GeForce GT 755M Mac Edition vs Quadro K620

Place in the ranking	593	859
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	2.37	no data
Power efficiency	8.95	3.01
Architecture	Maxwell (2014−2017)	Kepler (2012−2018)
GPU code name	GM107	GK107
Market segment	Workstation	Laptop
Release date	22 July 2014 (10 years ago)	8 November 2013 (11 years ago)
Launch price (MSRP)	$189.89	no data

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

no data

Detailed specifications

General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores	384	384
Core clock speed	1058 MHz	1085 MHz
Boost clock speed	1124 MHz	no data
Number of transistors	1,870 million	1,270 million
Manufacturing process technology	28 nm	28 nm
Power consumption (TDP)	41 Watt	50 Watt
Texture fill rate	26.98	34.72
Floating-point processing power	0.8632 TFLOPS	0.8333 TFLOPS
ROPs	16	16
TMUs	24	32

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).

Interface	PCIe 2.0 x16	PCIe 3.0 x16
Length	160 mm	no data
Width	1" (2.5 cm)	no data
Supplementary power connectors	None	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	128 Bit	GDDR5
Maximum RAM amount	2 GB	1 GB
Memory bus width	128 Bit	128 Bit
Memory clock speed	900 MHz	1250 MHz
Memory bandwidth	Up to 29 GB/s	80 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	1x DVI, 1x DisplayPort	No outputs
Number of simultaneous displays	4	no data

Supported technologies

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

3D Vision Pro	+	no data
Mosaic	+	no data
nView Desktop Management	+	no data

API compatibility

List of supported 3D and general-purpose computing APIs, including their specific versions.

DirectX	12	12 (11_0)
Shader Model	5.1	5.1
OpenGL	4.5	4.6
OpenCL	1.2	1.2
Vulkan	1.1.126	1.1.126
CUDA	5.0	3.0

Gaming performance

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

Pros & cons summary

Performance score	5.78	2.16
Recency	22 July 2014	8 November 2013
Maximum RAM amount	2 GB	1 GB
Power consumption (TDP)	41 Watt	50 Watt

Quadro K620 has a 167.6% higher aggregate performance score, an age advantage of 8 months, a 100% higher maximum VRAM amount, and 22% lower power consumption.

The Quadro K620 is our recommended choice as it beats the GeForce GT 755M Mac Edition in performance tests.

Be aware that Quadro K620 is a workstation card while GeForce GT 755M Mac Edition is a notebook one.

Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.