GeForce GTX 850M vs Radeon R7 240

Intro

Compare all that to the Radeon R7 240, which comes with GPU clock speed of 730 MHz, and 2048 MB of DDR3 RAM running at 900 MHz through a 128-bit bus. It also is made up of 320 SPUs, 20 TAUs, and 8 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 850M		3340 points
Radeon R7 240		1218 points
	Difference: 2122 (174%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 240		30 Watts
GeForce GTX 850M		40 Watts
	Difference: 10 Watts (33%)

Memory Bandwidth

The GeForce GTX 850M, in theory, should perform just a bit faster than the Radeon R7 240 overall. (explain)

GeForce GTX 850M		32000 MB/sec
Radeon R7 240		28800 MB/sec
	Difference: 3200 (11%)

Texel Rate

The GeForce GTX 850M is much (more or less 140%) better at texture filtering than the Radeon R7 240. (explain)

GeForce GTX 850M		35040 Mtexels/sec
Radeon R7 240		14600 Mtexels/sec
	Difference: 20440 (140%)

Pixel Rate

The GeForce GTX 850M is quite a bit (more or less 140%) faster with regards to full screen anti-aliasing than the Radeon R7 240, and able to handle higher resolutions without losing too much performance. (explain)

GeForce GTX 850M		14016 Mpixels/sec
Radeon R7 240		5840 Mpixels/sec
	Difference: 8176 (140%)

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 (counted in megabytes per second) that can be moved over the external memory interface in a second. It is calculated by multiplying the card's bus width by its memory speed. If it uses DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's 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 amount of texture map elements (texels) that are processed in one second. This number is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The higher this number, the better the graphics 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 maximum number of pixels that the graphics chip could possibly record to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.