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Radeon HD 5670 vs Radeon HD 5770

Intro

The Radeon HD 5670 has a GPU clock speed of 775 MHz, and the 1024 MB of GDDR5 RAM is set to run at 1000 MHz through a 128-bit bus. It also is made up of 400(80x5) Stream Processors, 20 Texture Address Units, and 8 ROPs.

Compare those specifications to the Radeon HD 5770, which comes with clock speeds of 850 MHz on the GPU, and 1200 MHz on the 1024 MB of GDDR5 memory. It features 800(160x5) SPUs as well as 40 TAUs and 16 ROPs.

Avatar

Settings: Ultra High Quality
AA: 8x
AF: none
Resolution: 1920x1200
Test Machine: Tom's Hardware Test Machine (Source)
Radeon HD 5770 37 FPS
Radeon HD 5670 25 FPS
Difference: 12 FPS (48%)

Battlefield Bad Company 2

Settings: High Quality
AA: 4x
AF: 8x
Resolution: 1920x1200
Test Machine: Tom's Hardware Test Machine (Source)
Radeon HD 5770 30 FPS
Radeon HD 5670 19 FPS
Difference: 11 FPS (58%)

Left4Dead 2

Settings: Very High
AA: 8x
AF: 16x
Resolution: 1920x1200
Test Machine: Tom's Hardware Test Machine (Source)
Radeon HD 5770 70 FPS
Radeon HD 5670 49 FPS
Difference: 21 FPS (43%)

Mass Effect 2

Settings: Maximum Quality
AA: none
AF: 8x
Resolution: 1920x1200
Test Machine: Tom's Hardware Test Machine (Source)
Radeon HD 5770 87 FPS
Radeon HD 5670 57 FPS
Difference: 30 FPS (53%)

Supreme Commander 2

Settings: High
AA: 8x
AF: 16x
Resolution: 1920x1200
Test Machine: Tom's Hardware Test Machine (Source)
Radeon HD 5770 62 FPS
Radeon HD 5670 37 FPS
Difference: 25 FPS (68%)

Radeon HD 5770 wins

(Based entirely on the benchmarks listed above)

When combining all game benchmark scores on this page together, the Radeon HD 5770 wins overall, by 99 FPS. Please note that we do not have the results of every benchmark ever done for these cards, so the results may differ wildly in different games.

Radeon HD 5770 286 FPS
Radeon HD 5670 187 FPS
Difference: 99 FPS (53%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5670 61 Watts
Radeon HD 5770 108 Watts
Difference: 47 Watts (77%)

Memory Bandwidth

The Radeon HD 5770 should theoretically be a small bit faster than the Radeon HD 5670 overall. (explain)

Radeon HD 5770 76800 MB/sec
Radeon HD 5670 64000 MB/sec
Difference: 12800 (20%)

Texel Rate

The Radeon HD 5770 should be much (approximately 119%) faster with regards to anisotropic filtering than the Radeon HD 5670. (explain)

Radeon HD 5770 34000 Mtexels/sec
Radeon HD 5670 15500 Mtexels/sec
Difference: 18500 (119%)

Pixel Rate

The Radeon HD 5770 should be a lot (about 119%) better at FSAA than the Radeon HD 5670, and able to handle higher screen resolutions more effectively. (explain)

Radeon HD 5770 13600 Mpixels/sec
Radeon HD 5670 6200 Mpixels/sec
Difference: 7400 (119%)

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

Please note that the price comparisons are based on search keywords, and might not be the exact same card listed on this page. We have no control over the accuracy of their search results.

Radeon HD 5670

Amazon.com

Other US-based stores

Radeon HD 5770

Amazon.com

Other US-based stores

Specifications

Model Radeon HD 5670 Radeon HD 5770
Manufacturer ATi ATi
Year January 14, 2010 October 13, 2009
Code Name Redwood XT Juniper XT
Fab Process 40 nm 40 nm
Bus PCIe 2.1 x16 PCIe 2.1 x16
Memory 1024 MB 1024 MB
Core Speed 775 MHz 850 MHz
Shader Speed N/A MHz (N/A) MHz
Memory Speed 1000 MHz (4000 MHz effective) 1200 MHz (4800 MHz effective)
Unified Shaders 400(80x5) 800(160x5)
Texture Mapping Units 20 40
Render Output Units 8 16
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 3.2 OpenGL 3.2
Power (Max TDP) 61 watts 108 watts
Shader Model 5.0 5.0
Bandwidth 64000 MB/sec 76800 MB/sec
Texel Rate 15500 Mtexels/sec 34000 Mtexels/sec
Pixel Rate 6200 Mpixels/sec 13600 Mpixels/sec

Memory Bandwidth: Memory bandwidth is the maximum amount of data (measured in megabytes per second) that can be transferred over the external memory interface in a second. It is worked out by multiplying the interface width by the speed of its memory. In the case of DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better 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 texture map elements (texels) that are applied per second. This is calculated by multiplying the total texture units by the core clock speed of the chip. The higher the texel rate, the better the card will be at 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 that the graphics chip could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the the core clock speed. 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 is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

Comments

5 Responses to “Radeon HD 5670 vs Radeon HD 5770”
Grant says:
5770 FTW!
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