NVIDIA GeForce GTX 980 (Laptop) vs NVIDIA GeForce GT 645 OEM

Comparative analysis of NVIDIA GeForce GTX 980 (Laptop) and NVIDIA GeForce GT 645 OEM videocards for all known characteristics in the following categories: Essentials, Technical info, Video outputs and ports, Compatibility, dimensions and requirements, API support, Memory, Technologies. Benchmark videocards performance analysis: 3DMark Fire Strike - Graphics Score, PassMark - G2D Mark, PassMark - G3D Mark, GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - T-Rex (Fps).

NVIDIA GeForce GTX 980 (Laptop)

NVIDIA GeForce GT 645 OEM

Differences

Reasons to consider the NVIDIA GeForce GTX 980 (Laptop)

Videocard is newer: launch date 3 year(s) 4 month(s) later
3.9x more texture fill rate: 144 billion / sec vs 37.2 GTexel / s
7.1x more pipelines: 2048 vs 288
4.9x better floating-point performance: 4,358 gflops vs 894.0 gflops
A newer manufacturing process allows for a more powerful, yet cooler running videocard: 28 nm vs 40 nm
4x more maximum memory size: 4 GB vs 1 GB

Launch date	21 September 2015 vs 24 April 2012
Texture fill rate	144 billion / sec vs 37.2 GTexel / s
Pipelines	2048 vs 288
Floating-point performance	4,358 gflops vs 894.0 gflops
Manufacturing process technology	28 nm vs 40 nm
Maximum memory size	4 GB vs 1 GB

Reasons to consider the NVIDIA GeForce GT 645 OEM

Around 96% lower typical power consumption: 102 Watt vs 100-200 Watt
546.9x more memory clock speed: 3828 MHz vs 7.0 GB/s

Thermal Design Power (TDP)	102 Watt vs 100-200 Watt
Memory clock speed	3828 MHz vs 7.0 GB/s

Compare benchmarks

GPU 1: NVIDIA GeForce GTX 980 (Laptop)
GPU 2: NVIDIA GeForce GT 645 OEM

Name	NVIDIA GeForce GTX 980 (Laptop)	NVIDIA GeForce GT 645 OEM
3DMark Fire Strike - Graphics Score	4053
PassMark - G2D Mark		443
PassMark - G3D Mark		2006
GFXBench 4.0 - T-Rex (Frames)		1914
GFXBench 4.0 - T-Rex (Fps)		1914

Compare specifications (specs)

	NVIDIA GeForce GTX 980 (Laptop)	NVIDIA GeForce GT 645 OEM
Essentials
Architecture	Maxwell 2.0	Fermi 2.0
Code name	GM204	GF114
Launch date	21 September 2015	24 April 2012
Launch price (MSRP)	$395.82
Place in performance rating	566	568
Price now	$605.06
Type	Laptop	Desktop
Value for money (0-100)	20.91
Technical info
Boost clock speed	1216 MHz
CUDA cores	2048
Floating-point performance	4,358 gflops	894.0 gflops
Manufacturing process technology	28 nm	40 nm
Pipelines	2048	288
Texture fill rate	144 billion / sec	37.2 GTexel / s
Thermal Design Power (TDP)	100-200 Watt	102 Watt
Transistor count	5,200 million	1,950 million
Core clock speed		776 MHz
Video outputs and ports
Audio input for HDMI	Internal
Display Connectors	Dual Link DVI-I, HDMI 2.0, 3x DisplayPort 1.2	2x DVI, 1x mini-HDMI
DisplayPort Multimode (DP++) support	1
G-SYNC support
HDCP
HDMI
Maximum VGA resolution	2048x1536
Multi monitor support
VGA аnalog display support	1
Compatibility, dimensions and requirements
Bus support	PCI Express 3.0
Interface	MXM-B (3.0)	PCIe 2.0 x16
Laptop size	large
SLI options	1
Length		210 mm
API support
DirectX	12.0 (12_1)	12.0 (11_0)
OpenCL	1.2
OpenGL	4.5	4.6
Memory
Maximum RAM amount	4 GB	1 GB
Memory bandwidth	224 GB / s	91.9 GB / s
Memory bus width	256 Bit	192 Bit
Memory clock speed	7.0 GB/s	3828 MHz
Memory type	GDDR5	GDDR5
Shared memory	0
Technologies
3D Vision
Adaptive Vertical Sync
BatteryBoost
CUDA
GameStream
GameWorks
GeForce Experience
GeForce ShadowPlay
GPU Boost
H.264, VC1, MPEG2 1080p video decoder
Optimus
SLI
Surround