AMD Radeon RX 6900 XTX vs AMD Radeon HD 6950
GPU · Specs Compare
Graphics Card
Release Date
Unknown
Dec 2010
Generation
Navi II
Northern Islands
Type
Desktop
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 2.0 x16
Clock Speeds
Base Clock
2075 MHz
—
Boost Clock
2435 MHz
—
Memory Clock
2250 MHz
1250 MHz
Memory
Memory Size
16GB
2GB
Memory Type
GDDR6
GDDR5
Memory Bus
256bit
256bit
Bandwidth
576.0GB/s
160.0GB/s
Render Config
Compute Units
80
22
Shading Units
5120
1408
TMUs
320
88
ROPs
128
32
RT Cores
80
—
L1 Cache
128 KB per Array
8 KB (per CU)
L2 Cache
4 MB
512 KB
L3 Cache
128 MB
—
Theoretical Performance
Pixel Rate
311.7 GPixel/s
25.60 GPixel/s
Texture Rate
779.2 GTexel/s
70.40 GTexel/s
FP16 (half)
49.87 TFLOPS
—
FP32 (float)
24.93 TFLOPS
2.253 TFLOPS
FP64 (double)
1.558 TFLOPS
563.2 GFLOPS
Graphics Processor
GPU Name
Navi 21
Cayman
GPU Variant
Navi 21 XTXH(215-121000247)
Cayman PRO(215-0807019)
Architecture
RDNA 2.0
TeraScale 3
Foundry
TSMC
TSMC
Process Size
7 nm
40 nm
Transistors
26.8 billion
2.64 billion
Die Size
520 mm²
389 mm²
Board Design
TDP
330W
200W
Suggested PSU
700 W
550 W
Outputs
1x HDMI 2.12x DisplayPort 1.4a1x USB Type-C
2x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
Power Connectors
2x 8-pin
2x 6-pin
Graphics Features
DirectX
12 Ultimate (12_2)
11.2 (11_0)
OpenGL
4.6
4.4
OpenCL
2.1
1.2
Vulkan
1.3
N/A
Shader Model
6.5
5.0
▲ Specs Compare
Data sourced from official specifications and benchmark tests.