GPU Comparison
RADEON
AMD Radeon R9 M290X
CORE STATE
Neptune
VRAM
4 GB
CLOCK SPEED
900 MHz
TDP
100 W
BUS WIDTH
256 bit
ARCHITECTURE
GCN 1.0
PROCESS
28 nm
LAUNCH DATE
2014
VS
RADEON
Radeon RX 6800 XT
CORE STATE
Navi 21
VRAM
16 GB
CLOCK SPEED
2250 MHz
TDP
300 W
BUS WIDTH
256 bit
ARCHITECTURE
RDNA 2.0
PROCESS
7 nm
LAUNCH DATE
2020
PERFORMANCE BENCHMARKS
geekbench_metal
geekbench_opencl
3dmark_3dmark_steel_nomad_dx12
geekbench_vulkan
passmark_directx_10
passmark_directx_11
passmark_directx_12
passmark_directx_9
passmark_g2d
passmark_g3d
passmark_gpu_compute
DETAILED SPECIFICATIONS
SPECIFICATION
R9 M290X
RX 6800 XT
Core Specs
Shading Units
1,280
4,608
+260.0%
Shaders
1,280
4,608
+260.0%
TMUs
80
288
+260.0%
ROPs
32
128
+300.0%
Compute Units
20
72
+260.0%
Clocks
Base Clock
850 MHz
1825 MHz
Boost Clock
900 MHz
2250 MHz
Game Clock
—
2015 MHz
Memory Clock
1200 MHz
4.8 Gbps effective
2000 MHz
16 Gbps effective
Memory
Memory Size
4 GB
16 GB
VRAM (MB)
4,096
16,384
+300.0%
Memory Type
GDDR5
GDDR6
Memory Bus
256 bit
256 bit
Bandwidth
153.6 GB/s
512.0 GB/s
Cache
L1 Cache
16 KB (per CU)
128 KB per Array
L2 Cache
512 KB
4 MB
L3 Cache
—
128 MB
L0 Cache
—
32 KB per WGP
Performance
Pixel Rate
28.80 GPixel/s
288.0 GPixel/s
Texture Rate
72.00 GTexel/s
648.0 GTexel/s
FP32 (TFLOPS)
2.304 TFLOPS
20.74 TFLOPS
FP64 (TFLOPS)
144.0 GFLOPS (1:16)
1,296.0 GFLOPS (1:16)
FP16 (TFLOPS)
—
41.47 TFLOPS (2:1)
AI/RT
RT Cores
—
72
Power
TDP
100 W
300 W
TDP (W)
100
300
+200.0%
Suggested PSU
—
700 W
Power Connectors
None
2x 8-pin
Architecture
Architecture
GCN 1.0
RDNA 2.0
GPU Name
Neptune
Navi 21
Generation
Gem System
(R9 M200)
Navi II
(RX 6000)
Process Size
28 nm
7 nm
Transistors
2,800 million
26,800 million
Die Size
212 mm²
520 mm²
Foundry
TSMC
TSMC
Density
13.2M / mm²
51.5M / mm²
API Support
DirectX
12 (11_1)
12 Ultimate (12_2)
OpenGL
4.6
4.6
Vulkan
1.2.170
1.4
OpenCL
2.1 (1.2)
2.1
Shader Model
6.5 (5.1)
6.8
Physical
Slot Width
MXM Module
Dual-slot
Length
—
267 mm
10.5 inches
Height
—
120 mm
4.7 inches
Outputs
Portable Device Dependent
1x HDMI 2.12x DisplayPort 1.4a1x USB Type-C
Bus Interface
PCIe 3.0 x16
PCIe 4.0 x16
Other
Launch Price
—
649 USD
Production
End-of-life
End-of-life
Predecessor
Solar System
Navi
Successor
Polaris Mobile
Navi III