Radeon R7 A260 vs GeForce GT 640 OEM Rebrand
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | not rated | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Architecture | Fermi 2.0 (2010−2014) | GCN 3.0 (2014−2019) |
| GPU code name | GF116 | Topaz |
| Market segment | Desktop | Desktop |
| Release date | 24 April 2012 (13 years ago) | 2014 (12 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 | 144 | 384 |
| Core clock speed | 720 MHz | 900 MHz |
| Boost clock speed | no data | 980 MHz |
| Number of transistors | 1,170 million | 1,550 million |
| Manufacturing process technology | 40 nm | 28 nm |
| Power consumption (TDP) | 75 Watt | no data |
| Texture fill rate | 17.28 | 23.52 |
| Floating-point processing power | 0.4147 TFLOPS | no data |
| ROPs | 24 | 8 |
| TMUs | 24 | 24 |
| L1 Cache | 192 KB | no data |
| L2 Cache | 384 KB | no data |
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).
| Interface | PCIe 2.0 x16 | PCIe 3.0 x8 |
| Length | 145 mm | no data |
| Width | 1-slot | no data |
| Supplementary power connectors | None | no data |
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 | DDR3 | GDDR5 |
| Maximum RAM amount | 1536 MB | 1 GB |
| Memory bus width | 192 Bit | 128 Bit |
| Memory clock speed | 800 MHz | 3.6 GB/s |
| Memory bandwidth | 38.4 GB/s | 57.6 GB/s |
Connectivity and outputs
This section shows the types and number of video connectors on each GPU. The data applies specifically to desktop reference models (for example, NVIDIA’s Founders Edition). OEM partners often modify both the number and types of ports. On notebook GPUs, video‐output options are determined by the laptop’s design rather than the graphics chip itself.
| Display Connectors | 2x DVI, 1x mini-HDMI | Portable Device Dependent |
| HDMI | + | - |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (11_0) | 12 (12_0) |
| Shader Model | 5.1 | 6.5 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 1.1 | 2.1 |
| Vulkan | N/A | 1.2.170 |
| CUDA | 2.1 | - |
Pros & cons summary
| Maximum RAM amount | 1536 MB | 1 GB |
| Chip lithography | 40 nm | 28 nm |
GT 640 OEM Rebrand has a 50% higher maximum VRAM amount.
R7 A260, on the other hand, has a 42.9% more advanced lithography process.
We couldn't decide between GeForce GT 640 OEM Rebrand and Radeon R7 A260. We've got no test results to judge.
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