AMD Radeon RX 7900 GRE vs AMD Radeon HD 7850
GPU Specs Compare
Graphics Card
Release Date
Jul 2023
Mar 2012
Generation
Navi III
Southern Islands
Type
Desktop
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
1287 MHz
-
Boost Clock
2245 MHz
-
Memory Clock
2250 MHz
1200 MHz
Memory
Memory Size
16GB
2GB
Memory Type
GDDR6
GDDR5
Memory Bus
256bit
256bit
Bandwidth
576.0GB/s
153.6GB/s
Render Config
Compute Units
80
16
Shading Units
5120
1024
TMUs
320
64
ROPs
160
32
RT Cores
80
-
L1 Cache
256 KB per Array
16 KB (per CU)
L2 Cache
6 MB
512 KB
L3 Cache
64 MB
-
Theoretical Performance
Pixel Rate
359.2 GPixel/s
27.52 GPixel/s
Texture Rate
718.4 GTexel/s
55.04 GTexel/s
FP16 (half)
91.96 TFLOPS
-
FP32 (float)
45.98 TFLOPS
1.761 TFLOPS
FP64 (double)
1436.8 GFLOPS
110.1 GFLOPS
Graphics Processor
GPU Name
Navi 31
Pitcairn
GPU Variant
Navi 31 XL(215-145000206)
Pitcairn PRO(215-0828062)
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
260W
130W
Suggested PSU
600 W
300 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
1x 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
6.8
5.1
📊 Benchmark
3DMark Time Spy
22,476
1,334
3DMark Time Spy Extreme
10,591
325
3DMark Speed Way
4,417
-
Cyberpunk 2077 2160p
40
-
Cyberpunk 2077 1440p
88
-
Blender
3,114
-
Cyberpunk 2077 1080p
130
-