ATI Mobility Radeon HD 4850 X2 vs GeForce GT 630 OEM

Primary details

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

Place in the ranking	993	not rated
Place by popularity	not in top-100	not in top-100
Power efficiency	2.46	no data
Architecture	Kepler (2012−2018)	TeraScale (2005−2013)
GPU code name	GK107	M98
Market segment	Desktop	Laptop
Release date	24 April 2012 (13 years ago)	9 January 2009 (16 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	192	800 ×2
Core clock speed	875 MHz	500 MHz
Number of transistors	1,270 million	956 million
Manufacturing process technology	28 nm	55 nm
Power consumption (TDP)	50 Watt	no data
Texture fill rate	14.00	20.00 ×2
Floating-point processing power	0.336 TFLOPS	0.8 TFLOPS ×2
ROPs	16	16 ×2
TMUs	16	40 ×2
L1 Cache	16 KB	160 KB
L2 Cache	256 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).

Interface	PCIe 3.0 x16	PCIe 2.0 x16
Length	145 mm	no data
Width	1-slot	no data
Supplementary power connectors	None	no data

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	GDDR5
Maximum RAM amount	1 GB	1 GB ×2
Memory bus width	128 Bit	256 Bit ×2
Memory clock speed	891 MHz	700 MHz
Memory bandwidth	28.51 GB/s	89.6 GB/s ×2

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	1x DVI, 1x HDMI, 1x VGA	No outputs
HDMI	+	-

API and SDK support

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

DirectX	12 (11_0)	10.1 (10_1)
Shader Model	5.1	4.1
OpenGL	4.6	3.3
OpenCL	1.2	1.1
Vulkan	1.1.126	N/A
CUDA	3.0	-

Pros & cons summary

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Recency	24 April 2012	9 January 2009
Chip lithography	28 nm	55 nm

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