diff --git a/src/perf/cpu.S b/src/perf/cpu.S
index c7675ae..903709a 100644
--- a/src/perf/cpu.S
+++ b/src/perf/cpu.S
@@ -495,101 +495,8 @@ bench double_write, 1024
 2:	mov.l	r1, @r5
 end
 
-/* [2D image rendering]
-
-   This section is used to investigate the performance of Azur's built-in image
-   shader. Most of the core loops must perform at 5-10 cycles per iteration,
-   which is fairly easy to validate here. */
-
-bench azur_p8_rgb565, 512
-	mov.l	.buffer2, r3
-	mov.l	.buffer, r5
-
-	mov.l	r10, @-r15
-	mov	#0, r0
-
-	mov.l	r8, @-r15
-	mov	#0, r10
-
-	mov	r3, r8
-	nop
-
-	/* 2-unrolled 2-stage main loop */
-1:	mov.b	@r3+, r6
-	shll	r10
-
-	mov.w	@(r0,r8), r0
-	nop
-
-	mov.w	r0, @(4,r5)
-	mov	r10, r0
-
-	mov.b	@r3+, r10
-	add	#4, r5
-
-	mov.w	@(r0,r8), r0
-	shll	r6
-
-	mov.w	r0, @(2,r5)
-2:	mov	r6, r0
-
-	mov.l	@r15+, r8
-	mov.l	@r15+, r10
-end
-
-bench azur_p8_rgb565a, 512
-	mov.l	.buffer2, r3
-	mov.l	.buffer, r5
-
-	mov.l	r10, @-r15
-	mov	#0, r6
-
-	mov.l	r8, @-r15
-	mov	#0, r10
-
-	mov	r3, r8
-	nop
-
-	/* 2-unrolled 2-stage main loop */
-1:	add	r6, r6
-	mov	r6, r0
-
-	add	r10, r10
-	bt.s	5f
-
-	tst	r10, r10
-	mov.w	@(r0,r8), r0
-
-	mov.w	r0, @(4,r5)
-
-     5: mov.b	@r3+, r6
-	mov	r10, r0
-
-	bt.s	6f
-	add	#4, r5
-
-	mov.w	@(r0,r8), r0
-
-	mov.w	r0, @(2,r5)
-
-     6:	mov.b	@r3+, r10
-2:	tst	r6, r6
-
-	mov.l	@r15+, r8
-	mov.l	@r15+, r10
-end
-
 /* XRAM buffer */
 
 .align 4
 .buffer:
 	.long	_cpu_perf_xram_buffer
-
-/* Secondary buffer in RAM */
-
-.buffer2:
-	.long	_buffer2
-
-.section .data, "aw"
-_buffer2:
-	.zero	2048
diff --git a/src/perf/cpu.c b/src/perf/cpu.c
index b116070..f72e5b1 100644
--- a/src/perf/cpu.c
+++ b/src/perf/cpu.c
@@ -55,8 +55,6 @@
 	MACRO(double_read,			1024,	"Double read") \
 	MACRO(double_incr_read,		1024,	"Double increment read") \
 	MACRO(double_write,			1024,	"Double write") \
-	MACRO(azur_p8_rgb565,		512,	"Azur: P8_RGB565 loop") \
-	MACRO(azur_p8_rgb565a,		512,	"Azur: P8_RGB565A loop") \
 
 GXRAM uint32_t cpu_perf_xram_buffer[512];