GeForce GTX 860M vs Radeon HD 6770

Intro

Compare those specs to the Radeon HD 6770, which features core clock speeds of 900 MHz on the GPU, and 1050 MHz on the 512 MB of GDDR5 RAM. It features 800 SPUs along with 40 Texture Address Units and 16 ROPs.

Display Graphs

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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 860M		4340 points
Radeon HD 6770		1520 points
	Difference: 2820 (186%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 860M		45 Watts
Radeon HD 6770		108 Watts
	Difference: 63 Watts (140%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 6770 will be 5% quicker than the GeForce GTX 860M in general, due to its higher bandwidth. (explain)

Radeon HD 6770		67200 MB/sec
GeForce GTX 860M		64000 MB/sec
	Difference: 3200 (5%)

Texel Rate

The GeForce GTX 860M is quite a bit (about 113%) faster with regards to texture filtering than the Radeon HD 6770. (explain)

GeForce GTX 860M		76512 Mtexels/sec
Radeon HD 6770		36000 Mtexels/sec
	Difference: 40512 (113%)

Pixel Rate

The Radeon HD 6770 is a small bit (more or less 13%) faster with regards to AA than the GeForce GTX 860M, and will be able to handle higher screen resolutions better. (explain)

Radeon HD 6770		14400 Mpixels/sec
GeForce GTX 860M		12752 Mpixels/sec
	Difference: 1648 (13%)

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 max amount of data (in units of megabytes per second) that can be transported past the external memory interface in a second. The number is worked out by multiplying the bus width by its memory clock speed. If the card has DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount 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 rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.