home > GeForce GT640 2048MB DDR3 OC Dragon Cyclone / SX640S2048LKD

 
GeForce GT640 2048MB DDR3 OC Dragon Cyclone / SX640S2048LKD

Sparkle GeForce GT640 2048MB DDR3 OC Dragon Cyclone (part number SX640S2048LKD) is one of a few Sparkle Graphics Processing Units for desktop market segment. Based on NVIDIA GeForce GT 640 DDR3, and The GPU, produced on 28 nm manufacturing process, uses Kepler architecture. The card's graphics frequency is 954 MHz. It also boasts 384 CUDA cores, 32 texture units, and 16 ROPs. The GeForce GT640 2048MB DDR3 OC Dragon Cyclone comes with 2 GB of DDR3 memory. Because 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 needs 2 slots on the motherboard. This model has the maximum power draw of 65 Watt.

Below you will find more detailed specs of the card.

Sparkle GeForce GT640 2048MB DDR3 OC Dragon Cyclone GPU specifications

Name / Brand / Architecture

Manufacturer: Sparkle
Model: GeForce GT**0 2048MB DDR3 OC Dragon Cyclone
Part number: SX**0S2048LKD
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: 954 MHz

Memory specifications

Memory size: 2048 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: 15.26 Gigapixels/s
Texture fill rate: 30.53 Gigatexels/s
Single presision compute power: 732.67 GFLOPS

External connectors

Standard display connectors: Dual Link DVI-D
Dual Link DVI-I
Mini HDMI
Single Link DVI-D
Audio input for HDMI: Yes

Dimensions

Size (length x height): 6.69 inches (170 mm) x 4.376 inches (111 mm)
Width: Dual 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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