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GeForce GT 340 vs GeForce GTX 860M

Intro

The GeForce GT 340 has a core clock frequency of 550 MHz and a GDDR5 memory speed of 850 MHz. It also makes use of a 128-bit memory bus, and uses a 40 nm design. It features 96 SPUs, 32 Texture Address Units, and 8 Raster Operation Units.

Compare all of that to the GeForce GTX 860M, which comes with core speeds of 797 MHz on the GPU, and 1000 MHz on the 4096 MB of GDDR5 memory. It features 1152 SPUs along with 96 Texture Address Units and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 860M 45 Watts
GeForce GT 340 69 Watts
Difference: 24 Watts (53%)

Memory Bandwidth

Performance-wise, the GeForce GTX 860M should in theory be a small bit superior to the GeForce GT 340 overall. (explain)

GeForce GTX 860M 64000 MB/sec
GeForce GT 340 54400 MB/sec
Difference: 9600 (18%)

Texel Rate

The GeForce GTX 860M will be a lot (about 335%) better at AF than the GeForce GT 340. (explain)

GeForce GTX 860M 76512 Mtexels/sec
GeForce GT 340 17600 Mtexels/sec
Difference: 58912 (335%)

Pixel Rate

The GeForce GTX 860M should be much (more or less 190%) better at full screen anti-aliasing than the GeForce GT 340, and should be able to handle higher screen resolutions while still performing well. (explain)

GeForce GTX 860M 12752 Mpixels/sec
GeForce GT 340 4400 Mpixels/sec
Difference: 8352 (190%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

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GeForce GT 340

Amazon.com

Check prices at:

GeForce GTX 860M

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model GeForce GT 340 GeForce GTX 860M
Manufacturer nVidia nVidia
Year February 2010 March 12 2014
Code Name GT215 GM107
Memory 512 MB 4096 MB
Core Speed 550 MHz 797 MHz
Memory Speed 3400 MHz 4000 MHz
Power (Max TDP) 69 watts 45 watts
Bandwidth 54400 MB/sec 64000 MB/sec
Texel Rate 17600 Mtexels/sec 76512 Mtexels/sec
Pixel Rate 4400 Mpixels/sec 12752 Mpixels/sec
Unified Shaders 96 1152
Texture Mapping Units 32 96
Render Output Units 8 16
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 40 nm 28 nm
Transistors 727 million (Unknown) million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 10.1 DirectX 12
OpenGL Version OpenGL 3.3 OpenGL 4.5

Memory Bandwidth: Bandwidth is the largest amount of information (counted in MB per second) that can be transferred across the external memory interface within a second. The number is worked out by multiplying the bus width by the speed of its memory. If it uses DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

Hide Prices

GeForce GT 340

Amazon.com

Check prices at:

GeForce GTX 860M

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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