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GeForce 8800 GT 512MB vs Radeon HD 5670

Intro

The GeForce 8800 GT 512MB has a core clock speed of 600 MHz and a GDDR3 memory frequency of 900 MHz. It also makes use of a 256-bit bus, and uses a 65 nm design. It is comprised of 112 SPUs, 56 TAUs, and 16 ROPs.

Compare all that to the Radeon HD 5670, which features GPU clock speed of 775 MHz, and 1024 MB of GDDR5 memory running at 1000 MHz through a 128-bit bus. It also is comprised of 400(80x5) Stream Processors, 20 TAUs, and 8 ROPs.

Battlefield Bad Company 2

Settings: High Quality
AA: 4x
AF: 8x
Resolution: 1920x1200
Test Machine: Tom's Hardware Test Machine (Source)
GeForce 8800 GT 512MB 21 FPS
Radeon HD 5670 19 FPS
Difference: 2 FPS (11%)

Left4Dead 2

Settings: Very High
AA: 8x
AF: 16x
Resolution: 1920x1200
Test Machine: Tom's Hardware Test Machine (Source)
Radeon HD 5670 49 FPS
GeForce 8800 GT 512MB 46 FPS
Difference: 3 FPS (7%)

Mass Effect 2

Settings: Maximum Quality
AA: none
AF: 8x
Resolution: 1920x1200
Test Machine: Tom's Hardware Test Machine (Source)
GeForce 8800 GT 512MB 60 FPS
Radeon HD 5670 57 FPS
Difference: 3 FPS (5%)

Supreme Commander 2

Settings: High
AA: 8x
AF: 16x
Resolution: 1920x1200
Test Machine: Tom's Hardware Test Machine (Source)
Radeon HD 5670 37 FPS
GeForce 8800 GT 512MB 28 FPS
Difference: 9 FPS (32%)

Radeon HD 5670 wins

(Based entirely on the benchmarks listed above)

When combining all game benchmark scores on this page together, the Radeon HD 5670 wins overall, by 7 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 5670 162 FPS
GeForce 8800 GT 512MB 155 FPS
Difference: 7 FPS (5%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5670 61 Watts
GeForce 8800 GT 512MB 105 Watts
Difference: 44 Watts (72%)

Memory Bandwidth

In theory, the Radeon HD 5670 should perform a small bit faster than the GeForce 8800 GT 512MB overall. (explain)

Radeon HD 5670 64000 MB/sec
GeForce 8800 GT 512MB 57600 MB/sec
Difference: 6400 (11%)

Texel Rate

The GeForce 8800 GT 512MB should be much (approximately 117%) more effective at AF than the Radeon HD 5670. (explain)

GeForce 8800 GT 512MB 33600 Mtexels/sec
Radeon HD 5670 15500 Mtexels/sec
Difference: 18100 (117%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce 8800 GT 512MB is a better choice, by a large margin. (explain)

GeForce 8800 GT 512MB 9600 Mpixels/sec
Radeon HD 5670 6200 Mpixels/sec
Difference: 3400 (55%)

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

GeForce 8800 GT 512MB

Amazon.com

Radeon HD 5670

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

Model GeForce 8800 GT 512MB Radeon HD 5670
Manufacturer nVidia AMD
Year Oct 2007 January 14, 2010
Code Name G92 Redwood XT
Fab Process 65 nm 40 nm
Bus PCIe x16 2.0 PCIe 2.1 x16
Memory 512 MB 1024 MB
Core Speed 600 MHz 775 MHz
Shader Speed 1500 MHz (N/A) MHz
Memory Speed 900 MHz (1800 MHz effective) 1000 MHz (4000 MHz effective)
Unified Shaders 112 400(80x5)
Texture Mapping Units 56 20
Render Output Units 16 8
Bus Type GDDR3 GDDR5
Bus Width 256-bit 128-bit
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 3.2
Power (Max TDP) 105 watts 61 watts
Shader Model 4.0 5.0
Bandwidth 57600 MB/sec 64000 MB/sec
Texel Rate 33600 Mtexels/sec 15500 Mtexels/sec
Pixel Rate 9600 Mpixels/sec 6200 Mpixels/sec

Memory Bandwidth: Memory bandwidth is the maximum amount of information (in units of MB per second) that can be moved across the external memory interface in one second. The number is worked out by multiplying the interface width by its memory clock speed. If it uses DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, 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 per second. This is worked out by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.

Comments

One Response to “GeForce 8800 GT 512MB vs Radeon HD 5670”
[...] 49 Originally Posted by Ali Man Try to increase your budget a bit and get a 5670. bro where in the world is 5670 better then 8800gt or 4850??? not in texel rate not in the pixel rate, just bandwith wo bhi by small value GeForce 8800 GT 512MB vs Radeon HD 5670 – Performance Comparison Benchmarks @ Hardware Compare [...]

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