AMD Radeon R7 M365X vs NVIDIA GeForce GTX 770M Comparison

The Verdict

The NVIDIA GeForce GTX 770M is the stronger mobile GPU in nearly every measurable way. Its average benchmark score of 6000 places it at the 35th percentile of all GPUs in the database, while the AMD Radeon R7 M365X averages 5416, sitting at the 32nd percentile. In the only head-to-head benchmark recorded, OpenCL, the GTX 770M scores 8552 against the R7 M365X’s 5939, a 44% advantage. If you need raw compute throughput, the GTX 770M is the clear pick.

The AMD Radeon R7 M365X is not without merit, but its strengths are narrower. It supports DirectX 12 (11_1) versus the GTX 770M’s DirectX 12 (11_0), and it has a slightly higher transistor density at 12.3M per mm² compared to 11.5M per mm². It also uses a PCIe 3.0 x8 interface, which is more standard than the GTX 770M’s MXM-B (3.0) bus. For a laptop that needs a lower-profile, more power-efficient solution, the R7 M365X could be acceptable.

However, the data is unambiguous: the GTX 770M wins the one benchmark both share, and its hardware specifications are decisively higher across shading units, texture units, ROPs, memory bandwidth, and FP32 throughput. Users who prioritize performance should choose the GTX 770M. Users who need a smaller, newer, or more standard interface implementation might consider the R7 M365X, but they will sacrifice a significant amount of compute capability.

Where Each One Wins

The GTX 770M wins in compute-heavy workloads. Its OpenCL score of 8552 is substantially higher than the R7 M365X’s 5939, indicating a large lead in general-purpose GPU compute, which matters for applications like video encoding, physics simulation, and some machine learning tasks. The GTX 770M also has higher pixel rate (15.94 GPixel/s versus 6.600 GPixel/s) and texture rate (63.76 GTexel/s versus 19.80 GTexel/s), which directly benefits gaming and 3D rendering.

The R7 M365X wins in API compatibility and interface flexibility. It supports Vulkan 1.2.170, slightly newer than the GTX 770M’s Vulkan 1.2.175 (note: the GTX 770M actually has a higher Vulkan version, but the R7 M365X has a higher DirectX feature level). The R7 M365X’s DirectX 12 (11_1) feature level is one step above the GTX 770M’s 11_0, which means better support for certain DirectX 12 features in newer games. Its PCIe 3.0 x8 bus is also more universally compatible with standard laptop motherboards compared to the GTX 770M’s MXM-B (3.0) slot.

The R7 M365X also has a higher transistor density (12.3M vs 11.5M per mm²), which indicates a more modern design per square millimeter, despite having a much smaller die (77 mm² versus 221 mm²) and fewer total transistors (950 million versus 2,540 million). This density advantage does not translate into performance wins, but it does suggest the R7 M365X is a more efficient use of silicon area.

Architecture Differences

The GTX 770M is built on NVIDIA’s Kepler architecture, using the GK106 chip, which is fabricated on a 28 nm process at TSMC. The die is 221 mm² and contains 2,540 million transistors. Kepler was designed for high throughput per clock, and the GTX 770M implements 960 shading units, 80 TMUs, and 24 ROPs. Its memory subsystem uses 3 GB of GDDR5 on a 192-bit bus, yielding 96.19 GB/s of bandwidth. The memory clock is 1002 MHz, with an effective data rate of 4 Gbps.

The R7 M365X uses AMD’s GCN 1.0 architecture, built on the Litho chip, also on a 28 nm TSMC process. The die is much smaller at 77 mm², with 950 million transistors. GCN 1.0 was AMD’s first iteration of the Graphics Core Next architecture, which was designed for compute-heavy workloads, but the R7 M365X’s implementation is heavily cut down: only 384 shading units, 24 TMUs, and 8 ROPs. Memory is 1024 MB of GDDR5 on a 128-bit bus, providing 64.00 GB/s, with a memory clock of 1000 MHz and 4 Gbps effective.

The GTX 770M has a base clock of 706 MHz and a boost clock of 797 MHz, while the R7 M365X has no recorded base or boost clocks in the database. The GTX 770M’s FP32 throughput is 1.530 TFLOPS, compared to 633.6 GFLOPS for the R7 M365X, a difference of roughly 2.4x in raw floating-point capability. The GTX 770M also has a much higher pixel rate and texture rate, as noted earlier.

The GTX 770M’s TDP is 75 W, while the R7 M365X has no TDP recorded, but its smaller die and lower clock rates suggest lower power consumption. The GTX 770M uses an MXM module form factor with no power connectors, while the R7 M365X has no slot width or power connector data at all. Both are end-of-life products.

FAQ

Q: Which GPU has the higher average benchmark score?

A: The NVIDIA GeForce GTX 770M has an average benchmark score of 6000, which is 584 points higher than the AMD Radeon R7 M365X’s average of 5416.

Q: How much faster is the GTX 770M in OpenCL?

A: The GTX 770M scores 8552 in Geekbench OpenCL, while the R7 M365X scores 5939, a 44% difference in favor of NVIDIA.

Q: Does the R7 M365X support newer graphics APIs than the GTX 770M?

A: Yes, the R7 M365X supports DirectX 12 (11_1), which is one feature level higher than the GTX 770M’s DirectX 12 (11_0). Both support OpenGL 4.6, and the GTX 770M has a slightly higher Vulkan version (1.2.175 vs 1.2.170).

Q: What is the memory configuration difference?

A: The GTX 770M has 3 GB of GDDR5 on a 192-bit bus with 96.19 GB/s bandwidth. The R7 M365X has 1024 MB of GDDR5 on a 128-bit bus with 64.00 GB/s bandwidth.

Q: Which GPU has more shading units?

A: The GTX 770M has 960 shading units, while the R7 M365X has 384. The GTX 770M also has 80 TMUs and 24 ROPs, versus 24 TMUs and 8 ROPs for the R7 M365X.

Q: Are both GPUs end-of-life?

A: Yes, both are marked as end-of-life in the database. The GTX 770M was released on May 29, 2013, and the R7 M365X on May 4, 2015.

Head-to-Head Benchmarks

The only shared benchmark in the database is Geekbench OpenCL, and the GTX 770M wins decisively. The NVIDIA GPU scores 8552, while the AMD GPU scores 5939. The delta is 44%, meaning the GTX 770M is nearly one and a half times faster in raw compute throughput. This is a massive gap that will be felt in any OpenCL-accelerated application, from video transcoding to scientific computing.

There is no Vulkan benchmark for the GTX 770M, and no Metal benchmark for either GPU, so the OpenCL result is the only direct comparison available. The GTX 770M’s FP32 throughput of 1.530 TFLOPS versus 633.6 GFLOPS for the R7 M365X corroborates the OpenCL result: the NVIDIA part simply has more arithmetic units and higher clocks. The GTX 770M’s texture rate of 63.76 GTexel/s is over three times the R7 M365X’s 19.80 GTexel/s, and its pixel rate of 15.94 GPixel/s is roughly 2.4 times higher.

The R7 M365X does not win a single head-to-head benchmark in the database. Its advantages are limited to API feature levels (DirectX 11_1 vs 11_0) and interface compatibility (PCIe 3.0 x8 vs MXM-B). In every measured performance metric, the GTX 770M leads.

Specification Differences

The GTX 770M and R7 M365X differ across nearly every specification field. The GTX 770M uses the GK106 chip with Kepler architecture, while the R7 M365X uses the Litho chip with GCN 1.0. Both are on 28 nm at TSMC, but the GTX 770M’s die is 221 mm² versus 77 mm² for the R7 M365X, and transistor counts are 2,540 million versus 950 million. Transistor density is close: 11.5M per mm² for NVIDIA, 12.3M per mm² for AMD.

Clock speeds: the GTX 770M has a 706 MHz base and 797 MHz boost. The R7 M365X has no recorded clocks, only a memory clock of 1000 MHz versus the GTX 770M’s 1002 MHz. Memory effective rate is identical at 4 Gbps.

Memory: the GTX 770M has 3 GB GDDR5 on a 192-bit bus, with 96.19 GB/s bandwidth. The R7 M365X has 1024 MB GDDR5 on a 128-bit bus, with 64.00 GB/s bandwidth.

Compute resources: the GTX 770M has 960 shading units, 80 TMUs, and 24 ROPs. The R7 M365X has 384 shading units, 24 TMUs, and 8 ROPs. Pixel rate is 15.94 GPixel/s versus 6.600 GPixel/s, and texture rate is 63.76 GTexel/s versus 19.80 GTexel/s. FP32 is 1.530 TFLOPS versus 633.6 GFLOPS.

Power and interface: the GTX 770M has a TDP of 75 W and uses an MXM-B (3.0) bus interface with no power connectors. The R7 M365X has no TDP, slot width, or power connector data, but uses a PCIe 3.0 x8 interface. Display outputs are listed as portable device dependent for the GTX 770M and are not recorded for the R7 M365X.

APIs: the GTX 770M supports DirectX 12 (11_0), OpenGL 4.6, and Vulkan 1.2.175. The R7 M365X supports DirectX 12 (11_1), OpenGL 4.6, and Vulkan 1.2.170.

Release dates: the GTX 770M launched May 29, 2013, and the R7 M365X launched May 4, 2015. Both are end-of-life, with the GTX 770M’s predecessor being the GeForce 600M and successor the GeForce 800M, while the R7 M365X’s predecessor is Solar System and successor is Polaris Mobile.