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GeForce GT 640 DDR3 vs GeForce GTX 1050

Intro

The GeForce GT 640 DDR3 has core speeds of 900 MHz on the GPU, and 1782 MHz on the 2048 MB of DDR3 memory. It features 384 SPUs along with 32 TAUs and 16 Rasterization Operator Units.

Compare those specs to the GeForce GTX 1050, which has GPU core speed of 1354 MHz, and 2048 MB of GDDR5 memory running at 1750 MHz through a 128-bit bus. It also is made up of 640 SPUs, 40 Texture Address Units, and 32 Raster Operation Units.

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

GeForce GTX 1050 6657 points
GeForce GT 640 DDR3 1560 points
Difference: 5097 (327%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 640 DDR3 65 Watts
GeForce GTX 1050 75 Watts
Difference: 10 Watts (15%)

Memory Bandwidth

Theoretically, the GeForce GTX 1050 should be quite a bit faster than the GeForce GT 640 DDR3 in general. (explain)

GeForce GTX 1050 114688 MB/sec
GeForce GT 640 DDR3 57024 MB/sec
Difference: 57664 (101%)

Texel Rate

The GeForce GTX 1050 should be much (more or less 88%) faster with regards to texture filtering than the GeForce GT 640 DDR3. (explain)

GeForce GTX 1050 54160 Mtexels/sec
GeForce GT 640 DDR3 28800 Mtexels/sec
Difference: 25360 (88%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 1050 is the winner, by a large margin. (explain)

GeForce GTX 1050 43328 Mpixels/sec
GeForce GT 640 DDR3 14400 Mpixels/sec
Difference: 28928 (201%)

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 640 DDR3

Amazon.com

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GeForce GTX 1050

Amazon.com

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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 640 DDR3 GeForce GTX 1050
Manufacturer nVidia nVidia
Year June 2012 October 2016
Code Name GK107 GP107-300
Memory 2048 MB 2048 MB
Core Speed 900 MHz 1354 MHz
Memory Speed 3564 MHz 7000 MHz
Power (Max TDP) 65 watts 75 watts
Bandwidth 57024 MB/sec 114688 MB/sec
Texel Rate 28800 Mtexels/sec 54160 Mtexels/sec
Pixel Rate 14400 Mpixels/sec 43328 Mpixels/sec
Unified Shaders 384 640
Texture Mapping Units 32 40
Render Output Units 16 32
Bus Type DDR3 GDDR5
Bus Width 128-bit 128-bit
Fab Process 28 nm 14 nm
Transistors 1300 million 3300 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.0 DirectX 12.0
OpenGL Version OpenGL 4.2 OpenGL 4.5

Memory Bandwidth: Bandwidth is the maximum amount of data (in units of MB per second) that can be moved across the external memory interface in one second. It is calculated by multiplying the interface width by the speed of its memory. If it uses DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, 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 amount of texture map elements (texels) that can be applied in one second. This number is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

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GeForce GT 640 DDR3

Amazon.com

Check prices at:

GeForce GTX 1050

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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