AMD Radeon R7 M340 vs NVIDIA GeForce GTX 760M Comparison

# Head-to-Head Benchmarks

The two mobile GPUs split their benchmark matchups exactly one win apiece, but the margins tell very different stories. In Geekbench OpenCL, the NVIDIA GeForce GTX 760M posts a score of 5604 against the AMD Radeon R7 M340's 4932, giving NVIDIA a decisive 13.6% advantage. That is a substantial gap for this class of hardware, placing the GTX 760M clearly ahead in compute-oriented workloads that scale with raw shading power and memory bandwidth.

The AMD card answers back in Geekbench Vulkan, scoring 5193 versus NVIDIA's 4868, a 6.3% lead for the R7 M340. This is notable because the Vulkan test exercises driver-level API efficiency and modern graphics pipeline behavior rather than sheer compute throughput. The NVIDIA card's OpenCL victory is nearly twice as large in percentage terms as AMD's Vulkan win, suggesting that the GTX 760M has a firmer grip on peak performance while the R7 M340 holds its own in API-specific scenarios.

Looking at average benchmark scores across all recorded tests, the GTX 760M sits at 5236, which is 3.4% higher than the R7 M340's 5063 average. Both cards land in the bottom third of the GPU performance distribution — the NVIDIA card at the 31st percentile and the AMD card at the 30th percentile — so neither is a performance champion by any stretch. However, the GTX 760M's nearest rivals include the NVIDIA GeForce 940M (5284, 0.9% ahead) and the NVIDIA GeForce GTX 980M (5308, 1.3% ahead), while the R7 M340's closest competitors are the AMD Radeon R7 240 (5063, exactly tied) and the AMD FirePro W4170M (5034, 0.6% behind). The data places the GTX 760M in a slightly higher performance tier, even though the percentile rankings are nearly identical.

# Architecture Differences

The architectural gap between these two chips is substantial, reflecting their different design philosophies and release timelines. The NVIDIA GeForce GTX 760M uses the GK106S chip built on the Kepler architecture, fabricated by TSMC on a 28 nm process. The die measures 221 mm² and packs 2,540 million transistors, yielding a density of 11.5M transistors per square millimeter. The AMD Radeon R7 M340 uses the Meso chip based on GCN 3.0, also on TSMC's 28 nm node, but with a smaller 125 mm² die and 1,550 million transistors, giving it a slightly higher density of 12.4M per mm².

The compute resources diverge sharply. NVIDIA's Kepler chip fields 768 shading units, 64 texture mapping units, and 16 ROPs, while AMD's GCN 3.0 silicon offers only 320 shading units, 20 TMUs, and 8 ROPs. That is a 2.4x advantage in shader count for NVIDIA and a 3.2x advantage in TMUs. The pixel rate reflects this: the GTX 760M delivers 11.50 GPixel/s versus 8.168 GPixel/s for the R7 M340. Texture fill rate is similarly lopsided at 46.02 GTexel/s versus 20.42 GTexel/s. In raw FP32 compute, the NVIDIA card outputs 1,104.4 GFLOPS compared to 653.4 GFLOPS for AMD — a 69% difference.

Clock speeds tell a different story. The R7 M340 runs at a 943 MHz base and 1021 MHz boost, while the GTX 760M operates at a lower 628 MHz base and 719 MHz boost. AMD's higher clocks partially compensate for its smaller shader array, but not enough to close the compute gap. Memory architecture is another major split: the GTX 760M uses 2 GB of GDDR5 on a 128-bit bus with 64.13 GB/s of bandwidth, while the R7 M340 uses 2 GB of DDR3 on a 64-bit bus with just 16.00 GB/s. That 4x bandwidth advantage for NVIDIA is enormous and likely explains much of its OpenCL lead. The GTX 760M also supports PCIe 3.0 x16, whereas the R7 M340 is limited to PCIe 3.0 x8.

API support differs subtly. The NVIDIA card lists DirectX 12 (11_0) support, while the AMD card supports DirectX 12 (12_0) — a more complete implementation of the DirectX 12 feature set. Both offer OpenGL 4.6, but NVIDIA's Vulkan version is 1.2.175 versus AMD's 1.2.170. The NVIDIA card's TDP is rated at 55 W with an MXM module slot width and no power connectors, while the AMD card's TDP is not specified in the data.

# Where Each One Wins

The GTX 760M's strengths are clear from the numbers. Its 64.13 GB/s memory bandwidth and 1,104.4 GFLOPS of FP32 compute make it the better choice for OpenCL-heavy workloads — think GPGPU tasks, media encoding, or any application that leans on general-purpose compute. The 13.6% OpenCL lead over the R7 M340 is the largest single benchmark margin in this comparison, and it aligns with the NVIDIA card's far larger shader count and wider memory bus. For users running compute-accelerated productivity tools or older games that rely on traditional rasterization performance, the GTX 760M's 46.02 GTexel/s texture fill rate and 11.50 GPixel/s pixel rate give it a tangible edge.

The R7 M340 wins in Vulkan, scoring 6.3% higher than the GTX 760M. This suggests AMD's GCN 3.0 architecture handles Vulkan's explicit, low-overhead API model more efficiently, likely due to better driver optimization for that specific interface. The AMD card also offers DirectX 12 (12_0) support, which is a more complete implementation than NVIDIA's DirectX 12 (11_0) — relevant if you plan to run titles that use advanced DX12 features. The R7 M340's higher clock speeds (943 MHz base versus 628 MHz) may also help in latency-sensitive scenarios where raw frequency matters more than shader throughput.

Neither card is suited for demanding modern gaming at high settings. Both sit at the 30th percentile or just above it, meaning they outperform only about a third of all GPUs in the database. But for lightweight esports titles, older games, or basic multimedia tasks, the choice depends on your API and workload priorities. The GTX 760M's compute and bandwidth advantage makes it the more versatile performer overall, while the R7 M340's Vulkan showing hints at better behavior in specific modern API scenarios.

# The Verdict

The data points to the NVIDIA GeForce GTX 760M as the stronger all-around GPU, but only by a modest margin. Its average benchmark score of 5236 is 3.4% higher than the R7 M340's 5063, and its OpenCL win at 13.6% is far more decisive than the 6.3% Vulkan loss. The GTX 760M also has the architectural firepower — 768 shading units, 64 TMUs, and 64.13 GB/s of bandwidth — that makes it better suited for compute tasks and traditional game rendering. If you are choosing between two laptops or upgrading an MXM module, the GTX 760M is the safer pick for general performance.

That said, the R7 M340 is not without merit. Its Vulkan victory and more complete DirectX 12 (12_0) support mean it can outperform the GTX 760M in applications that leverage those modern APIs. If your software stack is Vulkan-centric or relies on DX12 features the older NVIDIA card lacks, the R7 M340 could deliver a better experience despite its lower average score. The AMD card's lower transistor count (1,550 million versus 2,540 million) and smaller die (125 mm² versus 221 mm²) also suggest it may run cooler and consume less power, though TDP data for the R7 M340 is not provided in the fact pack.

For most users, the GTX 760M is the recommendation. Its compute lead is larger, its bandwidth advantage is massive, and its average score is higher. The R7 M340 is a niche pick for those who specifically need Vulkan performance or more complete DX12 support. Neither card is competitive with modern GPUs — both are end-of-life products in the bottom third of performance rankings — but within this pairing, the NVIDIA card has the better overall profile.

# FAQ

Q: Which GPU has the higher average benchmark score?

A: The NVIDIA GeForce GTX 760M averages 5236 across all benchmark tests, which is 3.4% higher than the AMD Radeon R7 M340's 5063 average.

Q: How large is the GTX 760M's OpenCL advantage?

A: The GTX 760M scores 5604 in Geekbench OpenCL versus 4932 for the R7 M340, giving NVIDIA a 13.6% lead in that test.

Q: Does the AMD card win any benchmark?

A: Yes, the R7 M340 wins Geekbench Vulkan with a score of 5193 against the GTX 760M's 4868, a 6.3% advantage for AMD.

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

A: The GTX 760M has 64.13 GB/s of bandwidth from its GDDR5 memory on a 128-bit bus, while the R7 M340 offers 16.00 GB/s from DDR3 on a 64-bit bus — a 4x gap in NVIDIA's favor.

Q: Which GPU has more shading units?

A: The GTX 760M has 768 shading units, compared to 320 for the R7 M340, giving NVIDIA a 2.4x advantage in shader count.

Q: Do both GPUs support DirectX 12?

A: Both support DirectX 12, but the R7 M340 implements the 12_0 feature level while the GTX 760M is limited to 11_0, making AMD's DX12 support more complete.

# Specification Differences

| Specification | NVIDIA GeForce GTX 760M | AMD Radeon R7 M340 |

|---|---|---|

| Chip | GK106S | Meso |

| Architecture | Kepler | GCN 3.0 |

| Process Node | 28 nm | 28 nm |

| Transistors | 2,540 million | 1,550 million |

| Die Size | 221 mm² | 125 mm² |

| Transistor Density | 11.5M / mm² | 12.4M / mm² |

| Base Clock | 628 MHz | 943 MHz |

| Boost Clock | 719 MHz | 1021 MHz |

| Memory Clock | 1002 MHz / 4 Gbps effective | 1000 MHz / 2 Gbps effective |

| Memory Size | 2 GB | 2 GB |

| Memory Type | GDDR5 | DDR3 |

| Memory Bus Width | 128 bit | 64 bit |

| Memory Bandwidth | 64.13 GB/s | 16.00 GB/s |

| Shading Units | 768 | 320 |

| TMUs | 64 | 20 |

| ROPs | 16 | 8 |

| Pixel Rate | 11.50 GPixel/s | 8.168 GPixel/s |

| Texture Rate | 46.02 GTexel/s | 20.42 GTexel/s |

| FP32 Performance | 1,104.4 GFLOPS | 653.4 GFLOPS |

| FP16 Performance | Not specified | 653.4 GFLOPS (1:1) |

| TDP | 55 W | Not specified |

| Bus Interface | PCIe 3.0 x16 | PCIe 3.0 x8 |

| DirectX Support | 12 (11_0) | 12 (12_0) |

| Vulkan Support | 1.2.175 | 1.2.170 |

| OpenGL Support | 4.6 | 4.6 |