Radeon HD 7870 XT vs Radeon R7 370 4G

Intro

Compare those specifications to the Radeon R7 370 4G, which makes use of a 28 nm design. AMD has clocked the core frequency at 975 MHz. The GDDR5 RAM is set to run at a speed of 1400 MHz on this particular model. It features 1024 SPUs as well as 64 TAUs and 32 ROPs.

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.

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Radeon R7 370 4G		17 Mh/s
Radeon HD 7870 XT		15 Mh/s
	Difference: 2 (13%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 370 4G		110 Watts
Radeon HD 7870 XT		185 Watts
	Difference: 75 Watts (68%)

Memory Bandwidth

Performance-wise, the Radeon HD 7870 XT should theoretically be a small bit better than the Radeon R7 370 4G overall. (explain)

Radeon HD 7870 XT		192000 MB/sec
Radeon R7 370 4G		179200 MB/sec
	Difference: 12800 (7%)

Texel Rate

The Radeon HD 7870 XT will be a lot (approximately 42%) better at texture filtering than the Radeon R7 370 4G. (explain)

Radeon HD 7870 XT		88800 Mtexels/sec
Radeon R7 370 4G		62400 Mtexels/sec
	Difference: 26400 (42%)

Pixel Rate

The Radeon R7 370 4G will be a bit (approximately 5%) faster with regards to full screen anti-aliasing than the Radeon HD 7870 XT, and should be able to handle higher screen resolutions while still performing well. (explain)

Radeon R7 370 4G		31200 Mpixels/sec
Radeon HD 7870 XT		29600 Mpixels/sec
	Difference: 1600 (5%)

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 information (counted in megabytes per second) that can be moved across the external memory interface within a second. It is worked out by multiplying the bus width by the speed of its memory. In the case of DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour 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 fill rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.