GeForce GTX 980M vs Geforce GTX 770

Intro

Compare that to the Geforce GTX 770, which uses a 28 nm design. nVidia has set the core frequency at 1046 MHz. The GDDR5 RAM works at a frequency of 1753 MHz on this specific card. It features 1536 SPUs along with 128 Texture Address Units and 32 Rasterization Operator Units.

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 GTX 980M		9476 points
Geforce GTX 770		7854 points
	Difference: 1622 (21%)

Zcash Mining Hash Rate

GeForce GTX 980M		155 Sol/s
Geforce GTX 770		70 Sol/s
	Difference: 85 (121%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 980M		100 Watts
Geforce GTX 770		230 Watts
	Difference: 130 Watts (130%)

Memory Bandwidth

Theoretically, the Geforce GTX 770 should perform a lot faster than the GeForce GTX 980M overall. (explain)

Geforce GTX 770		224384 MB/sec
GeForce GTX 980M		128000 MB/sec
	Difference: 96384 (75%)

Texel Rate

The Geforce GTX 770 is a lot (approximately 34%) better at anisotropic filtering than the GeForce GTX 980M. (explain)

Geforce GTX 770		133888 Mtexels/sec
GeForce GTX 980M		99648 Mtexels/sec
	Difference: 34240 (34%)

Pixel Rate

The GeForce GTX 980M will be quite a bit (approximately 98%) more effective at full screen anti-aliasing than the Geforce GTX 770, and also capable of handling higher screen resolutions more effectively. (explain)

GeForce GTX 980M		66432 Mpixels/sec
Geforce GTX 770		33472 Mpixels/sec
	Difference: 32960 (98%)

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

Specifications

Memory Bandwidth: Memory bandwidth is the maximum amount of data (counted in MB per second) that can be transferred past the external memory interface within a second. It's calculated by multiplying the interface width by its memory clock speed. In the case of DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.