Home GPU Comparison AMD Radeon R9 285 vs AMD Radeon RX 8800 XT

AMD Radeon R9 285 vs AMD Radeon RX 8800 XT

We compared two Desktop platform GPUs: 2GB VRAM Radeon R9 285 and 16GB VRAM Radeon RX 8800 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 285 's Advantages
Lower TDP (190W vs 220W)
AMD Radeon RX 8800 XT 's Advantages
Boost Clock2430MHz
More VRAM (16GB vs 2GB)
Larger VRAM bandwidth (624.1GB/s vs 176.0GB/s)
2304 additional rendering cores

Score

Benchmark

FP32 (float)
Radeon R9 285
3.29 TFLOPS
Radeon RX 8800 XT +505%
19.91 TFLOPS
VS

Graphics Card

Sep 2014
Release Date
Unknown
Volcanic Islands
Generation
Navi IV(RX 8000)
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 4.0 x16

Clock Speeds

-
Base Clock
1295 MHz
-
Boost Clock
2430 MHz
1375 MHz
Memory Clock
2438 MHz

Memory

2GB
Memory Size
16GB
GDDR5
Memory Type
GDDR6
256bit
Memory Bus
256bit
176.0GB/s
Bandwidth
624.1GB/s

Render Config

28
Compute Units
64
-
-
-
1792
Shading Units
4096
112
TMUs
256
32
ROPs
96
-
-
-
-
RT Cores
64
16 KB (per CU)
L1 Cache
128 KB per Array
512 KB
L2 Cache
4 MB
-
L3 Cache
64 MB

Theoretical Performance

29.38 GPixel/s
Pixel Rate
233.3 GPixel/s
102.8 GTexel/s
Texture Rate
622.1 GTexel/s
3.290 TFLOPS
FP16 (half)
39.81 TFLOPS
3.290 TFLOPS
FP32 (float)
19.91 TFLOPS
205.6 GFLOPS
FP64 (double)
622.1 GFLOPS

Board Design

190W
TDP
220W
450 W
Suggested PSU
550 W
2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
Outputs
1x HDMI 2.1a3x DisplayPort 2.1
2x 6-pin
Power Connectors
2x 8-pin

Graphics Processor

Tonga
GPU Name
Navi 48
Tonga PRO (215-0851128)
GPU Variant
Navi 48 XT
GCN 3.0
Architecture
RDNA 4.0
TSMC
Foundry
TSMC
28 nm
Process Size
4 nm
5 billion
Transistors
Unknown
366 mm²
Die Size
Unknown

Graphics Features

12 (12_0)
DirectX
12 Ultimate (12_2)
4.6
OpenGL
4.6
2.1
OpenCL
2.2
1.2.170
Vulkan
1.3
-
-
-
6.5
Shader Model
6.8

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