AMD Radeon RX 6800 3456SP vs AMD Radeon R9 295X2
GPU Specs Compare
Graphics Card
Release Date
Unknown
Apr 2014
Generation
Navi II
Volcanic Islands
Type
Desktop
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
1700 MHz
-
Boost Clock
2250 MHz
-
Memory Clock
2000 MHz
1250 MHz
Memory
Memory Size
16GB
4GB
Memory Type
GDDR6
GDDR5
Memory Bus
256bit
512bit
Bandwidth
512.0GB/s
320.0GB/s
Render Config
Compute Units
54
44
Shading Units
3456
2816
TMUs
216
176
ROPs
96
64
RT Cores
54
-
L1 Cache
128 KB per Array
16 KB (per CU)
L2 Cache
4 MB
1024 KB
L3 Cache
128 MB
-
Theoretical Performance
Pixel Rate
216.0 GPixel/s
65.15 GPixel/s
Texture Rate
486.0 GTexel/s
179.2 GTexel/s
FP16 (half)
31.10 TFLOPS
-
FP32 (float)
15.55 TFLOPS
5.733 TFLOPS
FP64 (double)
972.0 GFLOPS
716.7 GFLOPS
Graphics Processor
GPU Name
Navi 21
Vesuvius
GPU Variant
Navi 21 ES(215-121000066)
Vesuvius XT(215-0852022)
Architecture
RDNA 2.0
GCN 2.0
Foundry
TSMC
TSMC
Process Size
7 nm
28 nm
Transistors
26.8 billion
6.2 billion
Die Size
520 mm²
438 mm²
Board Design
TDP
250W
500W
Suggested PSU
600 W
900 W
Outputs
1x HDMI 2.12x DisplayPort 1.4a1x USB Type-C
1x DVI4x mini-DisplayPort 1.2
Power Connectors
2x 8-pin
2x 8-pin
Graphics Features
DirectX
12 Ultimate (12_2)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
2.1
2.0
Vulkan
1.3
1.2
Shader Model
6.8
6.3