GeForce GT 640 DDR3 vs Radeon R7 370 2G

Intro

Compare those specs 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 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.

3DMark Fire Strike Graphics Score

Radeon R7 370 2G		5582 points
GeForce GT 640 DDR3		1560 points
	Difference: 4022 (258%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 640 DDR3		65 Watts
Radeon R7 370 2G		110 Watts
	Difference: 45 Watts (69%)

Memory Bandwidth

Theoretically, the Radeon R7 370 2G should be a lot faster than the GeForce GT 640 DDR3 overall. (explain)

Radeon R7 370 2G		179200 MB/sec
GeForce GT 640 DDR3		57024 MB/sec
	Difference: 122176 (214%)

Texel Rate

The Radeon R7 370 2G is a lot (about 117%) better at AF than the GeForce GT 640 DDR3. (explain)

Radeon R7 370 2G		62400 Mtexels/sec
GeForce GT 640 DDR3		28800 Mtexels/sec
	Difference: 33600 (117%)

Pixel Rate

The Radeon R7 370 2G will be a lot (about 117%) better at AA than the GeForce GT 640 DDR3, and also will be capable of handling higher screen resolutions without slowing down too much. (explain)

Radeon R7 370 2G		31200 Mpixels/sec
GeForce GT 640 DDR3		14400 Mpixels/sec
	Difference: 16800 (117%)

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 maximum amount of data (in units of megabytes per second) that can be transported over the external memory interface in a second. It's calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, 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 processed in one second. This is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out 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 output rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.