NVIDIA card holds in overall compute performance. When examining the nearest rivals for each card, the data shows a tightly clustered group. The GTX 465’s closest competitor is the NVIDIA GeForce GTX 850M, which scores 9302, a mere 0.1% higher. The AMD Radeon R7 M380 is also close at 9313, 0.2% higher, while the NVIDIA GeForce GTX 960 trails by 0.2% at 9273. The AMD Radeon Vega 8 is 0.8% behind at 9221. This clustering indicates that the GTX 465 sits in a very competitive performance band where minute differences separate cards.

The R9 M265X’s nearest rivals tell a similar story of close competition. The AMD Radeon Pro WX 5100 scores 8863, just 0.1% higher. The AMD Radeon 550X is 0.8% ahead at 8918. On the other side, the NVIDIA GeForce RTX 3050 A Mobile trails by 1.2% at 8746, and the NVIDIA GeForce GTX 460 v2 is also 1.2% behind at 8743. The R9 M265X’s position in this group shows it is competitive with other mobile and older desktop parts, but it is clearly behind the GTX 465 in raw OpenCL throughput.

The nature of the deltaPct values is worth noting. For the GTX 465, the differences from its rivals range from -0.2% to +0.8%, a spread of just 1.0 percentage point. For the R9 M265X, the spread is larger, from -0.8% to +1.2%, which is a 2.0 percentage point range. This suggests that the R9 M265X has a slightly more varied competitive landscape, but neither card is an outlier in its respective peer group. The single head-to-head result, however, is definitive: the GTX 465 outperforms the R9 M265X by 5% in Geekbench OpenCL, and no other benchmark data is available to challenge that outcome.

The Verdict

From a purely performance standpoint, the data points unambiguously to the NVIDIA GeForce GTX 465 as the faster card. Its 9294 OpenCL score is 5% higher than the R9 M265X’s 8851, and it also holds a higher percentile ranking among all GPUs (46th versus 44th). For any application that relies on OpenCL compute performance, the GTX 465 is the clear choice based on the available evidence. The R9 M265X, while trailing, is not drastically slower; a 5% deficit is noticeable but not disqualifying for many tasks.

However, the decision is not solely about raw compute throughput. The GTX 465 is a desktop card from 2010, built on a 40 nm process, while the R9 M265X is a mobile-oriented part from 2014 built on a 28 nm process. The GTX 465 consumes 200 W and requires a 550 W power supply and dual 6-pin connectors, making it a power-hungry component. The R9 M265X has no listed TDP or power requirements, but its mobile heritage implies a much lower power draw. For a system builder, the GTX 465’s power demands are a significant consideration that the benchmark score does not capture.

The memory configurations also differ substantially. The GTX 465 features 1024 MB of GDDR5 on a 256-bit bus, yielding 102.7 GB/s of bandwidth. The R9 M265X has 2 GB of GDDR5 on a 128-bit bus, providing only 64.00 GB/s. While the R9 M265X has double the capacity, the GTX 465 has over 60% more bandwidth. For memory-bandwidth-sensitive workloads, the GTX 465 has a clear advantage; for workloads that need larger frame buffers, the R9 M265X is better equipped. The verdict, therefore, is that the GTX 465 is the faster compute part, but the R9 M265X offers a more balanced mobile package with more memory and modern features like Vulkan support.

Where Each One Wins

The NVIDIA GeForce GTX 465 wins in raw compute performance. Its Geekbench OpenCL score of 9294 is superior, and it also leads in pixel fill rate (13.38 GPixel/s versus 10.00 GPixel/s) and texture fill rate (26.75 GTexel/s versus 25.00 GTexel/s). The GTX 465’s FP32 throughput of 855.4 GFLOPS also edges out the R9 M265X’s 800.0 GFLOPS. These metrics paint a picture of a card that is faster at processing geometry and pixels, which should translate to better performance in many 3D applications and compute tasks.

The AMD Radeon R9 M265X wins in memory capacity, offering 2 GB versus the GTX 465’s 1024 MB. This is a significant advantage for modern games and applications that require large textures or datasets. The R9 M265X also has a higher shading unit count (640 versus 352), which suggests it may handle certain types of parallel workloads more efficiently, even if its overall compute score is lower. Its 128-bit memory bus, while narrower, is paired with a smaller die (123 mm² versus 529 mm²) and lower transistor count (1,500 million versus 3,100 million), indicating a more power-efficient design.

The architectural differences also favor the R9 M265X in terms of modern feature support. The R9 M265X supports Vulkan 1.2.170 and DirectX 12 (11_1), while the GTX 465 only supports DirectX 12 (11_0) and has no Vulkan support listed. For users running applications that leverage Vulkan, the R9 M265X is the only viable option between the two. The GTX 465 does offer dual DVI and mini-HDMI outputs, while the R9 M265X has no display outputs listed, but this is likely a reflection of its mobile design where outputs are handled by the laptop.

FAQ

Q: Which GPU has a higher Geekbench OpenCL score?

A: The NVIDIA GeForce GTX 465 scores 9294, which is 5% higher than the AMD Radeon R9 M265X’s score of 8851.

Q: How does the GTX 465 compare to its closest rival, the GTX 850M?

A: The GTX 850M scores 9302, which is 0.1% higher than the GTX 465’s 9294, making them effectively equal in performance.

Q: What is the memory bandwidth of each card?

A: The GTX 465 has a bandwidth of 102.7 GB/s, while the R9 M265X has a bandwidth of 64.00 GB/s, giving the GTX 465 a significant advantage.

Q: Does the R9 M265X support Vulkan?

A: Yes, the R9 M265X supports Vulkan 1.2.170, while the GTX 465 has no Vulkan support listed in its specifications.

Q: Which card has more memory?

A: The AMD Radeon R9 M265X has 2 GB of GDDR5 memory, while the NVIDIA GeForce GTX 465 has 1024 MB.

Q: What is the process node for each GPU?

A: The GTX 465 is built on a 40 nm process, while the R9 M265X uses a more advanced 28 nm process.

Architecture Differences

The two GPUs represent fundamentally different design philosophies and generations. The NVIDIA GeForce GTX 465 is built on the Fermi architecture, using the GF100 chip, and is part of the GeForce 400 series. It is fabricated on a 40 nm process at TSMC, with a massive 529 mm² die containing 3,100 million transistors. This results in a transistor density of 5.9 million per mm². The Fermi architecture was known for its high compute throughput but also high power consumption, reflected in the GTX 465’s 200 W TDP and dual 6-pin power connectors.

In contrast, the AMD Radeon R9 M265X uses the GCN 1.0 architecture, based on the Venus chip, and belongs to the Gem System (R9 M200) generation. It is built on a more modern 28 nm process, also at TSMC, with a much smaller 123 mm² die containing 1,500 million transistors. This yields a transistor density of 12.2 million per mm², more than double that of the GTX 465. The GCN architecture was designed for efficiency and scalability, which is why the R9 M265X can deliver comparable performance with fewer resources.

The core configurations differ significantly. The GTX 465 has 352 shading units, 44 texture mapping units (TMUs), and 32 render output units (ROPs). The R9 M265X has 640 shading units, 40 TMUs, and 16 ROPs. The higher shading unit count on the R9 M265X suggests it can handle more parallel threads, while the higher ROP count on the GTX 465 indicates better pixel processing capability. This aligns with the GTX 465’s higher pixel rate of 13.38 GPixel/s versus the R9 M265X’s 10.00 GPixel/s.

Clock speeds also differ. The GTX 465 has a memory clock of 802 MHz (3.2 Gbps effective), while the R9 M265X has a base clock of 575 MHz, a boost clock of 625 MHz, and a memory clock of 1000 MHz (4 Gbps effective). Despite the R9 M265X’s higher memory clock, its narrower 128-bit bus limits its bandwidth to 64.00 GB/s, compared to the GTX 465’s 102.7 GB/s over a 256-bit bus. The GTX 465 also has a higher FP32 throughput at 855.4 GFLOPS versus 800.0 GFLOPS for the R9 M265X.

In terms of connectivity, the GTX 465 uses PCIe 2.0 x16, while the R9 M265X uses PCIe 3.0 x16, offering double the theoretical bandwidth for data transfers. The GTX 465 provides dual DVI and one mini-HDMI 1.3a output, while the R9 M265X has no display outputs listed. The R9 M265X also supports more modern APIs, including Vulkan 1.2.170 and DirectX 12 (11_1), whereas the GTX 465 only supports DirectX 12 (11_0) and OpenGL 4.6. These architectural differences underscore that the R9 M265X is a more modern, efficient design, while the GTX 465 is a larger, more power-hungry desktop part with specific strengths in raw compute and memory bandwidth.