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GeForce 8800 GTS (G92) vs Radeon HD 5770

Intro

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

Compare those specs to the Radeon HD 5770, which uses a 40 nm design. ATi has set the core frequency at 850 MHz. The GDDR5 memory works at a frequency of 1200 MHz on this specific card. It features 800(160x5) SPUs along with 40 Texture Address Units and 16 ROPs.

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

The Radeon HD 5770 should in theory perform a lot faster than the GeForce 8800 GTS (G92) in general. (explain)

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

Texel Rate

The GeForce 8800 GTS (G92) should be a lot (approximately 22%) better at texture filtering 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 is much (about 31%) faster with regards to AA than the GeForce 8800 GTS (G92), and also will be able to handle higher resolutions without slowing down too much. (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

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.

GeForce 8800 GTS (G92)

Amazon.com

Other US-based stores

Radeon HD 5770

Amazon.com

Other US-based stores

Specifications

Model GeForce 8800 GTS (G92) Radeon HD 5770
Manufacturer nVidia ATi
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 970 MHz (1940 MHz effective) 1200 MHz (4800 MHz effective)
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 maximum amount of information (measured in MB per second) that can be moved across the external memory interface in a second. The number is worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR type memory, it must be multiplied by 2 once 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, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This number is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to its 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 clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to 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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