NVIDIA GeForce GT 745A vs AMD Radeon HD 7660D

Comparative analysis of NVIDIA GeForce GT 745A and AMD Radeon HD 7660D videocards for all known characteristics in the following categories: Essentials, Technical info, Video outputs and ports, Compatibility, dimensions and requirements, API support, Memory. Benchmark videocards performance analysis: PassMark - G3D Mark, PassMark - G2D Mark, Geekbench - OpenCL, CompuBench 1.5 Desktop - Face Detection (mPixels/s), CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s), CompuBench 1.5 Desktop - T-Rex (Frames/s), CompuBench 1.5 Desktop - Video Composition (Frames/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s), GFXBench 4.0 - Car Chase Offscreen (Frames), GFXBench 4.0 - Car Chase Offscreen (Fps), GFXBench 4.0 - Manhattan (Frames), GFXBench 4.0 - Manhattan (Fps), GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - T-Rex (Fps).

NVIDIA GeForce GT 745A

AMD Radeon HD 7660D

Differences

Reasons to consider the NVIDIA GeForce GT 745A

Videocard is newer: launch date 11 month(s) later
Around 32% higher core clock speed: 837 MHz vs 633 MHz
A newer manufacturing process allows for a more powerful, yet cooler running videocard: 28 nm vs 32 nm
2.4x better performance in PassMark - G3D Mark: 1228 vs 503
Around 81% better performance in PassMark - G2D Mark: 322 vs 178
9.7x better performance in Geekbench - OpenCL: 19809 vs 2052

Specifications (specs)
Launch date	26 August 2013 vs 26 September 2012
Core clock speed	837 MHz vs 633 MHz
Manufacturing process technology	28 nm vs 32 nm
Benchmarks
PassMark - G3D Mark	1228 vs 503
PassMark - G2D Mark	322 vs 178
Geekbench - OpenCL	19809 vs 2052

Compare benchmarks

GPU 1: NVIDIA GeForce GT 745A
GPU 2: AMD Radeon HD 7660D

PassMark - G3D Mark

GPU 1

GPU 2

1228

503

PassMark - G2D Mark

GPU 1

GPU 2

322

178

Geekbench - OpenCL

GPU 1

GPU 2

19809

2052

Name	NVIDIA GeForce GT 745A	AMD Radeon HD 7660D
PassMark - G3D Mark	1228	503
PassMark - G2D Mark	322	178
Geekbench - OpenCL	19809	2052
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	12.446
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	278.161
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.883
CompuBench 1.5 Desktop - Video Composition (Frames/s)	14.778
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	25.74
GFXBench 4.0 - Car Chase Offscreen (Frames)		1001
GFXBench 4.0 - Car Chase Offscreen (Fps)		1001
GFXBench 4.0 - Manhattan (Frames)		2159
GFXBench 4.0 - Manhattan (Fps)		2159
GFXBench 4.0 - T-Rex (Frames)		3327
GFXBench 4.0 - T-Rex (Fps)		3327

Compare specifications (specs)

	NVIDIA GeForce GT 745A	AMD Radeon HD 7660D
Essentials
Architecture	Kepler	Terascale 3
Code name	GK107	Trinity
Launch date	26 August 2013	26 September 2012
Place in performance rating	1177	1179
Type	Desktop	Desktop
Technical info
Core clock speed	837 MHz	633 MHz
Floating-point performance	642.8 gflops
Manufacturing process technology	28 nm	32 nm
Pipelines	384	384
Texture fill rate	26.78 GTexel / s
Thermal Design Power (TDP)	33 Watt
Transistor count	1,270 million
Boost clock speed		800 MHz
Video outputs and ports
Display Connectors	No outputs
Compatibility, dimensions and requirements
Interface	PCIe 3.0 x16
API support
DirectX	12.0 (11_0)	11
OpenGL	4.6
Memory
Maximum RAM amount	2 GB
Memory bandwidth	28.8 GB / s
Memory bus width	128 Bit
Memory clock speed	1800 MHz
Memory type	DDR3
Shared memory		1