GeForce GTX 645 OEM: specs and benchmarks
Summary
NVIDIA started GeForce GTX 645 OEM sales 22 April 2013. This is a desktop graphics card based on a Kepler architecture and made with 28 nm manufacturing process. It is primarily aimed at gamer market. 1 GB of GDDR5 memory clocked at 1 GHz are supplied, and together with 128 Bit memory interface this creates a bandwidth of 64 GB/s.
Compatibility-wise, this is a single-slot graphics card attached via PCIe 3.0 x16 interface. Its manufacturer default version has a length of 147 mm. No additional power connector is required, and power consumption is at 65 Watt.
Primary details
Some basic facts about GeForce GTX 645 OEM: architecture, market segment, release date etc.
| Place in the ranking | not rated | |
| Place by popularity | not in top-100 | |
| Architecture | Kepler (2012−2018) | |
| GPU code name | GK106 | |
| Market segment | Desktop | |
| Release date | 22 April 2013 (11 years ago) |
Detailed specifications
GeForce GTX 645 OEM's specs such as number of shaders, GPU base clock, manufacturing process, texturing and calculation speed. These parameters indirectly speak of GeForce GTX 645 OEM's performance, but for precise assessment you have to consider its benchmark and gaming test results.
| Pipelines / CUDA cores | 576 | of 21760 (GeForce RTX 5090) |
| Core clock speed | 824 MHz | of 2610 MHz (Radeon RX 6500 XT) |
| Number of transistors | 2,540 million | of 208,000 million (B200 SXM 192 GB) |
| Manufacturing process technology | 28 nm | of 3 nm (Arc Graphics 140V) |
| Power consumption (TDP) | 65 Watt | of 2400 Watt (Data Center GPU Max Subsystem) |
| Texture fill rate | 39.55 | of 2,554 (Radeon Instinct MI300X) |
| Floating-point processing power | 0.9492 TFLOPS | of 109.7 (GeForce RTX 5090) |
| ROPs | 16 | of 192 (Radeon RX 7900 XTX) |
| TMUs | 48 | of 1280 (Data Center GPU Max NEXT) |
Form factor & compatibility
This section provides details about the physical dimensions of GeForce GTX 645 OEM 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 3.0 x16 | |
| Length | 147 mm | |
| Width | 1-slot | |
| Supplementary power connectors | None |
VRAM capacity and type
Parameters of memory installed on GeForce GTX 645 OEM: 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 | GDDR5 | |
| Maximum RAM amount | 1 GB | of 294912 (Radeon Instinct MI325X) |
| Memory bus width | 128 Bit | of 8192 Bit (Radeon Instinct MI250X) |
| Memory clock speed | 1000 MHz | of 20000 (RTX 5000 Ada Generation Mobile) |
| Memory bandwidth | 64 GB/s | of 5,171 GB/s (Radeon Instinct MI300X) |
Connectivity and outputs
Types and number of video connectors present on GeForce GTX 645 OEM. 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 | 1x DVI, 1x HDMI, 1x DisplayPort | |
| HDMI | + |
API compatibility
APIs supported by GeForce GTX 645 OEM, sometimes including their particular versions.
| DirectX | 12 (11_0) | |
| Shader Model | 5.1 | |
| OpenGL | 4.6 | |
| OpenCL | 1.2 | |
| Vulkan | 1.1.126 | |
| CUDA | 3.0 |
AMD equivalent
According to our data, the closest AMD alternative to GeForce GTX 645 OEM is Radeon HD 4770.
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 GTX 645 OEM according to our statistics.
