NVIDIA GeForce GTX 660 Rev. 2 vs NVIDIA GeForce 7900 GS

Comparative analysis of NVIDIA GeForce GTX 660 Rev. 2 and NVIDIA GeForce 7900 GS 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: CompuBench 1.5 Desktop - Face Detection (mPixels/s), CompuBench 1.5 Desktop - T-Rex (Frames/s), PassMark - G3D Mark, PassMark - G2D Mark.

NVIDIA GeForce GTX 660 Rev. 2

NVIDIA GeForce 7900 GS

Differences

Reasons to consider the NVIDIA GeForce GTX 660 Rev. 2

Videocard is newer: launch date 8 year(s) 4 month(s) later
2.2x more core clock speed: 980 MHz vs 450 MHz
9.2x more texture fill rate: 82.56 GTexel / s vs 9 GTexel / s
A newer manufacturing process allows for a more powerful, yet cooler running videocard: 28 nm vs 90 nm
8x more maximum memory size: 2 GB vs 256 MB
4.6x more memory clock speed: 6008 MHz vs 1320 MHz

Launch date	13 September 2014 vs 1 May 2006
Core clock speed	980 MHz vs 450 MHz
Texture fill rate	82.56 GTexel / s vs 9 GTexel / s
Manufacturing process technology	28 nm vs 90 nm
Maximum memory size	2 GB vs 256 MB
Memory clock speed	6008 MHz vs 1320 MHz

Reasons to consider the NVIDIA GeForce 7900 GS

2.9x lower typical power consumption: 49 Watt vs 140 Watt

Thermal Design Power (TDP)	49 Watt vs 140 Watt

Compare benchmarks

GPU 1: NVIDIA GeForce GTX 660 Rev. 2
GPU 2: NVIDIA GeForce 7900 GS

Name	NVIDIA GeForce GTX 660 Rev. 2	NVIDIA GeForce 7900 GS
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	39.216
CompuBench 1.5 Desktop - T-Rex (Frames/s)	1.173
PassMark - G3D Mark		254
PassMark - G2D Mark		68

Compare specifications (specs)

	NVIDIA GeForce GTX 660 Rev. 2	NVIDIA GeForce 7900 GS
Essentials
Architecture	Kepler	Curie
Code name	GK104	G71
Launch date	13 September 2014	1 May 2006
Place in performance rating	1510	1507
Type	Desktop	Desktop
Launch price (MSRP)		$259
Technical info
Boost clock speed	1032 MHz
Core clock speed	980 MHz	450 MHz
Floating-point performance	1,981 gflops
Manufacturing process technology	28 nm	90 nm
Pipelines	960
Texture fill rate	82.56 GTexel / s	9 GTexel / s
Thermal Design Power (TDP)	140 Watt	49 Watt
Transistor count	3,540 million	278 million
Video outputs and ports
Display Connectors	2x DVI, 1x HDMI, 1x DisplayPort	2x DVI, 1x S-Video
Compatibility, dimensions and requirements
Interface	PCIe 3.0 x16	PCIe 1.0 x16
Length	241 mm	198 mm
Supplementary power connectors	1x 6-pin	1x 6-pin
API support
DirectX	12.0 (11_0)	9.0c
OpenGL	4.6	2.1
Memory
Maximum RAM amount	2 GB	256 MB
Memory bandwidth	144.2 GB / s	42.2 GB / s
Memory bus width	192 Bit	256 Bit
Memory clock speed	6008 MHz	1320 MHz
Memory type	GDDR5	GDDR3