GeForce GT640 1024MB DDR3 OC LP / SX640LS1024JCA

Sparkle GeForce GT640 1024MB DDR3 OC LP (part number SX640LS1024JCA) is one of a few Sparkle desktop graphics processing units, based on NVIDIA GeForce GT 640 DDR3. The GPU features Kepler architecture, and it is produced on 28 nm manufacturing process. The card has graphics clocked at 925 MHz. It also boasts 384 CUDA cores, 32 texture units, and 16 ROPs. The GeForce GT640 1024MB DDR3 OC LP embeds 1 GB of DDR3 memory. The memory utilizes 128 bit bus, and runs at 891 MHz. This allows the card to have 28.5 GB/s memory bandwidth. The GPU supports PCI Express 3.0 interface, and needs a single slot on the motherboard. This model uses up to 65 Watt of power.

More detailed specifications of the graphics unit are available below.

Sparkle GeForce GT640 1024MB DDR3 OC LP GPU specifications

Name / Brand / Architecture
Manufacturer:	Sparkle
Model:	GeForce GT0 MB DDR3 OC LP
Part number:	SX0LSJCA
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

Mobile GPU

Sparkle GeForce GT640 1024MB DDR3 OC LP GPU specifications

Name / Brand / Architecture

Frequency

Memory specifications

Cores / Texture

Electric characteristics

Video features

Performance

External connectors

Dimensions

Other features / Support