Radeon HD 6490 vs GeForce GTX 870M

Primary details

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

Place in the ranking	544	not rated
Place by popularity	not in top-100	not in top-100
Power efficiency	6.53	no data
Architecture	Kepler (2012−2018)	TeraScale 2 (2009−2015)
GPU code name	GK104	Redwood
Market segment	Laptop	Desktop
Release date	12 March 2014 (11 years ago)	4 July 2011 (14 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	1344	320
Core clock speed	941 MHz	550 MHz
Boost clock speed	967 MHz	no data
Number of transistors	3,540 million	627 million
Manufacturing process technology	28 nm	40 nm
Power consumption (TDP)	100 Watt	39 Watt
Texture fill rate	108.3	8.800
Floating-point processing power	2.599 TFLOPS	0.352 TFLOPS
ROPs	24	8
TMUs	112	16
L1 Cache	112 KB	32 KB
L2 Cache	384 KB	256 KB

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 2.0 x16
Length	no data	165 mm
Width	no data	1-slot
Supplementary power connectors	None	None
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	DDR2
Maximum RAM amount	3 GB	1 GB
Standard memory configuration	GDDR5	no data
Memory bus width	192 Bit	128 Bit
Memory clock speed	Up to 2500 MHz	500 MHz
Memory bandwidth	120.0 GB/s	16 GB/s
Shared memory	-	no data

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	1x DVI, 1x HDMI, 1x VGA
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)	11.2 (11_0)
Shader Model	5.1	5.0
OpenGL	4.5	4.4
OpenCL	1.1	1.2
Vulkan	1.1.126	N/A
CUDA	+	-

Pros & cons summary

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Recency	12 March 2014	4 July 2011
Maximum RAM amount	3 GB	1 GB
Chip lithography	28 nm	40 nm
Power consumption (TDP)	100 Watt	39 Watt

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