Radeon R9 295X2 vs Radeon RX 6800 XT
We compared two Desktop platform GPUs: 4GB VRAM Radeon R9 295X2 and 16GB VRAM Radeon RX 6800 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon RX 6800 XT 's Advantages
Released 6 years and 6 months late
Boost Clock2250MHz
More VRAM (16GB vs 4GB)
Larger VRAM bandwidth (512.0GB/s vs 320.0GB/s)
1792 additional rendering cores
Lower TDP (300W vs 500W)
Score
Benchmark
FP32 (float)
Radeon R9 295X2
5733
Radeon RX 6800 XT
+261%
20740
Graphics Card
Apr 2014
Release Date
Oct 2020
Volcanic Islands
Generation
Navi II
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 4.0 x16
Clock Speeds
-
Base Clock
1825 MHz
-
Boost Clock
2250 MHz
1250 MHz
Memory Clock
2000 MHz
Memory
4GB
Memory Size
16GB
GDDR5
Memory Type
GDDR6
512bit
Memory Bus
256bit
320.0GB/s
Bandwidth
512.0GB/s
Render Config
44
Compute Units
72
2816
Shading Units
4608
176
TMUs
288
64
ROPs
128
-
RT Cores
72
16 KB (per CU)
L1 Cache
128 KB per Array
1024 KB
L2 Cache
4 MB
-
L3 Cache
128 MB
Theoretical Performance
65.15 GPixel/s
Pixel Rate
288.0 GPixel/s
179.2 GTexel/s
Texture Rate
648.0 GTexel/s
-
FP16 (half)
41.47 TFLOPS
5.733 TFLOPS
FP32 (float)
20.74 TFLOPS
716.7 GFLOPS
FP64 (double)
1296 GFLOPS
Board Design
500W
TDP
300W
900 W
Suggested PSU
700 W
1x DVI
4x mini-DisplayPort 1.2
Outputs
1x HDMI 2.1
2x DisplayPort 1.4a
1x USB Type-C
2x 8-pin
Power Connectors
2x 8-pin
Graphics Processor
Vesuvius
GPU Name
Navi 21
Vesuvius XT
(215-0852022)
GPU Variant
Navi 21 XT
(215-121000177)
GCN 2.0
Architecture
RDNA 2.0
TSMC
Foundry
TSMC
28 nm
Process Size
7 nm
6.2 billion
Transistors
26.8 billion
438 mm²
Die Size
520 mm²
Graphics Features
12 (12_0)
DirectX
12 Ultimate (12_2)
4.6
OpenGL
4.6
2.0
OpenCL
2.1
1.2
Vulkan
1.3
6.3
Shader Model
6.5
