AMD Radeon R9 M290X vs AMD Radeon RX 6800 XT
GPU · Specs Compare
Graphics Card
Release Date
Jan 2014
Oct 2020
Generation
Gem System
Navi II
Type
Mobile
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 4.0 x16
Clock Speeds
Base Clock
850 MHz
1825 MHz
Boost Clock
900 MHz
2250 MHz
Memory Clock
1200 MHz
2000 MHz
Memory
Memory Size
4GB
16GB
Memory Type
GDDR5
GDDR6
Memory Bus
256bit
256bit
Bandwidth
153.6GB/s
512.0GB/s
Render Config
Compute Units
20
72
Shading Units
1280
4608
TMUs
80
288
ROPs
32
128
L1 Cache
16 KB (per CU)
128 KB per Array
L2 Cache
512 KB
4 MB
RT Cores
—
72
L3 Cache
—
128 MB
Theoretical Performance
Pixel Rate
28.80 GPixel/s
288.0 GPixel/s
Texture Rate
72.00 GTexel/s
648.0 GTexel/s
FP32 (float)
2.304 TFLOPS
20.74 TFLOPS
FP64 (double)
144.0 GFLOPS
1296 GFLOPS
FP16 (half)
—
41.47 TFLOPS
Graphics Processor
GPU Name
Neptune
Navi 21
GPU Variant
Neptune XT(216-0847000)
Navi 21 XT(215-121000177)
Architecture
GCN 1.0
RDNA 2.0
Foundry
TSMC
TSMC
Process Size
28 nm
7 nm
Transistors
2.8 billion
26.8 billion
Die Size
212 mm²
520 mm²
Board Design
TDP
100W
300W
Outputs
Portable Device Dependent
1x HDMI 2.12x DisplayPort 1.4a1x USB Type-C
Power Connectors
None
2x 8-pin
Suggested PSU
—
700 W
Graphics Features
DirectX
12 (11_1)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
2.1 (1.2)
2.1
Vulkan
1.2.170
1.3
Shader Model
6.5 (5.1)
6.5
Benchmark
3DMark Time Spy
—
19,329
▲ Specs Compare
Data sourced from official specifications and benchmark tests.