Radeon RX 6900 XT vs Radeon R9 295X2
We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 6900 XT and 4GB VRAM Radeon R9 295X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon RX 6900 XT 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)
2304 additional rendering cores
Lower TDP (300W vs 500W)
Score
Benchmark
FP32 (float)
Radeon RX 6900 XT
+301%
23040
Radeon R9 295X2
5733
Graphics Card
Oct 2020
Release Date
Apr 2014
Navi II
Generation
Volcanic Islands
Desktop
Type
Desktop
PCIe 4.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
1825 MHz
Base Clock
-
2250 MHz
Boost Clock
-
2000 MHz
Memory Clock
1250 MHz
Memory
16GB
Memory Size
4GB
GDDR6
Memory Type
GDDR5
256bit
Memory Bus
512bit
512.0GB/s
Bandwidth
320.0GB/s
Render Config
80
Compute Units
44
5120
Shading Units
2816
320
TMUs
176
128
ROPs
64
80
RT Cores
-
128 KB per Array
L1 Cache
16 KB (per CU)
4 MB
L2 Cache
1024 KB
128 MB
L3 Cache
-
Theoretical Performance
288.0 GPixel/s
Pixel Rate
65.15 GPixel/s
720.0 GTexel/s
Texture Rate
179.2 GTexel/s
46.08 TFLOPS
FP16 (half)
-
23.04 TFLOPS
FP32 (float)
5.733 TFLOPS
1440 GFLOPS
FP64 (double)
716.7 GFLOPS
Board Design
300W
TDP
500W
700 W
Suggested PSU
900 W
1x HDMI 2.1
2x DisplayPort 1.4a
1x USB Type-C
2x DisplayPort 1.4a
1x USB Type-C
Outputs
1x DVI
4x mini-DisplayPort 1.2
4x mini-DisplayPort 1.2
2x 8-pin
Power Connectors
2x 8-pin
Graphics Processor
Navi 21
GPU Name
Vesuvius
Navi 21 XTX
(215-121000167)
(215-121000167)
GPU Variant
Vesuvius XT
(215-0852022)
(215-0852022)
RDNA 2.0
Architecture
GCN 2.0
TSMC
Foundry
TSMC
7 nm
Process Size
28 nm
26.8 billion
Transistors
6.2 billion
520 mm²
Die Size
438 mm²
Graphics Features
12 Ultimate (12_2)
DirectX
12 (12_0)
4.6
OpenGL
4.6
2.1
OpenCL
2.0
1.3
Vulkan
1.2
6.5
Shader Model
6.3
