GeForce GTX 650 vs Radeon R9 280X

Intro

Compare those specs to the Radeon R9 280X, which has GPU clock speed of 850 MHz, and 3072 MB of GDDR5 memory running at 1500 MHz through a 384-bit bus. It also is made up of 2048 SPUs, 128 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

Radeon R9 280X		8886 points
GeForce GTX 650		2263 points
	Difference: 6623 (293%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650		64 Watts
Radeon R9 280X		250 Watts
	Difference: 186 Watts (291%)

Memory Bandwidth

The Radeon R9 280X, in theory, should be much faster than the GeForce GTX 650 overall. (explain)

Radeon R9 280X		288000 MB/sec
GeForce GTX 650		80000 MB/sec
	Difference: 208000 (260%)

Texel Rate

The Radeon R9 280X should be much (approximately 221%) better at AF than the GeForce GTX 650. (explain)

Radeon R9 280X		108800 Mtexels/sec
GeForce GTX 650		33856 Mtexels/sec
	Difference: 74944 (221%)

Pixel Rate

The Radeon R9 280X should be quite a bit (about 61%) better at AA than the GeForce GTX 650, and able to handle higher screen resolutions without losing too much performance. (explain)

Radeon R9 280X		27200 Mpixels/sec
GeForce GTX 650		16928 Mpixels/sec
	Difference: 10272 (61%)

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 (counted in megabytes per second) that can be transferred over the external memory interface within a second. It's calculated by multiplying the bus width by its memory clock speed. In the case of DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's 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 is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

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