GeForce GT 620 vs GTX 660

Place in performance ranking	405	1076
Place by popularity	69	not in top-100
Cost-effectiveness evaluation	2.40	0.01
Architecture	Kepler (2012−2018)	Fermi (2010−2014)
GPU code name	GK106	GF108
Market segment	Desktop	Desktop
Release date	6 September 2012 (11 years ago)	15 May 2012 (12 years ago)
Launch price (MSRP)	$229	$39.99
Current price	$172 (0.8x MSRP)	$125 (3.1x MSRP)

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

GTX 660 has 23900% better value for money than GT 620.

Detailed specifications

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	96
CUDA cores	960	96
Core clock speed	980 MHz	700 MHz
Boost clock speed	1033 MHz	no data
Number of transistors	2,540 million	585 million
Manufacturing process technology	28 nm	40 nm
Power consumption (TDP)	140 Watt	49 Watt
Maximum GPU temperature	no data	98 °C
Texture fill rate	78.4 billion/sec	11.2 billion/sec
Floating-point performance	1,981 gflops	268.8 gflops

Form factor & 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	PCI Express 2.0
Interface	PCIe 3.0 x16	PCIe 2.0 x16
Length	9.5" (24.1 cm)	5.7" (14.5 cm)
Height	4.376" (11.1 cm)	2.7" (6.9 cm)
Width	2-slot	2-slot
Supplementary power connectors	One 6-pin	None
SLI options	+	no data

VRAM capacity and type

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	DDR3
Maximum RAM amount	2 GB	1 GB
Memory bus width	192-bit GDDR5	64 Bit
Memory clock speed	6.0 GB/s	1.8 GB/s
Memory bandwidth	144.2 GB/s	14.4 GB/s

Connectivity and outputs

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	Dual Link DVI-I, HDMI, VGA
Multi monitor support	4 displays	+
HDMI	+	+
HDCP	+	+
Maximum VGA resolution	2048x1536	2048x1536
Audio input for HDMI	Internal	Internal

Supported technologies

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

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

API compatibility

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

DirectX	12 (11_0)	12 (11_0)
Shader Model	5.1	5.1
OpenGL	4.3	4.2
OpenCL	1.2	1.1
Vulkan	1.1.126	N/A
CUDA	+	+

Synthetic benchmark performance

Non-gaming benchmark performance comparison. The combined score is measured on a 0-100 point scale.

Combined synthetic benchmark score

This is our combined benchmark performance score. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

GTX 660 10.35
+956%

GT 620 0.98

GTX 660 outperforms GT 620 by 956% based on our aggregate benchmark results.

Passmark

This is the most ubiquitous GPU benchmark, part of Passmark PerformanceTest suite. It gives the graphics card a thorough evaluation under various types of load, providing four separate benchmarks for Direct3D versions 9, 10, 11 and 12 (the last being done in 4K resolution if possible), and few more tests engaging DirectCompute capabilities.

Benchmark coverage: 25%

GTX 660 3999
+961%

GT 620 377

GTX 660 outperforms GT 620 by 961% in Passmark.

GeekBench 5 OpenCL

Geekbench 5 is a widespread graphics card benchmark combined from 11 different test scenarios. All these scenarios rely on direct usage of GPU's processing power, no 3D rendering is involved. This variation uses OpenCL API by Khronos Group.

Benchmark coverage: 9%

GTX 660 11285
+633%

GT 620 1540

GTX 660 outperforms GT 620 by 633% in GeekBench 5 OpenCL.

Octane Render OctaneBench

This is a special benchmark measuring graphics card performance in OctaneRender, which is a realistic GPU rendering engine by OTOY Inc., available either as a standalone program, or as a plugin for 3DS Max, Cinema 4D and many other apps. It renders four different static scenes, then compares render times with a reference GPU which is currently GeForce GTX 980. This benchmark has nothing to do with gaming and is aimed at professional 3D graphics artists.

Benchmark coverage: 4%

GTX 660 33
+725%

GT 620 4

GTX 660 outperforms GT 620 by 725% in Octane Render OctaneBench.

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
+1075%

4−5

−1075%

Pros & cons summary

Performance score	10.35	0.98
Recency	6 September 2012	15 May 2012
Cost	$229	$39.99
Maximum RAM amount	2 GB	1 GB
Chip lithography	28 nm	40 nm
Power consumption (TDP)	140 Watt	49 Watt