Radeon R7 340 OEM vs HD 7660G
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 1042 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | 2.45 | no data |
| Architecture | TeraScale 3 (2010−2013) | GCN 1.0 (2011−2020) |
| GPU code name | Devastator | Oland |
| Market segment | Laptop | Desktop |
| Release date | 15 May 2012 (12 years ago) | 5 May 2015 (9 years ago) |
Detailed specifications
General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.
| Pipelines / CUDA cores | 384 | 384 |
| Core clock speed | 686 MHz | 730 MHz |
| Boost clock speed | 686 MHz | 780 MHz |
| Number of transistors | 1,303 million | 950 million |
| Manufacturing process technology | 32 nm | 28 nm |
| Power consumption (TDP) | 35 Watt | 50 Watt |
| Texture fill rate | 16.46 | 18.72 |
| Floating-point processing power | 0.5268 TFLOPS | 0.599 TFLOPS |
| ROPs | 8 | 8 |
| TMUs | 24 | 24 |
Form factor & compatibility
Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).
| Laptop size | medium sized | no data |
| Interface | IGP | PCIe 3.0 x8 |
| Width | no data | 1-slot |
| Supplementary power connectors | no data | None |
VRAM capacity and type
Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.
| Memory type | System Shared | DDR3 |
| Maximum RAM amount | System Shared | 2 GB |
| Memory bus width | System Shared | 128 Bit |
| Memory clock speed | System Shared | 900 MHz |
| Memory bandwidth | no data | 28.8 GB/s |
| Shared memory | + | no data |
Connectivity and outputs
Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.
| Display Connectors | No outputs | 1x DVI, 1x HDMI, 1x VGA |
| HDMI | - | + |
API compatibility
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 11.2 (11_0) | 12 (11_1) |
| Shader Model | 5.0 | 5.1 |
| OpenGL | 4.4 | 4.6 |
| OpenCL | 1.2 | 1.2 |
| Vulkan | N/A | 1.2.131 |
Pros & cons summary
| Recency | 15 May 2012 | 5 May 2015 |
| Chip lithography | 32 nm | 28 nm |
| Power consumption (TDP) | 35 Watt | 50 Watt |
HD 7660G has 42.9% lower power consumption.
R7 340 OEM, on the other hand, has an age advantage of 2 years, and a 14.3% more advanced lithography process.
We couldn't decide between Radeon HD 7660G and Radeon R7 340 OEM. We've got no test results to judge.
Be aware that Radeon HD 7660G is a notebook card while Radeon R7 340 OEM is a desktop one.
Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.
Comparisons with similar GPUs
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