GMA 900 vs GeForce 845M

Primary details

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

Place in the ranking	781	not rated
Place by popularity	not in top-100	not in top-100
Power efficiency	8.44	no data
Architecture	Maxwell (2014−2017)	Generation 3.0 (2005)
GPU code name	GM108	Alviso
Market segment	Laptop	Laptop
Release date	26 August 2015 (10 years ago)	2005 (21 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	384	no data
Core clock speed	1071 MHz	333 MHz
Boost clock speed	1176 MHz	no data
Number of transistors	1,870 million	no data
Manufacturing process technology	28 nm	130 nm
Power consumption (TDP)	45 Watt	no data
Texture fill rate	37.63	1.332
Floating-point processing power	0.9032 TFLOPS	no data
ROPs	16	4
TMUs	32	4
L1 Cache	192 KB	no data
L2 Cache	1024 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	medium sized	no data
Interface	PCIe 3.0 x8	FSB

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	2 GB	System Shared
Memory bus width	64 Bit	System Shared
Memory clock speed	1253 MHz	System Shared
Memory bandwidth	40.1 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

Portable Device Dependent

Supported technologies

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

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	4.6	1.4
OpenCL	1.2	N/A
Vulkan	1.1.126	N/A
CUDA	+	-

Pros & cons summary

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Chip lithography

28 nm

130 nm