![]() ![]() The card's dimensions are 241 mm x 109 mm x 36 mm, and it features a dual-slot cooling solution. Radeon R9 270X is connected to the rest of the system using a PCI-Express 3.0 x16 interface. ![]() Display outputs include: 2x DVI, 1x HDMI 1.4a, 1x DisplayPort 1.2. Graphics Processor GPU Name Curacao GPU Variant Curacao PRO (215-0848000) Architecture GCN 1. The card measures 210 mm in length, and features a dual-slot cooling solution. The GPU is operating at a frequency of 1000 MHz, which can be boosted up to 1050 MHz, memory is running at 1400 MHz (5.6 Gbps effective).īeing a dual-slot card, the AMD Radeon R9 270X draws power from 2x 6-pin power connectors, with power draw rated at 180 W maximum. Radeon R9 270 is connected to the rest of the system using a PCI-Express 3.0 x16 interface. AMD has paired 2,048 MB GDDR5 memory with the Radeon R9 270X, which are connected using a 256-bit memory interface. It features 1280 shading units, 80 texture mapping units, and 32 ROPs. The Curacao graphics processor is an average sized chip with a die area of 212 mm² and 2,800 million transistors. Even though it supports DirectX 12, the feature level is only 11_1, which can be problematic with newer DirectX 12 titles. Built on the 28 nm process, and based on the Curacao graphics processor, in its Curacao XT variant, the card supports DirectX 12. However the GT3e should be more powerful in theory considering the Haswell CPU cores and Iris Pro graphics.The Radeon R9 270X was a performance-segment graphics card by AMD, launched on October 8th, 2013. That said, it is doubtful that Kaveri will ever excel at fp64 intensive work.Where fp32 is concerned, Kaveri outperforms Haswell GT2 igpu and ivy bridge. 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. DX12 will take a year to affect new releases and will not affect any. However Kaveri is indeed a turning point for APUS. The r9270 is a faster GPU than the PS4s but the difference you will see between the same game on hardware is negligible. Also it seems that the do not support fp64 under Direct Compute at all. Force Splatted Flocking (Swarm) 22. Locally-deformable PRT (Bat) 31.2 fps Avg. This isnt a great result which indicates that there are much faster alternatives on the comparison list. It apparently depends on a set extension (which is proprietary btw) cl_amd_fp64. The AMD R9 270 averaged 75.8 lower than the peak scores attained by the group leaders. 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. Simply put, FP64 provides such a wide amount of numerical values that it's too big of a number to process for smaller calculations, done in workloads such as 3D gaming. 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. AnandTech recently did one of the more interesting showdowns in floating point history. ![]()
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