Home GPU Comparison AMD Radeon R9 290X2 vs AMD Radeon HD 7850

AMD Radeon R9 290X2 vs AMD Radeon HD 7850

We compared two Desktop platform GPUs: 4GB VRAM Radeon R9 290X2 and 2GB VRAM Radeon HD 7850 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 290X2 's Advantages
Released 2 years and 3 months late
More VRAM (4GB vs 2GB)
Larger VRAM bandwidth (345.6GB/s vs 153.6GB/s)
1792 additional rendering cores
AMD Radeon HD 7850 's Advantages
Lower TDP (130W vs 580W)

Score

Benchmark

FP32 (float)
Radeon R9 290X2 +219%
5.632 TFLOPS
Radeon HD 7850
1.761 TFLOPS
VS

Graphics Card

Jun 2014
Release Date
Mar 2012
Volcanic Islands
Generation
Southern Islands
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16

Clock Speeds

-
-
-
-
-
-
1350 MHz
Memory Clock
1200 MHz

Memory

4GB
Memory Size
2GB
GDDR5
Memory Type
GDDR5
512bit
Memory Bus
256bit
345.6GB/s
Bandwidth
153.6GB/s

Render Config

44
Compute Units
16
-
-
-
2816
Shading Units
1024
176
TMUs
64
64
ROPs
32
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
1024 KB
L2 Cache
512 KB
-
-
-

Theoretical Performance

64.00 GPixel/s
Pixel Rate
27.52 GPixel/s
176.0 GTexel/s
Texture Rate
55.04 GTexel/s
-
-
-
5.632 TFLOPS
FP32 (float)
1.761 TFLOPS
704.0 GFLOPS
FP64 (double)
110.1 GFLOPS

Board Design

580W
TDP
130W
950 W
Suggested PSU
300 W
2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
Outputs
1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2
4x 8-pin
Power Connectors
1x 6-pin

Graphics Processor

Hawaii
GPU Name
Pitcairn
Hawaii XT (215-0852000)
GPU Variant
Pitcairn PRO (215-0828062)
GCN 2.0
Architecture
GCN 1.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
6.2 billion
Transistors
2.8 billion
438 mm²
Die Size
212 mm²

Graphics Features

12 (12_0)
DirectX
12 (11_1)
4.6
OpenGL
4.6
2.0
OpenCL
1.2
1.2
Vulkan
1.2
-
-
-
6.3
Shader Model
5.1

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