Radeon RX 6700 XT vs Radeon R9 285
We compared two Desktop platform GPUs: 12GB VRAM Radeon RX 6700 XT and 2GB VRAM Radeon R9 285 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon RX 6700 XT Advantages
Released 6 years and 6 months late
Boost Clock2581MHz
More VRAM (12GB vs 2GB)
Larger VRAM bandwidth (384.0GB/s vs 176.0GB/s)
768 additional rendering cores
Radeon R9 285 Advantages
Lower TDP (190W vs 230W)
Score
Benchmark
FP32 (float)
Radeon RX 6700 XT
+301%
13210
Radeon R9 285
3290
Graphics Card
Mar 2021
Release Date
Sep 2014
Navi II
Generation
Volcanic Islands
Desktop
Type
Desktop
PCIe 4.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
2321 MHz
Base Clock
-
2581 MHz
Boost Clock
-
2000 MHz
Memory Clock
1375 MHz
Memory
12GB
Memory Size
2GB
GDDR6
Memory Type
GDDR5
192bit
Memory Bus
256bit
384.0GB/s
Bandwidth
176.0GB/s
Render Config
40
Compute Units
28
2560
Shading Units
1792
160
TMUs
112
64
ROPs
32
40
RT Cores
-
128 KB per Array
L1 Cache
16 KB (per CU)
3 MB
L2 Cache
512 KB
96 MB
L3 Cache
-
Theoretical Performance
165.2 GPixel/s
Pixel Rate
29.38 GPixel/s
413.0 GTexel/s
Texture Rate
102.8 GTexel/s
26.43 TFLOPS
FP16 (half)
3.290 TFLOPS
13.21 TFLOPS
FP32 (float)
3.290 TFLOPS
825.9 GFLOPS
FP64 (double)
205.6 GFLOPS
Board Design
230W
TDP
190W
550 W
Suggested PSU
450 W
1x HDMI 2.1
3x DisplayPort 1.4a
3x DisplayPort 1.4a
Outputs
2x DVI
1x HDMI 1.4a
1x DisplayPort 1.2
1x HDMI 1.4a
1x DisplayPort 1.2
1x 6-pin + 1x 8-pin
Power Connectors
2x 6-pin
Graphics Processor
Navi 22
GPU Name
Tonga
Navi 22 XT
(215-127000006)
(215-127000006)
GPU Variant
Tonga PRO
(215-0851128)
(215-0851128)
RDNA 2.0
Architecture
GCN 3.0
TSMC
Foundry
TSMC
7 nm
Process Size
28 nm
17.2 billion
Transistors
5 billion
335 mm²
Die Size
366 mm²
Graphics Features
12 Ultimate (12_2)
DirectX
12 (12_0)
4.6
OpenGL
4.6
2.1
OpenCL
2.1
1.3
Vulkan
1.2.170
6.5
Shader Model
6.5
