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NVIDIA GeForce GT 645 OEM
- Graphics Processor
- GF114
- Cores
- 288
- TMUs
- 48
- ROPs
- 24
- Memory Size
- 1024 MB
- Memory Type
- GDDR5
- Bus Width
- 192 bit
GPU
Recommended Gaming Resolutions:
- 1366x768
- 1600x900
- 1920x1080
The GeForce GT 645 OEM was a graphics card by NVIDIA, launched on April 24th, 2012. Built on the 40 nm process, and based on the GF114 graphics processor, the card supports DirectX 12. Even though it supports DirectX 12, the feature level is only 11_0, which can be problematic with newer DirectX 12 titles. The GF114 graphics processor is a large chip with a die area of 332 mm² and 1,950 million transistors. Unlike the fully unlocked GeForce GTX 560 Ti, which uses the same GPU but has all 384 shaders enabled, NVIDIA has disabled some shading units on the GeForce GT 645 OEM to reach the product's target shader count. It features 288 shading units, 48 texture mapping units, and 24 ROPs. NVIDIA has paired 1,024 MB GDDR5 memory with the GeForce GT 645 OEM, which are connected using a 192-bit memory interface. The GPU is operating at a frequency of 776 MHz, memory is running at 957 MHz (3.8 Gbps effective).
Being a dual-slot card, its power draw is rated at 102 W maximum. Display outputs include: 2x DVI, 1x mini-HDMI 1.3a. GeForce GT 645 OEM is connected to the rest of the system using a PCI-Express 2.0 x16 interface. The card measures 210 mm in length, and features a dual-slot cooling solution.
Being a dual-slot card, its power draw is rated at 102 W maximum. Display outputs include: 2x DVI, 1x mini-HDMI 1.3a. GeForce GT 645 OEM is connected to the rest of the system using a PCI-Express 2.0 x16 interface. The card measures 210 mm in length, and features a dual-slot cooling solution.
Graphics Processor
Graphics Card
- Release Date
- Apr 24th, 2012
- Generation
- GeForce 600
- Predecessor
- GeForce 500
- Successor
- GeForce 700
- Production
- End-of-life
- Bus Interface
- PCIe 2.0 x16
Relative Performance
Based on TPU review data: "Performance Summary" at 1920x1080, 4K for 2080 Ti and faster.
Performance estimated based on architecture, shader count and clocks.
Clock Speeds
- GPU Clock
- 776 MHz
- Shader Clock
- 1552 MHz
- Memory Clock
-
957 MHz
3.8 Gbps effective
Memory
- Memory Size
- 1024 MB
- Memory Type
- GDDR5
- Memory Bus
- 192 bit
- Bandwidth
- 91.87 GB/s
Render Config
- Shading Units
- 288
- TMUs
- 48
- ROPs
- 24
- SM Count
- 6
- L1 Cache
- 64 KB (per SM)
- L2 Cache
- 384 KB
Theoretical Performance
- Pixel Rate
- 9.312 GPixel/s
- Texture Rate
- 37.25 GTexel/s
- FP32 (float)
- 894.0 GFLOPS
- FP64 (double)
- 74.50 GFLOPS (1:12)
Board Design
- Slot Width
- Dual-slot
- Length
- 210 mm
8.3 inches
- TDP
- 102 W
- Suggested PSU
- 300 W
- Outputs
- 2x DVI
1x mini-HDMI 1.3a
Graphics Features
- DirectX
- 12 (11_0)
- OpenGL
- 4.6
- OpenCL
- 1.1
- Vulkan
- N/A
- CUDA
- 2.1
- Shader Model
- 5.1
Card Notes
| Rebranded GTX 560 SE with higher core clock. Variant Memory: 1536MB |
GF114 GPU Notes
| PureVideo HD: VP4 VDPAU: Feature Set C Latest Drivers: Windows XP / Server 2003 x64: GeForce Release 368.81 Windows Vista: GeForce Release 365.19 Windows 7 / 8 / 8.1 / 10: GeForce Release 391.35 |
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