ZOTAC GeForce GTX 670 AMP! Edition 2 GB

ZOTAC GeForce GTX 670 AMP! Edition 2 GB

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Introduction



NVIDIA's much talked about Kepler GPU architecture is finally testing waters in the crucial performance market-segment, with the GeForce GTX 670. The new graphics card, as NVIDIA puts it, is built from the DNA of GeForce GTX 680. This launch closely follows that of the GeForce GTX 690, which is the posterboy of the Kepler GPU architecture, and is the fastest graphics card ever made. The GeForce GTX 670 is designed to let NVIDIA capture the US $399 price point, its competitor is meant to be Radeon HD 7950, although its specifications give us hope that the SKU could fry both bigger and smaller fish than that. It could target the Radeon HD 7950, as well as take a shot at scoring a higher price-performance than the much cheaper Radeon HD 7870 GHz Edition.

The GeForce GTX 670 utilizes the same 28 nm GK104 silicon, with one streaming multiprocessor (SMX, amounts for 192 CUDA cores) cut out, resulting in a CUDA core count of 1,344. The GPU clock speeds are also toned down a tiny bit, with 915 MHz core, and 980 MHz GPU Boost frequency, but the memory clock speed (of 6.00 GHz, resulting in 192 GB/s bandwidth) is left untouched. It packs 112 texture memory units (TMUs), and 32 raster operations processors (ROPs). The GeForce GTX 670 retains the entire feature-set of the GTX 680, including 4-way SLI support, and the ability to drive four monitors by a single card (and hence 3D Vision Surround).



ZOTAC's GeForce GTX 670 AMP! Edition comes a premium GTX 670 implementation. The card uses the exact same PCB, cooler, memory and other components as the ZOTAC GTX 680 AMP! Edition. ZOTAC has increased clocks of their card by a large amount to exploit their custom design as much as possible.


Important: All data in this review was obtained after I repaired a major design error of the card. When I received it, the card ran extremely high temperatures, reaching beyond 100°C. This is caused by screws with integrated stop, that resulted in too little mounting pressure between GPU and heatsink. I added four metal washers, by removing the screws, adding the washer and putting the screws back. The cooler was not removed for this procedure, thermal paste was not changed.

GeForce GTX 670 Market Segment Analysis
 GeForce
GTX 570
Radeon
HD 6970
Radeon
HD 7850
Radeon
HD 7870
GeForce
GTX 580
Radeon
HD 7950
GeForce
GTX 670
ZOTAC GTX
670 AMP!
Radeon
HD 7970
GeForce
GTX 680
 
Shader Units48015361024128051217921344134420481536 
ROPs40323232483232323232 
Graphics ProcessorGF110CaymanPitcairnPitcairnGF110TahitiGK104GK104TahitiGK104 
Transistors3000M2640M2800M2800M3000M4310M3500M3500M4310M3500M 
Memory Size1280 MB2048 MB2048 MB2048 MB1536 MB3072 MB2048 MB2048 MB3072 MB2048 MB 
Memory Bus Width320 bit256 bit256 bit256 bit384 bit384 bit256 bit256 bit384 bit256 bit 
Core Clock732 MHz880 MHz860 MHz1000 MHz772 MHz800 MHz915 MHz+1150 MHz+925 MHz1006 MHz+ 
Memory Clock950 MHz1375 MHz1200 MHz1200 MHz1002 MHz1250 MHz1502 MHz1890 MHz1375 MHz1502 MHz 
Price$290$340$250$330$380$380$400$440$450$500 
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