Radeon HD 6990 vs Radeon R7 370 2G

Intro

Compare all that to the Radeon R7 370 2G, which makes use of a 28 nm design. AMD has clocked the core speed at 975 MHz. The GDDR5 RAM is set to run at a speed of 1400 MHz on this specific card. It features 1024 SPUs along with 64 Texture Address Units and 32 Rasterization Operator 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

In theory, the Radeon HD 6990 will be 79% faster than the Radeon R7 370 2G overall, because of its greater bandwidth. (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 (approximately 155%) better at AF 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 (more or less 70%) better at FSAA than the Radeon R7 370 2G, and also will be able to handle higher screen resolutions without slowing down too much. (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 max amount of data (measured in MB per second) that can be transported across the external memory interface in one second. It's calculated by multiplying the interface width by its memory speed. If the card has DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, 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 can be processed per second. This is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The better this number, the better the graphics 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 number of pixels that the graphics chip can possibly record to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.