Radeon R4 Graphics vs HD 7640G
Primary Details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in performance ranking | 1019 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-Effectiveness Evaluation | 0.04 | no data |
| Architecture | Terascale 3 (2010−2013) | GCN 2.0 (2013−2017) |
| GPU code name | Trinity | Beema |
| Market segment | Laptop | Desktop |
| Release date | 15 May 2012 (11 years ago) | 11 June 2014 (9 years ago) |
| Current price | $338 | $240 |
Cost-Effectiveness Evaluation
Performance to price ratio. The higher, the better.
Detailed Specifications
General performance parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. These parameters indirectly speak of performance, but for precise assessment you have to consider their benchmark and gaming test results. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.
| Pipelines / CUDA cores | 256 | 128 |
| Core clock speed | 497 MHz | 800 MHz |
| Boost clock speed | 686 MHz | no data |
| Number of transistors | 1,303 million | 930 million |
| Manufacturing process technology | 32 nm | 28 nm |
| Power consumption (TDP) | 35 Watt | 15 Watt |
| Texture fill rate | 10.96 | 6.400 |
| Floating-point performance | no data | 204.8 gflops |
Form Factor & Compatibility
Information on Radeon HD 7640G and Radeon R4 Graphics compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop video cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility). For notebook video cards it's notebook size, connection slot and bus, if the video card is inserted into a slot instead of being soldered to the notebook motherboard.
| Laptop size | medium sized | no data |
| Interface | IGP | IGP |
| Width | no data | IGP |
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 | System Shared |
| Maximum RAM amount | System Shared | System Shared |
| Memory bus width | System Shared | System Shared |
| Memory clock speed | System Shared | System Shared |
| 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 | No outputs |
API Compatibility
List of supported graphics and general-purpose computing APIs, including their specific versions.
| DirectX | 11.2 (11_0) | 12 (12_0) |
| Shader Model | 5.0 | 6.3 |
| OpenGL | 4.4 | 4.6 |
| OpenCL | 1.2 | 2.0 |
| Vulkan | N/A | 1.2.131 |
Pros & Cons Summary
| Recency | 15 May 2012 | 11 June 2014 |
| Chip lithography | 32 nm | 28 nm |
| Power consumption (TDP) | 35 Watt | 15 Watt |
We couldn't decide between Radeon HD 7640G and Radeon R4 Graphics. We've got no test results to judge.
Be aware that Radeon HD 7640G is a notebook card while Radeon R4 Graphics is a desktop one.
Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.
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