Radeon HD 6990 vs Radeon R7 370 2G

Intro

Compare those specifications to the Radeon R7 370 2G, which comes with GPU core speed of 975 MHz, and 2048 MB of GDDR5 RAM running at 1400 MHz through a 256-bit bus. It also is made up of 1024 SPUs, 64 Texture Address Units, and 32 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 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 theoretically be a lot faster than the Radeon R7 370 2G overall. (explain)

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

Texel Rate

The Radeon HD 6990 will be much (more or less 155%) better at anisotropic 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 should be a lot (more or less 70%) more effective at full screen anti-aliasing than the Radeon R7 370 2G, and also will be able to handle higher resolutions better. (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 maximum amount of information (counted in MB per second) that can be transferred across the external memory interface in a second. It's worked out by multiplying the card's bus width by the speed of its memory. In the case of DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This figure is calculated by multiplying the total amount of texture units by the core speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of 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 rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.