GeForce GTX 970M vs Radeon HD 7850

Intro

Compare all that to the Radeon HD 7850, which has a GPU core clock speed of 860 MHz, and 2048 MB of GDDR5 memory running at 1200 MHz through a 256-bit bus. It also features 1024 Stream Processors, 64 TAUs, and 32 Raster Operation Units.

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 970M		7520 points
Radeon HD 7850		5200 points
	Difference: 2320 (45%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 970M		75 Watts
Radeon HD 7850		130 Watts
	Difference: 55 Watts (73%)

Memory Bandwidth

As far as performance goes, the Radeon HD 7850 should theoretically be a lot superior to the GeForce GTX 970M overall. (explain)

Radeon HD 7850		153600 MB/sec
GeForce GTX 970M		96000 MB/sec
	Difference: 57600 (60%)

Texel Rate

The GeForce GTX 970M should be much (more or less 34%) more effective at anisotropic filtering than the Radeon HD 7850. (explain)

GeForce GTX 970M		73920 Mtexels/sec
Radeon HD 7850		55040 Mtexels/sec
	Difference: 18880 (34%)

Pixel Rate

The GeForce GTX 970M will be a lot (about 61%) faster with regards to anti-aliasing than the Radeon HD 7850, and also will be capable of handling higher resolutions better. (explain)

GeForce GTX 970M		44352 Mpixels/sec
Radeon HD 7850		27520 Mpixels/sec
	Difference: 16832 (61%)

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 largest amount of information (in units of MB per second) that can be moved over the external memory interface in one second. The number is worked out by multiplying the card's interface width by its memory clock speed. If the card has DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This 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 graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.