diff --git a/modules/gpu/test/nvidia/main_nvidia.cpp b/modules/gpu/test/nvidia/main_nvidia.cpp
index 43c92ce1ee..2602432c38 100644
--- a/modules/gpu/test/nvidia/main_nvidia.cpp
+++ b/modules/gpu/test/nvidia/main_nvidia.cpp
@@ -375,9 +375,9 @@ bool nvidia_NCV_Vector_Operations(const std::string& test_data_path, OutputLevel
 
     NCVAutoTestLister testListerVectorOperations("Vector Operations", outputLevel);
 
-    NCVTestSourceProvider<Ncv32u> testSrcRandom_32u(2010, 0, 0xFFFFFFFF, 4096, 4096);
+    NCVTestSourceProvider<Ncv32u> testSrcRandom_32u(2010, 0, 0xFFFFFFFF, 2048, 2048);
 
-    generateVectorTests(testListerVectorOperations, testSrcRandom_32u, 4096*4096);
+    generateVectorTests(testListerVectorOperations, testSrcRandom_32u, 2048*2048);
 
     return testListerVectorOperations.invoke();