Home GPU Comparison AMD Radeon R7 265X OEM vs AMD Radeon R9 285

AMD Radeon R7 265X OEM vs AMD Radeon R9 285

We compared two Desktop platform GPUs: 2GB VRAM Radeon R7 265X OEM and 2GB VRAM Radeon R9 285 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R7 265X OEM 's Advantages
Boost Clock925MHz
Larger VRAM bandwidth (179.2GB/s vs 176.0GB/s)
Lower TDP (150W vs 190W)
AMD Radeon R9 285 's Advantages
512 additional rendering cores

Score

Benchmark

FP32 (float)
Radeon R7 265X OEM
2.368 TFLOPS
Radeon R9 285 +38%
3.29 TFLOPS
VS

Graphics Card

Aug 2014
Release Date
Sep 2014
Volcanic Islands
Generation
Volcanic Islands
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16

Clock Speeds

900 MHz
Base Clock
-
925 MHz
Boost Clock
-
1400 MHz
Memory Clock
1375 MHz

Memory

2GB
Memory Size
2GB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
256bit
179.2GB/s
Bandwidth
176.0GB/s

Render Config

20
Compute Units
28
-
-
-
1280
Shading Units
1792
80
TMUs
112
32
ROPs
32
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
512 KB
L2 Cache
512 KB
-
-
-

Theoretical Performance

29.60 GPixel/s
Pixel Rate
29.38 GPixel/s
74.00 GTexel/s
Texture Rate
102.8 GTexel/s
-
FP16 (half)
3.290 TFLOPS
2.368 TFLOPS
FP32 (float)
3.290 TFLOPS
148.0 GFLOPS
FP64 (double)
205.6 GFLOPS

Board Design

150W
TDP
190W
450 W
Suggested PSU
450 W
2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
Outputs
2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
1x 6-pin
Power Connectors
2x 6-pin

Graphics Processor

Curacao
GPU Name
Tonga
Curacao PRO (215-0848000)
GPU Variant
Tonga PRO (215-0851128)
GCN 1.0
Architecture
GCN 3.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
2.8 billion
Transistors
5 billion
212 mm²
Die Size
366 mm²

Graphics Features

12 (11_1)
DirectX
12 (12_0)
4.6
OpenGL
4.6
1.2
OpenCL
2.1
1.2
Vulkan
1.2.170
-
-
-
5.1
Shader Model
6.5

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