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GeForce GTX 970M vs Radeon R7 250X

Intro

The GeForce GTX 970M uses a 28 nm design. nVidia has set the core frequency at 924 MHz. The GDDR5 memory works at a speed of 1000 MHz on this specific card. It features 1280 SPUs as well as 80 Texture Address Units and 48 Rasterization Operator Units.

Compare all of that to the Radeon R7 250X, which has GPU core speed of 1000 MHz, and 1024 MB of GDDR5 memory running at 1125 MHz through a 128-bit bus. It also is comprised of 640 Stream Processors, 40 TAUs, and 16 Raster Operation Units.

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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 R7 250X		2860 points
	Difference: 4660 (163%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 970M		75 Watts
Radeon R7 250X		95 Watts
	Difference: 20 Watts (27%)

Memory Bandwidth

In theory, the GeForce GTX 970M will be 33% quicker than the Radeon R7 250X in general, due to its higher bandwidth. (explain)

GeForce GTX 970M		96000 MB/sec
Radeon R7 250X		72000 MB/sec
	Difference: 24000 (33%)

Texel Rate

The GeForce GTX 970M is a lot (more or less 85%) more effective at anisotropic filtering than the Radeon R7 250X. (explain)

GeForce GTX 970M		73920 Mtexels/sec
Radeon R7 250X		40000 Mtexels/sec
	Difference: 33920 (85%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 970M is the winner, by a large margin. (explain)

GeForce GTX 970M		44352 Mpixels/sec
Radeon R7 250X		16000 Mpixels/sec
	Difference: 28352 (177%)

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

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GeForce GTX 970M

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Radeon R7 250X

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Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model	GeForce GTX 970M	Radeon R7 250X
Manufacturer	nVidia	AMD
Year	October 7 2014	February 2014
Code Name	GM204	Cape Verde XT
Memory	3072 MB	1024 MB
Core Speed	924 MHz	1000 MHz
Memory Speed	4000 MHz	4500 MHz
Power (Max TDP)	75 watts	95 watts
Bandwidth	96000 MB/sec	72000 MB/sec
Texel Rate	73920 Mtexels/sec	40000 Mtexels/sec
Pixel Rate	44352 Mpixels/sec	16000 Mpixels/sec
Unified Shaders	1280	640
Texture Mapping Units	80	40
Render Output Units	48	16
Bus Type	GDDR5	GDDR5
Bus Width	192-bit	128-bit
Fab Process	28 nm	28 nm
Transistors	(Unknown) million	1500 million
Bus	PCIe 3.0 x16	PCIe 3.0 x16
DirectX Version	DirectX 12	DirectX 11.2
OpenGL Version	OpenGL 4.5	OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the max amount of data (in units of MB per second) that can be transported across the external memory interface in a second. It's calculated by multiplying the card's interface width by the speed of its memory. If the card has DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.

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