NVIDIA GeForce GT 745A vs AMD Radeon HD 6490M

Comparative analysis of NVIDIA GeForce GT 745A and AMD Radeon HD 6490M 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 - Manhattan (Frames), GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - Manhattan (Fps), GFXBench 4.0 - T-Rex (Fps).

NVIDIA GeForce GT 745A

AMD Radeon HD 6490M

Differences

Reasons to consider the NVIDIA GeForce GT 745A

Videocard is newer: launch date 2 year(s) 7 month(s) later
Around 5% higher core clock speed: 837 MHz vs 800 MHz
4.2x more texture fill rate: 26.78 GTexel / s vs 6.4 GTexel / s
2.4x more pipelines: 384 vs 160
2.5x better floating-point performance: 642.8 gflops vs 256 gflops
A newer manufacturing process allows for a more powerful, yet cooler running videocard: 28 nm vs 40 nm
4x more maximum memory size: 2 GB vs 512 MB
3.2x better performance in PassMark - G3D Mark: 1228 vs 378
4.1x better performance in Geekbench - OpenCL: 19809 vs 4866
4.9x better performance in CompuBench 1.5 Desktop - Face Detection (mPixels/s): 12.446 vs 2.554
2.9x better performance in CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s): 278.161 vs 96.344
2.5x better performance in CompuBench 1.5 Desktop - Video Composition (Frames/s): 14.778 vs 6.001
2.4x better performance in CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s): 25.74 vs 10.814

Specifications (specs)
Launch date	26 August 2013 vs 4 January 2011
Core clock speed	837 MHz vs 800 MHz
Texture fill rate	26.78 GTexel / s vs 6.4 GTexel / s
Pipelines	384 vs 160
Floating-point performance	642.8 gflops vs 256 gflops
Manufacturing process technology	28 nm vs 40 nm
Maximum memory size	2 GB vs 512 MB
Benchmarks
PassMark - G3D Mark	1228 vs 378
Geekbench - OpenCL	19809 vs 4866
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	12.446 vs 2.554
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	278.161 vs 96.344
CompuBench 1.5 Desktop - Video Composition (Frames/s)	14.778 vs 6.001
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	25.74 vs 10.814

Reasons to consider the AMD Radeon HD 6490M

Around 78% higher memory clock speed: 3200 MHz vs 1800 MHz
Around 60% better performance in PassMark - G2D Mark: 514 vs 322

Specifications (specs)
Memory clock speed	3200 MHz vs 1800 MHz
Benchmarks
PassMark - G2D Mark	514 vs 322

Compare benchmarks

GPU 1: NVIDIA GeForce GT 745A
GPU 2: AMD Radeon HD 6490M

PassMark - G3D Mark

GPU 1

GPU 2

1228

378

PassMark - G2D Mark

GPU 1

GPU 2

322

514

Geekbench - OpenCL

GPU 1

GPU 2

19809

4866

CompuBench 1.5 Desktop - Face Detection (mPixels/s)

GPU 1

GPU 2

12.446

2.554

CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)

GPU 1

GPU 2

278.161

96.344

CompuBench 1.5 Desktop - Video Composition (Frames/s)

GPU 1

GPU 2

14.778

6.001

CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)

GPU 1

GPU 2

25.74

10.814

Name	NVIDIA GeForce GT 745A	AMD Radeon HD 6490M
PassMark - G3D Mark	1228	378
PassMark - G2D Mark	322	514
Geekbench - OpenCL	19809	4866
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	12.446	2.554
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	278.161	96.344
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.883	0
CompuBench 1.5 Desktop - Video Composition (Frames/s)	14.778	6.001
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	25.74	10.814
GFXBench 4.0 - Manhattan (Frames)		1405
GFXBench 4.0 - T-Rex (Frames)		2543
GFXBench 4.0 - Manhattan (Fps)		1405
GFXBench 4.0 - T-Rex (Fps)		2543

Compare specifications (specs)

	NVIDIA GeForce GT 745A	AMD Radeon HD 6490M
Essentials
Architecture	Kepler	TeraScale 2
Code name	GK107	Seymour
Launch date	26 August 2013	4 January 2011
Place in performance rating	1194	1196
Type	Desktop	Laptop
Launch price (MSRP)		$1,193.03
Price now		$1,193.03
Value for money (0-100)		0.39
Technical info
Core clock speed	837 MHz	800 MHz
Floating-point performance	642.8 gflops	256 gflops
Manufacturing process technology	28 nm	40 nm
Pipelines	384	160
Texture fill rate	26.78 GTexel / s	6.4 GTexel / s
Thermal Design Power (TDP)	33 Watt
Transistor count	1,270 million	370 million
Video outputs and ports
Display Connectors	No outputs	No outputs
Compatibility, dimensions and requirements
Interface	PCIe 3.0 x16	PCIe 2.0 x16
API support
DirectX	12.0 (11_0)	11.2 (11_0)
OpenGL	4.6	4.4
Memory
Maximum RAM amount	2 GB	512 MB
Memory bandwidth	28.8 GB / s	25.6 GB / s
Memory bus width	128 Bit	64 Bit
Memory clock speed	1800 MHz	3200 MHz
Memory type	DDR3	DDR3 / GDDR5
Shared memory		0