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GeForce GTS 450 1GB vs Radeon R9 M390X

Intro

The GeForce GTS 450 1GB features clock speeds of 783 MHz on the GPU, and 902 MHz on the 1024 MB of GDDR5 RAM. It features 192 SPUs along with 32 Texture Address Units and 16 ROPs.

Compare that to the Radeon R9 M390X, which features a clock speed of 723 MHz and a GDDR5 memory frequency of 1250 MHz. It also uses a 256-bit bus, and uses a 28 nm design. It is comprised of 2048 SPUs, 128 TAUs, and 32 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTS 450 1GB 106 Watts
Radeon R9 M390X 125 Watts
Difference: 19 Watts (18%)

Memory Bandwidth

Performance-wise, the Radeon R9 M390X should in theory be quite a bit superior to the GeForce GTS 450 1GB in general. (explain)

Radeon R9 M390X 160000 MB/sec
GeForce GTS 450 1GB 57728 MB/sec
Difference: 102272 (177%)

Texel Rate

The Radeon R9 M390X should be a lot (more or less 269%) faster with regards to texture filtering than the GeForce GTS 450 1GB. (explain)

Radeon R9 M390X 92544 Mtexels/sec
GeForce GTS 450 1GB 25056 Mtexels/sec
Difference: 67488 (269%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon R9 M390X is superior to the GeForce GTS 450 1GB, by far. (explain)

Radeon R9 M390X 23136 Mpixels/sec
GeForce GTS 450 1GB 12528 Mpixels/sec
Difference: 10608 (85%)

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

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GeForce GTS 450 1GB

Amazon.com

Check prices at:

Radeon R9 M390X

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

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Model GeForce GTS 450 1GB Radeon R9 M390X
Manufacturer nVidia AMD
Year September 2010 2015
Code Name GF106 Tonga
Memory 1024 MB 4096 MB
Core Speed 783 MHz 723 MHz
Memory Speed 3608 MHz 5000 MHz
Power (Max TDP) 106 watts 125 watts
Bandwidth 57728 MB/sec 160000 MB/sec
Texel Rate 25056 Mtexels/sec 92544 Mtexels/sec
Pixel Rate 12528 Mpixels/sec 23136 Mpixels/sec
Unified Shaders 192 2048
Texture Mapping Units 32 128
Render Output Units 16 32
Bus Type GDDR5 GDDR5
Bus Width 128-bit 256-bit
Fab Process 40 nm 28 nm
Transistors 1170 million (Unknown) million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 12
OpenGL Version OpenGL 4.1 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the maximum amount of information (measured in megabytes per second) that can be moved past the external memory interface in a second. It's calculated by multiplying the interface width by its memory clock speed. In the case of DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, 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 can be applied per second. This is worked out by multiplying the total texture units by the core speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount 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 worked out by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as 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 of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

Hide Prices

GeForce GTS 450 1GB

Amazon.com

Check prices at:

Radeon R9 M390X

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.

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