GeForce GTX 1070 vs Radeon HD 7770

Intro

Compare those specs to the Radeon HD 7770, which uses a 28 nm design. AMD has set the core frequency at 1000 MHz. The GDDR5 memory is set to run at a speed of 1125 MHz on this specific model. It features 640 SPUs as well as 40 TAUs and 16 Rasterization Operator Units.

Display Graphs

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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 should be 264% quicker than the Radeon HD 7770 overall, because of 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 is much (approximately 352%) faster with regards to texture 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 should be much (approximately 502%) more effective at AA than the Radeon HD 7770, and also will be able to handle higher screen resolutions while still performing well. (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

Specifications

Memory Bandwidth: Bandwidth is the largest amount of data (counted in megabytes per second) that can be transported past the external memory interface in one second. It is calculated by multiplying the bus width by the speed of its memory. If it uses DDR memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster 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 can be processed per second. This is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

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