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GeForce GTX 460 vs Radeon HD 7770


Intro

The GeForce GTX 460 has core speeds of 675 MHz on the GPU, and 900 MHz on the 768 MB of GDDR5 memory. It features 336 SPUs along with 56 TAUs and 24 ROPs.

Compare all that to the Radeon HD 7770, which uses a 28 nm design. AMD has clocked the core frequency at 1000 MHz. The GDDR5 RAM works at a speed of 1125 MHz on this model. It features 640 SPUs as well as 40 TAUs and 16 Rasterization Operator Units.

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Radeon HD 7770 3180 points
GeForce GTX 460 2560 points
Difference: 620 (24%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7770 80 Watts
GeForce GTX 460 150 Watts
Difference: 70 Watts (88%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 460 should be a small bit faster than the Radeon HD 7770 overall. (explain)

GeForce GTX 460 86400 MB/sec
Radeon HD 7770 72000 MB/sec
Difference: 14400 (20%)

Texel Rate

The Radeon HD 7770 will be just a bit (approximately 6%) faster with regards to AF than the GeForce GTX 460. (explain)

Radeon HD 7770 40000 Mtexels/sec
GeForce GTX 460 37800 Mtexels/sec
Difference: 2200 (6%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 460 is the winner, though not by far. (explain)

GeForce GTX 460 16200 Mpixels/sec
Radeon HD 7770 16000 Mpixels/sec
Difference: 200 (1%)

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 7770

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 7770
Manufacturer nVidia AMD
Year July 2010 February 2012
Code Name GF104 Cape Verde XT
Memory 768 MB 1024 MB
Core Speed 675 MHz 1000 MHz
Memory Speed 3600 MHz 4500 MHz
Power (Max TDP) 150 watts 80 watts
Bandwidth 86400 MB/sec 72000 MB/sec
Texel Rate 37800 Mtexels/sec 40000 Mtexels/sec
Pixel Rate 16200 Mpixels/sec 16000 Mpixels/sec
Unified Shaders 336 640
Texture Mapping Units 56 40
Render Output Units 24 16
Bus Type GDDR5 GDDR5
Bus Width 192-bit 128-bit
Fab Process 40 nm 28 nm
Transistors 1950 million 1500 million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 11.1
OpenGL Version OpenGL 4.1 OpenGL 4.2

Memory Bandwidth: Memory bandwidth is the largest amount of information (measured in MB per second) that can be moved over the external memory interface in a second. It's calculated by multiplying the interface width by the speed of its memory. In the case of DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 460

Amazon.com

Radeon HD 7770

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 7770”
gtx 650 to dominate hd7770 , HD 6850 and gtx460 - Page 2 says:

[...] Without a doubt. hd7770 and gtx460 hmmm........7770 new tech but it does give more fps in bf3 GeForce GTX 460 vs Radeon HD 7770 – Performance Comparison Benchmarks @ Hardware Compare though hwcompare is a bit inaccurate since it doesnot mention how DX9 TO 11 can change performance [...]

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