ATI Radeon HD 3650 AGP vs GeForce GTX 660 OEM

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Primary details

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

Place in the ranking734not rated
Place by popularitynot in top-100not in top-100
Power efficiency1.79no data
ArchitectureKepler (2012−2018)TeraScale (2005−2013)
GPU code nameGK104RV635
Market segmentDesktopDesktop
Release date22 August 2012 (12 years ago)23 January 2008 (16 years ago)

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 cores1152120
Core clock speed823 MHz725 MHz
Boost clock speed888 MHzno data
Number of transistors3,540 million378 million
Manufacturing process technology28 nm55 nm
Power consumption (TDP)130 Watt65 Watt
Texture fill rate85.255.800
Floating-point processing power2.046 TFLOPS0.174 TFLOPS
ROPs324
TMUs968

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).

InterfacePCIe 3.0 x16AGP 8x
Length241 mmno data
Width2-slot1-slot
Supplementary power connectors1x 6-pinFloppy

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 typeGDDR5DDR2
Maximum RAM amount2 GB512 MB
Memory bus width256 Bit128 Bit
Memory clock speed1400 MHz500 MHz
Memory bandwidth179.2 GB/s16 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 Connectors2x DVI, 1x HDMI, 1x DisplayPort2x DVI, 1x S-Video
HDMI+-

API compatibility

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

DirectX12 (11_0)10.1 (10_1)
Shader Model5.14.1
OpenGL4.63.3
OpenCL1.2N/A
Vulkan1.1.126N/A
CUDA3.0-

Pros & cons summary


Recency 22 August 2012 23 January 2008
Maximum RAM amount 2 GB 512 MB
Chip lithography 28 nm 55 nm
Power consumption (TDP) 130 Watt 65 Watt

GTX 660 OEM has an age advantage of 4 years, a 300% higher maximum VRAM amount, and a 96.4% more advanced lithography process.

ATI HD 3650 AGP, on the other hand, has 100% lower power consumption.

We couldn't decide between GeForce GTX 660 OEM and Radeon HD 3650 AGP. We've got no test results to judge.


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

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NVIDIA GeForce GTX 660 OEM
GeForce GTX 660 OEM
ATI Radeon HD 3650 AGP
Radeon HD 3650 AGP

Comparisons with similar GPUs

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Community ratings

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3.8 34 votes

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2.6 24 votes

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