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GeForce GTX 460 vs Radeon HD 5770


Intro

The GeForce GTX 460 features a clock frequency of 675 MHz and a GDDR5 memory speed of 900 MHz. It also features a 192-bit bus, and uses a 40 nm design. It features 336 SPUs, 56 TAUs, and 24 Raster Operation Units.

Compare those specifications to the Radeon HD 5770, which makes use of a 40 nm design. AMD has clocked the core speed at 850 MHz. The GDDR5 RAM is set to run at a speed of 1200 MHz on this particular card. It features 800(160x5) SPUs as well as 40 TAUs and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5770 108 Watts
GeForce GTX 460 150 Watts
Difference: 42 Watts (39%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 460 should theoretically be a bit superior to the Radeon HD 5770 overall. (explain)

GeForce GTX 460 86400 MB/sec
Radeon HD 5770 76800 MB/sec
Difference: 9600 (13%)

Texel Rate

The GeForce GTX 460 is a small bit (more or less 11%) more effective at AF than the Radeon HD 5770. (explain)

GeForce GTX 460 37800 Mtexels/sec
Radeon HD 5770 34000 Mtexels/sec
Difference: 3800 (11%)

Pixel Rate

The GeForce GTX 460 will be a little bit (about 19%) better at anti-aliasing than the Radeon HD 5770, and also will be able to handle higher resolutions better. (explain)

GeForce GTX 460 16200 Mpixels/sec
Radeon HD 5770 13600 Mpixels/sec
Difference: 2600 (19%)

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

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GeForce GTX 460

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

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Model GeForce GTX 460 Radeon HD 5770
Manufacturer nVidia AMD
Year July 2010 October 13, 2009
Code Name GF104 Juniper XT
Memory 768 MB 1024 MB
Core Speed 675 MHz 850 MHz
Memory Speed 3600 MHz 4800 MHz
Power (Max TDP) 150 watts 108 watts
Bandwidth 86400 MB/sec 76800 MB/sec
Texel Rate 37800 Mtexels/sec 34000 Mtexels/sec
Pixel Rate 16200 Mpixels/sec 13600 Mpixels/sec
Unified Shaders 336 800(160x5)
Texture Mapping Units 56 40
Render Output Units 24 16
Bus Type GDDR5 GDDR5
Bus Width 192-bit 128-bit
Fab Process 40 nm 40 nm
Transistors 1950 million 1040 million
Bus PCIe x16 PCIe 2.1 x16
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 4.1 OpenGL 3.2

Memory Bandwidth: Memory bandwidth is the largest amount of information (counted in MB per second) that can be moved over the external memory interface within a second. The number is calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better 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 in one second. This is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 460

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.

Comments

One Response to “GeForce GTX 460 vs Radeon HD 5770”
New Graphics Card (£100ish budget) - HEXUS.community discussion forums says:

[...] intensive games (eg Crysis) but realistically speaking it should do you very well. Comparison: http://www.hwcompare.com/8140/geforc...adeon-hd-5770/ Note that the 5770 runs at a smooth 30fps @ 1920x1200 on Battlefield Bad Company 2 on High with [...]

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