Radeon 630 vs GeForce GTX 660 Rev. 2

Primary details

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

Place in performance ranking	not rated	701
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	0.50
Architecture	Kepler (2012−2018)	GCN 1.0 (2012−2020)
GPU code name	GK104	Lexa
Market segment	Desktop	Laptop
Release date	13 September 2014 (9 years ago)	12 August 2019 (4 years ago)
Current price	$489	$65

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

Detailed specifications

General performance parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. These parameters indirectly speak of performance, but for precise assessment you have to consider their benchmark and gaming test results. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores	960	512
Core clock speed	980 MHz	no data
Boost clock speed	1032 MHz	1219 MHz
Number of transistors	3,540 million	2,200 million
Manufacturing process technology	28 nm	14 nm
Power consumption (TDP)	140 Watt	50 Watt
Texture fill rate	82.56	38.98
Floating-point performance	1,981 gflops	no data

Form factor & compatibility

Information on GeForce GTX 660 Rev. 2 and Radeon 630 compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop video cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility). For notebook video cards it's notebook size, connection slot and bus, if the video card is inserted into a slot instead of being soldered to the notebook motherboard.

Interface	PCIe 3.0 x16	PCIe 3.0 x8
Length	241 mm	no data
Width	2-slot	no data
Supplementary power connectors	1x 6-pin	None

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	4 GB
Memory bus width	192 Bit	64 Bit
Memory clock speed	6008 MHz	6000 MHz
Memory bandwidth	144.2 GB/s	112.0 GB/s
Shared memory	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	2x DVI, 1x HDMI, 1x DisplayPort	1x DVI, 1x HDMI, 1x DisplayPort
HDMI	+	+

API compatibility

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

DirectX	12 (11_0)	12
Shader Model	5.1	no data
OpenGL	4.6	4.6
OpenCL	1.2	no data
Vulkan	1.1.126	+
CUDA	3.0	no data

Pros & cons summary

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Recency	13 September 2014	12 August 2019
Maximum RAM amount	2 GB	4 GB
Chip lithography	28 nm	14 nm
Power consumption (TDP)	140 Watt	50 Watt

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