GMA 3100 vs GeForce GTX 870M

Primary details

GPU architecture, market segment, value for money and other general parameters compared.

Place in the ranking	554	not rated
Place by popularity	not in top-100	not in top-100
Power efficiency	6.60	no data
Architecture	Kepler (2012−2018)	Generation 4.0 (2006−2007)
GPU code name	GK104	Bearlake
Market segment	Laptop	Laptop
Release date	12 March 2014 (12 years ago)	9 May 2007 (19 years ago)

Detailed specifications

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

Pipelines / CUDA cores	1344	no data
Core clock speed	941 MHz	400 MHz
Boost clock speed	967 MHz	no data
Number of transistors	3,540 million	no data
Manufacturing process technology	28 nm	90 nm
Power consumption (TDP)	100 Watt	13 Watt
Texture fill rate	108.3	1.600
Floating-point processing power	2.599 TFLOPS	no data
ROPs	24	4
TMUs	112	4
L1 Cache	112 KB	no data
L2 Cache	384 KB	no data

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).

Laptop size	large	no data
Bus support	PCI Express 2.0, PCI Express 3.0	no data
Interface	MXM-B (3.0)	PCIe 1.0 x16
Supplementary power connectors	None	no data
SLI options	+	-

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	System Shared
Maximum RAM amount	3 GB	System Shared
Standard memory configuration	GDDR5	no data
Memory bus width	192 Bit	System Shared
Memory clock speed	Up to 2500 MHz	System Shared
Memory bandwidth	120.0 GB/s	no data
Shared memory	-	+

Connectivity and outputs

This section shows the types and number of video connectors on each GPU. The data applies specifically to desktop reference models (for example, NVIDIA’s Founders Edition). OEM partners often modify both the number and types of ports. On notebook GPUs, video‐output options are determined by the laptop’s design rather than the graphics chip itself.

Display Connectors	No outputs	No outputs
eDP 1.2 signal support	Up to 3840x2160	no data
LVDS signal support	Up to 1920x1200	no data
VGA аnalog display support	Up to 2048x1536	no data
DisplayPort Multimode (DP++) support	Up to 3840x2160	no data
HDMI	+	-
HDCP content protection	+	-
7.1 channel HD audio on HDMI	+	-
TrueHD and DTS-HD audio bitstreaming	+	-

Supported technologies

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

H.264, VC1, MPEG2 1080p video decoder	+	-
Optimus	+	-

API and SDK support

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

DirectX	12 (11_0)	9.0c
Shader Model	5.1	3.0
OpenGL	4.5	2.0
OpenCL	1.1	N/A
Vulkan	1.1.126	N/A
CUDA	+	-

Pros & cons summary

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Recency	12 March 2014	9 May 2007
Chip lithography	28 nm	90 nm
Power consumption (TDP)	100 Watt	13 Watt