GeForce GTX 780 Rev. 2 vs 660

Place in performance ranking	403	400
Place by popularity	60	not in top-100
Value for money	2.35	1.50
Architecture	Kepler (2012−2018)	Kepler (2012−2018)
GPU code name	GK106	GK110B
Market segment	Desktop	Desktop
Release date	6 September 2012 (11 years ago)	10 September 2013 (10 years ago)
Launch price (MSRP)	$229	$649
Current price	$172 (0.8x MSRP)	$270 (0.4x MSRP)

Value for money

Performance to price ratio. The higher, the better.

GTX 660 has 57% better value for money than GTX 780 Rev. 2.

Technical specs

General performance parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. These parameters indirectly speak of performance, but for precise assessment you have to consider their benchmark and gaming test results. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores	960	2304
CUDA cores	960	no data
Core clock speed	980 MHz	863 MHz
Boost clock speed	1033 MHz	902 MHz
Number of transistors	2,540 million	7,080 million
Manufacturing process technology	28 nm	28 nm
Power consumption (TDP)	140 Watt	250 Watt
Texture fill rate	78.4 billion/sec	173.2
Floating-point performance	1,981 gflops	4,156 gflops

Size and compatibility

Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).

Bus support	PCI Express 3.0	no data
Interface	PCIe 3.0 x16	PCIe 3.0 x16
Length	9.5" (24.1 cm)	267 mm
Height	4.376" (11.1 cm)	no data
Width	2-slot	2-slot
Supplementary power connectors	One 6-pin	1x 6-pin + 1x 8-pin
SLI options	+	no data

Memory

Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.

Memory type	GDDR5	GDDR5
Maximum RAM amount	2 GB	3 GB
Memory bus width	192-bit GDDR5	384 Bit
Memory clock speed	6.0 GB/s	6008 MHz
Memory bandwidth	144.2 GB/s	288.4 GB/s

Video outputs and ports

Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.

Display Connectors	One Dual Link DVI-I, One Dual Link DVI-D, One HDMI, One DisplayPort	2x DVI, 1x HDMI, 1x DisplayPort
Multi monitor support	4 displays	no data
HDMI	+	+
HDCP	+	no data
Maximum VGA resolution	2048x1536	no data
Audio input for HDMI	Internal	no data

Technologies

Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.

3D Blu-Ray	+	no data
3D Gaming	+	no data
3D Vision	+	no data

API support

List of supported graphics and general-purpose computing APIs, including their specific versions.

DirectX	12 (11_0)	12 (11_1)
Shader Model	5.1	5.1
OpenGL	4.3	4.6
OpenCL	1.2	1.2
Vulkan	1.1.126	1.1.126
CUDA	+	3.5

Gaming performance

Let's see how good the compared graphics cards are for gaming. Particular gaming benchmark results are measured in FPS.

Average FPS across all PC games

Here are the average frames per second in a large set of popular games across different resolutions:

Full HD

47
+4.4%

45−50

−4.4%

Advantages and disadvantages

Performance score	10.33	10.35
Recency	6 September 2012	10 September 2013
Cost	$229	$649
Maximum RAM amount	2 GB	3 GB
Power consumption (TDP)	140 Watt	250 Watt