GeForce GTX 860M vs Radeon HD 6850

Intro

Compare those specifications to the Radeon HD 6850, which has a clock speed of 775 MHz and a GDDR5 memory speed of 1000 MHz. It also features a 256-bit memory bus, and makes use of a 40 nm design. It features 960 SPUs, 48 Texture Address Units, and 32 Raster Operation 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 860M		4340 points
Radeon HD 6850		2395 points
	Difference: 1945 (81%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 860M		45 Watts
Radeon HD 6850		127 Watts
	Difference: 82 Watts (182%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 6850 will be 100% faster than the GeForce GTX 860M overall, due to its greater bandwidth. (explain)

Radeon HD 6850		128000 MB/sec
GeForce GTX 860M		64000 MB/sec
	Difference: 64000 (100%)

Texel Rate

The GeForce GTX 860M should be much (approximately 106%) better at texture filtering than the Radeon HD 6850. (explain)

GeForce GTX 860M		76512 Mtexels/sec
Radeon HD 6850		37200 Mtexels/sec
	Difference: 39312 (106%)

Pixel Rate

The Radeon HD 6850 should be much (about 94%) more effective at AA than the GeForce GTX 860M, and should be able to handle higher screen resolutions better. (explain)

Radeon HD 6850		24800 Mpixels/sec
GeForce GTX 860M		12752 Mpixels/sec
	Difference: 12048 (94%)

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 (measured in megabytes per second) that can be transferred past the external memory interface within a second. It is calculated by multiplying the interface width by its memory speed. If the card has DDR memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the 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 can be applied in one second. This figure is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The better this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to 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 ability to get to the max fill rate.