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GeForce 8800 GTS (G92) vs Radeon HD 5770

Intro

The GeForce 8800 GTS (G92) features core clock speeds of 650 MHz on the GPU, and 970 MHz on the 512 MB of GDDR3 RAM. It features 128 SPUs as well as 64 Texture Address Units and 16 Rasterization Operator Units.

Compare that 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 RAM. It features 800(160x5) SPUs as well as 40 TAUs and 16 ROPs.

Display Graphs

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F.E.A.R. 2

Settings: Maximum Quality
AA: 4x
AF: 8x
Resolution: 1920x1200
Test Machine: Unknown (Source)
Radeon HD 5770 74 FPS
GeForce 8800 GTS (G92) 42 FPS
Difference: 32 FPS (76%)

Fallout 3

Settings: Very High Quality
AA: 8x
AF: 16x
Resolution: 1920x1200
Test Machine: Tom's Hardware Test Machine (Source)
Radeon HD 5770 54 FPS
GeForce 8800 GTS (G92) 36 FPS
Difference: 18 FPS (50%)

Fallout 3

Settings: Very High Quality
AA: 4x
AF: 8x
Resolution: 1680x1050
Test Machine: Tom's Hardware Charts Test Rig (Source)
Radeon HD 5770 68 FPS
GeForce 8800 GTS (G92) 59 FPS
Difference: 9 FPS (15%)

Left4Dead

Settings: Very High Quality
AA: 8x
AF: 16x
Resolution: 1920x1200
Test Machine: Tom's Hardware Test Machine (Source)
Radeon HD 5770 66 FPS
GeForce 8800 GTS (G92) 40 FPS
Difference: 26 FPS (65%)

Left4Dead

Settings: Very High Quality
AA: 4x
AF: 8x
Resolution: 1920x1200
Test Machine: Tom's Hardware Charts Test Rig (Source)
Radeon HD 5770 70 FPS
GeForce 8800 GTS (G92) 51 FPS
Difference: 19 FPS (37%)

Tom Clancy's Endwar

Settings: High Quality
AA: 4x
AF: 8x
Resolution: 1920x1200
Test Machine: Tom's Hardware Test Machine (Source)
Radeon HD 5770 28 FPS
GeForce 8800 GTS (G92) 17 FPS
Difference: 11 FPS (65%)

Tom Clancy's H.A.W.X

Settings: High Quality
AA: 4x
AF: 8x
Resolution: 1680x1050
Test Machine: Tom's Hardware Charts Test Rig (Source)
Radeon HD 5770 37 FPS
GeForce 8800 GTS (G92) 35 FPS
Difference: 2 FPS (6%)

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 117 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 397 FPS
GeForce 8800 GTS (G92) 280 FPS
Difference: 117 FPS (42%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5770 108 Watts
GeForce 8800 GTS (G92) 135 Watts
Difference: 27 Watts (25%)

Memory Bandwidth

In theory, the Radeon HD 5770 will be 24% quicker than the GeForce 8800 GTS (G92) in general, because of its higher data rate. (explain)

Radeon HD 5770 76800 MB/sec
GeForce 8800 GTS (G92) 62080 MB/sec
Difference: 14720 (24%)

Texel Rate

The GeForce 8800 GTS (G92) is much (about 22%) faster with regards to AF than the Radeon HD 5770. (explain)

GeForce 8800 GTS (G92) 41600 Mtexels/sec
Radeon HD 5770 34000 Mtexels/sec
Difference: 7600 (22%)

Pixel Rate

The Radeon HD 5770 should be much (more or less 31%) faster with regards to FSAA than the GeForce 8800 GTS (G92), and able to handle higher screen resolutions without losing too much performance. (explain)

Radeon HD 5770 13600 Mpixels/sec
GeForce 8800 GTS (G92) 10400 Mpixels/sec
Difference: 3200 (31%)

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

Display Prices

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GeForce 8800 GTS (G92)

Amazon.com

Radeon HD 5770

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

Display Specifications

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Model GeForce 8800 GTS (G92) Radeon HD 5770
Manufacturer nVidia AMD
Year Dec 2007 October 13, 2009
Code Name G92 Juniper XT
Fab Process 65 nm 40 nm
Bus PCIe x16 2.0 PCIe 2.1 x16
Memory 512 MB 1024 MB
Core Speed 650 MHz 850 MHz
Shader Speed 1625 MHz (N/A) MHz
Memory Speed 1940 MHz 4800 MHz
Unified Shaders 128 800(160x5)
Texture Mapping Units 64 40
Render Output Units 16 16
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) 135 watts 108 watts
Shader Model 4.0 5.0
Bandwidth 62080 MB/sec 76800 MB/sec
Texel Rate 41600 Mtexels/sec 34000 Mtexels/sec
Pixel Rate 10400 Mpixels/sec 13600 Mpixels/sec

Memory Bandwidth: Memory bandwidth is the max amount of information (counted in megabytes per second) that can be transferred over the external memory interface within a second. It's calculated by multiplying the card's interface width by its memory clock speed. In the case of DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR 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 amount of texture units by the core clock speed of the chip. The higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Comments

One Response to “GeForce 8800 GTS (G92) vs Radeon HD 5770”

[...] would be an upgrade, yes. Here's a comparison: http://www.hwcompare.com/1203/geforc...adeon-hd-5770/ __________________ MoBo: AsRock R2.0 PT880 Ultra CPU: Intel Pentium Wolfdale Dual-Core E6800 [...]

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