GEFORCE

NVIDIA GeForce GTX 660 Rev. 2

NVIDIA graphics card specifications and benchmark scores

2 GB
VRAM
1032
MHz Boost
140W
TDP
192
Bus Width

NVIDIA GeForce GTX 660 Rev. 2 Specifications

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GeForce GTX 660 Rev. 2 GPU Core

Shader units and compute resources

The NVIDIA GeForce GTX 660 Rev. 2 GPU core specifications define its raw processing power for graphics and compute workloads. Shading units (also called CUDA cores, stream processors, or execution units depending on manufacturer) handle the parallel calculations required for rendering. TMUs (Texture Mapping Units) process texture data, while ROPs (Render Output Units) handle final pixel output. Higher shader counts generally translate to better GPU benchmark performance, especially in demanding games and 3D applications.

Shading Units
960
Shaders
960
TMUs
80
ROPs
24
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GTX 660 Rev. 2 Clock Speeds

GPU and memory frequencies

Clock speeds directly impact the GeForce GTX 660 Rev. 2's performance in GPU benchmarks and real-world gaming. The base clock represents the minimum guaranteed frequency, while the boost clock indicates peak performance under optimal thermal conditions. Memory clock speed affects texture loading and frame buffer operations. The GeForce GTX 660 Rev. 2 by NVIDIA dynamically adjusts frequencies based on workload, temperature, and power limits to maximize performance while maintaining stability.

Base Clock
980 MHz
Base Clock
980 MHz
Boost Clock
1032 MHz
Boost Clock
1,032 MHz
Memory Clock
1502 MHz 6 Gbps effective
GDDR GDDR 6X 6X

NVIDIA's GeForce GTX 660 Rev. 2 Memory

VRAM capacity and bandwidth

VRAM (Video RAM) is dedicated memory for storing textures, frame buffers, and shader data. The GeForce GTX 660 Rev. 2's memory capacity determines how well it handles high-resolution textures and multiple displays. Memory bandwidth, measured in GB/s, affects how quickly data moves between the GPU and VRAM. Higher bandwidth improves performance in memory-intensive scenarios like 4K gaming. The memory bus width and type (GDDR6, GDDR6X, HBM) significantly influence overall GPU benchmark scores.

Memory Size
2 GB
VRAM
2,048 MB
Memory Type
GDDR5
VRAM Type
GDDR5
Memory Bus
192 bit
Bus Width
192-bit
Bandwidth
144.2 GB/s
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GeForce GTX 660 Rev. 2 by NVIDIA Cache

On-chip cache hierarchy

On-chip cache provides ultra-fast data access for the GTX 660 Rev. 2, reducing the need to fetch data from slower VRAM. L1 and L2 caches store frequently accessed data close to the compute units. AMD's Infinity Cache (L3) dramatically increases effective bandwidth, improving GPU benchmark performance without requiring wider memory buses. Larger cache sizes help maintain high frame rates in memory-bound scenarios and reduce power consumption by minimizing VRAM accesses.

L1 Cache
16 KB (per SMX)
L2 Cache
384 KB
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GTX 660 Rev. 2 Theoretical Performance

Compute and fill rates

Theoretical performance metrics provide a baseline for comparing the NVIDIA GeForce GTX 660 Rev. 2 against other graphics cards. FP32 (single-precision) performance, measured in TFLOPS, indicates compute capability for gaming and general GPU workloads. FP64 (double-precision) matters for scientific computing. Pixel and texture fill rates determine how quickly the GPU can render complex scenes. While real-world GPU benchmark results depend on many factors, these specifications help predict relative performance levels.

FP32 (Float)
1.981 TFLOPS
FP64 (Double)
82.56 GFLOPS (1:24)
Pixel Rate
20.64 GPixel/s
Texture Rate
82.56 GTexel/s
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Kepler Architecture & Process

Manufacturing and design details

The NVIDIA GeForce GTX 660 Rev. 2 is built on NVIDIA's Kepler architecture, which defines how the GPU processes graphics and compute workloads. The manufacturing process node affects power efficiency, thermal characteristics, and maximum clock speeds. Smaller process nodes pack more transistors into the same die area, enabling higher performance per watt. Understanding the architecture helps predict how the GTX 660 Rev. 2 will perform in GPU benchmarks compared to previous generations.

Architecture
Kepler
GPU Name
GK104
Process Node
28 nm
Foundry
TSMC
Transistors
3,540 million
Die Size
294 mm²
Density
12.0M / mm²
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NVIDIA's GeForce GTX 660 Rev. 2 Power & Thermal

TDP and power requirements

Power specifications for the NVIDIA GeForce GTX 660 Rev. 2 determine PSU requirements and thermal management needs. TDP (Thermal Design Power) indicates the heat output under typical loads, guiding cooler selection. Power connector requirements ensure adequate power delivery for stable operation during demanding GPU benchmarks. The suggested PSU wattage accounts for the entire system, not just the graphics card. Efficient power delivery enables the GeForce GTX 660 Rev. 2 to maintain boost clocks without throttling.

TDP
140 W
TDP
140W
Power Connectors
1x 6-pin
Suggested PSU
300 W
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GeForce GTX 660 Rev. 2 by NVIDIA Physical & Connectivity

Dimensions and outputs

Physical dimensions of the NVIDIA GeForce GTX 660 Rev. 2 are critical for case compatibility. Card length, height, and slot width determine whether it fits in your chassis. The PCIe interface version affects bandwidth for communication with the CPU. Display outputs define monitor connectivity options, with modern cards supporting multiple high-resolution displays simultaneously. Verify these specifications against your case and motherboard before purchasing to ensure a proper fit.

Slot Width
Dual-slot
Length
241 mm 9.5 inches
Bus Interface
PCIe 3.0 x16
Display Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Display Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
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NVIDIA API Support

Graphics and compute APIs

API support determines which games and applications can fully utilize the NVIDIA GeForce GTX 660 Rev. 2. DirectX 12 Ultimate enables advanced features like ray tracing and variable rate shading. Vulkan provides cross-platform graphics capabilities with low-level hardware access. OpenGL remains important for professional applications and older games. CUDA (NVIDIA) and OpenCL enable GPU compute for video editing, 3D rendering, and scientific applications. Higher API versions unlock newer graphical features in GPU benchmarks and games.

DirectX
12 (11_0)
DirectX
12 (11_0)
OpenGL
4.6
OpenGL
4.6
Vulkan
1.2.175
Vulkan
1.2.175
OpenCL
3.0
CUDA
3.0
Shader Model
6.5 (5.1)
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GeForce GTX 660 Rev. 2 Product Information

Release and pricing details

The NVIDIA GeForce GTX 660 Rev. 2 is manufactured by NVIDIA as part of their graphics card lineup. Release date and launch pricing provide context for comparing GPU benchmark results with competing products from the same era. Understanding the product lifecycle helps evaluate whether the GeForce GTX 660 Rev. 2 by NVIDIA represents good value at current market prices. Predecessor and successor information aids in tracking generational improvements and planning future upgrades.

Manufacturer
NVIDIA
Release Date
Sep 2014
Production
End-of-life
Predecessor
GeForce 500
Successor
GeForce 700

GeForce GTX 660 Rev. 2 Benchmark Scores

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No benchmark data available for this GPU.

About NVIDIA GeForce GTX 660 Rev. 2

The NVIDIA GeForce GTX 660 Rev. 2 stands out as a solid choice for gamers seeking a balance between performance and affordability. Built on the Kepler architecture with a 28 nm process, this card delivers respectable gaming performance that can handle a variety of modern titles at 1080p with decent settings. Its 2 GB of GDDR5 VRAM provides enough bandwidth and memory to support most current games without significant bottlenecks, although demanding titles may require some adjustments. The GTX 660 excels in scenarios where power efficiency is crucial, with a TDP of just 140W, making it an attractive option for systems with limited power supplies. With a base clock of 980 MHz and a boost up to 1032 MHz, it offers some headroom for overclocking enthusiasts who want to squeeze extra performance out of their setup. In terms of gaming realism and visual fidelity, the GTX 660 manages to incorporate modern rendering features that improve image quality and performance. While specific benchmark data isn’t available here, this graphics card generally performs well in titles that leverage DirectX 11 and other advanced rendering techniques. Gamers aiming to experience smoother gameplay will appreciate its ability to handle intensive scenes with relative ease, especially considering its age. The card’s PCIe 3.0 x16 interface ensures quick data transfer rates, minimizing latency and bottlenecks during demanding gaming sessions. Its architecture and process size contribute to its overall efficiency, allowing it to maintain good thermal performance without excessive noise or heat output. The GTX 660's design leans more toward gaming scenarios where power consumption and affordability are vital considerations. Its moderate power requirements make it suitable for gaming rigs that don’t have a robust power supply, yet still deliver solid frame rates in most modern titles. Although it's not a high-end, future-proof graphics card, it remains capable of providing a satisfactory gaming experience in many popular titles from the last generation. Gamers on a budget or those upgrading an older system might find the GTX 660 to be an enticing option, offering decent performance without the need for a complete system overhaul. Its overall architecture ensures compatibility with a range of systems, making it a reliable choice for casual gamers and more dedicated enthusiasts alike. Looking at the big picture, the GTX 660 can still carve out its place in the gaming PC landscape despite its age. Its decent VRAM capacity and robust architecture mean it’s suitable for gaming scenarios where moderate settings are acceptable, and it can serve as a stepping stone into more advanced GPU configurations down the line. The card’s design prioritizes efficiency and balanced performance, making it ideal for gamers who want to enjoy modern titles without breaking the bank. While it’s not optimized for cutting-edge virtual reality experiences, the GTX 660 can still handle many VR-ready titles at lower settings, depending on the system configuration. Enthusiasts who appreciate older hardware with a proven track record will find this card remains a reliable performer for everyday gaming needs, offering good value at an accessible price point.

The AMD Equivalent of GeForce GTX 660 Rev. 2

Looking for a similar graphics card from AMD? The AMD Radeon RX 480 offers comparable performance and features in the AMD lineup.

AMD Radeon RX 480

AMD • 8 GB VRAM

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