 |
 |
GeForce GTX 460 vs Radeon HD 7770
Intro
The GeForce GTX 460 comes with a core clock frequency of 675 MHz and a GDDR5 memory frequency of 900 MHz. It also uses a 192-bit memory bus, and makes use of a 40 nm design. It is comprised of 336 SPUs, 56 TAUs, and 24 Raster Operation Units.Compare all of that to the Radeon HD 7770, which comes with GPU core speed of 1000 MHz, and 1024 MB of GDDR5 memory set to run at 1125 MHz through a 128-bit bus. It also is comprised of 640 SPUs, 40 Texture Address Units, and 16 Raster Operation Units.
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 |
|
2557 points |
|
|
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 7770 |
|
80 Watts |
| GeForce GTX 460 |
|
150 Watts |
|
|
Memory Bandwidth
Performance-wise, the GeForce GTX 460 should in theory be a bit superior to the Radeon HD 7770 overall. (explain)
| GeForce GTX 460 |
|
86400 MB/sec |
| Radeon HD 7770 |
|
72000 MB/sec |
|
|
Texel Rate
The Radeon HD 7770 will be a small bit (about 6%) more effective at texture filtering than the GeForce GTX 460. (explain)| Radeon HD 7770 |
|
40000 Mtexels/sec |
| GeForce GTX 460 |
|
37800 Mtexels/sec |
|
|
Pixel Rate
The GeForce GTX 460 is a little bit (about 1%) better at FSAA than the Radeon HD 7770, and also capable of handling higher resolutions more effectively. (explain)| GeForce GTX 460 |
|
16200 Mpixels/sec |
| Radeon HD 7770 |
|
16000 Mpixels/sec |
|
|
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 GTX 460Amazon.com
Check prices at:
|
Radeon HD 7770Amazon.com
Check prices at:
|
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 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 (counted in MB per second) that can be transferred past the external memory interface within a second. It's worked out by multiplying the interface width by its memory speed. In the case of DDR memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better 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 amount of texture map elements (texels) that are applied per second. This number is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The better this number, the better the video 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 card can possibly write to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.
GeForce GTX 460Amazon.com
Check prices at:
|
Radeon HD 7770Amazon.com
Check prices at:
|
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”[...] 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 [...]