GeForce GTX 960M vs Radeon HD 4870 X2

Intro

Compare all that to the Radeon HD 4870 X2, which features a GPU core clock speed of 750 MHz, and 1024 MB of GDDR5 memory running at 900 MHz through a 256-bit bus. It also is comprised of 800(160x5) SPUs, 40 TAUs, and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 960M		65 Watts
Radeon HD 4870 X2		350 Watts
	Difference: 285 Watts (438%)

Memory Bandwidth

The Radeon HD 4870 X2 should in theory perform quite a bit faster than the GeForce GTX 960M overall. (explain)

Radeon HD 4870 X2		230400 MB/sec
GeForce GTX 960M		64000 MB/sec
	Difference: 166400 (260%)

Texel Rate

The Radeon HD 4870 X2 is quite a bit (approximately 37%) more effective at anisotropic filtering than the GeForce GTX 960M. (explain)

Radeon HD 4870 X2		60000 Mtexels/sec
GeForce GTX 960M		43840 Mtexels/sec
	Difference: 16160 (37%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon HD 4870 X2 is superior to the GeForce GTX 960M, by far. (explain)

Radeon HD 4870 X2		24000 Mpixels/sec
GeForce GTX 960M		17536 Mpixels/sec
	Difference: 6464 (37%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the max amount of data (measured in megabytes per second) that can be moved past the external memory interface within a second. The number is calculated by multiplying the card's bus width by its memory speed. If the card has DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's 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 number of texture map elements (texels) that are applied in one second. This is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The better the texel rate, the better the 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 that the graphics chip could possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.