Radeon HD 5770 vs Radeon R7 370 4G

Intro

Compare those specifications to the Radeon R7 370 4G, which uses a 28 nm design. AMD has clocked the core frequency at 975 MHz. The GDDR5 RAM runs at a frequency of 1400 MHz on this particular model. It features 1024 SPUs as well as 64 TAUs and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5770		108 Watts
Radeon R7 370 4G		110 Watts
	Difference: 2 Watts (2%)

Memory Bandwidth

The Radeon R7 370 4G should theoretically perform a lot faster than the Radeon HD 5770 overall. (explain)

Radeon R7 370 4G		179200 MB/sec
Radeon HD 5770		76800 MB/sec
	Difference: 102400 (133%)

Texel Rate

The Radeon R7 370 4G will be much (about 84%) faster with regards to texture filtering than the Radeon HD 5770. (explain)

Radeon R7 370 4G		62400 Mtexels/sec
Radeon HD 5770		34000 Mtexels/sec
	Difference: 28400 (84%)

Pixel Rate

The Radeon R7 370 4G should be much (about 129%) faster with regards to full screen anti-aliasing than the Radeon HD 5770, and also will be able to handle higher resolutions more effectively. (explain)

Radeon R7 370 4G		31200 Mpixels/sec
Radeon HD 5770		13600 Mpixels/sec
	Difference: 17600 (129%)

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: Memory bandwidth is the largest amount of data (in units of MB per second) that can be moved across the external memory interface in a second. The number is worked out by multiplying the card's bus width by the speed of its memory. If it uses DDR RAM, it should 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 anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This number is worked out by multiplying the total texture units by the core clock speed of the chip. The higher 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 a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.