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GeForce GTX 1070 vs Radeon HD 7770

Intro

The GeForce GTX 1070 comes with a clock frequency of 1506 MHz and a GDDR5 memory frequency of 2000 MHz. It also makes use of a 256-bit bus, and makes use of a 16 nm design. It features 1920 SPUs, 120 TAUs, and 64 ROPs.

Compare all of that to the Radeon HD 7770, which has core speeds of 1000 MHz on the GPU, and 1125 MHz on the 1024 MB of GDDR5 RAM. It features 640 SPUs along with 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

GeForce GTX 1070 18174 points
Radeon HD 7770 3180 points
Difference: 14994 (472%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7770 80 Watts
GeForce GTX 1070 150 Watts
Difference: 70 Watts (88%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 1070 will be 264% quicker than the Radeon HD 7770 in general, due to its greater data rate. (explain)

GeForce GTX 1070 262144 MB/sec
Radeon HD 7770 72000 MB/sec
Difference: 190144 (264%)

Texel Rate

The GeForce GTX 1070 will be quite a bit (about 352%) better at anisotropic filtering than the Radeon HD 7770. (explain)

GeForce GTX 1070 180720 Mtexels/sec
Radeon HD 7770 40000 Mtexels/sec
Difference: 140720 (352%)

Pixel Rate

The GeForce GTX 1070 will be quite a bit (about 502%) faster with regards to anti-aliasing than the Radeon HD 7770, and should be capable of handling higher screen resolutions more effectively. (explain)

GeForce GTX 1070 96384 Mpixels/sec
Radeon HD 7770 16000 Mpixels/sec
Difference: 80384 (502%)

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 1070

Amazon.com

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Radeon HD 7770

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 GeForce GTX 1070 Radeon HD 7770
Manufacturer nVidia AMD
Year June 2016 February 2012
Code Name GP104-200 Cape Verde XT
Memory 8192 MB 1024 MB
Core Speed 1506 MHz 1000 MHz
Memory Speed 8000 MHz 4500 MHz
Power (Max TDP) 150 watts 80 watts
Bandwidth 262144 MB/sec 72000 MB/sec
Texel Rate 180720 Mtexels/sec 40000 Mtexels/sec
Pixel Rate 96384 Mpixels/sec 16000 Mpixels/sec
Unified Shaders 1920 640
Texture Mapping Units 120 40
Render Output Units 64 16
Bus Type GDDR5 GDDR5
Bus Width 256-bit 128-bit
Fab Process 16 nm 28 nm
Transistors 7200 million 1500 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 12.0 DirectX 11.1
OpenGL Version OpenGL 4.5 OpenGL 4.2

Memory Bandwidth: Bandwidth is the max amount of information (measured in megabytes per second) that can be moved across the external memory interface in a second. It's calculated by multiplying the card's interface width by its memory speed. In the case of DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen 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 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 amount of pixels that the graphics chip could possibly write 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 clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, most notably 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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GeForce GTX 1070

Amazon.com

Check prices at:

Radeon HD 7770

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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