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Radeon HD 7770 vs Radeon R7 260X

Intro

The Radeon HD 7770 has core clock speeds of 1000 MHz on the GPU, and 1125 MHz on the 1024 MB of GDDR5 RAM. It features 640 SPUs as well as 40 TAUs and 16 ROPs.

Compare those specs to the Radeon R7 260X, which features core clock speeds of 1100 MHz on the GPU, and 1625 MHz on the 2048 MB of GDDR5 memory. It features 896 SPUs as well as 56 TAUs and 16 ROPs.

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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 R7 260X 4381 points
Radeon HD 7770 3180 points
Difference: 1201 (38%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7770 80 Watts
Radeon R7 260X 115 Watts
Difference: 35 Watts (44%)

Memory Bandwidth

The Radeon R7 260X should theoretically perform a lot faster than the Radeon HD 7770 in general. (explain)

Radeon R7 260X 104000 MB/sec
Radeon HD 7770 72000 MB/sec
Difference: 32000 (44%)

Texel Rate

The Radeon R7 260X is much (about 54%) faster with regards to anisotropic filtering than the Radeon HD 7770. (explain)

Radeon R7 260X 61600 Mtexels/sec
Radeon HD 7770 40000 Mtexels/sec
Difference: 21600 (54%)

Pixel Rate

The Radeon R7 260X will be just a bit (about 10%) more effective at FSAA than the Radeon HD 7770, and should be capable of handling higher resolutions more effectively. (explain)

Radeon R7 260X 17600 Mpixels/sec
Radeon HD 7770 16000 Mpixels/sec
Difference: 1600 (10%)

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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Radeon HD 7770

Amazon.com

Check prices at:

Radeon R7 260X

Amazon.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

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Model Radeon HD 7770 Radeon R7 260X
Manufacturer AMD AMD
Year February 2012 October 2013
Code Name Cape Verde XT Bonaire XTX
Memory 1024 MB 2048 MB
Core Speed 1000 MHz 1100 MHz
Memory Speed 4500 MHz 6500 MHz
Power (Max TDP) 80 watts 115 watts
Bandwidth 72000 MB/sec 104000 MB/sec
Texel Rate 40000 Mtexels/sec 61600 Mtexels/sec
Pixel Rate 16000 Mpixels/sec 17600 Mpixels/sec
Unified Shaders 640 896
Texture Mapping Units 40 56
Render Output Units 16 16
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 28 nm 28 nm
Transistors 1500 million 2080 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.1 DirectX 11.2
OpenGL Version OpenGL 4.2 OpenGL 4.3

Memory Bandwidth: Bandwidth is the max amount of information (counted in MB per second) that can be moved past the external memory interface in one second. It is worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

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Radeon HD 7770

Amazon.com

Check prices at:

Radeon R7 260X

Amazon.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

2 Responses to “Radeon HD 7770 vs Radeon R7 260X”
robert says:

Radeon R7 260X 1gb
Radeon HD 7770 2gb

🙂

Dek says:

^So.....................?

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