GeForce RTX 5090 DD vs GTX 660

Primary details

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

Place in the ranking	475	not rated
Place by popularity	93	not in top-100
Cost-effectiveness evaluation	2.98	no data
Power efficiency	5.22	no data
Architecture	Kepler (2012−2018)	Blackwell 2.0 (2025)
GPU code name	GK106	GB202
Market segment	Desktop	Desktop
Release date	6 September 2012 (12 years ago)	no data
Launch price (MSRP)	$229	no data

Cost-effectiveness evaluation

The higher the performance-to-price ratio, the better. We use the manufacturer's recommended prices for comparison.

Performance to price scatter graph

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	960	21760
Core clock speed	980 MHz	2017 MHz
Boost clock speed	1033 MHz	2407 MHz
Number of transistors	2,540 million	92,200 million
Manufacturing process technology	28 nm	5 nm
Power consumption (TDP)	140 Watt	575 Watt
Texture fill rate	82.56	1,636.8
Floating-point processing power	1.981 TFLOPS	104.8 TFLOPS
ROPs	24	176
TMUs	80	680
Tensor Cores	no data	680
Ray Tracing Cores	no data	170

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).

Bus support	PCI Express 3.0	no data
Interface	PCIe 3.0 x16	PCIe 5.0 x16
Length	241 mm	304 mm
Height	4.376" (11.1 cm)	no data
Width	2-slot	2-slot
Supplementary power connectors	1x 6-pin	1x 16-pin
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	GDDR7
Maximum RAM amount	2 GB	24 GB
Memory bus width	192-bit GDDR5	384 Bit
Memory clock speed	6.0 GB/s	1750 MHz
Memory bandwidth	144.2 GB/s	1.34 TB/s
Resizable BAR	-	+

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	One Dual Link DVI-I, One Dual Link DVI-D, One HDMI, One DisplayPort	1x HDMI 2.1b, 3x DisplayPort 2.1b
Multi monitor support	4 displays	no data
HDMI	+	+
HDCP	+	-
Maximum VGA resolution	2048x1536	no data
Audio input for HDMI	Internal	no data

Supported technologies

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

3D Blu-Ray	+	-
3D Gaming	+	-
3D Vision	+	-

API and SDK compatibility

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

DirectX	12 (11_0)	12 Ultimate (12_2)
Shader Model	5.1	6.8
OpenGL	4.3	4.6
OpenCL	1.2	3.0
Vulkan	1.1.126	1.4
CUDA	+	12.0
DLSS	-	+

Pros & cons summary

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Maximum RAM amount	2 GB	24 GB
Chip lithography	28 nm	5 nm
Power consumption (TDP)	140 Watt	575 Watt

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