ATI Radeon X800 GTO vs GeForce GTX 660M Mac Edition

Primary details

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

Place in the ranking966not rated
Place by popularitynot in top-100not in top-100
Power efficiency2.17no data
ArchitectureKepler (2012−2018)R400 (2004−2008)
GPU code nameGK107R423
Market segmentLaptopDesktop
Release date1 April 2013 (11 years ago)29 December 2007 (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 cores384no data
Core clock speed950 MHz400 MHz
Number of transistors1,270 million160 million
Manufacturing process technology28 nm130 nm
Power consumption (TDP)50 Watt49 Watt
Texture fill rate30.404.800
Floating-point processing power0.7296 TFLOPSno data
ROPs1612
TMUs3212

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).

InterfaceMXM-B (3.0)PCIe 1.0 x16
Widthno data1-slot
Supplementary power connectorsNoneNone

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 typeGDDR5DDR
Maximum RAM amount512 MB128 MB
Memory bus width128 Bit256 Bit
Memory clock speed1250 MHz350 MHz
Memory bandwidth80 GB/s22.4 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 ConnectorsNo outputs1x DVI, 1x VGA, 1x S-Video

API compatibility

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

DirectX12 (11_0)9.0b (9_2)
Shader Model5.1no data
OpenGL4.62.0
OpenCL1.2N/A
Vulkan1.1.126N/A
CUDA3.0-

Pros & cons summary


Recency 1 April 2013 29 December 2007
Maximum RAM amount 512 MB 128 MB
Chip lithography 28 nm 130 nm
Power consumption (TDP) 50 Watt 49 Watt

GTX 660M Mac Edition has an age advantage of 5 years, a 300% higher maximum VRAM amount, and a 364.3% more advanced lithography process.

ATI X800 GTO, on the other hand, has 2% lower power consumption.

We couldn't decide between GeForce GTX 660M Mac Edition and Radeon X800 GTO. We've got no test results to judge.

Be aware that GeForce GTX 660M Mac Edition is a notebook card while Radeon X800 GTO is a desktop one.


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 660M Mac Edition
GeForce GTX 660M Mac Edition
ATI Radeon X800 GTO
Radeon X800 GTO

Comparisons with similar GPUs

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Community ratings

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3 22 votes

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3.1 31 vote

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Questions & comments

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