GeForce GTX 965M vs Radeon R9 270X

Intro

Compare those specifications to the Radeon R9 270X, which has a core clock frequency of 1000 MHz and a GDDR5 memory frequency of 1400 MHz. It also makes use of a 256-bit memory bus, and makes use of a 28 nm design. It is made up of 1280 SPUs, 80 Texture Address Units, and 32 ROPs.

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

Radeon R9 270X		6590 points
GeForce GTX 965M		5650 points
	Difference: 940 (17%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 965M		60 Watts
Radeon R9 270X		180 Watts
	Difference: 120 Watts (200%)

Memory Bandwidth

As far as performance goes, the Radeon R9 270X should in theory be a lot better than the GeForce GTX 965M overall. (explain)

Radeon R9 270X		179200 MB/sec
GeForce GTX 965M		64000 MB/sec
	Difference: 115200 (180%)

Texel Rate

The Radeon R9 270X is much (approximately 32%) faster with regards to texture filtering than the GeForce GTX 965M. (explain)

Radeon R9 270X		80000 Mtexels/sec
GeForce GTX 965M		60416 Mtexels/sec
	Difference: 19584 (32%)

Pixel Rate

The Radeon R9 270X should be a small bit (about 6%) faster with regards to AA than the GeForce GTX 965M, and able to handle higher resolutions more effectively. (explain)

Radeon R9 270X		32000 Mpixels/sec
GeForce GTX 965M		30208 Mpixels/sec
	Difference: 1792 (6%)

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 (counted in megabytes per second) that can be transferred across the external memory interface in one second. The number is worked out by multiplying the bus width by the speed of its memory. If it uses DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher 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 texture map elements (texels) that are applied per second. This number is calculated by multiplying the total amount of texture units of the card by the core clock 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 processed in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.