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Radeon HD 6970 vs Radeon HD 7850


Intro

The Radeon HD 6970 uses a 40 nm design. AMD has set the core speed at 880 MHz. The GDDR5 memory works at a frequency of 1375 MHz on this specific card. It features 1536 SPUs along with 96 TAUs and 32 Rasterization Operator Units.

Compare all of that to the Radeon HD 7850, which has a core clock speed of 860 MHz and a GDDR5 memory frequency of 1200 MHz. It also makes use of a 256-bit memory bus, and uses a 28 nm design. It is made up of 1024 SPUs, 64 TAUs, and 32 Raster Operation Units.

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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 7850 5200 points
Radeon HD 6970 3470 points
Difference: 1730 (50%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7850 130 Watts
Radeon HD 6970 250 Watts
Difference: 120 Watts (92%)

Memory Bandwidth

The Radeon HD 6970 should theoretically perform a little bit faster than the Radeon HD 7850 overall. (explain)

Radeon HD 6970 176000 MB/sec
Radeon HD 7850 153600 MB/sec
Difference: 22400 (15%)

Texel Rate

The Radeon HD 6970 should be much (more or less 53%) faster with regards to texture filtering than the Radeon HD 7850. (explain)

Radeon HD 6970 84480 Mtexels/sec
Radeon HD 7850 55040 Mtexels/sec
Difference: 29440 (53%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon HD 6970 is the winner, though only just barely. (explain)

Radeon HD 6970 28160 Mpixels/sec
Radeon HD 7850 27520 Mpixels/sec
Difference: 640 (2%)

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

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Radeon HD 6970

Amazon.com

Radeon HD 7850

Amazon.com

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model Radeon HD 6970 Radeon HD 7850
Manufacturer AMD AMD
Year December 2010 March 2012
Code Name Cayman XT Pitcairn Pro
Memory 2048 MB 2048 MB
Core Speed 880 MHz 860 MHz
Memory Speed 5500 MHz 4800 MHz
Power (Max TDP) 250 watts 130 watts
Bandwidth 176000 MB/sec 153600 MB/sec
Texel Rate 84480 Mtexels/sec 55040 Mtexels/sec
Pixel Rate 28160 Mpixels/sec 27520 Mpixels/sec
Unified Shaders 1536 1024
Texture Mapping Units 96 64
Render Output Units 32 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit
Fab Process 40 nm 28 nm
Transistors 2640 million 2800 million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 11.1
OpenGL Version OpenGL 4.1 OpenGL 4.2

Memory Bandwidth: Memory bandwidth is the largest amount of information (counted in megabytes per second) that can be transported over the external memory interface in one second. It's worked out by multiplying the card's interface width by its memory clock speed. If the card has DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This number is worked out by multiplying the total texture units by the core speed of the chip. The higher this number, the better the 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 video card could possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs 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 rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

Hide Prices

Radeon HD 6970

Amazon.com

Radeon HD 7850

Amazon.com

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Comments

One Response to “Radeon HD 6970 vs Radeon HD 7850”
Anonymous says:

[...] viel von der Leistung her, lediglich braucht die 7850 weniger Strom und hat den neueren Chip. Radeon HD 6970 vs Radeon HD 7850 – Performance Comparison Benchmarks @ Hardware Compare Verkaufe GW2 Acc mit Lvl80 Guardian & 5G (gold/orange equippt) Hardware: Bitfenix Prodigy [...]

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