Compare any two graphics cards:
VS

Radeon R9 M270X vs Radeon R9 M280X

Intro

The Radeon R9 M270X uses a 28 nm design. AMD has set the core frequency at 725 MHz. The GDDR5 memory works at a frequency of 1125 MHz on this card. It features 640 SPUs along with 40 TAUs and 16 ROPs.

Compare those specifications to the Radeon R9 M280X, which features clock speeds of 900 MHz on the GPU, and 1375 MHz on the 4096 MB of GDDR5 RAM. It features 896 SPUs as well as 56 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon R9 M280X should be 22% faster than the Radeon R9 M270X overall, because of its greater data rate. (explain)

Radeon R9 M280X 88000 MB/sec
Radeon R9 M270X 72000 MB/sec
Difference: 16000 (22%)

Texel Rate

The Radeon R9 M280X is quite a bit (approximately 74%) better at AF than the Radeon R9 M270X. (explain)

Radeon R9 M280X 50400 Mtexels/sec
Radeon R9 M270X 29000 Mtexels/sec
Difference: 21400 (74%)

Pixel Rate

The Radeon R9 M280X should be quite a bit (about 24%) faster with regards to FSAA than the Radeon R9 M270X, and also will be capable of handling higher resolutions while still performing well. (explain)

Radeon R9 M280X 14400 Mpixels/sec
Radeon R9 M270X 11600 Mpixels/sec
Difference: 2800 (24%)

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

Display Prices

Hide Prices

Radeon R9 M270X

Amazon.com

Check prices at:

Radeon R9 M280X

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

Display Specifications

Hide Specifications

Model Radeon R9 M270X Radeon R9 M280X
Manufacturer AMD AMD
Year May 1 2014 Feb 9 2015
Code Name Venus XT Saturn XT
Memory 2048 MB 4096 MB
Core Speed 725 MHz 900 MHz
Memory Speed 4500 MHz 5500 MHz
Power (Max TDP) (Unknown) watts 75 watts
Bandwidth 72000 MB/sec 88000 MB/sec
Texel Rate 29000 Mtexels/sec 50400 Mtexels/sec
Pixel Rate 11600 Mpixels/sec 14400 Mpixels/sec
Unified Shaders 640 896
Texture Mapping Units 40 56
Render Output Units 16 16
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 28 nm 28 nm
Transistors (Unknown) million (Unknown) million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.2 DirectX 11.2
OpenGL Version OpenGL 4.3 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the largest amount of data (in units of MB per second) that can be moved past the external memory interface in one second. It is worked out by multiplying the interface width by its memory clock speed. If it uses DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This figure is calculated by multiplying the total amount of texture units of the card by the core 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 applied in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. 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 reach the max fill rate.

Display Prices

Hide Prices

Radeon R9 M270X

Amazon.com

Check prices at:

Radeon R9 M280X

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Comments

Be the first to leave a comment!

Your email address will not be published. Required fields are marked *


*

WordPress Anti Spam by WP-SpamShield