GeForce GTX 965M vs Radeon HD 6870

Intro

Compare all of that to the Radeon HD 6870, which makes use of a 40 nm design. AMD has set the core frequency at 900 MHz. The GDDR5 memory works at a frequency of 1050 MHz on this card. It features 1120 SPUs along with 56 TAUs 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 965M		5650 points
Radeon HD 6870		2870 points
	Difference: 2780 (97%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 965M		60 Watts
Radeon HD 6870		151 Watts
	Difference: 91 Watts (152%)

Memory Bandwidth

The Radeon HD 6870 should in theory perform a lot faster than the GeForce GTX 965M overall. (explain)

Radeon HD 6870		134400 MB/sec
GeForce GTX 965M		64000 MB/sec
	Difference: 70400 (110%)

Texel Rate

The GeForce GTX 965M is a bit (more or less 20%) more effective at AF than the Radeon HD 6870. (explain)

GeForce GTX 965M		60416 Mtexels/sec
Radeon HD 6870		50400 Mtexels/sec
	Difference: 10016 (20%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 965M is a better choice, but it probably won't make a huge difference. (explain)

GeForce GTX 965M		30208 Mpixels/sec
Radeon HD 6870		28800 Mpixels/sec
	Difference: 1408 (5%)

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: Bandwidth is the max amount of information (counted in megabytes per second) that can be moved past the external memory interface in a second. The number is calculated by multiplying the card's interface width by its memory speed. In the case of DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.