Submit Benchmarks!

Submit SSD Benchmark
Submit GPU Benchmark

Compare any two graphics cards:
VS

GeForce 840M vs GeForce 920M

Intro

The GeForce 840M features a GPU core speed of 1029 MHz, and the 2048 MB of DDR3 memory is set to run at 1000 MHz through a 64-bit bus. It also is comprised of 384 Stream Processors, 24 TAUs, and 8 ROPs.

Compare those specs to the GeForce 920M, which comes with a GPU core clock speed of 954 MHz, and 2048 MB of DDR3 RAM running at 900 MHz through a 64-bit bus. It also is comprised of 384 SPUs, 32 Texture Address Units, and 8 ROPs.

Display Graphs

Hide Graphs

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 840M 1600 points
GeForce 920M 1180 points
Difference: 420 (36%)

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the GeForce 840M should perform just a bit faster than the GeForce 920M in general. (explain)

GeForce 840M 16000 MB/sec
GeForce 920M 14400 MB/sec
Difference: 1600 (11%)

Texel Rate

The GeForce 920M should be a lot (more or less 24%) more effective at anisotropic filtering than the GeForce 840M. (explain)

GeForce 920M 30528 Mtexels/sec
GeForce 840M 24696 Mtexels/sec
Difference: 5832 (24%)

Pixel Rate

If using a high resolution is important to you, then the GeForce 840M is superior to the GeForce 920M, though not by far. (explain)

GeForce 840M 8232 Mpixels/sec
GeForce 920M 7632 Mpixels/sec
Difference: 600 (8%)

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

Display Prices

Hide Prices

GeForce 840M

Amazon.com

Check prices at:

GeForce 920M

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

Display Specifications

Hide Specifications

Model GeForce 840M GeForce 920M
Manufacturer nVidia nVidia
Year March 12 2014 March 12 2015
Code Name GM108 GK208
Memory 2048 MB 2048 MB
Core Speed 1029 MHz 954 MHz
Memory Speed 2000 MHz 1800 MHz
Power (Max TDP) 30 watts (Unknown) watts
Bandwidth 16000 MB/sec 14400 MB/sec
Texel Rate 24696 Mtexels/sec 30528 Mtexels/sec
Pixel Rate 8232 Mpixels/sec 7632 Mpixels/sec
Unified Shaders 384 384
Texture Mapping Units 24 32
Render Output Units 8 8
Bus Type DDR3 DDR3
Bus Width 64-bit 64-bit
Fab Process 28 nm 28 nm
Transistors (Unknown) million (Unknown) million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 12 DirectX 12
OpenGL Version OpenGL 4.5 OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the largest amount of data (counted in megabytes per second) that can be transferred across the external memory interface in a second. It is worked out by multiplying the card's bus width by its memory speed. In the case of DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. 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 amount 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 speed of the chip. The higher the texel rate, the better the card will be at handling 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 that the graphics chip can possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the clock 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 output rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce 840M

Amazon.com

Check prices at:

GeForce 920M

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.

Comments

Be the first to leave a comment!

Your email address will not be published. Required fields are marked *


*

WordPress Anti-Spam by WP-SpamShield