GeForce GTX 860M vs Radeon R7 250

Intro

Compare all that to the Radeon R7 250, which has a core clock speed of 1000 MHz and a GDDR5 memory frequency of 1150 MHz. It also uses a 128-bit memory bus, and uses a 28 nm design. It is made up of 384 SPUs, 24 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 860M		4340 points
Radeon R7 250		1836 points
	Difference: 2504 (136%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 860M		45 Watts
Radeon R7 250		65 Watts
	Difference: 20 Watts (44%)

Memory Bandwidth

Theoretically speaking, the Radeon R7 250 will be 15% faster than the GeForce GTX 860M in general, due to its higher bandwidth. (explain)

Radeon R7 250		73600 MB/sec
GeForce GTX 860M		64000 MB/sec
	Difference: 9600 (15%)

Texel Rate

The GeForce GTX 860M is a lot (more or less 219%) faster with regards to texture filtering than the Radeon R7 250. (explain)

GeForce GTX 860M		76512 Mtexels/sec
Radeon R7 250		24000 Mtexels/sec
	Difference: 52512 (219%)

Pixel Rate

The GeForce GTX 860M should be quite a bit (about 59%) better at anti-aliasing than the Radeon R7 250, and capable of handling higher resolutions without slowing down too much. (explain)

GeForce GTX 860M		12752 Mpixels/sec
Radeon R7 250		8000 Mpixels/sec
	Difference: 4752 (59%)

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 maximum amount of information (in units of megabytes per second) that can be transported across the external memory interface in one second. It is worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher 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 amount of texture map elements (texels) that are applied in one second. This figure is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher 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 the graphics card can 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 Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.