Radeon R9 280 vs Radeon R9 380 4G

Intro

Compare those specifications to the Radeon R9 380 4G, which has a clock speed of 970 MHz and a GDDR5 memory frequency of 1425 MHz. It also uses a 256-bit memory bus, and uses a 28 nm design. It features 1792 SPUs, 112 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 380 4G		8837 points
Radeon R9 280		7961 points
	Difference: 876 (11%)

Ethereum Mining Hash Rate

Radeon R9 280		22 Mh/s
Radeon R9 380 4G		21 Mh/s
	Difference: 1 (5%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 380 4G		190 Watts
Radeon R9 280		250 Watts
	Difference: 60 Watts (32%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 280 should be much faster than the Radeon R9 380 4G in general. (explain)

Radeon R9 280		240000 MB/sec
Radeon R9 380 4G		182400 MB/sec
	Difference: 57600 (32%)

Texel Rate

The Radeon R9 380 4G is a little bit (about 4%) faster with regards to AF than the Radeon R9 280. (explain)

Radeon R9 380 4G		108640 Mtexels/sec
Radeon R9 280		104496 Mtexels/sec
	Difference: 4144 (4%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon R9 380 4G is the winner, though not by far. (explain)

Radeon R9 380 4G		31040 Mpixels/sec
Radeon R9 280		29856 Mpixels/sec
	Difference: 1184 (4%)

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 max amount of data (in units of megabytes per second) that can be transported across the external memory interface in a second. The number is worked out by multiplying the bus width by the speed of its memory. In the case of DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed 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 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 maximum amount of pixels that the graphics card could 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 Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.