GeForce RTX 5080 vs GTX 660

Place in the ranking	443	3
Place by popularity	77	not in top-100
Cost-effectiveness evaluation	3.42	41.02
Power efficiency	5.14	18.23
Architecture	Kepler (2012−2018)	Blackwell 2.0 (2025)
GPU code name	GK106	GB203
Market segment	Desktop	Desktop
Release date	6 September 2012 (12 years ago)	30 January 2025 (recently)
Launch price (MSRP)	$229	$999

Cost-effectiveness evaluation

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

RTX 5080 has 1099% better value for money than GTX 660.

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	10752
Core clock speed	980 MHz	2295 MHz
Boost clock speed	1033 MHz	2617 MHz
Number of transistors	2,540 million	45,600 million
Manufacturing process technology	28 nm	4 nm
Power consumption (TDP)	140 Watt	360 Watt
Texture fill rate	82.56	879.3
Floating-point processing power	1.981 TFLOPS	56.28 TFLOPS
ROPs	24	128
TMUs	80	336
Tensor Cores	no data	336
Ray Tracing Cores	no data	84

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	16 GB
Memory bus width	192-bit GDDR5	256 Bit
Memory clock speed	6.0 GB/s	1875 MHz
Memory bandwidth	144.2 GB/s	960.0 GB/s

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	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	+	10.1

Synthetic benchmark performance

Non-gaming benchmark results comparison. The combined score is measured on a 0-100 point scale.

Combined synthetic benchmark score

This is our combined benchmark score. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

GTX 660 10.34

RTX 5080 94.26
+812%

Passmark

This is the most ubiquitous GPU benchmark. It gives the graphics card a thorough evaluation under various types of load, providing four separate benchmarks for Direct3D versions 9, 10, 11 and 12 (the last being done in 4K resolution if possible), and few more tests engaging DirectCompute capabilities.

GTX 660 4013

RTX 5080 36570
+811%

Gaming performance

Let's see how good the compared graphics cards are for gaming. Particular gaming benchmark results are measured in FPS.

Average FPS across all PC games

Here are the average frames per second in a large set of popular games across different resolutions:

Full HD	47 −311%	193 +311%
1440p	16−18 −863%	154 +863%
4K	10−12 −920%	102 +920%

Cost per frame, $

1080p	4.87 +6.2%	5.18 −6.2%
1440p	14.31 −121%	6.49 +121%
4K	22.90 −134%	9.79 +134%

GTX 660 has 6% lower cost per frame in 1080p
RTX 5080 has 121% lower cost per frame in 1440p
RTX 5080 has 134% lower cost per frame in 4K

FPS performance in popular games

Full HD
Low Preset

Counter-Strike 2

210−220

+0%

210−220

+0%

Full HD
Medium Preset

Battlefield 5	110−120 +0%	110−120 +0%
Counter-Strike 2	210−220 +0%	210−220 +0%
Forza Horizon 5	280−290 +0%	280−290 +0%
Metro Exodus	180−190 +0%	180−190 +0%
Red Dead Redemption 2	150−160 +0%	150−160 +0%
Valorant	650−700 +0%	650−700 +0%

Full HD
High Preset

Battlefield 5	110−120 +0%	110−120 +0%
Counter-Strike 2	210−220 +0%	210−220 +0%
Dota 2	170−180 +0%	170−180 +0%
Far Cry 5	157 +0%	157 +0%
Fortnite	300−350 +0%	300−350 +0%
Forza Horizon 5	280−290 +0%	280−290 +0%
Metro Exodus	180−190 +0%	180−190 +0%
PLAYERUNKNOWN'S BATTLEGROUNDS	210−220 +0%	210−220 +0%
Red Dead Redemption 2	150−160 +0%	150−160 +0%
The Witcher 3: Wild Hunt	170−180 +0%	170−180 +0%
Valorant	650−700 +0%	650−700 +0%
World of Tanks	270−280 +0%	270−280 +0%

Full HD
Ultra Preset

Battlefield 5	110−120 +0%	110−120 +0%
Counter-Strike 2	222 +0%	222 +0%
Far Cry 5	180−190 +0%	180−190 +0%
Forza Horizon 5	280−290 +0%	280−290 +0%
PLAYERUNKNOWN'S BATTLEGROUNDS	210−220 +0%	210−220 +0%
Valorant	650−700 +0%	650−700 +0%

1440p
High Preset

Counter-Strike 2	140−150 +0%	140−150 +0%
Dota 2	160−170 +0%	160−170 +0%
Red Dead Redemption 2	90−95 +0%	90−95 +0%
World of Tanks	500−550 +0%	500−550 +0%

1440p
Ultra Preset

Battlefield 5	85−90 +0%	85−90 +0%
Far Cry 5	160−170 +0%	160−170 +0%
Forza Horizon 5	210−220 +0%	210−220 +0%
Metro Exodus	150−160 +0%	150−160 +0%
Valorant	500−550 +0%	500−550 +0%

4K
High Preset

Counter-Strike 2	109 +0%	109 +0%
Dota 2	180−190 +0%	180−190 +0%
Metro Exodus	120−130 +0%	120−130 +0%
PLAYERUNKNOWN'S BATTLEGROUNDS	200−210 +0%	200−210 +0%
Red Dead Redemption 2	60−65 +0%	60−65 +0%

4K
Ultra Preset

Battlefield 5	90−95 +0%	90−95 +0%
Counter-Strike 2	36 +0%	36 +0%
Far Cry 5	100−110 +0%	100−110 +0%
Fortnite	95−100 +0%	95−100 +0%
Forza Horizon 5	140−150 +0%	140−150 +0%
Valorant	300−350 +0%	300−350 +0%

This is how GTX 660 and RTX 5080 compete in popular games:

RTX 5080 is 311% faster in 1080p
RTX 5080 is 863% faster in 1440p
RTX 5080 is 920% faster in 4K

All in all, in popular games:

there's a draw in 45 tests (100%)

Pros & cons summary

Performance score	10.34	94.26
Recency	6 September 2012	30 January 2025
Maximum RAM amount	2 GB	16 GB
Chip lithography	28 nm	4 nm
Power consumption (TDP)	140 Watt	360 Watt

GTX 660 has 157.1% lower power consumption.

RTX 5080, on the other hand, has a 811.6% higher aggregate performance score, an age advantage of 12 years, a 700% higher maximum VRAM amount, and a 600% more advanced lithography process.

The GeForce RTX 5080 is our recommended choice as it beats the GeForce GTX 660 in performance tests.

Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.