![]() ![]() If you have Win 8 you can optimize it through C++ and Iris Pro. Running the same code, optimized for AVX or FMA, on Haswell will grant better results. Kaveri's fp64 peak including both the CPU and GPU is 110 gflops. Not to mention that HSA and Mantle should open up more possibilities in the future. Because under GCN kaveri's gpu support fp64 under all APIs. However Kaveri is indeed a turning point for APUS. Also it seems that the do not support fp64 under Direct Compute at all. It apparently depends on a set extension (which is proprietary btw) cl_amd_fp64. AMD's Trinity and Richland does not have standards compliant fp64 under OpenCL. Sadly even on the AMD side of things, fp64 is a mess. According to a source of AnandTech the speed is roughly 1/4 compared to fp32. Problem is that Intel only enables fp64 for Direct Compute and NOT open CL, which is not the case with AMD. The instruction sets considered were SSE, AVX (without FMA) and AVX with FMA (either FMA3 or FMA4).Īs you can see the floating point 64 scenario is somewhat of a mess. The base frequency, not the turbo freq is used for peak calculation and for the iGPU the turbo freq is considered. The benchmarks are per-cycle based and the peak is calculated in Gigaflops. AMD released that the fp64 capability is roughly 1/16th of its fp32 capability. Therefore both the floating point 32 and floating point 64 capabilities of the CPU and iGPU are considered. The biggest power of the APUs is the HPC market niche. CPU and iGPU Floating Point Performance of AMD And Intel Bench marked. A Benchmark spanning the CPU and GPU floating point peak performance test spanning Kaveri Trinity Llano Haswell and Ivy Bridge. 0.AnandTech recently did one of the more interesting showdowns in floating point history. #16 got data and put it in $dataArray +0.016s. #15 composed SQL query for gamebenchmarks +0s. #12 min, max, avg, median took s +0.289s. #9 getting avg benchmarks for device 11324 +0.01s. #7 getting avg benchmarks for device 5061 +0.025s. #3 did not recreate cache, as it is less than 5 days old! Created at Tue, 14:24:12 +0200 +0.001s. Mantle, Eyefinity, App Acceleration, CrossFire, PowerTune, ZeroCore, HD3DĤ0 TFLOPS FP16, 40 TFLOPS FP32, 625 TFLOPS FP64Ĥ Displays (max.), HDMI 2.1, DisplayPort 1.4a Under load, the card is rated at a typical power consumption of 180 watts. Thanks to dynamic clock adjustments and the Zero Core technology, the R9 270X is very energy efficient while idle. However, there is no offical base clock respectively a lower limit. ![]() Depending on power consumption and temperature, the core can be boosted up to 1050 MHz. The R9 270X supports well-known features like Eyefinity, but also some innovations such as a new turbo mode. In some cases, even higher resolutions or additional AA/AF are possible. Demanding games like Metro: Last Light can be played fluently in 1920 x 1080 pixels and maximum settings. Therefore, even the fastest mobile GPUs like the GeForce GTX 780M are outperformed slightly. The 270X supports DirectX 12 (FL 11_1), but lacks the new Trueaudio feature.ĭepending on game and settings, the performance of the Radeon R9 270X is similar to the Nvidia GeForce GTX 760. Boost) and 1400 MHz (5600 MHz effective) for the memory. ![]() Compared to the HD 7870, the R9 270X clocks slightly higher at 1050 MHz for the Core (max. Curacao, former known as Pitcairn, is based on the GCN architecture and offers 1280 shaders, 80 TMUs and 32 ROPs. The R9 270X uses the same chip as the older Radeon HD 7870. The card offers 1280 shader units and a 256-bit memory interface (2 GB GDDR5, 179 GB/s). It is based on the "Curacao" GPU and manufactured in 28 nanometers. The AMD Radeon R9 270X is an upper middle-class graphics card for desktop PCs, that has been presented in October 2013. AMD Radeon R9 270X ► remove from comparison ![]()
0 Comments
Leave a Reply. |