GeForce GT 640 OEM Rebrand: specs and benchmarks
Contents
Summary
NVIDIA started GeForce GT 640 OEM Rebrand sales 24 April 2012. This is a desktop graphics card based on a Fermi 2.0 architecture and made with 40 nm manufacturing process. It is primarily aimed at gamer market. 1536 MB of DDR3 memory clocked at 0.8 GHz are supplied, and together with 192 Bit memory interface this creates a bandwidth of 38.4 GB/s.
Compatibility-wise, this is a single-slot graphics card attached via PCIe 2.0 x16 interface. Its manufacturer default version has a length of 145 mm. No additional power connector is required, and power consumption is at 75 Watt.
Primary details
Some basic facts about GeForce GT 640 OEM Rebrand: architecture, market segment, release date etc.
| Place in the ranking | not rated | |
| Place by popularity | not in top-100 | |
| Architecture | Fermi 2.0 (2010−2014) | |
| GPU code name | GF116 | |
| Market segment | Desktop | |
| Release date | 24 April 2012 (13 years ago) |
Detailed specifications
GeForce GT 640 OEM Rebrand's specs such as number of shaders, GPU base clock, manufacturing process, texturing and calculation speed. These parameters indirectly speak of GeForce GT 640 OEM Rebrand's performance, but for precise assessment you have to consider its benchmark and gaming test results.
| Pipelines / CUDA cores | 144 | of 960 (GeForce GTX 660) |
| Core clock speed | 720 MHz | of 980 (GeForce GT 755M SLI) |
| Number of transistors | 1,170 million | of 100,000 million (Data Center GPU Max 1100) |
| Manufacturing process technology | 40 nm | of 0.003 MB (Arc Graphics 140V) |
| Power consumption (TDP) | 75 Watt | of 235 (FirePro S9150) |
| Texture fill rate | 17.28 | of 1,968 (RTX PRO 6000 Blackwell) |
| Floating-point processing power | 0.4147 TFLOPS | of 126 (RTX PRO 6000 Blackwell) |
| ROPs | 24 | of 512 (Moore Threads MTT S4000) |
| TMUs | 24 | of 896 (Data Center GPU Max 1350) |
| L1 Cache | 192 KB | of 64 MB (Data Center GPU Max 1550) |
| L2 Cache | 384 KB | of 408 MB (Data Center GPU Max 1350) |
Form factor & compatibility
This section provides details about the physical dimensions of GeForce GT 640 OEM Rebrand and its compatibility with other computer components. This information is useful when selecting a computer configuration or upgrading an existing one. For desktop graphics cards, it includes details about the interface and bus (for motherboard compatibility) and additional power connectors (for power supply compatibility).
| Interface | PCIe 2.0 x16 | |
| Length | 145 mm | |
| Width | 1-slot | |
| Supplementary power connectors | None |
VRAM capacity and type
Parameters of memory installed on GeForce GT 640 OEM Rebrand: its type, size, bus, clock and resulting bandwidth. Note that GPUs integrated into processors have no dedicated memory and use a shared part of system RAM instead.
| Memory type | DDR3 | |
| Maximum RAM amount | 1536 MB | of 288 GB (Radeon Instinct MI325X) |
| Memory bus width | 192 Bit | of 384 (GeForce GTX 980 Ti) |
| Memory clock speed | 800 MHz | of 16384000 MB (GeForce RTX 4050 Mobile) |
| Memory bandwidth | 38.4 GB/s | of 983040 MB (GeForce RTX 5080) |
Connectivity and outputs
Types and number of video connectors present on GeForce GT 640 OEM Rebrand. As a rule, this section is relevant only for desktop reference graphics cards, since for notebook ones the availability of certain video outputs depends on the laptop model, while non-reference desktop models can (though not necessarily will) bear a different set of video ports.
| Display Connectors | 2x DVI, 1x mini-HDMI | |
| HDMI | + |
API and SDK support
APIs supported by GeForce GT 640 OEM Rebrand, sometimes including their particular versions.
| DirectX | 12 (11_0) | |
| Shader Model | 5.1 | |
| OpenGL | 4.6 | |
| OpenCL | 1.1 | |
| Vulkan | N/A | |
| CUDA | 2.1 |
AMD equivalent
According to our data, the closest AMD alternative to GeForce GT 640 OEM Rebrand is Radeon HD 3850 AGP.
Similar GPUs
Here is our recommendation of several graphics cards that are more or less close in performance to the one reviewed.
Recommended processors
These processors are most commonly used with GeForce GT 640 OEM Rebrand according to our statistics.
