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Radeon HD 7770 vs Radeon R7 370 2G

Intro

The Radeon HD 7770 uses a 28 nm design. AMD has clocked the core speed at 1000 MHz. The GDDR5 memory is set to run at a frequency of 1125 MHz on this particular card. It features 640 SPUs along with 40 TAUs and 16 Rasterization Operator Units.

Compare that to the Radeon R7 370 2G, which has core clock speeds of 975 MHz on the GPU, and 1400 MHz on the 2048 MB of GDDR5 RAM. It features 1024 SPUs as well as 64 Texture Address Units and 32 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 R7 370 2G 5582 points
Radeon HD 7770 3180 points
Difference: 2402 (76%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7770 80 Watts
Radeon R7 370 2G 110 Watts
Difference: 30 Watts (38%)

Memory Bandwidth

The Radeon R7 370 2G should in theory perform much faster than the Radeon HD 7770 in general. (explain)

Radeon R7 370 2G 179200 MB/sec
Radeon HD 7770 72000 MB/sec
Difference: 107200 (149%)

Texel Rate

The Radeon R7 370 2G is a lot (approximately 56%) more effective at anisotropic filtering than the Radeon HD 7770. (explain)

Radeon R7 370 2G 62400 Mtexels/sec
Radeon HD 7770 40000 Mtexels/sec
Difference: 22400 (56%)

Pixel Rate

The Radeon R7 370 2G should be much (approximately 95%) faster with regards to FSAA than the Radeon HD 7770, and able to handle higher screen resolutions without losing too much performance. (explain)

Radeon R7 370 2G 31200 Mpixels/sec
Radeon HD 7770 16000 Mpixels/sec
Difference: 15200 (95%)

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 370 2G

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 370 2G
Manufacturer AMD AMD
Year February 2012 June 2015
Code Name Cape Verde XT Trinidad
Memory 1024 MB 2048 MB
Core Speed 1000 MHz 975 MHz
Memory Speed 4500 MHz 5600 MHz
Power (Max TDP) 80 watts 110 watts
Bandwidth 72000 MB/sec 179200 MB/sec
Texel Rate 40000 Mtexels/sec 62400 Mtexels/sec
Pixel Rate 16000 Mpixels/sec 31200 Mpixels/sec
Unified Shaders 640 1024
Texture Mapping Units 40 64
Render Output Units 16 32
Bus Type GDDR5 GDDR5
Bus Width 128-bit 256-bit
Fab Process 28 nm 28 nm
Transistors 1500 million 2080 million
Bus PCIe 3.0 x16 PCIe 3.0 ×16
DirectX Version DirectX 11.1 DirectX 12.0
OpenGL Version OpenGL 4.2 OpenGL 4.5

Memory Bandwidth: Bandwidth is the max 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 interface width by its memory clock speed. If the card has DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can 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 - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

Hide Prices

Radeon HD 7770

Amazon.com

Check prices at:

Radeon R7 370 2G

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.

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