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GeForce 940M vs GeForce GTS 250 1GB

Intro

The GeForce 940M comes with clock speeds of 1072 MHz on the GPU, and 1000 MHz on the 2048 MB of DDR3 RAM. It features 384 SPUs as well as 24 TAUs and 8 ROPs.

Compare those specs to the GeForce GTS 250 1GB, which features a core clock frequency of 738 MHz and a GDDR3 memory speed of 1100 MHz. It also features a 256-bit memory bus, and makes use of a 65/55 nm design. It features 128 SPUs, 64 Texture Address Units, and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Performance-wise, the GeForce GTS 250 1GB should in theory be much superior to the GeForce 940M in general. (explain)

GeForce GTS 250 1GB 70400 MB/sec
GeForce 940M 16000 MB/sec
Difference: 54400 (340%)

Texel Rate

The GeForce GTS 250 1GB should be much (approximately 84%) better at anisotropic filtering than the GeForce 940M. (explain)

GeForce GTS 250 1GB 47232 Mtexels/sec
GeForce 940M 25728 Mtexels/sec
Difference: 21504 (84%)

Pixel Rate

The GeForce GTS 250 1GB will be much (approximately 38%) faster with regards to FSAA than the GeForce 940M, and also capable of handling higher screen resolutions better. (explain)

GeForce GTS 250 1GB 11808 Mpixels/sec
GeForce 940M 8576 Mpixels/sec
Difference: 3232 (38%)

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 940M

Amazon.com

Check prices at:

GeForce GTS 250 1GB

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 940M GeForce GTS 250 1GB
Manufacturer nVidia nVidia
Year March 12 2015 March 3, 2009
Code Name GM108 G92a/b
Memory 2048 MB 1024 MB
Core Speed 1072 MHz 738 MHz
Memory Speed 2000 MHz 2200 MHz
Power (Max TDP) (Unknown) watts 145 watts
Bandwidth 16000 MB/sec 70400 MB/sec
Texel Rate 25728 Mtexels/sec 47232 Mtexels/sec
Pixel Rate 8576 Mpixels/sec 11808 Mpixels/sec
Unified Shaders 384 128
Texture Mapping Units 24 64
Render Output Units 8 16
Bus Type DDR3 GDDR3
Bus Width 64-bit 256-bit
Fab Process 28 nm 65/55 nm
Transistors (Unknown) million 754 million
Bus PCIe 3.0 x16 PCIe x16 2.0
DirectX Version DirectX 12 DirectX 10
OpenGL Version OpenGL 4.5 OpenGL 3.1

Memory Bandwidth: Memory bandwidth is the max amount of data (counted in MB per second) that can be transferred over the external memory interface within a second. It's calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on quite a few 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

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GeForce 940M

Amazon.com

Check prices at:

GeForce GTS 250 1GB

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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