GeForce GT 640 DDR3 vs Radeon R7 370 2G

Intro

Compare those specs to the Radeon R7 370 2G, which has a clock speed of 975 MHz and a GDDR5 memory frequency of 1400 MHz. It also makes use of a 256-bit memory bus, and uses a 28 nm design. It is made up of 1024 SPUs, 64 TAUs, and 32 ROPs.

Display Graphs

Hide Graphs

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 much 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 should be a lot (about 117%) faster with regards to texture filtering 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 should be much (more or less 117%) faster with regards to FSAA than the GeForce GT 640 DDR3, and should be able to handle higher resolutions while still performing well. (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 max amount of information (measured in MB per second) that can be transported across the external memory interface in a second. It is calculated by multiplying the card's interface width by its memory speed. If the card has DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better 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 are applied per second. This is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better this number, the better the video 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 the video card could possibly write to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.