On 13 September, Nvidia launched the GeForce GTX 660 and the GeForce GTX 650. At the time we didn't have a sample of the GTX 650 to test, but we do now. High time to find out what this £100 graphics card has in store in terms of performance.
The GTX 650 is truly a budget card from the Kepler generation. In terms of price, the GTX 650 is just under the level of AMD's Radeon HD 7770, and just above AMD's Radeon HD 7750. Nvidia is aiming the GTX 650 at the casual gamer, that want something more powerful than what integrated graphics can offer, but don't want to spend a huge amount of money on high-end graphics cards.
The GeForce GTX 650 Ti and the GeForce GTX 660 are based on the GK106 GPU with 960 cores and a 192-bit memory bus, but for the GTX 650 a smaller and more affordable GPU has been used. It's called the GK107 and has been used previously in for example the mobile GeForce GT 640M.
The GK107 contains 384 shader units or Cuda Cores, which translates to less than half the power of the GTX 660. The memory controller is 128-bit. The chip contains about 1.3 billion transistors, compared to the 2.5 billion of the GK106 and the 3.5 billion of the GK104. GTX 650 cards are clocked standard at 1058 MHz, but don't have a turbo mode. To keep the cost down, the cards have 1 GB video RAM clocked at 1250 MHz. The TDP is 64 watts, but to be safe a 6-pin PEG connector is included.
Below you can see the differences between the GTX 650, GTX 650 Ti and GTX 660.