GeForce GTS 450 vs Radeon R9 390 8G

Intro

Compare those specs to the Radeon R9 390 8G, which makes use of a 28 nm design. AMD has set the core frequency at 1000 MHz. The GDDR5 RAM runs at a frequency of 1500 MHz on this particular card. It features 2560 SPUs as well as 160 TAUs and 64 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

Radeon R9 390 8G		12733 points
GeForce GTS 450		1453 points
	Difference: 11280 (776%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTS 450		106 Watts
Radeon R9 390 8G		275 Watts
	Difference: 169 Watts (159%)

Memory Bandwidth

The Radeon R9 390 8G, in theory, should be a lot faster than the GeForce GTS 450 in general. (explain)

Radeon R9 390 8G		384000 MB/sec
GeForce GTS 450		57728 MB/sec
	Difference: 326272 (565%)

Texel Rate

The Radeon R9 390 8G should be quite a bit (approximately 539%) more effective at AF than the GeForce GTS 450. (explain)

Radeon R9 390 8G		160000 Mtexels/sec
GeForce GTS 450		25056 Mtexels/sec
	Difference: 134944 (539%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon R9 390 8G is superior to the GeForce GTS 450, by far. (explain)

Radeon R9 390 8G		64000 Mpixels/sec
GeForce GTS 450		12528 Mpixels/sec
	Difference: 51472 (411%)

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 information (measured in MB per second) that can be transferred across the external memory interface in one second. It's calculated by multiplying the bus width by its memory speed. In the case of DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The better this number, the better the video 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 maximum amount of pixels the video card can possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.