GeForce GTX 870M vs Radeon R7 240

Intro

Compare those specs to the Radeon R7 240, which has a core clock speed of 730 MHz and a DDR3 memory speed of 900 MHz. It also makes use of a 128-bit memory bus, and makes use of a 28 nm design. It is comprised of 320 SPUs, 20 TAUs, and 8 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 870M		4770 points
Radeon R7 240		1218 points
	Difference: 3552 (292%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 240		30 Watts
GeForce GTX 870M		110 Watts
	Difference: 80 Watts (267%)

Memory Bandwidth

Theoretically, the GeForce GTX 870M should perform quite a bit faster than the Radeon R7 240 overall. (explain)

GeForce GTX 870M		96000 MB/sec
Radeon R7 240		28800 MB/sec
	Difference: 67200 (233%)

Texel Rate

The GeForce GTX 870M is quite a bit (about 622%) better at AF than the Radeon R7 240. (explain)

GeForce GTX 870M		105392 Mtexels/sec
Radeon R7 240		14600 Mtexels/sec
	Difference: 90792 (622%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 870M is a better choice, and very much so. (explain)

GeForce GTX 870M		22584 Mpixels/sec
Radeon R7 240		5840 Mpixels/sec
	Difference: 16744 (287%)

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 largest amount of data (in units of MB per second) that can be transferred over the external memory interface in a second. It is worked out by multiplying the interface width by its memory speed. If it uses DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster 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 are processed per second. This number is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the video 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 most pixels that the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.