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GeForce GTX 650 vs GeForce GTX 970M

Intro

The GeForce GTX 650 has a GPU clock speed of 1058 MHz, and the 1024 MB of GDDR5 memory runs at 1250 MHz through a 128-bit bus. It also is made up of 384 SPUs, 32 TAUs, and 16 ROPs.

Compare all that to the GeForce GTX 970M, which uses a 28 nm design. nVidia has set the core speed at 924 MHz. The GDDR5 RAM works at a speed of 1000 MHz on this specific card. It features 1280 SPUs as well as 80 TAUs and 48 ROPs.

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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 970M 7520 points
GeForce GTX 650 2263 points
Difference: 5257 (232%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650 64 Watts
GeForce GTX 970M 75 Watts
Difference: 11 Watts (17%)

Memory Bandwidth

In theory, the GeForce GTX 970M will be 20% quicker than the GeForce GTX 650 in general, because of its higher data rate. (explain)

GeForce GTX 970M 96000 MB/sec
GeForce GTX 650 80000 MB/sec
Difference: 16000 (20%)

Texel Rate

The GeForce GTX 970M will be quite a bit (approximately 118%) faster with regards to AF than the GeForce GTX 650. (explain)

GeForce GTX 970M 73920 Mtexels/sec
GeForce GTX 650 33856 Mtexels/sec
Difference: 40064 (118%)

Pixel Rate

The GeForce GTX 970M should be quite a bit (approximately 162%) faster with regards to full screen anti-aliasing than the GeForce GTX 650, and should be able to handle higher screen resolutions better. (explain)

GeForce GTX 970M 44352 Mpixels/sec
GeForce GTX 650 16928 Mpixels/sec
Difference: 27424 (162%)

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 GTX 650

Amazon.com

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GeForce GTX 970M

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 GTX 650 GeForce GTX 970M
Manufacturer nVidia nVidia
Year September 2012 October 7 2014
Code Name GK107 GM204
Memory 1024 MB 3072 MB
Core Speed 1058 MHz 924 MHz
Memory Speed 5000 MHz 4000 MHz
Power (Max TDP) 64 watts 75 watts
Bandwidth 80000 MB/sec 96000 MB/sec
Texel Rate 33856 Mtexels/sec 73920 Mtexels/sec
Pixel Rate 16928 Mpixels/sec 44352 Mpixels/sec
Unified Shaders 384 1280
Texture Mapping Units 32 80
Render Output Units 16 48
Bus Type GDDR5 GDDR5
Bus Width 128-bit 192-bit
Fab Process 28 nm 28 nm
Transistors 1300 million (Unknown) million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.0 DirectX 12
OpenGL Version OpenGL 4.3 OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the maximum amount of information (measured in megabytes per second) that can be transferred over the external memory interface within a second. The number is calculated by multiplying the card's bus width by its memory speed. If the card has 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, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the core clock speed. 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, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

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GeForce GTX 650

Amazon.com

Check prices at:

GeForce GTX 970M

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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