diff --git a/benchmark/assert/deepequal-buffer.js b/benchmark/assert/deepequal-buffer.js
index fe3f6f9754c3a0..baf3e1766c15f5 100644
--- a/benchmark/assert/deepequal-buffer.js
+++ b/benchmark/assert/deepequal-buffer.js
@@ -3,17 +3,16 @@ const common = require('../common.js');
 const assert = require('assert');
 
 const bench = common.createBenchmark(main, {
-  n: [1e5],
-  len: [1e2, 1e4],
+  n: [2e4],
+  len: [1e2, 1e3],
+  strict: [0, 1],
   method: [
     'deepEqual',
-    'deepStrictEqual',
-    'notDeepEqual',
-    'notDeepStrictEqual'
+    'notDeepEqual'
   ]
 });
 
-function main({ len, n, method }) {
+function main({ len, n, method, strict }) {
   if (!method)
     method = 'deepEqual';
   const data = Buffer.allocUnsafe(len + 1);
@@ -24,6 +23,9 @@ function main({ len, n, method }) {
   data.copy(expected);
   data.copy(expectedWrong);
 
+  if (strict) {
+    method = method.replace('eep', 'eepStrict');
+  }
   const fn = assert[method];
   const value2 = method.includes('not') ? expectedWrong : expected;
 
diff --git a/benchmark/assert/deepequal-map.js b/benchmark/assert/deepequal-map.js
index c6c7173fe8ed6d..c15e1c9a360c3b 100644
--- a/benchmark/assert/deepequal-map.js
+++ b/benchmark/assert/deepequal-map.js
@@ -7,21 +7,14 @@ const { deepEqual, deepStrictEqual, notDeepEqual, notDeepStrictEqual } =
 const bench = common.createBenchmark(main, {
   n: [5e2],
   len: [5e2],
+  strict: [0, 1],
   method: [
     'deepEqual_primitiveOnly',
-    'deepStrictEqual_primitiveOnly',
     'deepEqual_objectOnly',
-    'deepStrictEqual_objectOnly',
     'deepEqual_mixed',
-    'deepStrictEqual_mixed',
-    'deepEqual_looseMatches',
     'notDeepEqual_primitiveOnly',
-    'notDeepStrictEqual_primitiveOnly',
     'notDeepEqual_objectOnly',
-    'notDeepStrictEqual_objectOnly',
-    'notDeepEqual_mixed',
-    'notDeepStrictEqual_mixed',
-    'notDeepEqual_looseMatches',
+    'notDeepEqual_mixed'
   ]
 });
 
@@ -37,7 +30,7 @@ function benchmark(method, n, values, values2) {
   bench.end(n);
 }
 
-function main({ n, len, method }) {
+function main({ n, len, method, strict }) {
   const array = Array(len).fill(1);
   var values, values2;
 
@@ -46,74 +39,33 @@ function main({ n, len, method }) {
       // Empty string falls through to next line as default, mostly for tests.
     case 'deepEqual_primitiveOnly':
       values = array.map((_, i) => [`str_${i}`, 123]);
-      benchmark(deepEqual, n, values);
-      break;
-    case 'deepStrictEqual_primitiveOnly':
-      values = array.map((_, i) => [`str_${i}`, 123]);
-      benchmark(deepStrictEqual, n, values);
+      benchmark(strict ? deepStrictEqual : deepEqual, n, values);
       break;
     case 'deepEqual_objectOnly':
       values = array.map((_, i) => [[`str_${i}`, 1], 123]);
-      benchmark(deepEqual, n, values);
-      break;
-    case 'deepStrictEqual_objectOnly':
-      values = array.map((_, i) => [[`str_${i}`, 1], 123]);
-      benchmark(deepStrictEqual, n, values);
+      benchmark(strict ? deepStrictEqual : deepEqual, n, values);
       break;
     case 'deepEqual_mixed':
       values = array.map((_, i) => [i % 2 ? [`str_${i}`, 1] : `str_${i}`, 123]);
-      benchmark(deepEqual, n, values);
-      break;
-    case 'deepStrictEqual_mixed':
-      values = array.map((_, i) => [i % 2 ? [`str_${i}`, 1] : `str_${i}`, 123]);
-      benchmark(deepStrictEqual, n, values);
-      break;
-    case 'deepEqual_looseMatches':
-      values = array.map((_, i) => [i, i]);
-      values2 = values.slice().map((v) => [String(v[0]), String(v[1])]);
-      benchmark(deepEqual, n, values, values2);
+      benchmark(strict ? deepStrictEqual : deepEqual, n, values);
       break;
     case 'notDeepEqual_primitiveOnly':
       values = array.map((_, i) => [`str_${i}`, 123]);
       values2 = values.slice(0);
       values2[Math.floor(len / 2)] = ['w00t', 123];
-      benchmark(notDeepEqual, n, values, values2);
-      break;
-    case 'notDeepStrictEqual_primitiveOnly':
-      values = array.map((_, i) => [`str_${i}`, 123]);
-      values2 = values.slice(0);
-      values2[Math.floor(len / 2)] = ['w00t', 123];
-      benchmark(notDeepStrictEqual, n, values, values2);
+      benchmark(strict ? notDeepStrictEqual : notDeepEqual, n, values, values2);
       break;
     case 'notDeepEqual_objectOnly':
       values = array.map((_, i) => [[`str_${i}`, 1], 123]);
       values2 = values.slice(0);
       values2[Math.floor(len / 2)] = [['w00t'], 123];
-      benchmark(notDeepEqual, n, values, values2);
-      break;
-    case 'notDeepStrictEqual_objectOnly':
-      values = array.map((_, i) => [[`str_${i}`, 1], 123]);
-      values2 = values.slice(0);
-      values2[Math.floor(len / 2)] = [['w00t'], 123];
-      benchmark(notDeepStrictEqual, n, values, values2);
+      benchmark(strict ? notDeepStrictEqual : notDeepEqual, n, values, values2);
       break;
     case 'notDeepEqual_mixed':
       values = array.map((_, i) => [i % 2 ? [`str_${i}`, 1] : `str_${i}`, 123]);
       values2 = values.slice(0);
       values2[0] = ['w00t', 123];
-      benchmark(notDeepEqual, n, values, values2);
-      break;
-    case 'notDeepStrictEqual_mixed':
-      values = array.map((_, i) => [i % 2 ? [`str_${i}`, 1] : `str_${i}`, 123]);
-      values2 = values.slice(0);
-      values2[0] = ['w00t', 123];
-      benchmark(notDeepStrictEqual, n, values, values2);
-      break;
-    case 'notDeepEqual_looseMatches':
-      values = array.map((_, i) => [i, i]);
-      values2 = values.slice().map((v) => [String(v[0]), String(v[1])]);
-      values2[len - 1] = [String(len + 1), String(len + 1)];
-      benchmark(notDeepEqual, n, values, values2);
+      benchmark(strict ? notDeepStrictEqual : notDeepEqual, n, values, values2);
       break;
     default:
       throw new Error(`Unsupported method ${method}`);
diff --git a/benchmark/assert/deepequal-object.js b/benchmark/assert/deepequal-object.js
index 124943b19ec761..1a9c826a00d4c1 100644
--- a/benchmark/assert/deepequal-object.js
+++ b/benchmark/assert/deepequal-object.js
@@ -4,13 +4,12 @@ const common = require('../common.js');
 const assert = require('assert');
 
 const bench = common.createBenchmark(main, {
-  n: [1e6],
-  size: [1e2, 1e3, 1e4],
+  n: [5e3],
+  size: [1e2, 1e3, 5e4],
+  strict: [0, 1],
   method: [
     'deepEqual',
-    'deepStrictEqual',
-    'notDeepEqual',
-    'notDeepStrictEqual'
+    'notDeepEqual'
   ]
 });
 
@@ -20,14 +19,16 @@ function createObj(source, add = '') {
     nope: {
       bar: `123${add}`,
       a: [1, 2, 3],
-      baz: n
+      baz: n,
+      c: {},
+      b: []
     }
   }));
 }
 
-function main({ size, n, method }) {
+function main({ size, n, method, strict }) {
   // TODO: Fix this "hack". `n` should not be manipulated.
-  n = n / size;
+  n = Math.min(Math.ceil(n / size), 20);
 
   if (!method)
     method = 'deepEqual';
@@ -37,6 +38,9 @@ function main({ size, n, method }) {
   const expected = createObj(source);
   const expectedWrong = createObj(source, '4');
 
+  if (strict) {
+    method = method.replace('eep', 'eepStrict');
+  }
   const fn = assert[method];
   const value2 = method.includes('not') ? expectedWrong : expected;
 
diff --git a/benchmark/assert/deepequal-prims-and-objs-big-array-set.js b/benchmark/assert/deepequal-prims-and-objs-big-array-set.js
index 4578e5a250f392..71637c28cea999 100644
--- a/benchmark/assert/deepequal-prims-and-objs-big-array-set.js
+++ b/benchmark/assert/deepequal-prims-and-objs-big-array-set.js
@@ -5,29 +5,22 @@ const { deepEqual, deepStrictEqual, notDeepEqual, notDeepStrictEqual } =
   require('assert');
 
 const primValues = {
-  'null': null,
-  'undefined': undefined,
   'string': 'a',
   'number': 1,
-  'boolean': true,
   'object': { 0: 'a' },
-  'array': [1, 2, 3],
-  'new-array': new Array([1, 2, 3])
+  'array': [1, 2, 3]
 };
 
 const bench = common.createBenchmark(main, {
   primitive: Object.keys(primValues),
   n: [25],
-  len: [1e5],
+  len: [2e4],
+  strict: [0, 1],
   method: [
     'deepEqual_Array',
-    'deepStrictEqual_Array',
     'notDeepEqual_Array',
-    'notDeepStrictEqual_Array',
     'deepEqual_Set',
-    'deepStrictEqual_Set',
-    'notDeepEqual_Set',
-    'notDeepStrictEqual_Set'
+    'notDeepEqual_Set'
   ]
 });
 
@@ -39,7 +32,7 @@ function run(fn, n, actual, expected) {
   bench.end(n);
 }
 
-function main({ n, len, primitive, method }) {
+function main({ n, len, primitive, method, strict }) {
   const prim = primValues[primitive];
   const actual = [];
   const expected = [];
@@ -62,28 +55,17 @@ function main({ n, len, primitive, method }) {
     // Empty string falls through to next line as default, mostly for tests.
     case '':
     case 'deepEqual_Array':
-      run(deepEqual, n, actual, expected);
-      break;
-    case 'deepStrictEqual_Array':
-      run(deepStrictEqual, n, actual, expected);
+      run(strict ? deepStrictEqual : deepEqual, n, actual, expected);
       break;
     case 'notDeepEqual_Array':
-      run(notDeepEqual, n, actual, expectedWrong);
-      break;
-    case 'notDeepStrictEqual_Array':
-      run(notDeepStrictEqual, n, actual, expectedWrong);
+      run(strict ? notDeepStrictEqual : notDeepEqual, n, actual, expectedWrong);
       break;
     case 'deepEqual_Set':
-      run(deepEqual, n, actualSet, expectedSet);
-      break;
-    case 'deepStrictEqual_Set':
-      run(deepStrictEqual, n, actualSet, expectedSet);
+      run(strict ? deepStrictEqual : deepEqual, n, actualSet, expectedSet);
       break;
     case 'notDeepEqual_Set':
-      run(notDeepEqual, n, actualSet, expectedWrongSet);
-      break;
-    case 'notDeepStrictEqual_Set':
-      run(notDeepStrictEqual, n, actualSet, expectedWrongSet);
+      run(strict ? notDeepStrictEqual : notDeepEqual,
+          n, actualSet, expectedWrongSet);
       break;
     default:
       throw new Error(`Unsupported method "${method}"`);
diff --git a/benchmark/assert/deepequal-prims-and-objs-big-loop.js b/benchmark/assert/deepequal-prims-and-objs-big-loop.js
index f1183dab32a3fb..13abaf107fdfb9 100644
--- a/benchmark/assert/deepequal-prims-and-objs-big-loop.js
+++ b/benchmark/assert/deepequal-prims-and-objs-big-loop.js
@@ -3,28 +3,23 @@ const common = require('../common.js');
 const assert = require('assert');
 
 const primValues = {
-  'null': null,
-  'undefined': undefined,
   'string': 'a',
   'number': 1,
-  'boolean': true,
   'object': { 0: 'a' },
-  'array': [1, 2, 3],
-  'new-array': new Array([1, 2, 3])
+  'array': [1, 2, 3]
 };
 
 const bench = common.createBenchmark(main, {
   primitive: Object.keys(primValues),
-  n: [1e6],
+  n: [2e4],
+  strict: [0, 1],
   method: [
     'deepEqual',
-    'deepStrictEqual',
     'notDeepEqual',
-    'notDeepStrictEqual'
   ]
 });
 
-function main({ n, primitive, method }) {
+function main({ n, primitive, method, strict }) {
   if (!method)
     method = 'deepEqual';
   const prim = primValues[primitive];
@@ -32,6 +27,9 @@ function main({ n, primitive, method }) {
   const expected = prim;
   const expectedWrong = 'b';
 
+  if (strict) {
+    method = method.replace('eep', 'eepStrict');
+  }
   const fn = assert[method];
   const value2 = method.includes('not') ? expectedWrong : expected;
 
diff --git a/benchmark/assert/deepequal-set.js b/benchmark/assert/deepequal-set.js
index 6769e5e37fafb7..1f4061afb2a300 100644
--- a/benchmark/assert/deepequal-set.js
+++ b/benchmark/assert/deepequal-set.js
@@ -7,21 +7,14 @@ const { deepEqual, deepStrictEqual, notDeepEqual, notDeepStrictEqual } =
 const bench = common.createBenchmark(main, {
   n: [5e2],
   len: [5e2],
+  strict: [0, 1],
   method: [
     'deepEqual_primitiveOnly',
-    'deepStrictEqual_primitiveOnly',
     'deepEqual_objectOnly',
-    'deepStrictEqual_objectOnly',
     'deepEqual_mixed',
-    'deepStrictEqual_mixed',
-    'deepEqual_looseMatches',
     'notDeepEqual_primitiveOnly',
-    'notDeepStrictEqual_primitiveOnly',
     'notDeepEqual_objectOnly',
-    'notDeepStrictEqual_objectOnly',
-    'notDeepEqual_mixed',
-    'notDeepStrictEqual_mixed',
-    'notDeepEqual_looseMatches',
+    'notDeepEqual_mixed'
   ]
 });
 
@@ -37,7 +30,7 @@ function benchmark(method, n, values, values2) {
   bench.end(n);
 }
 
-function main({ n, len, method }) {
+function main({ n, len, method, strict }) {
   const array = Array(len).fill(1);
 
   var values, values2;
@@ -47,60 +40,29 @@ function main({ n, len, method }) {
       // Empty string falls through to next line as default, mostly for tests.
     case 'deepEqual_primitiveOnly':
       values = array.map((_, i) => `str_${i}`);
-      benchmark(deepEqual, n, values);
-      break;
-    case 'deepStrictEqual_primitiveOnly':
-      values = array.map((_, i) => `str_${i}`);
-      benchmark(deepStrictEqual, n, values);
+      benchmark(strict ? deepStrictEqual : deepEqual, n, values);
       break;
     case 'deepEqual_objectOnly':
       values = array.map((_, i) => [`str_${i}`, null]);
-      benchmark(deepEqual, n, values);
-      break;
-    case 'deepStrictEqual_objectOnly':
-      values = array.map((_, i) => [`str_${i}`, null]);
-      benchmark(deepStrictEqual, n, values);
+      benchmark(strict ? deepStrictEqual : deepEqual, n, values);
       break;
     case 'deepEqual_mixed':
       values = array.map((_, i) => {
         return i % 2 ? [`str_${i}`, null] : `str_${i}`;
       });
-      benchmark(deepEqual, n, values);
-      break;
-    case 'deepStrictEqual_mixed':
-      values = array.map((_, i) => {
-        return i % 2 ? [`str_${i}`, null] : `str_${i}`;
-      });
-      benchmark(deepStrictEqual, n, values);
-      break;
-    case 'deepEqual_looseMatches':
-      values = array.map((_, i) => i);
-      values2 = values.slice().map((v) => String(v));
-      benchmark(deepEqual, n, values, values2);
+      benchmark(strict ? deepStrictEqual : deepEqual, n, values);
       break;
     case 'notDeepEqual_primitiveOnly':
       values = array.map((_, i) => `str_${i}`);
       values2 = values.slice(0);
       values2[Math.floor(len / 2)] = 'w00t';
-      benchmark(notDeepEqual, n, values, values2);
-      break;
-    case 'notDeepStrictEqual_primitiveOnly':
-      values = array.map((_, i) => `str_${i}`);
-      values2 = values.slice(0);
-      values2[Math.floor(len / 2)] = 'w00t';
-      benchmark(notDeepStrictEqual, n, values, values2);
+      benchmark(strict ? notDeepStrictEqual : notDeepEqual, n, values, values2);
       break;
     case 'notDeepEqual_objectOnly':
       values = array.map((_, i) => [`str_${i}`, null]);
       values2 = values.slice(0);
       values2[Math.floor(len / 2)] = ['w00t'];
-      benchmark(notDeepEqual, n, values, values2);
-      break;
-    case 'notDeepStrictEqual_objectOnly':
-      values = array.map((_, i) => [`str_${i}`, null]);
-      values2 = values.slice(0);
-      values2[Math.floor(len / 2)] = ['w00t'];
-      benchmark(notDeepStrictEqual, n, values, values2);
+      benchmark(strict ? notDeepStrictEqual : notDeepEqual, n, values, values2);
       break;
     case 'notDeepEqual_mixed':
       values = array.map((_, i) => {
@@ -108,21 +70,7 @@ function main({ n, len, method }) {
       });
       values2 = values.slice();
       values2[0] = 'w00t';
-      benchmark(notDeepEqual, n, values, values2);
-      break;
-    case 'notDeepStrictEqual_mixed':
-      values = array.map((_, i) => {
-        return i % 2 ? [`str_${i}`, null] : `str_${i}`;
-      });
-      values2 = values.slice();
-      values2[0] = 'w00t';
-      benchmark(notDeepStrictEqual, n, values, values2);
-      break;
-    case 'notDeepEqual_looseMatches':
-      values = array.map((_, i) => i);
-      values2 = values.slice().map((v) => String(v));
-      values2[len - 1] = String(len + 1);
-      benchmark(notDeepEqual, n, values, values2);
+      benchmark(strict ? notDeepStrictEqual : notDeepEqual, n, values, values2);
       break;
     default:
       throw new Error(`Unsupported method "${method}"`);
diff --git a/benchmark/assert/deepequal-typedarrays.js b/benchmark/assert/deepequal-typedarrays.js
index c4d8f434bf4e8a..9f9c68a6731254 100644
--- a/benchmark/assert/deepequal-typedarrays.js
+++ b/benchmark/assert/deepequal-typedarrays.js
@@ -6,39 +6,39 @@ const bench = common.createBenchmark(main, {
   type: [
     'Int8Array',
     'Uint8Array',
-    'Int16Array',
-    'Uint16Array',
-    'Int32Array',
-    'Uint32Array',
     'Float32Array',
     'Float64Array',
     'Uint8ClampedArray',
   ],
-  n: [1],
+  n: [5e2],
+  strict: [0, 1],
   method: [
     'deepEqual',
-    'deepStrictEqual',
     'notDeepEqual',
-    'notDeepStrictEqual'
   ],
-  len: [1e6]
+  len: [1e2, 5e3]
 });
 
-function main({ type, n, len, method }) {
+function main({ type, n, len, method, strict }) {
   if (!method)
     method = 'deepEqual';
   const clazz = global[type];
   const actual = new clazz(len);
   const expected = new clazz(len);
-  const expectedWrong = Buffer.alloc(len);
+  const expectedWrong = new clazz(len);
   const wrongIndex = Math.floor(len / 2);
   expectedWrong[wrongIndex] = 123;
 
+  if (strict) {
+    method = method.replace('eep', 'eepStrict');
+  }
   const fn = assert[method];
   const value2 = method.includes('not') ? expectedWrong : expected;
 
   bench.start();
   for (var i = 0; i < n; ++i) {
+    actual[0] = i;
+    value2[0] = i;
     fn(actual, value2);
   }
   bench.end(n);
diff --git a/benchmark/assert/ok.js b/benchmark/assert/ok.js
index 849be65539aef7..4869a9de69c319 100644
--- a/benchmark/assert/ok.js
+++ b/benchmark/assert/ok.js
@@ -4,7 +4,7 @@ const common = require('../common.js');
 const assert = require('assert');
 
 const bench = common.createBenchmark(main, {
-  n: [1e9]
+  n: [1e5]
 });
 
 function main({ n }) {
diff --git a/benchmark/assert/throws.js b/benchmark/assert/throws.js
index a8a7bd4509e1ca..1788630cb2f992 100644
--- a/benchmark/assert/throws.js
+++ b/benchmark/assert/throws.js
@@ -4,10 +4,9 @@ const common = require('../common.js');
 const { throws, doesNotThrow } = require('assert');
 
 const bench = common.createBenchmark(main, {
-  n: [1e6],
+  n: [1e4],
   method: [
     'doesNotThrow',
-    'throws',
     'throws_TypeError',
     'throws_RegExp'
   ]
@@ -30,13 +29,6 @@ function main({ n, method }) {
       }
       bench.end(n);
       break;
-    case 'throws':
-      bench.start();
-      for (i = 0; i < n; ++i) {
-        throws(throwError);
-      }
-      bench.end(n);
-      break;
     case 'throws_TypeError':
       bench.start();
       for (i = 0; i < n; ++i) {
diff --git a/test/parallel/test-benchmark-assert.js b/test/parallel/test-benchmark-assert.js
index 3ca72df718cd64..8a8ba0244489e5 100644
--- a/test/parallel/test-benchmark-assert.js
+++ b/test/parallel/test-benchmark-assert.js
@@ -10,6 +10,7 @@ const runBenchmark = require('../common/benchmark');
 runBenchmark(
   'assert',
   [
+    'strict=1',
     'len=1',
     'method=',
     'n=1',