G3D Mark is a standard benchmark that measures graphics performance in real-world gaming scenarios. It simplifies comparing cards from different brands, where higher scores directly correlate with better fps and smoother gaming experiences.

Overview

The GeForce GTX 660 is manufactured by NVIDIA. It was released in September 6 2012. It features the Kepler architecture. The core clock ranges from 980 MHz to 1033 MHz. It has 960 shading units. The thermal design power (TDP) is 140W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 4,040 points. Launch price was $229.

Value Upgrade Path

This is the official ChipVERSUS Value Rating, comparing raw performance (G3D Mark) per dollar. Components placed above yours deliver better value for money.

MSRP is the manufacturer's suggested retail price.•
Avg price is the current average price collected from markets across the web.

Performance Per Dollar

Based on actual market prices and performance benchmarks.

FPS Benchmarks

Predicted performance for GeForce GTX 660 across popular games. Tested paired with Ryzen 7 7800X3D to isolate GPU performance.

Technical Analysis

Detailed breakdown of GeForce GTX 660 specifications and capabilities.

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Graphics Performance

The GeForce GTX 660 scores 4,040 in the G3D Mark benchmark (the standard measure of rasterization GPU performance), placing it in the Budget tier as a Legacy generation graphics card. It is built on the Kepler (2012−2018) architecture (codename: GK106), manufactured on a 28 nm process— smaller process nodes improve power efficiency and transistor density. It packs 960 shader units (the primary compute units for rendering pixels), 80 TMUs (texture mapping units), and 24 ROPs (render output units that handle final pixel output). Raw FP32 compute power: 1.981 TFLOPS — this measures the theoretical peak floating-point performance. Boost clock reaches 1033 MHz from a base of 980 MHz.

Specification	GeForce GTX 660
G3D MarkPassMark 3D graphics benchmark score	4,040
ArchitectureGPU microarchitecture generation	Kepler (2012−2018)
CodenameInternal GPU die codename	GK106
Manufacturing ProcessFabrication node — smaller = more efficient	28 nm
Shader UnitsCore compute units for rendering/compute	960
TMUsTexture Mapping Units — handle texture sampling	80
ROPsRender Output Units — final pixel/color blending	24
Boost ClockMaximum GPU frequency under load	1033 MHz
Base ClockGuaranteed minimum GPU frequency	980 MHz
Compute (FP32)Peak single-precision floating-point performance	1.981 TFLOPS
Texture Fill RateTextures processed per second	82.56 GTexel/s
PCIe InterfaceCPU↔GPU data link generation	PCIe 3.0 x16
Transistor Count	2,540 million
Performance RankPosition in global GPU performance ranking	#490

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Video Memory (VRAM)

The GeForce GTX 660 is equipped with 3 GB of GDDR5 video memory connected via a 192-bit memory bus, delivering 144.2 GB/s of bandwidth. Memory operates at 8 Gbps effective speed.

Specification	GeForce GTX 660
VRAM SizeVideo memory capacity — more = better for high-res textures	3 GB
VRAM TypeMemory technology generation	GDDR5
Memory BusWidth of data path — wider = more bandwidth	192-bit
Memory SpeedEffective memory data rate	8 Gbps
BandwidthMaximum data throughput between GPU and VRAM	144.2 GB/s
L1 Cache	80 kB
L2 Cache	384 kB

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Advanced Features & APIs

Graphics API support: DirectX 12— latest API versions enable the most advanced rendering features like ray tracing and mesh shaders.

Specification	GeForce GTX 660
NVIDIA Reflex	❌ Not Supported
DLSS Frame Generation	❌ Not Supported
DLSS Super Resolution	❌ Not Supported
DirectXMicrosoft graphics API version	12
Compute APIGPGPU framework (CUDA/ROCm/OpenCL)	CUDA 3.0
Multi-GPUSLI/CrossFire/NVLink support	SLI

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Display & Media

Display outputs: DVIx 0, HDMIx 1, DisplayPortx 2 — supports up to 4 simultaneous displays. Hardware encoder: NVENC 1st Gen, decoder: NVDEC 1st Gen— dedicated hardware for video encoding/decoding accelerates streaming, recording, and video playback. Supported codecs: H.264.

Specification	GeForce GTX 660
0 PortsNumber of 0 display connectors	DVIx
1 PortsNumber of 1 display connectors	HDMIx
2 PortsNumber of 2 display connectors	DisplayPortx
Max DisplaysMaximum simultaneously connected monitors	4
Hardware EncoderVideo encoding engine version	NVENC 1st Gen
Hardware DecoderVideo decoding engine version	NVDEC 1st Gen
CodecsSupported video compression formats	H.264

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Power & Dimensions

The GeForce GTX 660 draws 140 Watt under load (TDP) — a 450W PSU minimum is recommended. Power connector: 1x 6-pin. Physical size: 241mm long, occupying 2 expansion slots— verify your case has clearance before purchasing.

Specification	GeForce GTX 660
TDPPower consumption under load	140 Watt
Recommended PSUMinimum power supply wattage	450W
Power ConnectorRequired PCIe power cable type	1x 6-pin
Card LengthGPU card length — check case clearance	241mm
Slot WidthExpansion slots occupied	2-slot

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Value Analysis

At an average price of $15 (MSRP: $229), the GeForce GTX 660 delivers 269 G3D Mark points per dollar. Overall performance ranking position: #490 among all indexed GPUs.

Specification	GeForce GTX 660
MSRPManufacturer's Suggested Retail Price	$229
Avg Price (30d)Average market price over the last 30 days	$15
Performance RankPosition in global GPU performance ranking	#490
Release Date	September 6 2012
Release Year	2012