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GeForce 8800 GTS (G92) vs Radeon HD 5770

Intro

The GeForce 8800 GTS (G92) has a GPU core speed of 650 MHz, and the 512 MB of GDDR3 RAM is set to run at 970 MHz through a 256-bit bus. It also features 128 Stream Processors, 64 Texture Address Units, and 16 ROPs.

Compare all that to the Radeon HD 5770, which comes with GPU core speed of 850 MHz, and 1024 MB of GDDR5 RAM set to run at 1200 MHz through a 128-bit bus. It also features 800(160x5) SPUs, 40 Texture Address Units, and 16 Raster Operation Units.

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 is 24% quicker than the GeForce 8800 GTS (G92) in general, due to its greater 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) will be a lot (approximately 22%) better at 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 is much (about 31%) faster with regards to full screen anti-aliasing than the GeForce 8800 GTS (G92), and will be capable of handling higher resolutions while still performing well. (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

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

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 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: Bandwidth is the largest amount of data (counted in MB per second) that can be moved over the external memory interface within a second. The number is worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR RAM, the result should 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 AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This is worked out by multiplying the total number of texture units by the core clock speed of the chip. The higher this number, the better the graphics 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 can possibly write to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the the core clock speed. 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 many other factors, especially 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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