Radeon E6760 PCIe vs GeForce GT 640M Mac Edition

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Primary details

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

Place in the ranking1094not rated
Place by popularitynot in top-100not in top-100
Power efficiency2.27no data
ArchitectureKepler (2012−2018)TeraScale 2 (2009−2015)
GPU code nameGK107Turks
Market segmentLaptopLaptop
Release date3 February 2013 (11 years ago)2 May 2011 (13 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 cores384480
Core clock speed745 MHz600 MHz
Number of transistors1,270 million716 million
Manufacturing process technology28 nm40 nm
Power consumption (TDP)32 Watt45 Watt
Texture fill rate23.8414.40
Floating-point processing power0.5722 TFLOPS0.576 TFLOPS
ROPs88
TMUs3224

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 x16PCIe 2.0 x16

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 typeGDDR5GDDR5
Maximum RAM amount512 MB1 GB
Memory bus width64 Bit128 Bit
Memory clock speed1250 MHz800 MHz
Memory bandwidth40 GB/s51.2 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 outputs6x mini-DisplayPort

API compatibility

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

DirectX12 (11_0)11.2 (11_0)
Shader Model5.15.0
OpenGL4.64.4
OpenCL1.21.2
Vulkan1.1.126N/A
CUDA3.0-

Pros & cons summary


Recency 3 February 2013 2 May 2011
Maximum RAM amount 512 MB 1 GB
Chip lithography 28 nm 40 nm
Power consumption (TDP) 32 Watt 45 Watt

GT 640M Mac Edition has an age advantage of 1 year, a 42.9% more advanced lithography process, and 40.6% lower power consumption.

E6760 PCIe, on the other hand, has a 100% higher maximum VRAM amount.

We couldn't decide between GeForce GT 640M Mac Edition and Radeon E6760 PCIe. 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 GT 640M Mac Edition
GeForce GT 640M Mac Edition
AMD Radeon E6760 PCIe
Radeon E6760 PCIe

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