home > GeForce GT640 1024MB DDR3 OC LP / SX640LS1024JC

 
GeForce GT640 1024MB DDR3 OC LP / SX640LS1024JC

Sparkle GeForce GT640 1024MB DDR3 OC LP (part number SX640LS1024JC) is a desktop graphics processing unit, based on NVIDIA GeForce GT 640 DDR3. The GPU boasts Kepler architecture, and it is fabricated on 28 nm manufacturing process. The card has graphics clocked at 925 MHz. Furthermore, it has 384 CUDA cores, 32 texture units, and 16 ROPs. The GeForce GT640 1024MB DDR3 OC LP has 1 GB of DDR3 memory. Since the memory operates at 891 MHz, and utilizes 128 bit interface, the effective memory bandwidth is 28.5 GB/s. The GPU has PCI Express 3.0 interface, and requires a single slot on the motherboard. Like the reference design, this model has the maximum power consumption of 65 Watt.

Please see below for detailed specifications of the card.

Sparkle GeForce GT640 1024MB DDR3 OC LP GPU specifications

Name / Brand / Architecture

Manufacturer: Sparkle
Model: GeForce GT**0 **MB DDR3 OC LP
Part number: SX**0LS**JC
Based on: NVIDIA GeForce GT **0 DDR3 [Compare]
Target market segment: Desktop
Die name: GK 107
Architecture: Kepler
Fabrication process: 28 nm
Transistors: 1.3 billion
Bus interface: PCI-E 3.0 x 16

Frequency

Graphics clock: 925 MHz

Memory specifications

Memory size: ** MB
Memory type: DDR3
Memory clock: 891 MHz
Memory clock (effective): 1782 MHz
Memory interface width: 128-bit
Memory bandwidth: 28.5 GB/s

Cores / Texture

CUDA: 2.1
CUDA cores: 384
ROPs: 16
Texture units: 32
RAMDACs: 400 MHz

Electric characteristics

Maximum GPU temp: 98C
Maximum power draw: 65 W

Video features

Multi-monitor: Up to 2 displays
Maximum DVI resolution: **0 x 1600
Maximum HDMI resolution: 4096 x 2160 @ 24 Hz or 3840 x 2160 @ 30 Hz
Maximum VGA resolution: 2048 x 1536
Anti-Aliasing technologies: FXAA
TXAA
HDMI: Yes
HDMI version: 1.4a

Performance

Pixel fill rate: 14.8 Gigapixels/s
Texture fill rate: 29.6 Gigatexels/s
Single presision compute power: 710.4 GFLOPS

External connectors

Standard display connectors: Dual-Link DVI-D
HDMI
VGA
Audio input for HDMI: Yes

Dimensions

Size (length x height): 5.71 inches (145 mm) x 2.72 inches (69 mm)
Width: Single Slot

Other features / Support

Other features: 3D Vision  ? 
3D Vision Surround  ? 
HDCP
PhysX
OpenGL support: 4.2
DirectX support: 11.1
Shader model: 5.0
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