AMD Radeon R7 265X OEM vs AMD Radeon R9 270

What is the difference between AMD Radeon R7 265X OEM and AMD Radeon R9 270. Find out which graphics card has better performance.

Graphics Processor (GPU)

CuracaoGPU NameCuracao
Curacao PRO
(215-0848000)
Model numberCuracao PRO
(215-0848000)
GCN 1.0ArchitectureGCN 1.0
TSMCFoundryTSMC
28 nmProcess Size28 nm
2,800 millionTransistors2,800 million
212 mm²Die Size212 mm²

Graphics Card

Aug 12th, 2014Release DateNov 13th, 2013
Volcanic Islands
(R7 200)
FamilyVolcanic Islands
(R9 200)
End-of-lifeProductionEnd-of-life
Sea IslandsPredecessorSea Islands
PCIe 3.0 x16Bus InterfacePCIe 3.0 x16

Memory

2 GBMemory Size2 GB
GDDR5Memory TypeGDDR5
256 bitMemory Bus256 bit
179.2 GB/sBandwidth179.2 GB/s

Performance

29.60 GPixel/sPixel fillrate29.60 GPixel/s
74.00 GTexel/sTexture fillrate74.00 GTexel/s
2.368 TFLOPSFP32 (float) performance2.368 TFLOPS
148.0 GFLOPS (1:16)FP64 (double) performance148.0 GFLOPS (1:16)

Clock Speeds

900 MHzBase Clock900 MHz
925 MHzBoost Clock925 MHz
1400 MHz
5.6 Gbps effective
Memory Clock1400 MHz
5.6 Gbps effective

Render Config

1280Shading Units1280
80TMUs80
32ROPs32
20Compute Units20
16 KB (per CU)L1 Cache16 KB (per CU)
512 KBL2 Cache512 KB

Board Design

Dual-slotSlot WidthDual-slot
210 mm
8.3 inches
Length210 mm
8.3 inches
150 WThermal design power (TDP)150 W
450 WSuggested PSU450 W
2x DVI
1x HDMI
1x DisplayPort
Display Connectors2x DVI
1x HDMI
1x DisplayPort
1x 6-pinPower Connectors1x 6-pin

API support

12 (11_1)DirectX12 (11_1)
4.6OpenGL4.6
1.2OpenCL1.2
1.2Vulkan1.2
5.1Shader Model5.1