AMD Radeon RX 7950 XT vs AMD Radeon HD 8870 OEM
GPU Specs Compare
Graphics Card
Release Date
Unknown
Jan 2013
Generation
Navi III
Sea Islands
Type
Desktop
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
2000 MHz
-
Boost Clock
3000 MHz
-
Memory Clock
2500 MHz
1200 MHz
Memory
Memory Size
20GB
2GB
Memory Type
GDDR6
GDDR5
Memory Bus
320bit
256bit
Bandwidth
800.0GB/s
153.6GB/s
Render Config
Compute Units
84
20
Shading Units
5376
1280
TMUs
336
80
ROPs
192
32
RT Cores
84
-
L1 Cache
256 KB per Array
16 KB (per CU)
L2 Cache
6 MB
512 KB
L3 Cache
80 MB
-
Theoretical Performance
Pixel Rate
576.0 GPixel/s
32.00 GPixel/s
Texture Rate
1008 GTexel/s
80.00 GTexel/s
FP16 (half)
129.0 TFLOPS
-
FP32 (float)
64.51 TFLOPS
2.560 TFLOPS
FP64 (double)
2.016 TFLOPS
160.0 GFLOPS
Graphics Processor
GPU Name
Navi 31
Pitcairn
GPU Variant
Navi 31 XT+
Pitcairn XT(215-0828047)
Architecture
RDNA 3.0
GCN 1.0
Foundry
TSMC
TSMC
Process Size
5 nm
28 nm
Transistors
57.7 billion
2.8 billion
Die Size
529 mm²
212 mm²
Board Design
TDP
300W
175W
Suggested PSU
700 W
450 W
Outputs
1x HDMI 2.1a2x DisplayPort 2.11x USB Type-C
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
Power Connectors
2x 8-pin
2x 6-pin
Graphics Features
DirectX
12 Ultimate (12_2)
12 (11_1)
OpenGL
4.6
4.6
OpenCL
2.2
1.2
Vulkan
1.3
1.2
Shader Model
6.7
5.1