AMD Radeon HD 7850 vs AMD Radeon R9 280X
We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 7850 and 3GB VRAM Radeon R9 280X 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 250W)
AMD Radeon R9 280X 's Advantages
Released 1 years and 7 months late
Boost Clock1000MHz
More VRAM (3GB vs 2GB)
Larger VRAM bandwidth (288.0GB/s vs 153.6GB/s)
1024 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon HD 7850
1.761 TFLOPS
Radeon R9 280X
+132%
4.096 TFLOPS
3DMark Time Spy
Radeon HD 7850
1334
Radeon R9 280X
+76%
2348
Graphics Card
Mar 2012
Release Date
Oct 2013
Southern Islands
Generation
Volcanic Islands
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
Base Clock
850 MHz
-
Boost Clock
1000 MHz
1200 MHz
Memory Clock
1500 MHz
Memory
2GB
Memory Size
3GB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
384bit
153.6GB/s
Bandwidth
288.0GB/s
Render Config
16
Compute Units
32
-
-
-
1024
Shading Units
2048
64
TMUs
128
32
ROPs
32
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
512 KB
L2 Cache
768 KB
-
-
-
Theoretical Performance
27.52 GPixel/s
Pixel Rate
32.00 GPixel/s
55.04 GTexel/s
Texture Rate
128.0 GTexel/s
-
-
-
1.761 TFLOPS
FP32 (float)
4.096 TFLOPS
110.1 GFLOPS
FP64 (double)
1024 GFLOPS
Board Design
130W
TDP
250W
300 W
Suggested PSU
600 W
1x DVI
1x HDMI 1.4a
2x mini-DisplayPort 1.2
Outputs
2x DVI
1x HDMI 1.4a
1x DisplayPort 1.2
1x 6-pin
Power Connectors
1x 6-pin + 1x 8-pin
Graphics Processor
Pitcairn
GPU Name
Tahiti
Pitcairn PRO
(215-0828062)
GPU Variant
Tahiti XTL
(215-0821065)
GCN 1.0
Architecture
GCN 1.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
2.8 billion
Transistors
4.313 billion
212 mm²
Die Size
352 mm²
Graphics Features
12 (11_1)
DirectX
12 (11_1)
4.6
OpenGL
4.6
1.2
OpenCL
1.2
1.2
Vulkan
1.2
-
-
-
5.1
Shader Model
5.1
