AMD Radeon HD 7850 vs AMD Radeon RX 7900 GRE
We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 7850 and 16GB VRAM Radeon RX 7900 GRE to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon HD 7850 's Advantages
Lower TDP (130W vs 260W)
AMD Radeon RX 7900 GRE 's Advantages
Released 11 years and 4 months late
Boost Clock2245MHz
More VRAM (16GB vs 2GB)
Larger VRAM bandwidth (576.0GB/s vs 153.6GB/s)
4096 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon HD 7850
1.761 TFLOPS
Radeon RX 7900 GRE
+2511%
45.98 TFLOPS
3DMark Time Spy
Radeon HD 7850
1334
Radeon RX 7900 GRE
+1584%
22476
3DMark Time Spy Extreme
Radeon HD 7850
325
Radeon RX 7900 GRE
+3158%
10591
Graphics Card
Mar 2012
Release Date
Jul 2023
Southern Islands
Generation
Navi III(RX 7000)
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 4.0 x16
Clock Speeds
-
Base Clock
1287 MHz
-
Boost Clock
2245 MHz
1200 MHz
Memory Clock
2250 MHz
Memory
2GB
Memory Size
16GB
GDDR5
Memory Type
GDDR6
256bit
Memory Bus
256bit
153.6GB/s
Bandwidth
576.0GB/s
Render Config
16
Compute Units
80
-
-
-
1024
Shading Units
5120
64
TMUs
320
32
ROPs
160
-
-
-
-
RT Cores
80
16 KB (per CU)
L1 Cache
256 KB per Array
512 KB
L2 Cache
6 MB
-
L3 Cache
64 MB
Theoretical Performance
27.52 GPixel/s
Pixel Rate
359.2 GPixel/s
55.04 GTexel/s
Texture Rate
718.4 GTexel/s
-
FP16 (half)
91.96 TFLOPS
1.761 TFLOPS
FP32 (float)
45.98 TFLOPS
110.1 GFLOPS
FP64 (double)
1437 GFLOPS
Board Design
130W
TDP
260W
300 W
Suggested PSU
600 W
1x DVI
1x HDMI 1.4a
2x mini-DisplayPort 1.2
Outputs
1x HDMI 2.1a
2x DisplayPort 2.1
1x USB Type-C
1x 6-pin
Power Connectors
2x 8-pin
Graphics Processor
Pitcairn
GPU Name
Navi 31
Pitcairn PRO
(215-0828062)
GPU Variant
Navi 31 XL
(215-145000206)
GCN 1.0
Architecture
RDNA 3.0
TSMC
Foundry
TSMC
28 nm
Process Size
5 nm
2.8 billion
Transistors
57.7 billion
212 mm²
Die Size
529 mm²
Graphics Features
12 (11_1)
DirectX
12 Ultimate (12_2)
4.6
OpenGL
4.6
1.2
OpenCL
2.2
1.2
Vulkan
1.3
-
-
-
5.1
Shader Model
6.8
