Radeon HD 6990 vs Radeon R7 370 2G

Intro

Compare those specifications to the Radeon R7 370 2G, which has a clock frequency of 975 MHz and a GDDR5 memory speed of 1400 MHz. It also features a 256-bit bus, and uses a 28 nm design. It is comprised of 1024 SPUs, 64 Texture Address Units, and 32 Raster Operation Units.

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 HD 6990		5820 points
Radeon R7 370 2G		5582 points
	Difference: 238 (4%)

Ethereum Mining Hash Rate

Radeon HD 6990		24 Mh/s
Radeon R7 370 2G		15 Mh/s
	Difference: 9 (60%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 370 2G		110 Watts
Radeon HD 6990		375 Watts
	Difference: 265 Watts (241%)

Memory Bandwidth

The Radeon HD 6990 should in theory perform much faster than the Radeon R7 370 2G in general. (explain)

Radeon HD 6990		320000 MB/sec
Radeon R7 370 2G		179200 MB/sec
	Difference: 140800 (79%)

Texel Rate

The Radeon HD 6990 is a lot (approximately 155%) better at texture filtering than the Radeon R7 370 2G. (explain)

Radeon HD 6990		159360 Mtexels/sec
Radeon R7 370 2G		62400 Mtexels/sec
	Difference: 96960 (155%)

Pixel Rate

The Radeon HD 6990 will be much (approximately 70%) better at AA than the Radeon R7 370 2G, and also capable of handling higher resolutions without losing too much performance. (explain)

Radeon HD 6990		53120 Mpixels/sec
Radeon R7 370 2G		31200 Mpixels/sec
	Difference: 21920 (70%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the largest amount of information (counted in megabytes per second) that can be moved past the external memory interface within a second. The number is calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This is worked out by multiplying the total texture units by the core clock 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 processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.