GeForce GTX 970M vs Radeon R9 270

Intro

Compare that to the Radeon R9 270, which features a clock speed of 900 MHz and a GDDR5 memory speed of 1400 MHz. It also features a 256-bit bus, and uses a 28 nm design. It features 1280 SPUs, 80 TAUs, and 32 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 970M		7520 points
Radeon R9 270		5943 points
	Difference: 1577 (27%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 970M		75 Watts
Radeon R9 270		150 Watts
	Difference: 75 Watts (100%)

Memory Bandwidth

In theory, the Radeon R9 270 should perform much faster than the GeForce GTX 970M overall. (explain)

Radeon R9 270		179200 MB/sec
GeForce GTX 970M		96000 MB/sec
	Difference: 83200 (87%)

Texel Rate

The GeForce GTX 970M will be a small bit (more or less 3%) more effective at texture filtering than the Radeon R9 270. (explain)

GeForce GTX 970M		73920 Mtexels/sec
Radeon R9 270		72000 Mtexels/sec
	Difference: 1920 (3%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 970M is superior to the Radeon R9 270, by a large margin. (explain)

GeForce GTX 970M		44352 Mpixels/sec
Radeon R9 270		28800 Mpixels/sec
	Difference: 15552 (54%)

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 (in units of MB per second) that can be transferred across the external memory interface within a second. The number is worked out by multiplying the bus width by the speed of its memory. If the card has DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to its local memory in a 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 - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.