Radeon HD 6990M Rebrand vs GeForce GTX 480M

Primary details

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

Place in the ranking	749	not rated
Place by popularity	not in top-100	not in top-100
Power efficiency	3.04	no data
Architecture	Fermi (2010−2014)	TeraScale 2 (2009−2015)
GPU code name	GF100	Broadway
Market segment	Laptop	Laptop
Release date	25 May 2010 (15 years ago)	12 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	352	800
Core clock speed	425 MHz	800 MHz
Number of transistors	3,100 million	1,040 million
Manufacturing process technology	40 nm	40 nm
Power consumption (TDP)	100 Watt	100 Watt
Texture fill rate	18.70	32.00
Floating-point processing power	0.5984 TFLOPS	1.28 TFLOPS
ROPs	32	16
TMUs	44	40
L1 Cache	704 KB	112 KB
L2 Cache	512 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-E 2.0	no data
Interface	MXM-B (3.0)	MXM-B (3.0)
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	GDDR5
Maximum RAM amount	2 GB	1 GB
Memory bus width	256 Bit	128 Bit
Memory clock speed	1200 MHz	1100 MHz
Memory bandwidth	76.8 GB/s	70.4 GB/s
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
Maximum VGA resolution	2048x1536	no data

API and SDK support

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

DirectX	12 API	11.2 (11_0)
Shader Model	5.1	5.0
OpenGL	4.5	4.4
OpenCL	1.1	1.2
Vulkan	N/A	N/A
CUDA	+	-

Pros & cons summary

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Recency	25 May 2010	12 July 2011
Maximum RAM amount	2 GB	1 GB