Radeon HD 7950 3GB vs Radeon R9 280X

Intro

Compare those specs to the Radeon R9 280X, which features a clock speed of 850 MHz and a GDDR5 memory frequency of 1500 MHz. It also features a 384-bit bus, and makes use of a 28 nm design. It features 2048 SPUs, 128 TAUs, 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.

Zcash Mining Hash Rate

Radeon R9 280X		294 Sol/s
Radeon HD 7950 3GB		229 Sol/s
	Difference: 65 (28%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7950 3GB		200 Watts
Radeon R9 280X		250 Watts
	Difference: 50 Watts (25%)

Memory Bandwidth

As far as performance goes, the Radeon R9 280X should theoretically be a bit superior to the Radeon HD 7950 3GB overall. (explain)

Radeon R9 280X		288000 MB/sec
Radeon HD 7950 3GB		240000 MB/sec
	Difference: 48000 (20%)

Texel Rate

The Radeon R9 280X is quite a bit (approximately 21%) more effective at AF than the Radeon HD 7950 3GB. (explain)

Radeon R9 280X		108800 Mtexels/sec
Radeon HD 7950 3GB		89600 Mtexels/sec
	Difference: 19200 (21%)

Pixel Rate

The Radeon R9 280X should be a small bit (more or less 6%) more effective at FSAA than the Radeon HD 7950 3GB, and capable of handling higher screen resolutions without slowing down too much. (explain)

Radeon R9 280X		27200 Mpixels/sec
Radeon HD 7950 3GB		25600 Mpixels/sec
	Difference: 1600 (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 maximum amount of information (measured in megabytes per second) that can be transferred across the external memory interface in a second. The number is calculated by multiplying the interface width by the speed of its memory. If it uses DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's 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 texture map elements (texels) that are processed per second. This is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.