HD Graphics 400 vs GeForce 800M

Place in the ranking	1066	1081
Place by popularity	not in top-100	not in top-100
Power efficiency	1.79	4.29
Architecture	Fermi 2.0 (2010−2014)	Generation 8.0 (2014−2015)
GPU code name	GF117	Braswell GT1
Market segment	Desktop	Desktop
Release date	17 March 2014 (10 years ago)	1 April 2015 (9 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. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores	48	96
Core clock speed	738 MHz	320 MHz
Boost clock speed	no data	640 MHz
Number of transistors	585 million	189 million
Manufacturing process technology	28 nm	14 nm
Power consumption (TDP)	15 Watt	6 Watt
Texture fill rate	5.904	7.680
Floating-point processing power	0.1417 TFLOPS	0.1229 TFLOPS
ROPs	8	2
TMUs	8	12

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	no data
Interface	PCIe 2.0 x16	PCIe 3.0 x1
Width	no data	IGP

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	DDR3	DDR3L
Maximum RAM amount	1 GB	8 GB
Memory bus width	64 Bit	System Shared
Memory clock speed	900 MHz	System Shared
Memory bandwidth	14.4 GB/s	no data

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

No outputs

Supported technologies

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

GPU Boost	2.0	no data
Optimus	+	-
GameWorks	+	-

API compatibility

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

DirectX	12 (11_0)	12 (11_1)
Shader Model	5.1	5.1
OpenGL	4.5	4.3
OpenCL	1.1	2.0
Vulkan	N/A	1.1.80
CUDA	2.1	-

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	1.18	1.13
Recency	17 March 2014	1 April 2015
Maximum RAM amount	1 GB	8 GB
Chip lithography	28 nm	14 nm
Power consumption (TDP)	15 Watt	6 Watt

GeForce 800M has a 4.4% higher aggregate performance score.

HD Graphics 400, on the other hand, has an age advantage of 1 year, a 700% higher maximum VRAM amount, a 100% more advanced lithography process, and 150% lower power consumption.

Given the minimal performance differences, no clear winner can be declared between GeForce 800M and HD Graphics 400.

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