ATI Radeon HD 5870 Eyefinity 6 vs NVIDIA GeForce GTX 660 Ti

General info

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

Place in performance ranking	383	not rated
Place by popularity	not in top-100	not in top-100
Value for money	2.59	no data
Architecture	Kepler (2012−2018)	TeraScale 2 (2009−2015)
GPU code name	GK104	Cypress
Market segment	Desktop	Desktop
Release date	16 August 2012 (11 years old)	11 March 2010 (14 years old)
Launch price (MSRP)	$299	$479
Current price	$189 (0.6x MSRP)	no data

Technical specs

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	1344	1600
CUDA cores	1344	no data
Core clock speed	915 MHz	850 MHz
Boost clock speed	980 MHz	no data
Number of transistors	3,540 million	2,154 million
Manufacturing process technology	28 nm	40 nm
Power consumption (TDP)	150 Watt	228 Watt
Texture fill rate	102.5 billion/sec	68.00
Floating-point performance	2,459.5 gflops	2,720.0 gflops

Size and 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 3.0 x16	PCIe 2.0 x16
Length	9.5" (24.1 cm)	279 mm
Height	4.376" (11.1 cm)	no data
Width	2-slot	2-slot
Supplementary power connectors	Two 6-pin	1x 6-pin + 1x 8-pin
SLI options	+	no data

Memory

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	2 GB
Memory bus width	192-bit GDDR5	256 Bit
Memory clock speed	6.0 GB/s	4800 MHz
Memory bandwidth	144.2 GB/s	153.6 GB/s
Shared memory	-	no data

Video outputs and ports

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	One Dual Link DVI-I, One Dual Link DVI-D, One HDMI, One DisplayPort	6x mini-DisplayPort
Multi monitor support	4 displays	no data
HDMI	+	no data
HDCP	+	no data
Maximum VGA resolution	2048x1536	no data
Audio input for HDMI	Internal	no data

Technologies

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

3D Blu-Ray	+	no data
3D Gaming	+	no data
3D Vision	+	no data

API support

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

DirectX	12 (11_0)	11.2 (11_0)
Shader Model	5.1	5.0
OpenGL	4.3	4.4
OpenCL	1.2	1.2
Vulkan	1.1.126	N/A
CUDA	+	no data

Advantages and disadvantages

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Recency	16 August 2012	11 March 2010
Cost	$299	$479
Chip lithography	28 nm	40 nm
Power consumption (TDP)	150 Watt	228 Watt

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